[INFO] fetching crate rust-color 0.1.0...
[INFO] testing rust-color-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rust-color 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rust-color 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-color 0.1.0
[INFO] finished tweaking crates.io crate rust-color 0.1.0
[INFO] tweaked toml for crates.io crate rust-color 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 022322e6a264c4b0b259b08f3e0c40c986e1f385ba52d236f36e04fccb78a9b7
[INFO] running `Command { std: "docker" "start" "-a" "022322e6a264c4b0b259b08f3e0c40c986e1f385ba52d236f36e04fccb78a9b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "022322e6a264c4b0b259b08f3e0c40c986e1f385ba52d236f36e04fccb78a9b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "022322e6a264c4b0b259b08f3e0c40c986e1f385ba52d236f36e04fccb78a9b7", kill_on_drop: false }`
[INFO] [stdout] 022322e6a264c4b0b259b08f3e0c40c986e1f385ba52d236f36e04fccb78a9b7
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03928d47d05c50d36972024e88b736cbc15c5b12ab434f4349f8bad2a1ae747b
[INFO] running `Command { std: "docker" "start" "-a" "03928d47d05c50d36972024e88b736cbc15c5b12ab434f4349f8bad2a1ae747b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-color v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/colors.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Display, Error};
[INFO] [stdout]   |                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]    --> src/colors.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         s = h;
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `error`
[INFO] [stdout]    --> src/colors.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout] 309 |     fn error(c: RgbaColorType, d: RgbaColorType) -> f64 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "03928d47d05c50d36972024e88b736cbc15c5b12ab434f4349f8bad2a1ae747b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03928d47d05c50d36972024e88b736cbc15c5b12ab434f4349f8bad2a1ae747b", kill_on_drop: false }`
[INFO] [stdout] 03928d47d05c50d36972024e88b736cbc15c5b12ab434f4349f8bad2a1ae747b
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ab0ef148570cb02d6337d25a0c4bc9af8192c4a010e14cf2d9298d44d2ef5d3
[INFO] running `Command { std: "docker" "start" "-a" "0ab0ef148570cb02d6337d25a0c4bc9af8192c4a010e14cf2d9298d44d2ef5d3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/colors.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Display, Error};
[INFO] [stdout]   |                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]    --> src/colors.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         s = h;
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `error`
[INFO] [stdout]    --> src/colors.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout] 309 |     fn error(c: RgbaColorType, d: RgbaColorType) -> f64 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust-color v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/colors.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Display, Error};
[INFO] [stdout]   |                         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]    --> src/colors.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         s = h;
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "0ab0ef148570cb02d6337d25a0c4bc9af8192c4a010e14cf2d9298d44d2ef5d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ab0ef148570cb02d6337d25a0c4bc9af8192c4a010e14cf2d9298d44d2ef5d3", kill_on_drop: false }`
[INFO] [stdout] 0ab0ef148570cb02d6337d25a0c4bc9af8192c4a010e14cf2d9298d44d2ef5d3
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 531472594d7e1373ca76daf91dd786df7d1de06c376da7e59a1780d54f09e040
[INFO] running `Command { std: "docker" "start" "-a" "531472594d7e1373ca76daf91dd786df7d1de06c376da7e59a1780d54f09e040", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/colors.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::{Display, Error};
[INFO] [stderr]   |                         ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]    --> src/colors.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         s = h;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `error`
[INFO] [stderr]    --> src/colors.rs:309:8
[INFO] [stderr]     |
[INFO] [stderr] 309 |     fn error(c: RgbaColorType, d: RgbaColorType) -> f64 {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-color` (lib) generated 3 warnings
[INFO] [stderr] warning: `rust-color` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_color-28cb58d376150c81)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test colors::tests::test_complement ... ok
[INFO] [stdout] test colors::tests::test_from_array ... ok
[INFO] [stdout] test colors::tests::test_conv ... ok
[INFO] [stdout] test colors::tests::test_into ... ok
[INFO] [stdout] test colors::tests::test_from_bytes ... ok
[INFO] [stdout] test colors::tests::test_new ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust-color
[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] running `Command { std: "docker" "inspect" "531472594d7e1373ca76daf91dd786df7d1de06c376da7e59a1780d54f09e040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531472594d7e1373ca76daf91dd786df7d1de06c376da7e59a1780d54f09e040", kill_on_drop: false }`
[INFO] [stdout] 531472594d7e1373ca76daf91dd786df7d1de06c376da7e59a1780d54f09e040