[INFO] fetching crate pbrt 0.1.5...
[INFO] testing pbrt-0.1.5 against 1.54.0 for beta-1.55-1
[INFO] extracting crate pbrt 0.1.5 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate pbrt 0.1.5 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pbrt 0.1.5
[INFO] finished tweaking crates.io crate pbrt 0.1.5
[INFO] tweaked toml for crates.io crate pbrt 0.1.5 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] crate crates.io crate pbrt 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b53080a736bc2a3363118b0352da0b2fe83522bb190827bc505c1eac62d80d4c
[INFO] running `Command { std: "docker" "start" "-a" "b53080a736bc2a3363118b0352da0b2fe83522bb190827bc505c1eac62d80d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b53080a736bc2a3363118b0352da0b2fe83522bb190827bc505c1eac62d80d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b53080a736bc2a3363118b0352da0b2fe83522bb190827bc505c1eac62d80d4c", kill_on_drop: false }`
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[INFO] [stdout] 60dcb65cc32ddd0769e31242ef7174de96df8dc27358b1c6d186615dfc0824a9
[INFO] running `Command { std: "docker" "start" "-a" "60dcb65cc32ddd0769e31242ef7174de96df8dc27358b1c6d186615dfc0824a9", kill_on_drop: false }`
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[INFO] [stderr]    Compiling memchr v1.0.2
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[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.10
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[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
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[INFO] [stderr]    Compiling png v0.15.2
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[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling tiff v0.3.1
[INFO] [stderr]    Compiling image v0.22.3
[INFO] [stderr]    Compiling structopt v0.3.5
[INFO] [stderr]    Compiling pbrt v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `has_nans`
[INFO] [stdout]   --> src/core/spectrum.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn has_nans(&self) -> bool {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 | common_implementation!(SampledSpectrum, N_SPECTRAL_SAMPLES);
[INFO] [stdout]    | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `common_implementation` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 374 |         verify_options!(self, "pbrt.world_begin");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 374 |         verify_options!(self, "pbrt.world_begin");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 386 |         verify_world!(self, "pbrt.world_end");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 386 |         verify_world!(self, "pbrt.world_end");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 430 |         verify_world!(self, "pbrt.attribute_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 430 |         verify_world!(self, "pbrt.attribute_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 440 |         verify_world!(self, "pbrt.attribute_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 440 |         verify_world!(self, "pbrt.attribute_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 455 |         verify_world!(self, "pbrt.transform_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 455 |         verify_world!(self, "pbrt.transform_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 463 |         verify_world!(self, "pbrt.transform_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 463 |         verify_world!(self, "pbrt.transform_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 474 |         verify_world!(self, "pbrt.texture");
[INFO] [stdout]     |         ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 474 |         verify_world!(self, "pbrt.texture");
[INFO] [stdout]     |         ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 536 |         verify_initialized!(self, "identity");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 559 |         verify_initialized!(self, "translate");
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 613 |         verify_initialized!(self, "pbrt.rotate");
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 619 |         verify_initialized!(self, "pbrt.look_at");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 643 |         verify_initialized!(self, "pbrt.scale");
[INFO] [stdout]     |         ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 649 |         verify_initialized!(self, "pbrt.concat_transform");
[INFO] [stdout]     |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 655 |         verify_initialized!(self, "pbrt.transform");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 661 |         verify_initialized!(self, "pbrt.coordinate_system");
[INFO] [stdout]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 668 |         verify_initialized!(self, "pbrt.coordinate_system_transform");
[INFO] [stdout]     |         -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 692 |         verify_options!(self, "pbrt.tranform_times");
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 692 |         verify_options!(self, "pbrt.tranform_times");
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 699 |         verify_options!(self, "pbrt.pixel_filter");
[INFO] [stdout]     |         ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 699 |         verify_options!(self, "pbrt.pixel_filter");
