[INFO] cloning repository https://github.com/PolideaPlayground/RustJuliaSet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PolideaPlayground/RustJuliaSet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolideaPlayground%2FRustJuliaSet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolideaPlayground%2FRustJuliaSet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 535a091d7df7101d8ee3f078cfcb389236c78846
[INFO] checking PolideaPlayground/RustJuliaSet against master#7606c13961ddc1174b70638e934df0439b7dc515 for pr-121979
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolideaPlayground%2FRustJuliaSet" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PolideaPlayground/RustJuliaSet on toolchain 7606c13961ddc1174b70638e934df0439b7dc515
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7606c13961ddc1174b70638e934df0439b7dc515" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PolideaPlayground/RustJuliaSet
[INFO] finished tweaking git repo https://github.com/PolideaPlayground/RustJuliaSet
[INFO] tweaked toml for git repo https://github.com/PolideaPlayground/RustJuliaSet written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/PolideaPlayground/RustJuliaSet 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" "+7606c13961ddc1174b70638e934df0439b7dc515" "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 PolideaPlayground/RustJuliaSet against try#ae973628c64ab60398819bcc1fd9f08ae68ad5b5 for pr-121979
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolideaPlayground%2FRustJuliaSet" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PolideaPlayground/RustJuliaSet on toolchain ae973628c64ab60398819bcc1fd9f08ae68ad5b5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PolideaPlayground/RustJuliaSet
[INFO] finished tweaking git repo https://github.com/PolideaPlayground/RustJuliaSet
[INFO] tweaked toml for git repo https://github.com/PolideaPlayground/RustJuliaSet written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/PolideaPlayground/RustJuliaSet 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" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "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 PolideaPlayground/RustJuliaSet against try#ae973628c64ab60398819bcc1fd9f08ae68ad5b5 for pr-121979
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolideaPlayground%2FRustJuliaSet" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PolideaPlayground/RustJuliaSet on toolchain ae973628c64ab60398819bcc1fd9f08ae68ad5b5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PolideaPlayground/RustJuliaSet
[INFO] finished tweaking git repo https://github.com/PolideaPlayground/RustJuliaSet
[INFO] tweaked toml for git repo https://github.com/PolideaPlayground/RustJuliaSet written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/PolideaPlayground/RustJuliaSet 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" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "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 cast v0.2.2
[INFO] [stderr]   Downloaded minifb v0.13.0
[INFO] [stderr]   Downloaded orbclient v0.3.27
[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" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06d4e2aab2a480679f713874a3b2103ac90812ecfe0cc3026b4af16148b63ec4
[INFO] running `Command { std: "docker" "start" "-a" "06d4e2aab2a480679f713874a3b2103ac90812ecfe0cc3026b4af16148b63ec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06d4e2aab2a480679f713874a3b2103ac90812ecfe0cc3026b4af16148b63ec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06d4e2aab2a480679f713874a3b2103ac90812ecfe0cc3026b4af16148b63ec4", kill_on_drop: false }`
[INFO] [stdout] 06d4e2aab2a480679f713874a3b2103ac90812ecfe0cc3026b4af16148b63ec4
[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" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ac677e0d4f3533b25d4d7019d8471d2e73f38401c19eebc12bca0ebb6a6477d
[INFO] running `Command { std: "docker" "start" "-a" "3ac677e0d4f3533b25d4d7019d8471d2e73f38401c19eebc12bca0ebb6a6477d", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling minifb v0.13.0
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking fractal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.45s
[INFO] running `Command { std: "docker" "inspect" "3ac677e0d4f3533b25d4d7019d8471d2e73f38401c19eebc12bca0ebb6a6477d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac677e0d4f3533b25d4d7019d8471d2e73f38401c19eebc12bca0ebb6a6477d", kill_on_drop: false }`
[INFO] [stdout] 3ac677e0d4f3533b25d4d7019d8471d2e73f38401c19eebc12bca0ebb6a6477d