[INFO] cloning repository https://github.com/swoyer2/letter_boxed
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swoyer2/letter_boxed" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswoyer2%2Fletter_boxed", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswoyer2%2Fletter_boxed'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 705248f8d036885a769f8f7de1c06f7d4f9cea58
[INFO] checking swoyer2/letter_boxed against try#7df376b035b3d12ff0386ad8b45b76dbe020257b for pr-142712
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswoyer2%2Fletter_boxed" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/swoyer2/letter_boxed
[INFO] finished tweaking git repo https://github.com/swoyer2/letter_boxed
[INFO] tweaked toml for git repo https://github.com/swoyer2/letter_boxed written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/swoyer2/letter_boxed on toolchain 7df376b035b3d12ff0386ad8b45b76dbe020257b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/swoyer2/letter_boxed 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" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61d937a003d393c1a529e20d293326517beb8c3b99437257c32d10fa8c24a6cc
[INFO] running `Command { std: "docker" "start" "-a" "61d937a003d393c1a529e20d293326517beb8c3b99437257c32d10fa8c24a6cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61d937a003d393c1a529e20d293326517beb8c3b99437257c32d10fa8c24a6cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61d937a003d393c1a529e20d293326517beb8c3b99437257c32d10fa8c24a6cc", kill_on_drop: false }`
[INFO] [stdout] 61d937a003d393c1a529e20d293326517beb8c3b99437257c32d10fa8c24a6cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdc8f24c9258039e81cc4d24ea3e218db701163fbc7f4ebf11a732b63d5c963d
[INFO] running `Command { std: "docker" "start" "-a" "cdc8f24c9258039e81cc4d24ea3e218db701163fbc7f4ebf11a732b63d5c963d", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create task for container: failed to start shim: mkdir /var/lib/containerd/io.containerd.runtime.v2.task/moby/cdc8f24c9258039e81cc4d24ea3e218db701163fbc7f4ebf11a732b63d5c963d: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "cdc8f24c9258039e81cc4d24ea3e218db701163fbc7f4ebf11a732b63d5c963d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdc8f24c9258039e81cc4d24ea3e218db701163fbc7f4ebf11a732b63d5c963d", kill_on_drop: false }`
[INFO] [stdout] cdc8f24c9258039e81cc4d24ea3e218db701163fbc7f4ebf11a732b63d5c963d