[INFO] cloning repository https://github.com/lucasgrecco/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucasgrecco/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucasgrecco%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucasgrecco%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a25cc7062576324da38c6674ad8eedad25f276fe
[INFO] checking lucasgrecco/rust-playground against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucasgrecco%2Frust-playground" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucasgrecco/rust-playground on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lucasgrecco/rust-playground
[INFO] finished tweaking git repo https://github.com/lucasgrecco/rust-playground
[INFO] tweaked toml for git repo https://github.com/lucasgrecco/rust-playground written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/lucasgrecco/rust-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90bbc5dca3dd7aacc3e13f08f1ffb4c87a7436be6c86f3a4cdea4b9ab8788fec
[INFO] running `Command { std: "docker" "start" "-a" "90bbc5dca3dd7aacc3e13f08f1ffb4c87a7436be6c86f3a4cdea4b9ab8788fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90bbc5dca3dd7aacc3e13f08f1ffb4c87a7436be6c86f3a4cdea4b9ab8788fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90bbc5dca3dd7aacc3e13f08f1ffb4c87a7436be6c86f3a4cdea4b9ab8788fec", kill_on_drop: false }`
[INFO] [stdout] 90bbc5dca3dd7aacc3e13f08f1ffb4c87a7436be6c86f3a4cdea4b9ab8788fec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f204316d079e49304f22e088f3a318eb345d098e682d1514e3fc2e00bcdb7ac6
[INFO] running `Command { std: "docker" "start" "-a" "f204316d079e49304f22e088f3a318eb345d098e682d1514e3fc2e00bcdb7ac6", 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]    Compiling libc v0.2.74
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.37s
[INFO] running `Command { std: "docker" "inspect" "f204316d079e49304f22e088f3a318eb345d098e682d1514e3fc2e00bcdb7ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f204316d079e49304f22e088f3a318eb345d098e682d1514e3fc2e00bcdb7ac6", kill_on_drop: false }`
[INFO] [stdout] f204316d079e49304f22e088f3a318eb345d098e682d1514e3fc2e00bcdb7ac6