[INFO] cloning repository https://github.com/cheshyre/project-euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cheshyre/project-euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheshyre%2Fproject-euler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheshyre%2Fproject-euler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b74c3b59f7c6e7c6d71f76a787c652a0c5a079b
[INFO] checking cheshyre/project-euler against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheshyre%2Fproject-euler" "/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/cheshyre/project-euler on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cheshyre/project-euler
[INFO] finished tweaking git repo https://github.com/cheshyre/project-euler
[INFO] tweaked toml for git repo https://github.com/cheshyre/project-euler written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/cheshyre/project-euler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "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] b5ac8f278126403fd90b64e590ad20c80e16d8daf974624d88a37bcd622e10f9
[INFO] running `Command { std: "docker" "start" "-a" "b5ac8f278126403fd90b64e590ad20c80e16d8daf974624d88a37bcd622e10f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5ac8f278126403fd90b64e590ad20c80e16d8daf974624d88a37bcd622e10f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5ac8f278126403fd90b64e590ad20c80e16d8daf974624d88a37bcd622e10f9", kill_on_drop: false }`
[INFO] [stdout] b5ac8f278126403fd90b64e590ad20c80e16d8daf974624d88a37bcd622e10f9
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9629be1240bf96d0287101d0ed623b89a64a288126c7f41f3f37fbe4a865b85
[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" "a9629be1240bf96d0287101d0ed623b89a64a288126c7f41f3f37fbe4a865b85", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.30
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking project_euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `break_again`
[INFO] [stdout]  --> src/bin/p00004.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut break_again = false;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_break_again`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/p00004.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut break_again = false;
[INFO] [stdout]   |         ----^^^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `break_again`
[INFO] [stdout]  --> src/bin/p00004.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut break_again = false;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_break_again`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/p00004.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut break_again = false;
[INFO] [stdout]   |         ----^^^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "a9629be1240bf96d0287101d0ed623b89a64a288126c7f41f3f37fbe4a865b85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9629be1240bf96d0287101d0ed623b89a64a288126c7f41f3f37fbe4a865b85", kill_on_drop: false }`
[INFO] [stdout] a9629be1240bf96d0287101d0ed623b89a64a288126c7f41f3f37fbe4a865b85