[INFO] fetching crate rug 1.26.1...
[INFO] checking rug-1.26.1 against try#50b21af28e291c419ae81eebcb7705fb4200dc90 for pr-135167
[INFO] extracting crate rug 1.26.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate rug 1.26.1 on toolchain 50b21af28e291c419ae81eebcb7705fb4200dc90
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rug 1.26.1
[INFO] finished tweaking crates.io crate rug 1.26.1
[INFO] tweaked toml for crates.io crate rug 1.26.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 30 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75b987a5d022b1bc8361b902f448ac3bd92aaf5ed378b7aa048e5015d19b8058
[INFO] running `Command { std: "docker" "start" "-a" "75b987a5d022b1bc8361b902f448ac3bd92aaf5ed378b7aa048e5015d19b8058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75b987a5d022b1bc8361b902f448ac3bd92aaf5ed378b7aa048e5015d19b8058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75b987a5d022b1bc8361b902f448ac3bd92aaf5ed378b7aa048e5015d19b8058", kill_on_drop: false }`
[INFO] [stdout] 75b987a5d022b1bc8361b902f448ac3bd92aaf5ed378b7aa048e5015d19b8058
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 915e19ef1622f84086ac842c490482b45b54f60a4eee59d474a6b8bbc42352f1
[INFO] running `Command { std: "docker" "start" "-a" "915e19ef1622f84086ac842c490482b45b54f60a4eee59d474a6b8bbc42352f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.4
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling rug v1.26.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_test v1.0.177
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_json v1.0.135
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "915e19ef1622f84086ac842c490482b45b54f60a4eee59d474a6b8bbc42352f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "915e19ef1622f84086ac842c490482b45b54f60a4eee59d474a6b8bbc42352f1", kill_on_drop: false }`
[INFO] [stdout] 915e19ef1622f84086ac842c490482b45b54f60a4eee59d474a6b8bbc42352f1