[INFO] [stdout]     |         ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 706 |         verify_options!(self, "pbrt.film");
[INFO] [stdout]     |         ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 706 |         verify_options!(self, "pbrt.film");
[INFO] [stdout]     |         ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 713 |         verify_options!(self, "pbrt.sampler");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 713 |         verify_options!(self, "pbrt.sampler");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 720 |         verify_options!(self, "pbrt.accelerator");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 720 |         verify_options!(self, "pbrt.accelerator");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 727 |         verify_options!(self, "pbrt.integrator");
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 727 |         verify_options!(self, "pbrt.integrator");
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 734 |         verify_options!(self, "pbrt.camera");
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 734 |         verify_options!(self, "pbrt.camera");
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 744 |         verify_initialized!(self, "pbrt.make_named_medium");
[INFO] [stdout]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 754 |         verify_initialized!(self, "pbrt.medium_interface");
[INFO] [stdout]     |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/parser.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |           _ => panic!(format!(
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 264 | |             "unhandled param_set_item {:?}",
[INFO] [stdout] 265 | |             str::from_utf8(psi_type).unwrap()
[INFO] [stdout] 266 | |         )),
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 263 |         _ => panic!(
[INFO] [stdout] 264 |             "unhandled param_set_item {:?}",
[INFO] [stdout] 265 |             str::from_utf8(psi_type).unwrap()
[INFO] [stdout] 266 |         ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 41 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.16s
[INFO] running `Command { std: "docker" "inspect" "60dcb65cc32ddd0769e31242ef7174de96df8dc27358b1c6d186615dfc0824a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60dcb65cc32ddd0769e31242ef7174de96df8dc27358b1c6d186615dfc0824a9", kill_on_drop: false }`
[INFO] [stdout] 60dcb65cc32ddd0769e31242ef7174de96df8dc27358b1c6d186615dfc0824a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee1d634a77626694319e722548293d15d0e048131ed96a6c571c21116e2c4118
[INFO] running `Command { std: "docker" "start" "-a" "ee1d634a77626694319e722548293d15d0e048131ed96a6c571c21116e2c4118", kill_on_drop: false }`
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stdout] warning: associated function is never used: `has_nans`
[INFO] [stdout]   --> src/core/spectrum.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn has_nans(&self) -> bool {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 | common_implementation!(SampledSpectrum, N_SPECTRAL_SAMPLES);
[INFO] [stdout]    | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `common_implementation` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 374 |         verify_options!(self, "pbrt.world_begin");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 374 |         verify_options!(self, "pbrt.world_begin");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 386 |         verify_world!(self, "pbrt.world_end");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 386 |         verify_world!(self, "pbrt.world_end");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 430 |         verify_world!(self, "pbrt.attribute_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 430 |         verify_world!(self, "pbrt.attribute_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 440 |         verify_world!(self, "pbrt.attribute_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 440 |         verify_world!(self, "pbrt.attribute_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 455 |         verify_world!(self, "pbrt.transform_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 455 |         verify_world!(self, "pbrt.transform_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 463 |         verify_world!(self, "pbrt.transform_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 463 |         verify_world!(self, "pbrt.transform_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 474 |         verify_world!(self, "pbrt.texture");
[INFO] [stdout]     |         ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 474 |         verify_world!(self, "pbrt.texture");
[INFO] [stdout]     |         ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 536 |         verify_initialized!(self, "identity");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 559 |         verify_initialized!(self, "translate");
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 613 |         verify_initialized!(self, "pbrt.rotate");
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 619 |         verify_initialized!(self, "pbrt.look_at");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 643 |         verify_initialized!(self, "pbrt.scale");
[INFO] [stdout]     |         ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 649 |         verify_initialized!(self, "pbrt.concat_transform");
