[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] e0292094a16399dc947a3460fec1b590aa68d481
[INFO] checking FelixRilling/colo.rs against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixRilling%2Fcolo.rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FelixRilling/colo.rs on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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-3/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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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] a647d4083e596668d665cb0551946c5c8e7b2b3e40e41aeba591314430ef3210
[INFO] running `Command { std: "docker" "start" "-a" "a647d4083e596668d665cb0551946c5c8e7b2b3e40e41aeba591314430ef3210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a647d4083e596668d665cb0551946c5c8e7b2b3e40e41aeba591314430ef3210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a647d4083e596668d665cb0551946c5c8e7b2b3e40e41aeba591314430ef3210", kill_on_drop: false }`
[INFO] [stdout] a647d4083e596668d665cb0551946c5c8e7b2b3e40e41aeba591314430ef3210
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a67c7f14e8e8f799c55e0c6e891b0e21f8106a8b2f796f56e3c14c344dd0c1a4
[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" "a67c7f14e8e8f799c55e0c6e891b0e21f8106a8b2f796f56e3c14c344dd0c1a4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling num-traits v0.2.14
[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 colo_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `RGB` in the current scope
[INFO] [stdout]    --> src/bin/colo_rs.rs:115:33
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let bright_color = RGB::from_str("#ABCDEF").unwrap();
[INFO] [stdout]     |                                 ^^^^^^^^ function or associated item not found in `RGB`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `RGB` in the current scope
[INFO] [stdout]    --> src/bin/colo_rs.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let dark_color = RGB::from_str("#696969").unwrap();
[INFO] [stdout]     |                               ^^^^^^^^ function or associated item not found in `RGB`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]    --> src/bin/colo_rs.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use std::str::FromStr;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `colo_rs`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a67c7f14e8e8f799c55e0c6e891b0e21f8106a8b2f796f56e3c14c344dd0c1a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a67c7f14e8e8f799c55e0c6e891b0e21f8106a8b2f796f56e3c14c344dd0c1a4", kill_on_drop: false }`
[INFO] [stdout] a67c7f14e8e8f799c55e0c6e891b0e21f8106a8b2f796f56e3c14c344dd0c1a4