[INFO] fetching crate duplicate_destroyer 0.0.8...
[INFO] checking duplicate_destroyer-0.0.8 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate duplicate_destroyer 0.0.8 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate duplicate_destroyer 0.0.8
[INFO] finished tweaking crates.io crate duplicate_destroyer 0.0.8
[INFO] tweaked toml for crates.io crate duplicate_destroyer 0.0.8 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate duplicate_destroyer 0.0.8 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate duplicate_destroyer 0.0.8 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded keccak v0.1.4
[INFO] [stderr]   Downloaded id_tree v1.8.0
[INFO] [stderr]   Downloaded copy_confirmer v0.0.3
[INFO] [stderr]   Downloaded syn v2.0.41
[INFO] [stderr]   Downloaded minus v5.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13f648bfaf93622c304b326f3838fbf80eb66e60ac6d78f573f7772a4f76b49f
[INFO] running `Command { std: "docker" "start" "-a" "13f648bfaf93622c304b326f3838fbf80eb66e60ac6d78f573f7772a4f76b49f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13f648bfaf93622c304b326f3838fbf80eb66e60ac6d78f573f7772a4f76b49f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13f648bfaf93622c304b326f3838fbf80eb66e60ac6d78f573f7772a4f76b49f", kill_on_drop: false }`
[INFO] [stdout] 13f648bfaf93622c304b326f3838fbf80eb66e60ac6d78f573f7772a4f76b49f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb5729c1a7d8210a50af2c33ed89308c714ea30e6497f8f6c43db846bf88ecfb
[INFO] running `Command { std: "docker" "start" "-a" "bb5729c1a7d8210a50af2c33ed89308c714ea30e6497f8f6c43db846bf88ecfb", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking termcolor v1.4.0
[INFO] [stderr]     Checking keccak v0.1.4
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking env_logger v0.10.1
[INFO] [stderr]     Checking id_tree v1.8.0
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking mockall v0.11.4
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking serde v1.0.193
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking duplicate_destroyer v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]  --> tests/library_tests.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::process::Command;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/lib_bench.rs:55:1
[INFO] [stdout]    |
[INFO] [stdout] 55 | criterion_group!(benches, bench_compare_two_identical_dirs);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 | let _ = criterion_group!(benches, bench_compare_two_identical_dirs);
[INFO] [stdout]    | +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.07s
[INFO] running `Command { std: "docker" "inspect" "bb5729c1a7d8210a50af2c33ed89308c714ea30e6497f8f6c43db846bf88ecfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb5729c1a7d8210a50af2c33ed89308c714ea30e6497f8f6c43db846bf88ecfb", kill_on_drop: false }`
[INFO] [stdout] bb5729c1a7d8210a50af2c33ed89308c714ea30e6497f8f6c43db846bf88ecfb