[INFO] [stdout]     |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 655 |         verify_initialized!(self, "pbrt.transform");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 661 |         verify_initialized!(self, "pbrt.coordinate_system");
[INFO] [stdout]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 668 |         verify_initialized!(self, "pbrt.coordinate_system_transform");
[INFO] [stdout]     |         -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 692 |         verify_options!(self, "pbrt.tranform_times");
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 692 |         verify_options!(self, "pbrt.tranform_times");
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 699 |         verify_options!(self, "pbrt.pixel_filter");
[INFO] [stdout]     |         ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 699 |         verify_options!(self, "pbrt.pixel_filter");
[INFO] [stdout]     |         ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 706 |         verify_options!(self, "pbrt.film");
[INFO] [stdout]     |         ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 706 |         verify_options!(self, "pbrt.film");
[INFO] [stdout]     |         ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 713 |         verify_options!(self, "pbrt.sampler");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 713 |         verify_options!(self, "pbrt.sampler");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 720 |         verify_options!(self, "pbrt.accelerator");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 720 |         verify_options!(self, "pbrt.accelerator");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 727 |         verify_options!(self, "pbrt.integrator");
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 727 |         verify_options!(self, "pbrt.integrator");
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 734 |         verify_options!(self, "pbrt.camera");
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 734 |         verify_options!(self, "pbrt.camera");
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 744 |         verify_initialized!(self, "pbrt.make_named_medium");
[INFO] [stdout]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 754 |         verify_initialized!(self, "pbrt.medium_interface");
[INFO] [stdout]     |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/parser.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |           _ => panic!(format!(
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 264 | |             "unhandled param_set_item {:?}",
[INFO] [stdout] 265 | |             str::from_utf8(psi_type).unwrap()
[INFO] [stdout] 266 | |         )),
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 263 |         _ => panic!(
[INFO] [stdout] 264 |             "unhandled param_set_item {:?}",
[INFO] [stdout] 265 |             str::from_utf8(psi_type).unwrap()
[INFO] [stdout] 266 |         ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 41 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pretty_assertions v0.5.1
[INFO] [stderr]    Compiling pbrt v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `has_nans`
[INFO] [stdout]   --> src/core/spectrum.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn has_nans(&self) -> bool {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 | common_implementation!(SampledSpectrum, N_SPECTRAL_SAMPLES);
[INFO] [stdout]    | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `common_implementation` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 374 |         verify_options!(self, "pbrt.world_begin");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 374 |         verify_options!(self, "pbrt.world_begin");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 386 |         verify_world!(self, "pbrt.world_end");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 386 |         verify_world!(self, "pbrt.world_end");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 430 |         verify_world!(self, "pbrt.attribute_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 430 |         verify_world!(self, "pbrt.attribute_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 440 |         verify_world!(self, "pbrt.attribute_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 440 |         verify_world!(self, "pbrt.attribute_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 455 |         verify_world!(self, "pbrt.transform_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 455 |         verify_world!(self, "pbrt.transform_begin");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 463 |         verify_world!(self, "pbrt.transform_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 463 |         verify_world!(self, "pbrt.transform_end");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 474 |         verify_world!(self, "pbrt.texture");
[INFO] [stdout]     |         ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:231:34
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 474 |         verify_world!(self, "pbrt.texture");
[INFO] [stdout]     |         ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 536 |         verify_initialized!(self, "identity");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 559 |         verify_initialized!(self, "translate");
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 613 |         verify_initialized!(self, "pbrt.rotate");
