[INFO] fetching crate rslint_regex 0.2.1...
[INFO] checking rslint_regex-0.2.1 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate rslint_regex 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rslint_regex 0.2.1 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rslint_regex 0.2.1
[INFO] finished tweaking crates.io crate rslint_regex 0.2.1
[INFO] tweaked toml for crates.io crate rslint_regex 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rslint_regex 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded triomphe v0.1.2
[INFO] [stderr]   Downloaded smol_str v0.1.17
[INFO] [stderr]   Downloaded yansi-term v0.1.2
[INFO] [stderr]   Downloaded rslint_errors v0.1.2
[INFO] [stderr]   Downloaded text-diff v0.4.0
[INFO] [stderr]   Downloaded rslint_text_edit v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94dfc797d76d09c105610548cacbc0e1f8ecd01c9928ed5ecaf2c05bf9ef4f61
[INFO] running `Command { std: "docker" "start" "-a" "94dfc797d76d09c105610548cacbc0e1f8ecd01c9928ed5ecaf2c05bf9ef4f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94dfc797d76d09c105610548cacbc0e1f8ecd01c9928ed5ecaf2c05bf9ef4f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94dfc797d76d09c105610548cacbc0e1f8ecd01c9928ed5ecaf2c05bf9ef4f61", kill_on_drop: false }`
[INFO] [stdout] 94dfc797d76d09c105610548cacbc0e1f8ecd01c9928ed5ecaf2c05bf9ef4f61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bff990cda52c6f9df586641ad3b78ed75cf535c6e7c2f60ce8651cf2f064d088
[INFO] running `Command { std: "docker" "start" "-a" "bff990cda52c6f9df586641ad3b78ed75cf535c6e7c2f60ce8651cf2f064d088", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rslint_regex v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stdout] warning: unused import: `CharacterClassMember`
[INFO] [stdout]  --> src/parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     CharacterClassMember, Error, Result, Span,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking tinytemplate v1.2.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] warning: unused import: `CharacterClassMember`
[INFO] [stdout]  --> src/parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     CharacterClassMember, Error, Result, Span,
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.09s
[INFO] running `Command { std: "docker" "inspect" "bff990cda52c6f9df586641ad3b78ed75cf535c6e7c2f60ce8651cf2f064d088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bff990cda52c6f9df586641ad3b78ed75cf535c6e7c2f60ce8651cf2f064d088", kill_on_drop: false }`
[INFO] [stdout] bff990cda52c6f9df586641ad3b78ed75cf535c6e7c2f60ce8651cf2f064d088