[INFO] cloning repository https://github.com/FelixRilling/colo.rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FelixRilling/colo.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixRilling%2Fcolo.rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixRilling%2Fcolo.rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5e43daa10e910b34f7a5b666ec8cad09fcc7f41b [INFO] checking FelixRilling/colo.rs against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixRilling%2Fcolo.rs" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/FelixRilling/colo.rs on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/FelixRilling/colo.rs [INFO] finished tweaking git repo https://github.com/FelixRilling/colo.rs [INFO] tweaked toml for git repo https://github.com/FelixRilling/colo.rs written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/FelixRilling/colo.rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", 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] 13738840f642d8f96e25e793ce4b5852fa009f00cbd575265480f7a454ebf016 [INFO] running `Command { std: "docker" "start" "-a" "13738840f642d8f96e25e793ce4b5852fa009f00cbd575265480f7a454ebf016", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "13738840f642d8f96e25e793ce4b5852fa009f00cbd575265480f7a454ebf016", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "13738840f642d8f96e25e793ce4b5852fa009f00cbd575265480f7a454ebf016", kill_on_drop: false }` [INFO] [stdout] 13738840f642d8f96e25e793ce4b5852fa009f00cbd575265480f7a454ebf016 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0b2273167a7a7e45bfa3159f401fb3a0c23e2df5d38e0b829f05862ee854c11e [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" "0b2273167a7a7e45bfa3159f401fb3a0c23e2df5d38e0b829f05862ee854c11e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Checking regex-syntax v0.6.24 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking regex v1.5.2 [INFO] [stderr] Checking colo_rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant is never constructed: `AAA` [INFO] [stdout] --> src/core/contrast.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | AAA, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `LargeAAA` [INFO] [stdout] --> src/core/contrast.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | LargeAAA, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `AA` [INFO] [stdout] --> src/core/contrast.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | AA, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `LargeAA` [INFO] [stdout] --> src/core/contrast.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | LargeAA, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `contrast_ratio_targets_reached` [INFO] [stdout] --> src/core/contrast.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn contrast_ratio_targets_reached(color_1: &RGB, color_2: &RGB) -> HashSet { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | / stdout.set_color(ColorSpec::new() [INFO] [stdout] 35 | | .set_bg(Some(rgb_as_term_color(color))) [INFO] [stdout] 36 | | .set_fg(Some(rgb_as_term_color(foreground_color)))); [INFO] [stdout] | |____________________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | write!(stdout, "{}", color); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | stdout.set_color(&ColorSpec::default()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | write!(&mut stdout, "WCAG 2.0 contrast ratio for "); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | write!(&mut stdout, " to "); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | writeln!(&mut stdout, " is {}. ", contrast); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | / stdout.set_color(ColorSpec::new() [INFO] [stdout] 35 | | .set_bg(Some(rgb_as_term_color(color))) [INFO] [stdout] 36 | | .set_fg(Some(rgb_as_term_color(foreground_color)))); [INFO] [stdout] | |____________________________________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | write!(stdout, "{}", color); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | stdout.set_color(&ColorSpec::default()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | write!(&mut stdout, "WCAG 2.0 contrast ratio for "); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | write!(&mut stdout, " to "); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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: unused `Result` that must be used [INFO] [stdout] --> src/cli.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | writeln!(&mut stdout, " is {}. ", contrast); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [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: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 13.36s [INFO] running `Command { std: "docker" "inspect" "0b2273167a7a7e45bfa3159f401fb3a0c23e2df5d38e0b829f05862ee854c11e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b2273167a7a7e45bfa3159f401fb3a0c23e2df5d38e0b829f05862ee854c11e", kill_on_drop: false }` [INFO] [stdout] 0b2273167a7a7e45bfa3159f401fb3a0c23e2df5d38e0b829f05862ee854c11e