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 619 |         verify_initialized!(self, "pbrt.look_at");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 643 |         verify_initialized!(self, "pbrt.scale");
[INFO] [stdout]     |         ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 649 |         verify_initialized!(self, "pbrt.concat_transform");
[INFO] [stdout]     |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 655 |         verify_initialized!(self, "pbrt.transform");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 661 |         verify_initialized!(self, "pbrt.coordinate_system");
[INFO] [stdout]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 668 |         verify_initialized!(self, "pbrt.coordinate_system_transform");
[INFO] [stdout]     |         -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 692 |         verify_options!(self, "pbrt.tranform_times");
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 692 |         verify_options!(self, "pbrt.tranform_times");
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 699 |         verify_options!(self, "pbrt.pixel_filter");
[INFO] [stdout]     |         ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 699 |         verify_options!(self, "pbrt.pixel_filter");
[INFO] [stdout]     |         ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 706 |         verify_options!(self, "pbrt.film");
[INFO] [stdout]     |         ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 706 |         verify_options!(self, "pbrt.film");
[INFO] [stdout]     |         ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 713 |         verify_options!(self, "pbrt.sampler");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 713 |         verify_options!(self, "pbrt.sampler");
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 720 |         verify_options!(self, "pbrt.accelerator");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 720 |         verify_options!(self, "pbrt.accelerator");
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 727 |         verify_options!(self, "pbrt.integrator");
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 727 |         verify_options!(self, "pbrt.integrator");
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 734 |         verify_options!(self, "pbrt.camera");
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:215:34
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 734 |         verify_options!(self, "pbrt.camera");
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 744 |         verify_initialized!(self, "pbrt.make_named_medium");
[INFO] [stdout]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/api.rs:199:34
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, msg);
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 754 |         verify_initialized!(self, "pbrt.medium_interface");
[INFO] [stdout]     |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/core/parser.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |           _ => panic!(format!(
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 264 | |             "unhandled param_set_item {:?}",
[INFO] [stdout] 265 | |             str::from_utf8(psi_type).unwrap()
[INFO] [stdout] 266 | |         )),
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 263 |         _ => panic!(
[INFO] [stdout] 264 |             "unhandled param_set_item {:?}",
[INFO] [stdout] 265 |             str::from_utf8(psi_type).unwrap()
[INFO] [stdout] 266 |         ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 41 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.98s
[INFO] running `Command { std: "docker" "inspect" "ee1d634a77626694319e722548293d15d0e048131ed96a6c571c21116e2c4118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee1d634a77626694319e722548293d15d0e048131ed96a6c571c21116e2c4118", kill_on_drop: false }`
[INFO] [stdout] ee1d634a77626694319e722548293d15d0e048131ed96a6c571c21116e2c4118
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b1ae4610b755ac05c0092d27c93345f3ec24877e10630824a23a22e21081ea61
[INFO] running `Command { std: "docker" "start" "-a" "b1ae4610b755ac05c0092d27c93345f3ec24877e10630824a23a22e21081ea61", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `has_nans`
[INFO] [stderr]   --> src/core/spectrum.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn has_nans(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 | common_implementation!(SampledSpectrum, N_SPECTRAL_SAMPLES);
[INFO] [stderr]    | ------------------------------------------------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `common_implementation` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 374 |         verify_options!(self, "pbrt.world_begin");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 374 |         verify_options!(self, "pbrt.world_begin");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 386 |         verify_world!(self, "pbrt.world_end");
[INFO] [stderr]     |         -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 386 |         verify_world!(self, "pbrt.world_end");
[INFO] [stderr]     |         -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 430 |         verify_world!(self, "pbrt.attribute_begin");
[INFO] [stderr]     |         -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 430 |         verify_world!(self, "pbrt.attribute_begin");
