[INFO] fetching crate spectral 0.6.0...
[INFO] checking spectral-0.6.0 against master#3e826bb11228508fbe749e594038d6727208aa94 for pr-82322
[INFO] extracting crate spectral 0.6.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate spectral 0.6.0 on toolchain 3e826bb11228508fbe749e594038d6727208aa94
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9053a735a80e81d8c96af63a4f1b03f811f5ef3bcd6852ba8d2ead376b2b1052
[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" "9053a735a80e81d8c96af63a4f1b03f811f5ef3bcd6852ba8d2ead376b2b1052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9053a735a80e81d8c96af63a4f1b03f811f5ef3bcd6852ba8d2ead376b2b1052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9053a735a80e81d8c96af63a4f1b03f811f5ef3bcd6852ba8d2ead376b2b1052", kill_on_drop: false }`
[INFO] [stdout] 9053a735a80e81d8c96af63a4f1b03f811f5ef3bcd6852ba8d2ead376b2b1052
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 137004b175ed762a534e2edd4c559f07f1d8b4a410464cee665c192722eb4719
[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" "137004b175ed762a534e2edd4c559f07f1d8b4a410464cee665c192722eb4719", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.87
[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-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[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: this warning originates in a macro (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/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: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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: this warning originates in a macro (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/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: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.64s
[INFO] running `Command { std: "docker" "inspect" "137004b175ed762a534e2edd4c559f07f1d8b4a410464cee665c192722eb4719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "137004b175ed762a534e2edd4c559f07f1d8b4a410464cee665c192722eb4719", kill_on_drop: false }`
[INFO] [stdout] 137004b175ed762a534e2edd4c559f07f1d8b4a410464cee665c192722eb4719