[INFO] fetching crate duplicate_destroyer 0.0.8...
[INFO] checking duplicate_destroyer-0.0.8 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate duplicate_destroyer 0.0.8 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate duplicate_destroyer 0.0.8 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-tc1/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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f59cb630e6a20489eb088cff6105f12f438bd970710e088f535aa16705435219
[INFO] running `Command { std: "docker" "start" "-a" "f59cb630e6a20489eb088cff6105f12f438bd970710e088f535aa16705435219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f59cb630e6a20489eb088cff6105f12f438bd970710e088f535aa16705435219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f59cb630e6a20489eb088cff6105f12f438bd970710e088f535aa16705435219", kill_on_drop: false }`
[INFO] [stdout] f59cb630e6a20489eb088cff6105f12f438bd970710e088f535aa16705435219
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 123d36d84619befab132083061099ce4222a194d63ea654abbb263af53db974c
[INFO] running `Command { std: "docker" "start" "-a" "123d36d84619befab132083061099ce4222a194d63ea654abbb263af53db974c", kill_on_drop: false }`
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[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stderr]     Checking env_logger v0.10.1
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[INFO] [stderr]     Checking serde_cbor v0.11.2
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[INFO] [stderr]     Checking mockall v0.11.4
[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: 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.51s
[INFO] running `Command { std: "docker" "inspect" "123d36d84619befab132083061099ce4222a194d63ea654abbb263af53db974c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "123d36d84619befab132083061099ce4222a194d63ea654abbb263af53db974c", kill_on_drop: false }`
[INFO] [stdout] 123d36d84619befab132083061099ce4222a194d63ea654abbb263af53db974c