[INFO] [stderr]     |         -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 440 |         verify_world!(self, "pbrt.attribute_end");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 440 |         verify_world!(self, "pbrt.attribute_end");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 455 |         verify_world!(self, "pbrt.transform_begin");
[INFO] [stderr]     |         -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 455 |         verify_world!(self, "pbrt.transform_begin");
[INFO] [stderr]     |         -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 463 |         verify_world!(self, "pbrt.transform_end");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 463 |         verify_world!(self, "pbrt.transform_end");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 474 |         verify_world!(self, "pbrt.texture");
[INFO] [stderr]     |         ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 474 |         verify_world!(self, "pbrt.texture");
[INFO] [stderr]     |         ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 536 |         verify_initialized!(self, "identity");
[INFO] [stderr]     |         -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 559 |         verify_initialized!(self, "translate");
[INFO] [stderr]     |         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 613 |         verify_initialized!(self, "pbrt.rotate");
[INFO] [stderr]     |         ----------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 619 |         verify_initialized!(self, "pbrt.look_at");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 643 |         verify_initialized!(self, "pbrt.scale");
[INFO] [stderr]     |         ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 649 |         verify_initialized!(self, "pbrt.concat_transform");
[INFO] [stderr]     |         --------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 655 |         verify_initialized!(self, "pbrt.transform");
[INFO] [stderr]     |         -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 661 |         verify_initialized!(self, "pbrt.coordinate_system");
[INFO] [stderr]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 668 |         verify_initialized!(self, "pbrt.coordinate_system_transform");
[INFO] [stderr]     |         -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 692 |         verify_options!(self, "pbrt.tranform_times");
[INFO] [stderr]     |         --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 692 |         verify_options!(self, "pbrt.tranform_times");
[INFO] [stderr]     |         --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 699 |         verify_options!(self, "pbrt.pixel_filter");
[INFO] [stderr]     |         ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 699 |         verify_options!(self, "pbrt.pixel_filter");
[INFO] [stderr]     |         ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 706 |         verify_options!(self, "pbrt.film");
[INFO] [stderr]     |         ----------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 706 |         verify_options!(self, "pbrt.film");
[INFO] [stderr]     |         ----------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 713 |         verify_options!(self, "pbrt.sampler");
[INFO] [stderr]     |         -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 713 |         verify_options!(self, "pbrt.sampler");
[INFO] [stderr]     |         -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 720 |         verify_options!(self, "pbrt.accelerator");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 720 |         verify_options!(self, "pbrt.accelerator");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 727 |         verify_options!(self, "pbrt.integrator");
[INFO] [stderr]     |         ----------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 727 |         verify_options!(self, "pbrt.integrator");
[INFO] [stderr]     |         ----------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 734 |         verify_options!(self, "pbrt.camera");
[INFO] [stderr]     |         ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 734 |         verify_options!(self, "pbrt.camera");
[INFO] [stderr]     |         ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 744 |         verify_initialized!(self, "pbrt.make_named_medium");
[INFO] [stderr]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 754 |         verify_initialized!(self, "pbrt.medium_interface");
[INFO] [stderr]     |         --------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/parser.rs:263:21
[INFO] [stderr]     |
[INFO] [stderr] 263 |           _ => panic!(format!(
[INFO] [stderr]     |  _____________________^
[INFO] [stderr] 264 | |             "unhandled param_set_item {:?}",
[INFO] [stderr] 265 | |             str::from_utf8(psi_type).unwrap()
[INFO] [stderr] 266 | |         )),
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 263 |         _ => panic!(
[INFO] [stderr] 264 |             "unhandled param_set_item {:?}",
[INFO] [stderr] 265 |             str::from_utf8(psi_type).unwrap()
[INFO] [stderr] 266 |         ),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 41 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `has_nans`
[INFO] [stderr]   --> src/core/spectrum.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn has_nans(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 | common_implementation!(SampledSpectrum, N_SPECTRAL_SAMPLES);
