[INFO] fetching crate maestro 0.2.2...
[INFO] testing maestro-0.2.2 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237
[INFO] extracting crate maestro 0.2.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate maestro 0.2.2
[INFO] finished tweaking crates.io crate maestro 0.2.2
[INFO] tweaked toml for crates.io crate maestro 0.2.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate maestro 0.2.2 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate maestro 0.2.2 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded writeable v0.6.1
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[INFO] [stderr]   Downloaded strum v0.26.3
[INFO] [stderr]   Downloaded zerovec-derive v0.11.1
[INFO] [stderr]   Downloaded maestro_git v0.2.2
[INFO] [stderr]   Downloaded lock_api v0.4.13
[INFO] [stderr]   Downloaded smallvec v1.15.1
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[INFO] [stderr]   Downloaded darling v0.20.11
[INFO] [stderr]   Downloaded equivalent v1.0.2
[INFO] [stderr]   Downloaded heck v0.5.0
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded openssl-src v300.5.0+3.5.0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac1b41a7fdf04ab5c38160ee65f82a2803b7ba15547839057157d16929ae1bdd
[INFO] running `Command { std: "docker" "start" "-a" "ac1b41a7fdf04ab5c38160ee65f82a2803b7ba15547839057157d16929ae1bdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac1b41a7fdf04ab5c38160ee65f82a2803b7ba15547839057157d16929ae1bdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac1b41a7fdf04ab5c38160ee65f82a2803b7ba15547839057157d16929ae1bdd", kill_on_drop: false }`
[INFO] [stdout] ac1b41a7fdf04ab5c38160ee65f82a2803b7ba15547839057157d16929ae1bdd
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0277916a8f3f3548afca046e660c71385a6c7523936f51224392b09de2cf1fcd
[INFO] running `Command { std: "docker" "start" "-a" "0277916a8f3f3548afca046e660c71385a6c7523936f51224392b09de2cf1fcd", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/.fingerprint/maestro-4488943810d93fb7`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "0277916a8f3f3548afca046e660c71385a6c7523936f51224392b09de2cf1fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0277916a8f3f3548afca046e660c71385a6c7523936f51224392b09de2cf1fcd", kill_on_drop: false }`
[INFO] [stdout] 0277916a8f3f3548afca046e660c71385a6c7523936f51224392b09de2cf1fcd