[INFO] cloning repository https://github.com/jmageau/colors-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmageau/colors-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmageau%2Fcolors-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmageau%2Fcolors-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd6f7667e6f510ce613409be9020e1ce320cf234
[INFO] checking jmageau/colors-rs against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmageau%2Fcolors-rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jmageau/colors-rs on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jmageau/colors-rs
[INFO] finished tweaking git repo https://github.com/jmageau/colors-rs
[INFO] tweaked toml for git repo https://github.com/jmageau/colors-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/jmageau/colors-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49cb0983be0ef6defb417ee20a12c001b6aa2f5eaec66224e7306c45436ef723
[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" "49cb0983be0ef6defb417ee20a12c001b6aa2f5eaec66224e7306c45436ef723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49cb0983be0ef6defb417ee20a12c001b6aa2f5eaec66224e7306c45436ef723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49cb0983be0ef6defb417ee20a12c001b6aa2f5eaec66224e7306c45436ef723", kill_on_drop: false }`
[INFO] [stdout] 49cb0983be0ef6defb417ee20a12c001b6aa2f5eaec66224e7306c45436ef723
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c4ddf2b492813c8d8ad9993b555ee3cc73d53b274cf26f71406d9cdf1cc3275
[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" "7c4ddf2b492813c8d8ad9993b555ee3cc73d53b274cf26f71406d9cdf1cc3275", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.10
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking console v0.8.0
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking image v0.22.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking colors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `delta_e`
[INFO] [stdout]   --> src/color_functions.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn delta_e(color1: &Color, color2: &Color) -> f64 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `delta_e`
[INFO] [stdout]   --> src/color_functions.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn delta_e(color1: &Color, color2: &Color) -> f64 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.26s
[INFO] running `Command { std: "docker" "inspect" "7c4ddf2b492813c8d8ad9993b555ee3cc73d53b274cf26f71406d9cdf1cc3275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c4ddf2b492813c8d8ad9993b555ee3cc73d53b274cf26f71406d9cdf1cc3275", kill_on_drop: false }`
[INFO] [stdout] 7c4ddf2b492813c8d8ad9993b555ee3cc73d53b274cf26f71406d9cdf1cc3275