[INFO] fetching crate compare_version 1.0.0...
[INFO] building compare_version-1.0.0 against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] extracting crate compare_version 1.0.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate compare_version 1.0.0 on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate compare_version 1.0.0
[INFO] finished tweaking crates.io crate compare_version 1.0.0
[INFO] tweaked toml for crates.io crate compare_version 1.0.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate compare_version 1.0.0 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6dc3c7fac224bfdab024080e0deb613beb5c7ce3679922bc5ebd3bf7be2b458c
[INFO] running `Command { std: "docker" "start" "-a" "6dc3c7fac224bfdab024080e0deb613beb5c7ce3679922bc5ebd3bf7be2b458c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6dc3c7fac224bfdab024080e0deb613beb5c7ce3679922bc5ebd3bf7be2b458c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dc3c7fac224bfdab024080e0deb613beb5c7ce3679922bc5ebd3bf7be2b458c", kill_on_drop: false }`
[INFO] [stdout] 6dc3c7fac224bfdab024080e0deb613beb5c7ce3679922bc5ebd3bf7be2b458c
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5e58404cea22c1395c371c2cec76c4d1aa41d85bfc9345fba9e96f2ca709061
[INFO] running `Command { std: "docker" "start" "-a" "a5e58404cea22c1395c371c2cec76c4d1aa41d85bfc9345fba9e96f2ca709061", kill_on_drop: false }`
[INFO] [stderr]    Compiling compare_version v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "a5e58404cea22c1395c371c2cec76c4d1aa41d85bfc9345fba9e96f2ca709061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5e58404cea22c1395c371c2cec76c4d1aa41d85bfc9345fba9e96f2ca709061", kill_on_drop: false }`
[INFO] [stdout] a5e58404cea22c1395c371c2cec76c4d1aa41d85bfc9345fba9e96f2ca709061
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdc5b95806215997d44437926f63def5bf34dff4c55ffa35bfb557e311edafaa
[INFO] running `Command { std: "docker" "start" "-a" "fdc5b95806215997d44437926f63def5bf34dff4c55ffa35bfb557e311edafaa", 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/rustup-home" to rootfs at "/opt/rustwide/rustup-home": create mountpoint for /opt/rustwide/rustup-home mount: mkdirat /var/lib/docker/overlay2/f5d359977cc43e3c6d8d158c28137487c22197241a515131b467c0d3eb61be08/merged/opt/rustwide/rustup-home: no space left on device: unknown
[INFO] running `Command { std: "docker" "inspect" "fdc5b95806215997d44437926f63def5bf34dff4c55ffa35bfb557e311edafaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdc5b95806215997d44437926f63def5bf34dff4c55ffa35bfb557e311edafaa", kill_on_drop: false }`
[INFO] [stdout] fdc5b95806215997d44437926f63def5bf34dff4c55ffa35bfb557e311edafaa