[INFO] fetching crate b_trees 0.0.12...
[INFO] checking b_trees-0.0.12 against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] extracting crate b_trees 0.0.12 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate b_trees 0.0.12
[INFO] finished tweaking crates.io crate b_trees 0.0.12
[INFO] tweaked toml for crates.io crate b_trees 0.0.12 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate b_trees 0.0.12 on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate b_trees 0.0.12 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc998aa0b4309e70368736d712bd56ee8fd32ac0d5affded5eae1778a2f8923a
[INFO] running `Command { std: "docker" "start" "-a" "fc998aa0b4309e70368736d712bd56ee8fd32ac0d5affded5eae1778a2f8923a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc998aa0b4309e70368736d712bd56ee8fd32ac0d5affded5eae1778a2f8923a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc998aa0b4309e70368736d712bd56ee8fd32ac0d5affded5eae1778a2f8923a", kill_on_drop: false }`
[INFO] [stdout] fc998aa0b4309e70368736d712bd56ee8fd32ac0d5affded5eae1778a2f8923a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e6805d521e991902c15d55a7fa36beeca409f11a5ae5401f63408908e7e3708
[INFO] running `Command { std: "docker" "start" "-a" "7e6805d521e991902c15d55a7fa36beeca409f11a5ae5401f63408908e7e3708", kill_on_drop: false }`
[INFO] [stderr]     Checking b_trees v0.0.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "7e6805d521e991902c15d55a7fa36beeca409f11a5ae5401f63408908e7e3708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e6805d521e991902c15d55a7fa36beeca409f11a5ae5401f63408908e7e3708", kill_on_drop: false }`
[INFO] [stdout] 7e6805d521e991902c15d55a7fa36beeca409f11a5ae5401f63408908e7e3708
