[INFO] cloning repository https://github.com/thiagochirana/binary_tree.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thiagochirana/binary_tree.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthiagochirana%2Fbinary_tree.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthiagochirana%2Fbinary_tree.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2d35801c7b9df786dce73cf481d35c7f6b27f00
[INFO] checking thiagochirana/binary_tree.rs against try#1f308f12738d8cc40bb23bf0c8114b37c164bb49 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthiagochirana%2Fbinary_tree.rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thiagochirana/binary_tree.rs on toolchain 1f308f12738d8cc40bb23bf0c8114b37c164bb49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thiagochirana/binary_tree.rs
[INFO] finished tweaking git repo https://github.com/thiagochirana/binary_tree.rs
[INFO] tweaked toml for git repo https://github.com/thiagochirana/binary_tree.rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/thiagochirana/binary_tree.rs 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" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "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 colour v2.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb73734dae7b37d762a2f7ae246287ad81fda1a6ddc4c434821ba24886eaa389
[INFO] running `Command { std: "docker" "start" "-a" "fb73734dae7b37d762a2f7ae246287ad81fda1a6ddc4c434821ba24886eaa389", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb73734dae7b37d762a2f7ae246287ad81fda1a6ddc4c434821ba24886eaa389", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb73734dae7b37d762a2f7ae246287ad81fda1a6ddc4c434821ba24886eaa389", kill_on_drop: false }`
[INFO] [stdout] fb73734dae7b37d762a2f7ae246287ad81fda1a6ddc4c434821ba24886eaa389
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1f308f12738d8cc40bb23bf0c8114b37c164bb49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 248d5236328767647a4c336a763a85bdbe9e5330ccd14e7878e43f87eac3ebe7
[INFO] running `Command { std: "docker" "start" "-a" "248d5236328767647a4c336a763a85bdbe9e5330ccd14e7878e43f87eac3ebe7", kill_on_drop: false }`
[INFO] [stderr]     Checking colour v2.1.0
[INFO] [stderr]     Checking binary-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "248d5236328767647a4c336a763a85bdbe9e5330ccd14e7878e43f87eac3ebe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "248d5236328767647a4c336a763a85bdbe9e5330ccd14e7878e43f87eac3ebe7", kill_on_drop: false }`
[INFO] [stdout] 248d5236328767647a4c336a763a85bdbe9e5330ccd14e7878e43f87eac3ebe7