[INFO] fetching crate debug_tree 0.4.0...
[INFO] checking debug_tree-0.4.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate debug_tree 0.4.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate debug_tree 0.4.0
[INFO] finished tweaking crates.io crate debug_tree 0.4.0
[INFO] tweaked toml for crates.io crate debug_tree 0.4.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate debug_tree 0.4.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate debug_tree 0.4.0 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ea282a04f795f788fb658acae61f98ed762f60ce26e6ea47841f16790584d4f
[INFO] running `Command { std: "docker" "start" "-a" "3ea282a04f795f788fb658acae61f98ed762f60ce26e6ea47841f16790584d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ea282a04f795f788fb658acae61f98ed762f60ce26e6ea47841f16790584d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ea282a04f795f788fb658acae61f98ed762f60ce26e6ea47841f16790584d4f", kill_on_drop: false }`
[INFO] [stdout] 3ea282a04f795f788fb658acae61f98ed762f60ce26e6ea47841f16790584d4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9d657d1f47a3a1dfbfc64892d849d2e8d6d90437c4d5d1734ccb0734ab2f5af
[INFO] running `Command { std: "docker" "start" "-a" "d9d657d1f47a3a1dfbfc64892d849d2e8d6d90437c4d5d1734ccb0734ab2f5af", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking debug_tree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.12
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stdout] warning: unused imports: `max` and `min`
[INFO] [stdout]  --> src/test.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use std::cmp::{max, min};
[INFO] [stdout]   |                    ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.95s
[INFO] running `Command { std: "docker" "inspect" "d9d657d1f47a3a1dfbfc64892d849d2e8d6d90437c4d5d1734ccb0734ab2f5af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9d657d1f47a3a1dfbfc64892d849d2e8d6d90437c4d5d1734ccb0734ab2f5af", kill_on_drop: false }`
[INFO] [stdout] d9d657d1f47a3a1dfbfc64892d849d2e8d6d90437c4d5d1734ccb0734ab2f5af