[INFO] cloning repository https://github.com/michaelszymczak/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/michaelszymczak/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelszymczak%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelszymczak%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 167b6a1ecef6fd71a5ec7b0ead13a52977bee344
[INFO] checking michaelszymczak/rust-playground against try#69cf48176da7795067be67cef76e41a8aac9b134 for pr-146013-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelszymczak%2Frust-playground" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/michaelszymczak/rust-playground
[INFO] finished tweaking git repo https://github.com/michaelszymczak/rust-playground
[INFO] tweaked toml for git repo https://github.com/michaelszymczak/rust-playground written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/michaelszymczak/rust-playground on toolchain 69cf48176da7795067be67cef76e41a8aac9b134
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+69cf48176da7795067be67cef76e41a8aac9b134" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/michaelszymczak/rust-playground 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" "+69cf48176da7795067be67cef76e41a8aac9b134" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+69cf48176da7795067be67cef76e41a8aac9b134" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f626aa1bcf7f2fe324f02199f822e347ebe6ff6dae28bd2daea7942da7052ec8
[INFO] running `Command { std: "docker" "start" "-a" "f626aa1bcf7f2fe324f02199f822e347ebe6ff6dae28bd2daea7942da7052ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f626aa1bcf7f2fe324f02199f822e347ebe6ff6dae28bd2daea7942da7052ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f626aa1bcf7f2fe324f02199f822e347ebe6ff6dae28bd2daea7942da7052ec8", kill_on_drop: false }`
[INFO] [stdout] f626aa1bcf7f2fe324f02199f822e347ebe6ff6dae28bd2daea7942da7052ec8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+69cf48176da7795067be67cef76e41a8aac9b134" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef964ad39777534fae059a6d2a1dcea9cd10be65062477d65bd5ad93fbeb9d46
[INFO] running `Command { std: "docker" "start" "-a" "ef964ad39777534fae059a6d2a1dcea9cd10be65062477d65bd5ad93fbeb9d46", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking tcp v0.1.0 (/opt/rustwide/workdir/tcp)
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking misc001 v0.1.0 (/opt/rustwide/workdir/misc001)
[INFO] [stderr]     Checking guess v0.1.0 (/opt/rustwide/workdir/guess)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.48s
[INFO] running `Command { std: "docker" "inspect" "ef964ad39777534fae059a6d2a1dcea9cd10be65062477d65bd5ad93fbeb9d46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef964ad39777534fae059a6d2a1dcea9cd10be65062477d65bd5ad93fbeb9d46", kill_on_drop: false }`
[INFO] [stdout] ef964ad39777534fae059a6d2a1dcea9cd10be65062477d65bd5ad93fbeb9d46