[INFO] fetching crate clear 0.1.0...
[INFO] checking clear-0.1.0 against try#50b21af28e291c419ae81eebcb7705fb4200dc90 for pr-135167
[INFO] extracting crate clear 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate clear 0.1.0 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 clear 0.1.0
[INFO] finished tweaking crates.io crate clear 0.1.0
[INFO] tweaked toml for crates.io crate clear 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate clear 0.1.0 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" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking clear-0.1.0 against try#50b21af28e291c419ae81eebcb7705fb4200dc90 for pr-135167
[INFO] extracting crate clear 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate clear 0.1.0 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 clear 0.1.0
[INFO] finished tweaking crates.io crate clear 0.1.0
[INFO] tweaked toml for crates.io crate clear 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate clear 0.1.0 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" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fce9859c25d0abc21d2f980cc1087d9ca7357ade182737a0f13cdefc06bc7e3f
[INFO] running `Command { std: "docker" "start" "-a" "fce9859c25d0abc21d2f980cc1087d9ca7357ade182737a0f13cdefc06bc7e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fce9859c25d0abc21d2f980cc1087d9ca7357ade182737a0f13cdefc06bc7e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fce9859c25d0abc21d2f980cc1087d9ca7357ade182737a0f13cdefc06bc7e3f", kill_on_drop: false }`
[INFO] [stdout] fce9859c25d0abc21d2f980cc1087d9ca7357ade182737a0f13cdefc06bc7e3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 194a74d471cde4560eda74c086c2d5a32ffe47544480515e969f5bc63351e749
[INFO] running `Command { std: "docker" "start" "-a" "194a74d471cde4560eda74c086c2d5a32ffe47544480515e969f5bc63351e749", kill_on_drop: false }`
[INFO] [stderr]     Checking clear v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] running `Command { std: "docker" "inspect" "194a74d471cde4560eda74c086c2d5a32ffe47544480515e969f5bc63351e749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "194a74d471cde4560eda74c086c2d5a32ffe47544480515e969f5bc63351e749", kill_on_drop: false }`
[INFO] [stdout] 194a74d471cde4560eda74c086c2d5a32ffe47544480515e969f5bc63351e749