[INFO] cloning repository https://github.com/getbuguai/learning_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/getbuguai/learning_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgetbuguai%2Flearning_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgetbuguai%2Flearning_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20910e09640a3707285449c64c7757b6510e059d
[INFO] checking getbuguai/learning_rust against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgetbuguai%2Flearning_rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/getbuguai/learning_rust on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/getbuguai/learning_rust
[INFO] finished tweaking git repo https://github.com/getbuguai/learning_rust
[INFO] tweaked toml for git repo https://github.com/getbuguai/learning_rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/getbuguai/learning_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 815003d13e37e5149ff3b68559a8f40d34a622e74a6f8ae4150662f671b8b92c
[INFO] running `Command { std: "docker" "start" "-a" "815003d13e37e5149ff3b68559a8f40d34a622e74a6f8ae4150662f671b8b92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "815003d13e37e5149ff3b68559a8f40d34a622e74a6f8ae4150662f671b8b92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "815003d13e37e5149ff3b68559a8f40d34a622e74a6f8ae4150662f671b8b92c", kill_on_drop: false }`
[INFO] [stdout] 815003d13e37e5149ff3b68559a8f40d34a622e74a6f8ae4150662f671b8b92c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c32a3b7b04c74c268e8e9c7e76e96c31b8e206d25a45eca42f00c369fed3aaf7
[INFO] running `Command { std: "docker" "start" "-a" "c32a3b7b04c74c268e8e9c7e76e96c31b8e206d25a45eca42f00c369fed3aaf7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking learning_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.44s
[INFO] running `Command { std: "docker" "inspect" "c32a3b7b04c74c268e8e9c7e76e96c31b8e206d25a45eca42f00c369fed3aaf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c32a3b7b04c74c268e8e9c7e76e96c31b8e206d25a45eca42f00c369fed3aaf7", kill_on_drop: false }`
[INFO] [stdout] c32a3b7b04c74c268e8e9c7e76e96c31b8e206d25a45eca42f00c369fed3aaf7