[INFO] fetching crate duplicate_destroyer 0.0.8...
[INFO] checking duplicate_destroyer-0.0.8 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate duplicate_destroyer 0.0.8 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate duplicate_destroyer 0.0.8 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-4-tc2/source/Cargo.toml
[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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4db2a4b1a593109018fc28c4231873565a8c6715a9c120a8199e71704e720805
[INFO] running `Command { std: "docker" "start" "-a" "4db2a4b1a593109018fc28c4231873565a8c6715a9c120a8199e71704e720805", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4db2a4b1a593109018fc28c4231873565a8c6715a9c120a8199e71704e720805", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4db2a4b1a593109018fc28c4231873565a8c6715a9c120a8199e71704e720805", kill_on_drop: false }`
[INFO] [stdout] 4db2a4b1a593109018fc28c4231873565a8c6715a9c120a8199e71704e720805
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 424b9003e10a172a91a6648a68384036b8a84421b0a6b98fdbbe34e84a273626
[INFO] running `Command { std: "docker" "start" "-a" "424b9003e10a172a91a6648a68384036b8a84421b0a6b98fdbbe34e84a273626", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]     Checking either v1.9.0
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[INFO] [stderr]    Compiling num-traits v0.2.17
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[INFO] [stderr]     Checking itertools v0.10.5
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[INFO] [stderr]     Checking textwrap v0.11.0
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[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking num_cpus v1.16.0
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[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking oorandom v11.1.3
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[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking predicates v2.1.5
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[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]     Checking mockall v0.11.4
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[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)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::criterion_group` which comes from the expansion of the macro `criterion_group` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.48s
[INFO] running `Command { std: "docker" "inspect" "424b9003e10a172a91a6648a68384036b8a84421b0a6b98fdbbe34e84a273626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "424b9003e10a172a91a6648a68384036b8a84421b0a6b98fdbbe34e84a273626", kill_on_drop: false }`
[INFO] [stdout] 424b9003e10a172a91a6648a68384036b8a84421b0a6b98fdbbe34e84a273626