[INFO] fetching crate lser 0.1.0...
[INFO] checking lser-0.1.0 against master#e9271846294c4ee5bd7706df68180320c0b5ff20 for pr-119820
[INFO] extracting crate lser 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate lser 0.1.0 on toolchain e9271846294c4ee5bd7706df68180320c0b5ff20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lser 0.1.0
[INFO] finished tweaking crates.io crate lser 0.1.0
[INFO] tweaked toml for crates.io crate lser 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate lser 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" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "fetch" "--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
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking lser-0.1.0 against try#b69bfeecc49bf5661cf54497638430035ff61aa4 for pr-119820
[INFO] extracting crate lser 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate lser 0.1.0 on toolchain b69bfeecc49bf5661cf54497638430035ff61aa4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b69bfeecc49bf5661cf54497638430035ff61aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lser 0.1.0
[INFO] finished tweaking crates.io crate lser 0.1.0
[INFO] tweaked toml for crates.io crate lser 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate lser 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" "+b69bfeecc49bf5661cf54497638430035ff61aa4" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cli-table-derive v0.4.4
[INFO] [stderr]   Downloaded cli-table v0.4.6
[INFO] [stderr]   Downloaded syn v1.0.84
[INFO] [stderr]   Downloaded windows v0.29.0
[INFO] [stderr]   Downloaded serial_enumerator v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b69bfeecc49bf5661cf54497638430035ff61aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ca5bc85d979b1c5a96c505842f143961e5276cc7eaa40afabd8840c65c4bcb5
[INFO] running `Command { std: "docker" "start" "-a" "0ca5bc85d979b1c5a96c505842f143961e5276cc7eaa40afabd8840c65c4bcb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ca5bc85d979b1c5a96c505842f143961e5276cc7eaa40afabd8840c65c4bcb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ca5bc85d979b1c5a96c505842f143961e5276cc7eaa40afabd8840c65c4bcb5", kill_on_drop: false }`
[INFO] [stdout] 0ca5bc85d979b1c5a96c505842f143961e5276cc7eaa40afabd8840c65c4bcb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b69bfeecc49bf5661cf54497638430035ff61aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0c3a4ea0cea296d11786dc748a7ba2a3a71d55e1809b601541dc18a6a4feb0f
[INFO] running `Command { std: "docker" "start" "-a" "f0c3a4ea0cea296d11786dc748a7ba2a3a71d55e1809b601541dc18a6a4feb0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking serial_enumerator v0.2.2
[INFO] [stderr]    Compiling cli-table-derive v0.4.4
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking cli-table v0.4.6
[INFO] [stderr]     Checking lser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "f0c3a4ea0cea296d11786dc748a7ba2a3a71d55e1809b601541dc18a6a4feb0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0c3a4ea0cea296d11786dc748a7ba2a3a71d55e1809b601541dc18a6a4feb0f", kill_on_drop: false }`
[INFO] [stdout] f0c3a4ea0cea296d11786dc748a7ba2a3a71d55e1809b601541dc18a6a4feb0f