[INFO] fetching crate srgb 0.3.2...
[INFO] building srgb-0.3.2 against master#c8e6a9e8b6251bbc8276cb78cabe1998deecbed7 for pr-97334-2
[INFO] extracting crate srgb 0.3.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate srgb 0.3.2 on toolchain c8e6a9e8b6251bbc8276cb78cabe1998deecbed7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8e6a9e8b6251bbc8276cb78cabe1998deecbed7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate srgb 0.3.2
[INFO] finished tweaking crates.io crate srgb 0.3.2
[INFO] tweaked toml for crates.io crate srgb 0.3.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+c8e6a9e8b6251bbc8276cb78cabe1998deecbed7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8e6a9e8b6251bbc8276cb78cabe1998deecbed7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rgb_derivation v0.2.0
[INFO] [stderr]   Downloaded kahan v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+c8e6a9e8b6251bbc8276cb78cabe1998deecbed7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12c0fa5351ca8beffa962ecfb824ab013e6161be1952ab68f31ab5c10cf9be95
[INFO] running `Command { std: "docker" "start" "-a" "12c0fa5351ca8beffa962ecfb824ab013e6161be1952ab68f31ab5c10cf9be95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12c0fa5351ca8beffa962ecfb824ab013e6161be1952ab68f31ab5c10cf9be95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12c0fa5351ca8beffa962ecfb824ab013e6161be1952ab68f31ab5c10cf9be95", kill_on_drop: false }`
[INFO] [stdout] 12c0fa5351ca8beffa962ecfb824ab013e6161be1952ab68f31ab5c10cf9be95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+c8e6a9e8b6251bbc8276cb78cabe1998deecbed7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 749b357e488fe14fc61084fe1514129454458b221164ff9b015bf318666734e2
[INFO] running `Command { std: "docker" "start" "-a" "749b357e488fe14fc61084fe1514129454458b221164ff9b015bf318666734e2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.5.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling rug v1.19.0
[INFO] [stderr]    Compiling num-complex v0.4.3
[INFO] [stderr]    Compiling rgb_derivation v0.2.0
[INFO] [stderr]    Compiling num v0.4.0
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "749b357e488fe14fc61084fe1514129454458b221164ff9b015bf318666734e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "749b357e488fe14fc61084fe1514129454458b221164ff9b015bf318666734e2", kill_on_drop: false }`
[INFO] [stdout] 749b357e488fe14fc61084fe1514129454458b221164ff9b015bf318666734e2