[INFO] fetching crate mutexpect 0.2.7...
[INFO] building mutexpect-0.2.7 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate mutexpect 0.2.7 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate mutexpect 0.2.7
[INFO] finished tweaking crates.io crate mutexpect 0.2.7
[INFO] tweaked toml for crates.io crate mutexpect 0.2.7 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mutexpect 0.2.7 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] [stderr]       Adding twobit v0.1.1 (available: v0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3204d2a06e1bfed1a60334bcd6ada4a9c76691b476fa912ed09cf3266e6e0cd8
[INFO] running `Command { std: "docker" "start" "-a" "3204d2a06e1bfed1a60334bcd6ada4a9c76691b476fa912ed09cf3266e6e0cd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3204d2a06e1bfed1a60334bcd6ada4a9c76691b476fa912ed09cf3266e6e0cd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3204d2a06e1bfed1a60334bcd6ada4a9c76691b476fa912ed09cf3266e6e0cd8", kill_on_drop: false }`
[INFO] [stdout] 3204d2a06e1bfed1a60334bcd6ada4a9c76691b476fa912ed09cf3266e6e0cd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c149e05f0a8da2b96660217cb4a8089a0eaac8d082b0bb08f1b9e817bcdb513
[INFO] running `Command { std: "docker" "start" "-a" "7c149e05f0a8da2b96660217cb4a8089a0eaac8d082b0bb08f1b9e817bcdb513", kill_on_drop: false }`
[INFO] [stderr]    Compiling tabfile v0.2.1
[INFO] [stderr]    Compiling twobit v0.1.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]    Compiling pattern_partition_prediction v0.1.4
[INFO] [stderr]    Compiling mutexpect v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/point_mutation_classifier.rs:287:26
[INFO] [stdout]     |
[INFO] [stdout] 287 |                     0 => (middle_index - 2..middle_index + 0 + 1),
[INFO] [stdout]     |                          ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 287 -                     0 => (middle_index - 2..middle_index + 0 + 1),
[INFO] [stdout] 287 +                     0 => middle_index - 2..middle_index + 0 + 1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/point_mutation_classifier.rs:288:26
[INFO] [stdout]     |
[INFO] [stdout] 288 |                     1 => (middle_index - 1..middle_index + 1 + 1),
[INFO] [stdout]     |                          ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 288 -                     1 => (middle_index - 1..middle_index + 1 + 1),
[INFO] [stdout] 288 +                     1 => middle_index - 1..middle_index + 1 + 1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/point_mutation_classifier.rs:289:26
[INFO] [stdout]     |
[INFO] [stdout] 289 |                     2 => (middle_index - 0..middle_index + 2 + 1),
[INFO] [stdout]     |                          ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 289 -                     2 => (middle_index - 0..middle_index + 2 + 1),
[INFO] [stdout] 289 +                     2 => middle_index - 0..middle_index + 2 + 1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SetupError` is never constructed
[INFO] [stdout]    --> src/point_mutation_classifier.rs:353:12
[INFO] [stdout]     |
[INFO] [stdout] 353 | pub struct SetupError {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "7c149e05f0a8da2b96660217cb4a8089a0eaac8d082b0bb08f1b9e817bcdb513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c149e05f0a8da2b96660217cb4a8089a0eaac8d082b0bb08f1b9e817bcdb513", kill_on_drop: false }`
[INFO] [stdout] 7c149e05f0a8da2b96660217cb4a8089a0eaac8d082b0bb08f1b9e817bcdb513
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efd92121a4faa2b6abe614204b14a95f9a8b737cbfbde055c13cd4e0c0d783f3
[INFO] running `Command { std: "docker" "start" "-a" "efd92121a4faa2b6abe614204b14a95f9a8b737cbfbde055c13cd4e0c0d783f3", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/point_mutation_classifier.rs:287:26
[INFO] [stdout]     |
[INFO] [stdout] 287 |                     0 => (middle_index - 2..middle_index + 0 + 1),
[INFO] [stdout]     |                          ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 287 -                     0 => (middle_index - 2..middle_index + 0 + 1),
[INFO] [stdout] 287 +                     0 => middle_index - 2..middle_index + 0 + 1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/point_mutation_classifier.rs:288:26
[INFO] [stdout]     |
[INFO] [stdout] 288 |                     1 => (middle_index - 1..middle_index + 1 + 1),
[INFO] [stdout]     |                          ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 288 -                     1 => (middle_index - 1..middle_index + 1 + 1),
[INFO] [stdout] 288 +                     1 => middle_index - 1..middle_index + 1 + 1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/point_mutation_classifier.rs:289:26
[INFO] [stdout]     |
[INFO] [stdout] 289 |                     2 => (middle_index - 0..middle_index + 2 + 1),
[INFO] [stdout]     |                          ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 289 -                     2 => (middle_index - 0..middle_index + 2 + 1),
[INFO] [stdout] 289 +                     2 => middle_index - 0..middle_index + 2 + 1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SetupError` is never constructed
[INFO] [stdout]    --> src/point_mutation_classifier.rs:353:12
[INFO] [stdout]     |
[INFO] [stdout] 353 | pub struct SetupError {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mutexpect v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/point_mutation_classifier.rs:287:26
[INFO] [stdout]     |
[INFO] [stdout] 287 |                     0 => (middle_index - 2..middle_index + 0 + 1),
[INFO] [stdout]     |                          ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 287 -                     0 => (middle_index - 2..middle_index + 0 + 1),
[INFO] [stdout] 287 +                     0 => middle_index - 2..middle_index + 0 + 1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/point_mutation_classifier.rs:288:26
[INFO] [stdout]     |
[INFO] [stdout] 288 |                     1 => (middle_index - 1..middle_index + 1 + 1),
[INFO] [stdout]     |                          ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 288 -                     1 => (middle_index - 1..middle_index + 1 + 1),
[INFO] [stdout] 288 +                     1 => middle_index - 1..middle_index + 1 + 1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/point_mutation_classifier.rs:289:26
[INFO] [stdout]     |
[INFO] [stdout] 289 |                     2 => (middle_index - 0..middle_index + 2 + 1),
[INFO] [stdout]     |                          ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 289 -                     2 => (middle_index - 0..middle_index + 2 + 1),
[INFO] [stdout] 289 +                     2 => middle_index - 0..middle_index + 2 + 1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SetupError` is never constructed
[INFO] [stdout]    --> src/point_mutation_classifier.rs:353:12
[INFO] [stdout]     |
[INFO] [stdout] 353 | pub struct SetupError {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "efd92121a4faa2b6abe614204b14a95f9a8b737cbfbde055c13cd4e0c0d783f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efd92121a4faa2b6abe614204b14a95f9a8b737cbfbde055c13cd4e0c0d783f3", kill_on_drop: false }`
[INFO] [stdout] efd92121a4faa2b6abe614204b14a95f9a8b737cbfbde055c13cd4e0c0d783f3