[INFO] cloning repository https://github.com/jarhill0/rusty_euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jarhill0/rusty_euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjarhill0%2Frusty_euler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjarhill0%2Frusty_euler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f45512de86ad26810dacf1e1d5059bbf6f1826f5
[INFO] checking jarhill0/rusty_euler against try#cde356bd79f103d9897ada6234862d1d3e511791 for pr-114586
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjarhill0%2Frusty_euler" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jarhill0/rusty_euler on toolchain cde356bd79f103d9897ada6234862d1d3e511791
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cde356bd79f103d9897ada6234862d1d3e511791" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jarhill0/rusty_euler
[INFO] finished tweaking git repo https://github.com/jarhill0/rusty_euler
[INFO] tweaked toml for git repo https://github.com/jarhill0/rusty_euler written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jarhill0/rusty_euler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cde356bd79f103d9897ada6234862d1d3e511791" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+cde356bd79f103d9897ada6234862d1d3e511791" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9146dfbb08edc376bffb8be16d37ccc5d1021d907e2180e2a89544a1f6bf1d4a
[INFO] running `Command { std: "docker" "start" "-a" "9146dfbb08edc376bffb8be16d37ccc5d1021d907e2180e2a89544a1f6bf1d4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9146dfbb08edc376bffb8be16d37ccc5d1021d907e2180e2a89544a1f6bf1d4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9146dfbb08edc376bffb8be16d37ccc5d1021d907e2180e2a89544a1f6bf1d4a", kill_on_drop: false }`
[INFO] [stdout] 9146dfbb08edc376bffb8be16d37ccc5d1021d907e2180e2a89544a1f6bf1d4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+cde356bd79f103d9897ada6234862d1d3e511791" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70fcfe243a299e8961ae127c2a912073926db3c42d32f073785bb64c2074ec32
[INFO] running `Command { std: "docker" "start" "-a" "70fcfe243a299e8961ae127c2a912073926db3c42d32f073785bb64c2074ec32", kill_on_drop: false }`
[INFO] [stderr]     Checking rusty_euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/interface/mod.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |     F: Fn() -> (u32),
[INFO] [stdout]    |                ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -     F: Fn() -> (u32),
[INFO] [stdout] 61 +     F: Fn() -> u32,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/interface/mod.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |     F: Fn() -> (u32),
[INFO] [stdout]    |                ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -     F: Fn() -> (u32),
[INFO] [stdout] 61 +     F: Fn() -> u32,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty_euler` (bin "rusty_euler"); 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rusty_euler` (bin "rusty_euler" test); 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "70fcfe243a299e8961ae127c2a912073926db3c42d32f073785bb64c2074ec32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70fcfe243a299e8961ae127c2a912073926db3c42d32f073785bb64c2074ec32", kill_on_drop: false }`
[INFO] [stdout] 70fcfe243a299e8961ae127c2a912073926db3c42d32f073785bb64c2074ec32