[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 try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohantell%2Fwhat_the_color" "/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/johantell/what_the_color on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "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-0/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded exitfailure v0.5.1
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "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] 05544ef4041c731eca5a68f8dd025646af87d9e98cabd5b9e8ec080eb4a42cf4
[INFO] running `Command { std: "docker" "start" "-a" "05544ef4041c731eca5a68f8dd025646af87d9e98cabd5b9e8ec080eb4a42cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05544ef4041c731eca5a68f8dd025646af87d9e98cabd5b9e8ec080eb4a42cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05544ef4041c731eca5a68f8dd025646af87d9e98cabd5b9e8ec080eb4a42cf4", kill_on_drop: false }`
[INFO] [stdout] 05544ef4041c731eca5a68f8dd025646af87d9e98cabd5b9e8ec080eb4a42cf4
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c5171ab549a2e8cc065ddad913f7760e0cd9db15f19b0e854b33f270755618d
[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" "6c5171ab549a2e8cc065ddad913f7760e0cd9db15f19b0e854b33f270755618d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling quote v1.0.7
[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 `color::rgb::RGB`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `std::result::Result<u8, ()>`
[INFO] [stdout]             found struct `color::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 `color::rgb::RGB`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `std::result::Result<u8, ()>`
[INFO] [stdout]             found struct `color::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 `color::rgb::RGB`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `std::result::Result<u8, ()>`
[INFO] [stdout]             found struct `color::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" "6c5171ab549a2e8cc065ddad913f7760e0cd9db15f19b0e854b33f270755618d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c5171ab549a2e8cc065ddad913f7760e0cd9db15f19b0e854b33f270755618d", kill_on_drop: false }`
[INFO] [stdout] 6c5171ab549a2e8cc065ddad913f7760e0cd9db15f19b0e854b33f270755618d