[INFO] fetching crate ace-test-lib 0.1.0...
[INFO] checking ace-test-lib-0.1.0 against try#7f168b18704203996d3698515c88a036a9300946 for pr-102713
[INFO] extracting crate ace-test-lib 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ace-test-lib 0.1.0 on toolchain 7f168b18704203996d3698515c88a036a9300946
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f168b18704203996d3698515c88a036a9300946" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ace-test-lib 0.1.0
[INFO] finished tweaking crates.io crate ace-test-lib 0.1.0
[INFO] tweaked toml for crates.io crate ace-test-lib 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate ace-test-lib 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f168b18704203996d3698515c88a036a9300946" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+7f168b18704203996d3698515c88a036a9300946" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dce9d578657ed0b5a9328a9836fd4f470f0cd304cc6e68114cbe1effb11f46f6
[INFO] running `Command { std: "docker" "start" "-a" "dce9d578657ed0b5a9328a9836fd4f470f0cd304cc6e68114cbe1effb11f46f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dce9d578657ed0b5a9328a9836fd4f470f0cd304cc6e68114cbe1effb11f46f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce9d578657ed0b5a9328a9836fd4f470f0cd304cc6e68114cbe1effb11f46f6", kill_on_drop: false }`
[INFO] [stdout] dce9d578657ed0b5a9328a9836fd4f470f0cd304cc6e68114cbe1effb11f46f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+7f168b18704203996d3698515c88a036a9300946" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67d29ef29152e78a1288fb2474a1c9bab6afe03464f0b0750a2dd3acd0b86a98
[INFO] running `Command { std: "docker" "start" "-a" "67d29ef29152e78a1288fb2474a1c9bab6afe03464f0b0750a2dd3acd0b86a98", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking ace-test-lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.83s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "67d29ef29152e78a1288fb2474a1c9bab6afe03464f0b0750a2dd3acd0b86a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67d29ef29152e78a1288fb2474a1c9bab6afe03464f0b0750a2dd3acd0b86a98", kill_on_drop: false }`
[INFO] [stdout] 67d29ef29152e78a1288fb2474a1c9bab6afe03464f0b0750a2dd3acd0b86a98