[INFO] cloning repository https://github.com/arwolfe/learnrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arwolfe/learnrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farwolfe%2Flearnrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farwolfe%2Flearnrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1e225575c9ad3cafcf928a08f2012459fe85340
[INFO] testing arwolfe/learnrust/f1e225575c9ad3cafcf928a08f2012459fe85340 against master#8dd5cd0bc1d683c30805e1dc831cac546b621a75 for pr-131095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farwolfe%2Flearnrust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arwolfe/learnrust on toolchain 8dd5cd0bc1d683c30805e1dc831cac546b621a75
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8dd5cd0bc1d683c30805e1dc831cac546b621a75" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arwolfe/learnrust
[INFO] finished tweaking git repo https://github.com/arwolfe/learnrust
[INFO] tweaked toml for git repo https://github.com/arwolfe/learnrust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/arwolfe/learnrust 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" "+8dd5cd0bc1d683c30805e1dc831cac546b621a75" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+8dd5cd0bc1d683c30805e1dc831cac546b621a75" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3e96caca16d727e994236ff83f32257cca20371286546e7bc9a7190bb61baa3
[INFO] running `Command { std: "docker" "start" "-a" "b3e96caca16d727e994236ff83f32257cca20371286546e7bc9a7190bb61baa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3e96caca16d727e994236ff83f32257cca20371286546e7bc9a7190bb61baa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e96caca16d727e994236ff83f32257cca20371286546e7bc9a7190bb61baa3", kill_on_drop: false }`
[INFO] [stdout] b3e96caca16d727e994236ff83f32257cca20371286546e7bc9a7190bb61baa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+8dd5cd0bc1d683c30805e1dc831cac546b621a75" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8860e6a351558379e10fcff783b7cd6a7e19d050c97d70da4d566776ac8de9ee
[INFO] running `Command { std: "docker" "start" "-a" "8860e6a351558379e10fcff783b7cd6a7e19d050c97d70da4d566776ac8de9ee", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/.fingerprint/proc-macro2-7304f74fc87b141c`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "8860e6a351558379e10fcff783b7cd6a7e19d050c97d70da4d566776ac8de9ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8860e6a351558379e10fcff783b7cd6a7e19d050c97d70da4d566776ac8de9ee", kill_on_drop: false }`
[INFO] [stdout] 8860e6a351558379e10fcff783b7cd6a7e19d050c97d70da4d566776ac8de9ee