[INFO] fetching crate arb-sys 0.3.6...
[INFO] testing arb-sys-0.3.6 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate arb-sys 0.3.6 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate arb-sys 0.3.6
[INFO] finished tweaking crates.io crate arb-sys 0.3.6
[INFO] tweaked toml for crates.io crate arb-sys 0.3.6 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate arb-sys 0.3.6 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[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 flint-sys v0.7.3
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.6.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ec0c7535b7a08441c6057185ac6c300c0760252f8429656a7d8f36d1ce767faa
[INFO] running `Command { std: "docker" "start" "-a" "ec0c7535b7a08441c6057185ac6c300c0760252f8429656a7d8f36d1ce767faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec0c7535b7a08441c6057185ac6c300c0760252f8429656a7d8f36d1ce767faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec0c7535b7a08441c6057185ac6c300c0760252f8429656a7d8f36d1ce767faa", kill_on_drop: false }`
[INFO] [stdout] ec0c7535b7a08441c6057185ac6c300c0760252f8429656a7d8f36d1ce767faa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4e23b85599e17e43af7014239bc936b63182393e3290763beb3f008a672de83b
[INFO] running `Command { std: "docker" "start" "-a" "4e23b85599e17e43af7014239bc936b63182393e3290763beb3f008a672de83b", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.7
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling flint-sys v0.7.3
[INFO] [stderr]    Compiling arb-sys v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling derivative v2.2.0
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "4e23b85599e17e43af7014239bc936b63182393e3290763beb3f008a672de83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e23b85599e17e43af7014239bc936b63182393e3290763beb3f008a672de83b", kill_on_drop: false }`
[INFO] [stdout] 4e23b85599e17e43af7014239bc936b63182393e3290763beb3f008a672de83b