[INFO] cloning repository https://github.com/johantell/what_the_color
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johantell/what_the_color" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohantell%2Fwhat_the_color", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohantell%2Fwhat_the_color'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72496302b5c5468270c1177e12632f3a338bd04e
[INFO] checking johantell/what_the_color against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohantell%2Fwhat_the_color" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johantell/what_the_color 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/johantell/what_the_color
[INFO] finished tweaking git repo https://github.com/johantell/what_the_color
[INFO] tweaked toml for git repo https://github.com/johantell/what_the_color written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/johantell/what_the_color 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 4b08fd4116766c0cc908a2a5f3b0a14620ad357f059aa785cdb996b8d28b23f0
[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" "4b08fd4116766c0cc908a2a5f3b0a14620ad357f059aa785cdb996b8d28b23f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b08fd4116766c0cc908a2a5f3b0a14620ad357f059aa785cdb996b8d28b23f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b08fd4116766c0cc908a2a5f3b0a14620ad357f059aa785cdb996b8d28b23f0", kill_on_drop: false }`
[INFO] [stdout] 4b08fd4116766c0cc908a2a5f3b0a14620ad357f059aa785cdb996b8d28b23f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 2b390f12536d3a4578a80962992857bbba1aa0b9079cd1cc1b0e42b40fb767a4
[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" "2b390f12536d3a4578a80962992857bbba1aa0b9079cd1cc1b0e42b40fb767a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking what_the_color v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/color/rgb.rs:69:29
[INFO] [stdout]    |
[INFO] [stdout] 69 |         assert_eq!(from_hex("#00FF99"), RGB(0, 255, 153));
[INFO] [stdout]    |                             ^^^^^^^^^ expected `u8`, found `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/color/rgb.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         assert_eq!(from_hex("#00FF99"), RGB(0, 255, 153));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found struct `rgb::RGB`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `std::result::Result<u8, ()>`
[INFO] [stdout]             found struct `rgb::RGB`
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/color/rgb.rs:70:29
[INFO] [stdout]    |
[INFO] [stdout] 70 |         assert_eq!(from_hex("#000000"), RGB(0, 0, 0));
[INFO] [stdout]    |                             ^^^^^^^^^ expected `u8`, found `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/color/rgb.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         assert_eq!(from_hex("#000000"), RGB(0, 0, 0));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found struct `rgb::RGB`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `std::result::Result<u8, ()>`
[INFO] [stdout]             found struct `rgb::RGB`
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/color/rgb.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 |         assert_eq!(from_hex("#FFFFFF"), RGB(255, 255, 255));
[INFO] [stdout]    |                             ^^^^^^^^^ expected `u8`, found `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/color/rgb.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         assert_eq!(from_hex("#FFFFFF"), RGB(255, 255, 255));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found struct `rgb::RGB`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `std::result::Result<u8, ()>`
[INFO] [stdout]             found struct `rgb::RGB`
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `what_the_color`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "2b390f12536d3a4578a80962992857bbba1aa0b9079cd1cc1b0e42b40fb767a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b390f12536d3a4578a80962992857bbba1aa0b9079cd1cc1b0e42b40fb767a4", kill_on_drop: false }`
[INFO] [stdout] 2b390f12536d3a4578a80962992857bbba1aa0b9079cd1cc1b0e42b40fb767a4