[INFO] cloning repository https://github.com/cruise1230/exam-grading
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cruise1230/exam-grading" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcruise1230%2Fexam-grading", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcruise1230%2Fexam-grading'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43c83a84bd0cc7914e220e613a7aeaf22b3f8da0
[INFO] checking cruise1230/exam-grading against master#cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd for pr-145463
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcruise1230%2Fexam-grading" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cruise1230/exam-grading
[INFO] finished tweaking git repo https://github.com/cruise1230/exam-grading
[INFO] tweaked toml for git repo https://github.com/cruise1230/exam-grading written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cruise1230/exam-grading on toolchain cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cruise1230/exam-grading 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" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9339b73bd32c11fb47078e336df9b9473aacb8ce70ab33d90f23f319013274b7
[INFO] running `Command { std: "docker" "start" "-a" "9339b73bd32c11fb47078e336df9b9473aacb8ce70ab33d90f23f319013274b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9339b73bd32c11fb47078e336df9b9473aacb8ce70ab33d90f23f319013274b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9339b73bd32c11fb47078e336df9b9473aacb8ce70ab33d90f23f319013274b7", kill_on_drop: false }`
[INFO] [stdout] 9339b73bd32c11fb47078e336df9b9473aacb8ce70ab33d90f23f319013274b7
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f35c9662810fe16e0dee422eecbe88616daf9db1a18dabc763c431466fc0504
[INFO] running `Command { std: "docker" "start" "-a" "5f35c9662810fe16e0dee422eecbe88616daf9db1a18dabc763c431466fc0504", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/.fingerprint/rustlings-3efffe97d9ba2f85`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "5f35c9662810fe16e0dee422eecbe88616daf9db1a18dabc763c431466fc0504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f35c9662810fe16e0dee422eecbe88616daf9db1a18dabc763c431466fc0504", kill_on_drop: false }`
[INFO] [stdout] 5f35c9662810fe16e0dee422eecbe88616daf9db1a18dabc763c431466fc0504