[INFO] fetching crate spectral 0.6.0...
[INFO] checking spectral-0.6.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate spectral 0.6.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate spectral 0.6.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spectral 0.6.0
[INFO] finished tweaking crates.io crate spectral 0.6.0
[INFO] tweaked toml for crates.io crate spectral 0.6.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48c3a6906c8b3c1a96727f7c517f2915d4467781e293dbcb6e87e77875fb3062
[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" "48c3a6906c8b3c1a96727f7c517f2915d4467781e293dbcb6e87e77875fb3062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48c3a6906c8b3c1a96727f7c517f2915d4467781e293dbcb6e87e77875fb3062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48c3a6906c8b3c1a96727f7c517f2915d4467781e293dbcb6e87e77875fb3062", kill_on_drop: false }`
[INFO] [stdout] 48c3a6906c8b3c1a96727f7c517f2915d4467781e293dbcb6e87e77875fb3062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1a9943e338cfd7bccadf6ee437e946182d31dd6b3082b4740359177a706119f3
[INFO] running `Command { std: "docker" "start" "-a" "1a9943e338cfd7bccadf6ee437e946182d31dd6b3082b4740359177a706119f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking spectral v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:343:16
[INFO] [stdout]     |
[INFO] [stdout] 343 |           panic!(format!("{}{}\n\t{}expected: {}\n\t but was: {}{}\n{}",
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 344 | |                        description,
[INFO] [stdout] 345 | |                        subject_name,
[INFO] [stdout] 346 | |                        TERM_RED,
[INFO] [stdout] ...   |
[INFO] [stdout] 349 | |                        TERM_RESET,
[INFO] [stdout] 350 | |                        location))
[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] 343 |         panic!("{}{}\n\t{}expected: {}\n\t but was: {}{}\n{}",
[INFO] [stdout] 344 |                        description,
[INFO] [stdout] 345 |                        subject_name,
[INFO] [stdout] 346 |                        TERM_RED,
[INFO] [stdout] 347 |                        self.expected.clone().unwrap(),
[INFO] [stdout] 348 |                        self.actual.clone().unwrap(),
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:360:16
[INFO] [stdout]     |
[INFO] [stdout] 360 |           panic!(format!("{}{}\n\t{}{}{}\n{}",
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 361 | |                        description,
[INFO] [stdout] 362 | |                        subject_name,
[INFO] [stdout] 363 | |                        TERM_RED,
[INFO] [stdout] 364 | |                        message,
[INFO] [stdout] 365 | |                        TERM_RESET,
[INFO] [stdout] 366 | |                        location))
[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] 360 |         panic!("{}{}\n\t{}{}{}\n{}",
[INFO] [stdout] 361 |                        description,
[INFO] [stdout] 362 |                        subject_name,
[INFO] [stdout] 363 |                        TERM_RED,
[INFO] [stdout] 364 |                        message,
[INFO] [stdout] 365 |                        TERM_RESET,
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:343:16
[INFO] [stdout]     |
[INFO] [stdout] 343 |           panic!(format!("{}{}\n\t{}expected: {}\n\t but was: {}{}\n{}",
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 344 | |                        description,
[INFO] [stdout] 345 | |                        subject_name,
[INFO] [stdout] 346 | |                        TERM_RED,
[INFO] [stdout] ...   |
[INFO] [stdout] 349 | |                        TERM_RESET,
[INFO] [stdout] 350 | |                        location))
[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] 343 |         panic!("{}{}\n\t{}expected: {}\n\t but was: {}{}\n{}",
[INFO] [stdout] 344 |                        description,
[INFO] [stdout] 345 |                        subject_name,
[INFO] [stdout] 346 |                        TERM_RED,
[INFO] [stdout] 347 |                        self.expected.clone().unwrap(),
[INFO] [stdout] 348 |                        self.actual.clone().unwrap(),
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:360:16
[INFO] [stdout]     |
[INFO] [stdout] 360 |           panic!(format!("{}{}\n\t{}{}{}\n{}",
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 361 | |                        description,
[INFO] [stdout] 362 | |                        subject_name,
[INFO] [stdout] 363 | |                        TERM_RED,
[INFO] [stdout] 364 | |                        message,
[INFO] [stdout] 365 | |                        TERM_RESET,
[INFO] [stdout] 366 | |                        location))
[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] 360 |         panic!("{}{}\n\t{}{}{}\n{}",
[INFO] [stdout] 361 |                        description,
[INFO] [stdout] 362 |                        subject_name,
[INFO] [stdout] 363 |                        TERM_RED,
[INFO] [stdout] 364 |                        message,
[INFO] [stdout] 365 |                        TERM_RESET,
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.69s
[INFO] running `Command { std: "docker" "inspect" "1a9943e338cfd7bccadf6ee437e946182d31dd6b3082b4740359177a706119f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a9943e338cfd7bccadf6ee437e946182d31dd6b3082b4740359177a706119f3", kill_on_drop: false }`
[INFO] [stdout] 1a9943e338cfd7bccadf6ee437e946182d31dd6b3082b4740359177a706119f3