[INFO] fetching crate buildrs_playground 0.0.2...
[INFO] checking buildrs_playground-0.0.2 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate buildrs_playground 0.0.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate buildrs_playground 0.0.2
[INFO] finished tweaking crates.io crate buildrs_playground 0.0.2
[INFO] tweaked toml for crates.io crate buildrs_playground 0.0.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate buildrs_playground 0.0.2 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] [stderr]       Adding autocfg v0.1.8 (available: v1.5.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78e6d8272e19c3e64b01dc07a1e67c4280066d40c37b29e8dd6a9b4db6406dda
[INFO] running `Command { std: "docker" "start" "-a" "78e6d8272e19c3e64b01dc07a1e67c4280066d40c37b29e8dd6a9b4db6406dda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78e6d8272e19c3e64b01dc07a1e67c4280066d40c37b29e8dd6a9b4db6406dda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e6d8272e19c3e64b01dc07a1e67c4280066d40c37b29e8dd6a9b4db6406dda", kill_on_drop: false }`
[INFO] [stdout] 78e6d8272e19c3e64b01dc07a1e67c4280066d40c37b29e8dd6a9b4db6406dda
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b23ed9d3e3393fc967edbefc2e645193929188a3b55c385db39b8a814f3c321a
[INFO] running `Command { std: "docker" "start" "-a" "b23ed9d3e3393fc967edbefc2e645193929188a3b55c385db39b8a814f3c321a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling buildrs_playground v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: buildrs_playground@0.0.2: build.rs
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "b23ed9d3e3393fc967edbefc2e645193929188a3b55c385db39b8a814f3c321a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b23ed9d3e3393fc967edbefc2e645193929188a3b55c385db39b8a814f3c321a", kill_on_drop: false }`
[INFO] [stdout] b23ed9d3e3393fc967edbefc2e645193929188a3b55c385db39b8a814f3c321a