[INFO] cloning repository https://github.com/mike-barber/rust-libr-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mike-barber/rust-libr-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmike-barber%2Frust-libr-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmike-barber%2Frust-libr-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07546d330da80e56efe9900a3dea4f35d06c4958
[INFO] checking mike-barber/rust-libr-test against master#06194cadcd0948a7100b46737f61e82b8c00d632 for pr-117967-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmike-barber%2Frust-libr-test" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mike-barber/rust-libr-test on toolchain 06194cadcd0948a7100b46737f61e82b8c00d632
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+06194cadcd0948a7100b46737f61e82b8c00d632" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mike-barber/rust-libr-test
[INFO] finished tweaking git repo https://github.com/mike-barber/rust-libr-test
[INFO] tweaked toml for git repo https://github.com/mike-barber/rust-libr-test written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mike-barber/rust-libr-test 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" "+06194cadcd0948a7100b46737f61e82b8c00d632" "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] checking mike-barber/rust-libr-test against try#6e8eb3d1ba265821f8cc640134ce012d1ff211d8 for pr-117967-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmike-barber%2Frust-libr-test" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mike-barber/rust-libr-test on toolchain 6e8eb3d1ba265821f8cc640134ce012d1ff211d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6e8eb3d1ba265821f8cc640134ce012d1ff211d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mike-barber/rust-libr-test
[INFO] finished tweaking git repo https://github.com/mike-barber/rust-libr-test
[INFO] tweaked toml for git repo https://github.com/mike-barber/rust-libr-test written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mike-barber/rust-libr-test 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" "+6e8eb3d1ba265821f8cc640134ce012d1ff211d8" "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
[INFO] checking mike-barber/rust-libr-test against try#6e8eb3d1ba265821f8cc640134ce012d1ff211d8 for pr-117967-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmike-barber%2Frust-libr-test" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mike-barber/rust-libr-test on toolchain 6e8eb3d1ba265821f8cc640134ce012d1ff211d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6e8eb3d1ba265821f8cc640134ce012d1ff211d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mike-barber/rust-libr-test
[INFO] finished tweaking git repo https://github.com/mike-barber/rust-libr-test
[INFO] tweaked toml for git repo https://github.com/mike-barber/rust-libr-test written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mike-barber/rust-libr-test 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" "+6e8eb3d1ba265821f8cc640134ce012d1ff211d8" "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 extendr-api v0.2.0
[INFO] [stderr]   Downloaded extendr-engine v0.2.0
[INFO] [stderr]   Downloaded extendr-macros v0.2.0
[INFO] [stderr]   Downloaded libR-sys v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6e8eb3d1ba265821f8cc640134ce012d1ff211d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67babe2a24a3daf0654a36d35fc59acdc965be88bfbf4a9f82c12afe8812da5b
[INFO] running `Command { std: "docker" "start" "-a" "67babe2a24a3daf0654a36d35fc59acdc965be88bfbf4a9f82c12afe8812da5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67babe2a24a3daf0654a36d35fc59acdc965be88bfbf4a9f82c12afe8812da5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67babe2a24a3daf0654a36d35fc59acdc965be88bfbf4a9f82c12afe8812da5b", kill_on_drop: false }`
[INFO] [stdout] 67babe2a24a3daf0654a36d35fc59acdc965be88bfbf4a9f82c12afe8812da5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6e8eb3d1ba265821f8cc640134ce012d1ff211d8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21472358b4cd21ca46c927c30187ca3b3f19ab91bacfe6694d1050f541361a28
[INFO] running `Command { std: "docker" "start" "-a" "21472358b4cd21ca46c927c30187ca3b3f19ab91bacfe6694d1050f541361a28", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libR-sys v0.2.2
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling extendr-engine v0.2.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling extendr-macros v0.2.0
[INFO] [stderr]     Checking extendr-api v0.2.0
[INFO] [stderr]     Checking rust-libr-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.07s
[INFO] running `Command { std: "docker" "inspect" "21472358b4cd21ca46c927c30187ca3b3f19ab91bacfe6694d1050f541361a28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21472358b4cd21ca46c927c30187ca3b3f19ab91bacfe6694d1050f541361a28", kill_on_drop: false }`
[INFO] [stdout] 21472358b4cd21ca46c927c30187ca3b3f19ab91bacfe6694d1050f541361a28