[INFO] fetching crate duplicate 0.2.9...
[INFO] building duplicate-0.2.9 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate duplicate 0.2.9 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate duplicate 0.2.9 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate duplicate 0.2.9
[INFO] finished tweaking crates.io crate duplicate 0.2.9
[INFO] tweaked toml for crates.io crate duplicate 0.2.9 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macrotest v1.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2374390590fb0a24fda74332f1e62dff847351620d33437209fea1fa00b70bf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f2374390590fb0a24fda74332f1e62dff847351620d33437209fea1fa00b70bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2374390590fb0a24fda74332f1e62dff847351620d33437209fea1fa00b70bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2374390590fb0a24fda74332f1e62dff847351620d33437209fea1fa00b70bf", kill_on_drop: false }`
[INFO] [stdout] f2374390590fb0a24fda74332f1e62dff847351620d33437209fea1fa00b70bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23da905bb2d53936b9f3f1e2626d89c56f67ee23ca0ec4890fa944248822cfaf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "23da905bb2d53936b9f3f1e2626d89c56f67ee23ca0ec4890fa944248822cfaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling duplicate v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/substitute.rs:234:14
[INFO] [stdout]     |
[INFO] [stdout] 234 |                           panic!(format!(
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 235 | |                             "Substitution identifier '{}' takes {} arguments but was supplied \
[INFO] [stdout] 236 | |                              with none.",
[INFO] [stdout] 237 | |                             ident.to_string(),
[INFO] [stdout] 238 | |                             subst.arg_count
[INFO] [stdout] 239 | |                         ))
[INFO] [stdout]     | |_________________________^
[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: 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] 234 |                         panic!(
[INFO] [stdout] 235 |                             "Substitution identifier '{}' takes {} arguments but was supplied \
[INFO] [stdout] 236 |                              with none.",
[INFO] [stdout] 237 |                             ident.to_string(),
[INFO] [stdout] 238 |                             subst.arg_count
[INFO] [stdout] 239 |                         )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.06s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "23da905bb2d53936b9f3f1e2626d89c56f67ee23ca0ec4890fa944248822cfaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23da905bb2d53936b9f3f1e2626d89c56f67ee23ca0ec4890fa944248822cfaf", kill_on_drop: false }`
[INFO] [stdout] 23da905bb2d53936b9f3f1e2626d89c56f67ee23ca0ec4890fa944248822cfaf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc038ca76d2e176536ef3d4ea10f81421d05b15ab916c80a30f5c7b3c3956ca4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fc038ca76d2e176536ef3d4ea10f81421d05b15ab916c80a30f5c7b3c3956ca4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/substitute.rs:234:14
[INFO] [stdout]     |
[INFO] [stdout] 234 |                           panic!(format!(
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 235 | |                             "Substitution identifier '{}' takes {} arguments but was supplied \
[INFO] [stdout] 236 | |                              with none.",
[INFO] [stdout] 237 | |                             ident.to_string(),
[INFO] [stdout] 238 | |                             subst.arg_count
[INFO] [stdout] 239 | |                         ))
[INFO] [stdout]     | |_________________________^
[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: 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] 234 |                         panic!(
[INFO] [stdout] 235 |                             "Substitution identifier '{}' takes {} arguments but was supplied \
[INFO] [stdout] 236 |                              with none.",
[INFO] [stdout] 237 |                             ident.to_string(),
[INFO] [stdout] 238 |                             subst.arg_count
[INFO] [stdout] 239 |                         )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling macrotest v1.0.5
[INFO] [stderr]    Compiling duplicate v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/default_features/mod.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 assert!(IS_DEFAULT, format!("Feature '{}' is not enabled by default.", $feature_string));
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 | default_features!(pretty_errors "pretty_errors");
[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: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 assert!(IS_DEFAULT, "Feature '{}' is not enabled by default.", $feature_string);
[INFO] [stdout]    |                                    --                                                        --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/default_features/mod.rs:35:25
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 assert!(IS_DEFAULT, format!("Feature '{}' is not enabled by default.", $feature_string));
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 | default_features!(module_disambiguation "module_disambiguation");
[INFO] [stdout]    | ----------------------------------------------------------------- in this macro invocation
[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]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 assert!(IS_DEFAULT, "Feature '{}' is not enabled by default.", $feature_string);
[INFO] [stdout]    |                                    --                                                        --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/utils.rs:107:14
[INFO] [stdout]     |
[INFO] [stdout] 107 |                         panic!(format!("Error accessing source file: {:?}", file))
[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] 107 |                         panic!("Error accessing source file: {:?}", file)
[INFO] [stdout]     |                               --                                       --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/utils.rs:107:14
[INFO] [stdout]     |
[INFO] [stdout] 107 |                         panic!(format!("Error accessing source file: {:?}", file))
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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: 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] 107 |                         panic!("Error accessing source file: {:?}", file)
[INFO] [stdout]     |                               --                                       --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/substitute.rs:234:14
[INFO] [stdout]     |
[INFO] [stdout] 234 |                           panic!(format!(
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 235 | |                             "Substitution identifier '{}' takes {} arguments but was supplied \
[INFO] [stdout] 236 | |                              with none.",
[INFO] [stdout] 237 | |                             ident.to_string(),
[INFO] [stdout] 238 | |                             subst.arg_count
[INFO] [stdout] 239 | |                         ))
[INFO] [stdout]     | |_________________________^
[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: 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] 234 |                         panic!(
[INFO] [stdout] 235 |                             "Substitution identifier '{}' takes {} arguments but was supplied \
[INFO] [stdout] 236 |                              with none.",
[INFO] [stdout] 237 |                             ident.to_string(),
[INFO] [stdout] 238 |                             subst.arg_count
[INFO] [stdout] 239 |                         )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 21.19s
[INFO] running `Command { std: "docker" "inspect" "fc038ca76d2e176536ef3d4ea10f81421d05b15ab916c80a30f5c7b3c3956ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc038ca76d2e176536ef3d4ea10f81421d05b15ab916c80a30f5c7b3c3956ca4", kill_on_drop: false }`
[INFO] [stdout] fc038ca76d2e176536ef3d4ea10f81421d05b15ab916c80a30f5c7b3c3956ca4
