[INFO] cloning repository https://github.com/mufassa8/start-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mufassa8/start-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmufassa8%2Fstart-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmufassa8%2Fstart-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa2849f557e70af01b5429561ca9456d76bb7389
[INFO] checking mufassa8/start-rust against try#afeffcd090fe6cee35c99f8b5539d74aa443fe34 for pr-140956
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmufassa8%2Fstart-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mufassa8/start-rust
[INFO] finished tweaking git repo https://github.com/mufassa8/start-rust
[INFO] tweaked toml for git repo https://github.com/mufassa8/start-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mufassa8/start-rust on toolchain afeffcd090fe6cee35c99f8b5539d74aa443fe34
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mufassa8/start-rust 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" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7d9de2eb3c721d6f6985486b76277172c6fb3503829917ff6d187b776778a5d
[INFO] running `Command { std: "docker" "start" "-a" "b7d9de2eb3c721d6f6985486b76277172c6fb3503829917ff6d187b776778a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7d9de2eb3c721d6f6985486b76277172c6fb3503829917ff6d187b776778a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7d9de2eb3c721d6f6985486b76277172c6fb3503829917ff6d187b776778a5d", kill_on_drop: false }`
[INFO] [stdout] b7d9de2eb3c721d6f6985486b76277172c6fb3503829917ff6d187b776778a5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7227ad7dd2d659f6ae30e5a145be2c32c72560be614fee0a445b259609c58ef9
[INFO] running `Command { std: "docker" "start" "-a" "7227ad7dd2d659f6ae30e5a145be2c32c72560be614fee0a445b259609c58ef9", kill_on_drop: false }`
[INFO] [stderr]     Checking start-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]  --> pointer_ref.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let arr2 = arr1;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]  --> pointer_ref.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let arr2 = arr1;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/start_rust-c797dff49a950a66.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to write `/opt/rustwide/target/debug/.fingerprint/start-rust-c797dff49a950a66/dep-bin-start-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/start_rust-94a59772db77fffd.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to write `/opt/rustwide/target/debug/.fingerprint/start-rust-94a59772db77fffd/dep-test-bin-start-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "7227ad7dd2d659f6ae30e5a145be2c32c72560be614fee0a445b259609c58ef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7227ad7dd2d659f6ae30e5a145be2c32c72560be614fee0a445b259609c58ef9", kill_on_drop: false }`
[INFO] [stdout] 7227ad7dd2d659f6ae30e5a145be2c32c72560be614fee0a445b259609c58ef9