[INFO] fetching crate byte-mutator 0.2.0...
[INFO] checking byte-mutator-0.2.0 against master#cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3 for pr-135841
[INFO] extracting crate byte-mutator 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate byte-mutator 0.2.0 on toolchain cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate byte-mutator 0.2.0
[INFO] finished tweaking crates.io crate byte-mutator 0.2.0
[INFO] tweaked toml for crates.io crate byte-mutator 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3" "generate-lockfile" "--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]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding arrayvec v0.5.2 (available: v0.7.6)
[INFO] [stderr]       Adding toml v0.5.11 (available: v0.8.19)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56148537e9ee6ddb97065d02148a15b639a11d3dbe6183e3812ea7cd980d0a67
[INFO] running `Command { std: "docker" "start" "-a" "56148537e9ee6ddb97065d02148a15b639a11d3dbe6183e3812ea7cd980d0a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56148537e9ee6ddb97065d02148a15b639a11d3dbe6183e3812ea7cd980d0a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56148537e9ee6ddb97065d02148a15b639a11d3dbe6183e3812ea7cd980d0a67", kill_on_drop: false }`
[INFO] [stdout] 56148537e9ee6ddb97065d02148a15b639a11d3dbe6183e3812ea7cd980d0a67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d308cfaf8a0e9037e8158b5ff20eecc30d1c37d3ab59f86e2ea0c88b914efaca
[INFO] running `Command { std: "docker" "start" "-a" "d308cfaf8a0e9037e8158b5ff20eecc30d1c37d3ab59f86e2ea0c88b914efaca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `unicode-ident` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/cd805f09ffbfa3896c8f50a619de9b67e1d9f3c3/bin/rustc --crate-name unicode_ident --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/unicode-ident-1.0.15/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=38149cb9bd62f643 -C extra-filename=-7e99a91c9b7e4c20 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d308cfaf8a0e9037e8158b5ff20eecc30d1c37d3ab59f86e2ea0c88b914efaca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d308cfaf8a0e9037e8158b5ff20eecc30d1c37d3ab59f86e2ea0c88b914efaca", kill_on_drop: false }`
[INFO] [stdout] d308cfaf8a0e9037e8158b5ff20eecc30d1c37d3ab59f86e2ea0c88b914efaca