[INFO] fetching crate ansi-hex-color 0.1.1...
[INFO] checking ansi-hex-color-0.1.1 against master#b359ccf1b0b7b2d2c1c4932344b806e68bd053a9 for pr-105483
[INFO] extracting crate ansi-hex-color 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ansi-hex-color 0.1.1 on toolchain b359ccf1b0b7b2d2c1c4932344b806e68bd053a9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ansi-hex-color 0.1.1
[INFO] finished tweaking crates.io crate ansi-hex-color 0.1.1
[INFO] tweaked toml for crates.io crate ansi-hex-color 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate ansi-hex-color 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.4.6
[INFO] [stderr]   Downloaded num-integer v0.1.44
[INFO] [stderr]   Downloaded num-traits v0.1.43
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.22
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[INFO] [stderr]   Downloaded inflate v0.1.1
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[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded num-iter v0.1.42
[INFO] [stderr]   Downloaded png v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c87684c86be70f95bd077fa8369b4f5c3642dbb7a738f86c6f4df1097fb8b802
[INFO] running `Command { std: "docker" "start" "-a" "c87684c86be70f95bd077fa8369b4f5c3642dbb7a738f86c6f4df1097fb8b802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c87684c86be70f95bd077fa8369b4f5c3642dbb7a738f86c6f4df1097fb8b802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c87684c86be70f95bd077fa8369b4f5c3642dbb7a738f86c6f4df1097fb8b802", kill_on_drop: false }`
[INFO] [stdout] c87684c86be70f95bd077fa8369b4f5c3642dbb7a738f86c6f4df1097fb8b802
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTDOCFLAGS=--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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c123e9ec0f0e964a9d0653ae222a2c232275066d212d98cec2bcc17feab49f8b
[INFO] running `Command { std: "docker" "start" "-a" "c123e9ec0f0e964a9d0653ae222a2c232275066d212d98cec2bcc17feab49f8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking png v0.5.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]     Checking raster v0.2.0
[INFO] [stderr]     Checking ansi-hex-color v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/lib.rs:48:3
[INFO] [stdout]    |
[INFO] [stdout] 48 |         foreground_hex.to_lowercase();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/lib.rs:59:3
[INFO] [stdout]    |
[INFO] [stdout] 59 |         background_hex.to_lowercase();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/lib.rs:48:3
[INFO] [stdout]    |
[INFO] [stdout] 48 |         foreground_hex.to_lowercase();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `str::<impl str>::to_lowercase` that must be used
[INFO] [stdout]   --> src/lib.rs:59:3
[INFO] [stdout]    |
[INFO] [stdout] 59 |         background_hex.to_lowercase();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this returns the lowercase string as a new String, without modifying the original
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.54s
[INFO] running `Command { std: "docker" "inspect" "c123e9ec0f0e964a9d0653ae222a2c232275066d212d98cec2bcc17feab49f8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c123e9ec0f0e964a9d0653ae222a2c232275066d212d98cec2bcc17feab49f8b", kill_on_drop: false }`
[INFO] [stdout] c123e9ec0f0e964a9d0653ae222a2c232275066d212d98cec2bcc17feab49f8b