[INFO] cloning repository https://github.com/roshankarande/rust_learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roshankarande/rust_learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froshankarande%2Frust_learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froshankarande%2Frust_learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d43f5cb83f56b37e3b3d0831b48a3de173c6fc5
[INFO] checking roshankarande/rust_learn against try#af54b6062f33b99e418444700f3a823ef0214052 for pr-138952
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froshankarande%2Frust_learn" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/roshankarande/rust_learn on toolchain af54b6062f33b99e418444700f3a823ef0214052
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af54b6062f33b99e418444700f3a823ef0214052" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/roshankarande/rust_learn
[INFO] finished tweaking git repo https://github.com/roshankarande/rust_learn
[INFO] tweaked toml for git repo https://github.com/roshankarande/rust_learn written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/roshankarande/rust_learn 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" "+af54b6062f33b99e418444700f3a823ef0214052" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-3-tc2/source/session3/logspan/Cargo.toml: unused manifest key: build
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+af54b6062f33b99e418444700f3a823ef0214052" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c3d396bbf0803d010e3eb3a6a2a02c1b7b4cec34a218b26dc2cac2d25cd8107
[INFO] running `Command { std: "docker" "start" "-a" "7c3d396bbf0803d010e3eb3a6a2a02c1b7b4cec34a218b26dc2cac2d25cd8107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c3d396bbf0803d010e3eb3a6a2a02c1b7b4cec34a218b26dc2cac2d25cd8107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c3d396bbf0803d010e3eb3a6a2a02c1b7b4cec34a218b26dc2cac2d25cd8107", kill_on_drop: false }`
[INFO] [stdout] 7c3d396bbf0803d010e3eb3a6a2a02c1b7b4cec34a218b26dc2cac2d25cd8107
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+af54b6062f33b99e418444700f3a823ef0214052" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e46db1e04ffa2b6ed88b15b026d38421f16ccdccf86aa07a75d928670eba32f
[INFO] running `Command { std: "docker" "start" "-a" "5e46db1e04ffa2b6ed88b15b026d38421f16ccdccf86aa07a75d928670eba32f", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target" to rootfs at "/opt/rustwide/target": mkdir /var/lib/docker/overlay2/4377b69e71d2fa402844717994b12ea39e143ed5074ad7482f4bac6056f2fdcd/merged/opt/rustwide/target: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "5e46db1e04ffa2b6ed88b15b026d38421f16ccdccf86aa07a75d928670eba32f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e46db1e04ffa2b6ed88b15b026d38421f16ccdccf86aa07a75d928670eba32f", kill_on_drop: false }`
[INFO] [stdout] 5e46db1e04ffa2b6ed88b15b026d38421f16ccdccf86aa07a75d928670eba32f