[INFO] cloning repository https://github.com/wan-kamal/trains
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wan-kamal/trains" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwan-kamal%2Ftrains", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwan-kamal%2Ftrains'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwan-kamal%2Ftrains: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/wan-kamal/trains
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wan-kamal/trains" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwan-kamal%2Ftrains", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwan-kamal%2Ftrains'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8c156c3768dc954c618949c8f74820e283615f0
[INFO] checking wan-kamal/trains against master#a26e97be8826d408309fffbd8168362365719f50 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwan-kamal%2Ftrains" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wan-kamal/trains on toolchain a26e97be8826d408309fffbd8168362365719f50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wan-kamal/trains
[INFO] finished tweaking git repo https://github.com/wan-kamal/trains
[INFO] tweaked toml for git repo https://github.com/wan-kamal/trains written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wan-kamal/trains 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" "+a26e97be8826d408309fffbd8168362365719f50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03c8c575ff170fdc417ea8cce5c8be537e74e80816f0d984fa04ad67204b61e4
[INFO] running `Command { std: "docker" "start" "-a" "03c8c575ff170fdc417ea8cce5c8be537e74e80816f0d984fa04ad67204b61e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03c8c575ff170fdc417ea8cce5c8be537e74e80816f0d984fa04ad67204b61e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03c8c575ff170fdc417ea8cce5c8be537e74e80816f0d984fa04ad67204b61e4", kill_on_drop: false }`
[INFO] [stdout] 03c8c575ff170fdc417ea8cce5c8be537e74e80816f0d984fa04ad67204b61e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29f5529349fa76c2b65765a0bb6985b3685cd038785f8cf2bd6acdda77745b89
[INFO] running `Command { std: "docker" "start" "-a" "29f5529349fa76c2b65765a0bb6985b3685cd038785f8cf2bd6acdda77745b89", kill_on_drop: false }`
[INFO] [stderr]     Checking trains v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `train_test`
[INFO] [stdout]    --> src/main.rs:443:13
[INFO] [stdout]     |
[INFO] [stdout] 443 |         let train_test = graph.trains[0].clone();
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_train_test`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `package_test`
[INFO] [stdout]    --> src/main.rs:444:13
[INFO] [stdout]     |
[INFO] [stdout] 444 |         let package_test = graph.packages[0].clone();
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_package_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "29f5529349fa76c2b65765a0bb6985b3685cd038785f8cf2bd6acdda77745b89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29f5529349fa76c2b65765a0bb6985b3685cd038785f8cf2bd6acdda77745b89", kill_on_drop: false }`
[INFO] [stdout] 29f5529349fa76c2b65765a0bb6985b3685cd038785f8cf2bd6acdda77745b89