[INFO] cloning repository https://github.com/hayapo/Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hayapo/Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhayapo%2FRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhayapo%2FRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ad9324dfd81b69999f7efda8f3cff8c964827da
[INFO] checking hayapo/Rust against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhayapo%2FRust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hayapo/Rust on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hayapo/Rust
[INFO] finished tweaking git repo https://github.com/hayapo/Rust
[INFO] tweaked toml for git repo https://github.com/hayapo/Rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/hayapo/Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74769c1beb1db653588cc57cb230c6a2d39e168406020f787617792600c4b787
[INFO] running `Command { std: "docker" "start" "-a" "74769c1beb1db653588cc57cb230c6a2d39e168406020f787617792600c4b787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74769c1beb1db653588cc57cb230c6a2d39e168406020f787617792600c4b787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74769c1beb1db653588cc57cb230c6a2d39e168406020f787617792600c4b787", kill_on_drop: false }`
[INFO] [stdout] 74769c1beb1db653588cc57cb230c6a2d39e168406020f787617792600c4b787
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99a6c769f5d703dc92fbfb0fb0934bf24b50086225c8f87b6bab7863a09f0cd9
[INFO] running `Command { std: "docker" "start" "-a" "99a6c769f5d703dc92fbfb0fb0934bf24b50086225c8f87b6bab7863a09f0cd9", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.66
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking Rust_Learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Coin`
[INFO] [stdout]  --> src/bin/match.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Coin {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `value_in_cents`
[INFO] [stdout]  --> src/bin/match.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn value_in_cents(coin: Coin) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]  --> src/bin/slice.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let word = first_word(&my_string[..]);
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]  --> src/bin/slice.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let word = first_word(&my_string_literal[..]);
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]  --> src/bin/slice.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let word = first_word(&my_string[..]);
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]  --> src/bin/slice.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let word = first_word(&my_string_literal[..]);
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `match`
[INFO] [stdout]   --> src/bin/match.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / enum Coin {
[INFO] [stdout] 2  | |     Penny,
[INFO] [stdout] 3  | |     Nickel,
[INFO] [stdout] 4  | |     Dime,
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     }
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^ consider adding a `main` function to `src/bin/match.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Rust_Learning`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "99a6c769f5d703dc92fbfb0fb0934bf24b50086225c8f87b6bab7863a09f0cd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99a6c769f5d703dc92fbfb0fb0934bf24b50086225c8f87b6bab7863a09f0cd9", kill_on_drop: false }`
[INFO] [stdout] 99a6c769f5d703dc92fbfb0fb0934bf24b50086225c8f87b6bab7863a09f0cd9