[INFO] fetching crate srgb 0.3.4...
[INFO] testing srgb-0.3.4 against 1.91.0 for beta-1.92-2
[INFO] extracting crate srgb 0.3.4 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate srgb 0.3.4
[INFO] finished tweaking crates.io crate srgb 0.3.4
[INFO] tweaked toml for crates.io crate srgb 0.3.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate srgb 0.3.4 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate srgb 0.3.4 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" "+1.91.0" "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 ...
[INFO] [stderr]   Downloaded float_next_after v0.1.5
[INFO] [stderr]   Downloaded kahan v0.1.4
[INFO] [stderr]   Downloaded num v0.4.1
[INFO] [stderr]   Downloaded rgb_derivation v0.2.0
[INFO] [stderr]   Downloaded criterion v0.4.0
[INFO] [stderr]   Downloaded rug v1.24.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c4a23b4eefa3dd6d5344ddeeae3f8ad3a367d3e62174bce962a8fdea645e6f6
[INFO] running `Command { std: "docker" "start" "-a" "8c4a23b4eefa3dd6d5344ddeeae3f8ad3a367d3e62174bce962a8fdea645e6f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c4a23b4eefa3dd6d5344ddeeae3f8ad3a367d3e62174bce962a8fdea645e6f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c4a23b4eefa3dd6d5344ddeeae3f8ad3a367d3e62174bce962a8fdea645e6f6", kill_on_drop: false }`
[INFO] [stdout] 8c4a23b4eefa3dd6d5344ddeeae3f8ad3a367d3e62174bce962a8fdea645e6f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27910c63e9db68f1d0602b2338a6657c5042033afad085970368c194f134f328
[INFO] running `Command { std: "docker" "start" "-a" "27910c63e9db68f1d0602b2338a6657c5042033afad085970368c194f134f328", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.2
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling rug v1.24.0
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling rgb_derivation v0.2.0
[INFO] [stderr]    Compiling num v0.4.1
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "27910c63e9db68f1d0602b2338a6657c5042033afad085970368c194f134f328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27910c63e9db68f1d0602b2338a6657c5042033afad085970368c194f134f328", kill_on_drop: false }`
[INFO] [stdout] 27910c63e9db68f1d0602b2338a6657c5042033afad085970368c194f134f328