[INFO] fetching crate helixiser 0.4.2...
[INFO] testing helixiser-0.4.2 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate helixiser 0.4.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate helixiser 0.4.2
[INFO] finished tweaking crates.io crate helixiser 0.4.2
[INFO] tweaked toml for crates.io crate helixiser 0.4.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate helixiser 0.4.2 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate helixiser 0.4.2 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-iter v0.1.41
[INFO] [stderr]   Downloaded open v1.4.0
[INFO] [stderr]   Downloaded png v0.16.7
[INFO] [stderr]   Downloaded tiff v0.5.0
[INFO] [stderr]   Downloaded transpose v0.1.0
[INFO] [stderr]   Downloaded bytemuck v1.4.0
[INFO] [stderr]   Downloaded rustfft v3.0.1
[INFO] [stderr]   Downloaded rayon-core v1.8.0
[INFO] [stderr]   Downloaded num-bigint v0.3.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.20
[INFO] [stderr]   Downloaded rayon v1.4.0
[INFO] [stderr]   Downloaded image v0.23.9
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75088e60c0c8ce6643c378d8f6b56e6cb481d9a8cba44975925cc5b7914cfde9
[INFO] running `Command { std: "docker" "start" "-a" "75088e60c0c8ce6643c378d8f6b56e6cb481d9a8cba44975925cc5b7914cfde9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75088e60c0c8ce6643c378d8f6b56e6cb481d9a8cba44975925cc5b7914cfde9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75088e60c0c8ce6643c378d8f6b56e6cb481d9a8cba44975925cc5b7914cfde9", kill_on_drop: false }`
[INFO] [stdout] 75088e60c0c8ce6643c378d8f6b56e6cb481d9a8cba44975925cc5b7914cfde9
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c545f7d171e590fc2559a5468f8815ef0a1a8c1af247da93f1d14c60e6eb1bc
[INFO] running `Command { std: "docker" "start" "-a" "4c545f7d171e590fc2559a5468f8815ef0a1a8c1af247da93f1d14c60e6eb1bc", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `crossbeam-channel v0.4.4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack package `crossbeam-channel v0.4.4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/crossbeam-channel-0.4.4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "4c545f7d171e590fc2559a5468f8815ef0a1a8c1af247da93f1d14c60e6eb1bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c545f7d171e590fc2559a5468f8815ef0a1a8c1af247da93f1d14c60e6eb1bc", kill_on_drop: false }`
[INFO] [stdout] 4c545f7d171e590fc2559a5468f8815ef0a1a8c1af247da93f1d14c60e6eb1bc