[INFO] [stderr]    | ------------------------------------------------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `common_implementation` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 374 |         verify_options!(self, "pbrt.world_begin");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 374 |         verify_options!(self, "pbrt.world_begin");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 386 |         verify_world!(self, "pbrt.world_end");
[INFO] [stderr]     |         -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 386 |         verify_world!(self, "pbrt.world_end");
[INFO] [stderr]     |         -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 430 |         verify_world!(self, "pbrt.attribute_begin");
[INFO] [stderr]     |         -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 430 |         verify_world!(self, "pbrt.attribute_begin");
[INFO] [stderr]     |         -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 440 |         verify_world!(self, "pbrt.attribute_end");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 440 |         verify_world!(self, "pbrt.attribute_end");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 455 |         verify_world!(self, "pbrt.transform_begin");
[INFO] [stderr]     |         -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 455 |         verify_world!(self, "pbrt.transform_begin");
[INFO] [stderr]     |         -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 463 |         verify_world!(self, "pbrt.transform_end");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 463 |         verify_world!(self, "pbrt.transform_end");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 474 |         verify_world!(self, "pbrt.texture");
[INFO] [stderr]     |         ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 474 |         verify_world!(self, "pbrt.texture");
[INFO] [stderr]     |         ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_world` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 231 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 536 |         verify_initialized!(self, "identity");
[INFO] [stderr]     |         -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 559 |         verify_initialized!(self, "translate");
[INFO] [stderr]     |         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 613 |         verify_initialized!(self, "pbrt.rotate");
[INFO] [stderr]     |         ----------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 619 |         verify_initialized!(self, "pbrt.look_at");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 643 |         verify_initialized!(self, "pbrt.scale");
[INFO] [stderr]     |         ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 649 |         verify_initialized!(self, "pbrt.concat_transform");
[INFO] [stderr]     |         --------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 655 |         verify_initialized!(self, "pbrt.transform");
[INFO] [stderr]     |         -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 661 |         verify_initialized!(self, "pbrt.coordinate_system");
[INFO] [stderr]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 668 |         verify_initialized!(self, "pbrt.coordinate_system_transform");
[INFO] [stderr]     |         -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 692 |         verify_options!(self, "pbrt.tranform_times");
[INFO] [stderr]     |         --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 692 |         verify_options!(self, "pbrt.tranform_times");
[INFO] [stderr]     |         --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 699 |         verify_options!(self, "pbrt.pixel_filter");
[INFO] [stderr]     |         ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 699 |         verify_options!(self, "pbrt.pixel_filter");
[INFO] [stderr]     |         ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 706 |         verify_options!(self, "pbrt.film");
[INFO] [stderr]     |         ----------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 706 |         verify_options!(self, "pbrt.film");
[INFO] [stderr]     |         ----------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 713 |         verify_options!(self, "pbrt.sampler");
[INFO] [stderr]     |         -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 713 |         verify_options!(self, "pbrt.sampler");
[INFO] [stderr]     |         -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 720 |         verify_options!(self, "pbrt.accelerator");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 720 |         verify_options!(self, "pbrt.accelerator");
[INFO] [stderr]     |         ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 727 |         verify_options!(self, "pbrt.integrator");
[INFO] [stderr]     |         ----------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 727 |         verify_options!(self, "pbrt.integrator");
[INFO] [stderr]     |         ----------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 734 |         verify_options!(self, "pbrt.camera");
[INFO] [stderr]     |         ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:215:34
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 734 |         verify_options!(self, "pbrt.camera");
[INFO] [stderr]     |         ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_options` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 215 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 744 |         verify_initialized!(self, "pbrt.make_named_medium");
