[INFO] cloning repository https://github.com/merlinio2000/rs-collatz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/merlinio2000/rs-collatz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerlinio2000%2Frs-collatz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerlinio2000%2Frs-collatz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd1bc96d04d0c191b64f1659f30d798d7c828973
[INFO] building merlinio2000/rs-collatz against master#d59f06fc64844ec2073e5e888f7470989ef25ff9 for pr-119440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerlinio2000%2Frs-collatz" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/merlinio2000/rs-collatz on toolchain d59f06fc64844ec2073e5e888f7470989ef25ff9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/merlinio2000/rs-collatz
[INFO] finished tweaking git repo https://github.com/merlinio2000/rs-collatz
[INFO] tweaked toml for git repo https://github.com/merlinio2000/rs-collatz written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/merlinio2000/rs-collatz 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" "+d59f06fc64844ec2073e5e888f7470989ef25ff9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] building merlinio2000/rs-collatz against try#fe8f664b41f030f307cfeb6cb8c3a1419292aeed for pr-119440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerlinio2000%2Frs-collatz" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/merlinio2000/rs-collatz on toolchain fe8f664b41f030f307cfeb6cb8c3a1419292aeed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/merlinio2000/rs-collatz
[INFO] finished tweaking git repo https://github.com/merlinio2000/rs-collatz
[INFO] tweaked toml for git repo https://github.com/merlinio2000/rs-collatz written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/merlinio2000/rs-collatz 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" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "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] building merlinio2000/rs-collatz against try#fe8f664b41f030f307cfeb6cb8c3a1419292aeed for pr-119440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerlinio2000%2Frs-collatz" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/merlinio2000/rs-collatz on toolchain fe8f664b41f030f307cfeb6cb8c3a1419292aeed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/merlinio2000/rs-collatz
[INFO] finished tweaking git repo https://github.com/merlinio2000/rs-collatz
[INFO] tweaked toml for git repo https://github.com/merlinio2000/rs-collatz written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/merlinio2000/rs-collatz 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" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43f8c73de4ef9d44cd920a1233ad37e169db3c53136d1172c88fcc2676369785
[INFO] running `Command { std: "docker" "start" "-a" "43f8c73de4ef9d44cd920a1233ad37e169db3c53136d1172c88fcc2676369785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43f8c73de4ef9d44cd920a1233ad37e169db3c53136d1172c88fcc2676369785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43f8c73de4ef9d44cd920a1233ad37e169db3c53136d1172c88fcc2676369785", kill_on_drop: false }`
[INFO] [stdout] 43f8c73de4ef9d44cd920a1233ad37e169db3c53136d1172c88fcc2676369785
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6df06d85bb6206c88600379b004f9c882110813b0e38fa2dadb04ba39045abb6
[INFO] running `Command { std: "docker" "start" "-a" "6df06d85bb6206c88600379b004f9c882110813b0e38fa2dadb04ba39045abb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rs-collatz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "6df06d85bb6206c88600379b004f9c882110813b0e38fa2dadb04ba39045abb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6df06d85bb6206c88600379b004f9c882110813b0e38fa2dadb04ba39045abb6", kill_on_drop: false }`
[INFO] [stdout] 6df06d85bb6206c88600379b004f9c882110813b0e38fa2dadb04ba39045abb6
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+fe8f664b41f030f307cfeb6cb8c3a1419292aeed" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 949cb3a3c4cb2be459635d4c68055898dc0b83fb004179074a59bdaa18232251
[INFO] running `Command { std: "docker" "start" "-a" "949cb3a3c4cb2be459635d4c68055898dc0b83fb004179074a59bdaa18232251", kill_on_drop: false }`
[INFO] [stderr]    Compiling rs-collatz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "949cb3a3c4cb2be459635d4c68055898dc0b83fb004179074a59bdaa18232251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "949cb3a3c4cb2be459635d4c68055898dc0b83fb004179074a59bdaa18232251", kill_on_drop: false }`
[INFO] [stdout] 949cb3a3c4cb2be459635d4c68055898dc0b83fb004179074a59bdaa18232251