[INFO] [stderr]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/api.rs:199:34
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, msg);
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 754 |         verify_initialized!(self, "pbrt.medium_interface");
[INFO] [stderr]     |         --------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `verify_initialized` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 199 |             debug_assert!(false, "{}", msg);
[INFO] [stderr]     |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/core/parser.rs:263:21
[INFO] [stderr]     |
[INFO] [stderr] 263 |           _ => panic!(format!(
[INFO] [stderr]     |  _____________________^
[INFO] [stderr] 264 | |             "unhandled param_set_item {:?}",
[INFO] [stderr] 265 | |             str::from_utf8(psi_type).unwrap()
[INFO] [stderr] 266 | |         )),
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 263 |         _ => panic!(
[INFO] [stderr] 264 |             "unhandled param_set_item {:?}",
[INFO] [stderr] 265 |             str::from_utf8(psi_type).unwrap()
[INFO] [stderr] 266 |         ),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 41 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pbrt-34e6731d226f6814)
[INFO] [stdout] 
[INFO] [stdout] running 35 tests
[INFO] [stdout] test core::api::tests::test_attribute_begin_end ... ok
[INFO] [stdout] test core::api::tests::test_make_filter ... ok
[INFO] [stdout] test core::api::tests::test_named_coordinate_systems ... ok
[INFO] [stdout] test core::api::tests::test_texture ... ok
[INFO] [stdout] test core::api::tests::test_transform_begin_end ... ok
[INFO] [stdout] test core::api::tests::test_transform_set ... ok
[INFO] [stdout] test core::paramset::tests::test_param_set ... ok
[INFO] [stdout] test core::paramset::tests::test_param_set_find ... ok
[INFO] [stdout] test core::parser::tests::test_film ... ok
[INFO] [stdout] test core::film::test::merge_film_tile ... ok
[INFO] [stdout] test core::parser::tests::test_light_source ... ok
[INFO] [stdout] test core::parser::tests::test_attribute ... ok
[INFO] [stdout] test core::parser::tests::test_material ... ok
[INFO] [stdout] test core::parser::tests::test_camera ... ok
[INFO] [stdout] test core::parser::tests::test_integrator ... ok
[INFO] [stdout] test core::parser::tests::test_number ... ok
[INFO] [stdout] test core::parser::tests::test_param_set_item_integer ... ok
[INFO] [stdout] test core::parser::tests::test_param_set_item_bool ... ok
[INFO] [stdout] test core::parser::tests::test_param_set_item_float ... ok
[INFO] [stdout] test core::parser::tests::test_param_set_item_multi ... ok
[INFO] [stdout] test core::parser::tests::test_look_at ... ok
[INFO] [stdout] test core::parser::tests::test_param_set_item_values_integer ... ok
[INFO] [stdout] test core::parser::tests::test_number_comment_number ... ok
[INFO] [stdout] test core::parser::tests::test_param_set_item_values_float ... ok
[INFO] [stdout] test core::parser::tests::test_param_set_item_values_string ... ok
[INFO] [stdout] test core::parser::tests::test_param_set_item_values_texture ... ok
[INFO] [stdout] test core::parser::tests::test_param_set_item_values_point ... ok
[INFO] [stdout] test core::parser::tests::test_scale ... ok
[INFO] [stdout] test core::parser::tests::test_rotate ... ok
[INFO] [stdout] test core::parser::tests::test_translate ... ok
[INFO] [stdout] test core::parser::tests::test_sampler ... ok
[INFO] [stdout] test core::parser::tests::test_shape ... ok
[INFO] [stdout] test core::parser::tests::test_parse_scene ... ok
[INFO] [stdout] test core::parser::tests::test_strip_comment ... ok
[INFO] [stdout] test core::film::test::merge_film_tile_rainbow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pbrt-6d7d3560fca4f428)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration.rs (/opt/rustwide/target/debug/deps/integration-dcead50b917aeca9)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test core::error::test_severe - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/textures.rs (/opt/rustwide/target/debug/deps/textures-684e052e66315c68)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_constant_float_texture_default ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pbrt
[INFO] [stdout] 
[INFO] [stdout] running 89 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name pbrt --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern image=/opt/rustwide/target/debug/deps/libimage-9350004833e77afa.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-1acff040ad67833f.rlib --extern nom=/opt/rustwide/target/debug/deps/libnom-3d31dc4c915550b0.rlib --extern pbrt=/opt/rustwide/target/debug/deps/libpbrt-930c190483eec503.rlib --extern pretty_assertions=/opt/rustwide/target/debug/deps/libpretty_assertions-029d04fc19f2e4d8.rlib --extern rayon=/opt/rustwide/target/debug/deps/librayon-56c59c343eff25ff.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-0a6e8811cd28785e.rlib --extern simplelog=/opt/rustwide/target/debug/deps/libsimplelog-62777d3b1ca0e9d3.rlib --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-e94d9e4410917a84.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "b1ae4610b755ac05c0092d27c93345f3ec24877e10630824a23a22e21081ea61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1ae4610b755ac05c0092d27c93345f3ec24877e10630824a23a22e21081ea61", kill_on_drop: false }`
[INFO] [stdout] b1ae4610b755ac05c0092d27c93345f3ec24877e10630824a23a22e21081ea61
