[INFO] fetching crate mutexpect 0.2.7...
[INFO] building mutexpect-0.2.7 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate mutexpect 0.2.7 into /workspace/builds/worker-0-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mutexpect 0.2.7 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tabfile v0.2.1
[INFO] [stderr]   Downloaded pattern_partition_prediction v0.1.4
[INFO] [stderr]   Downloaded twobit v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a74831c7d2d6c63b8188c714c659960c494f7380504dcd2488fa4714cef4cae
[INFO] running `Command { std: "docker" "start" "-a" "2a74831c7d2d6c63b8188c714c659960c494f7380504dcd2488fa4714cef4cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a74831c7d2d6c63b8188c714c659960c494f7380504dcd2488fa4714cef4cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a74831c7d2d6c63b8188c714c659960c494f7380504dcd2488fa4714cef4cae", kill_on_drop: false }`
[INFO] [stdout] 2a74831c7d2d6c63b8188c714c659960c494f7380504dcd2488fa4714cef4cae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c02b762b19f5e5777a8be033205134f56e43858d26dfb1742702e45d0802d9ec
[INFO] running `Command { std: "docker" "start" "-a" "c02b762b19f5e5777a8be033205134f56e43858d26dfb1742702e45d0802d9ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling tabfile v0.2.1
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]    Compiling twobit v0.1.1
[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 1.38s
[INFO] running `Command { std: "docker" "inspect" "c02b762b19f5e5777a8be033205134f56e43858d26dfb1742702e45d0802d9ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c02b762b19f5e5777a8be033205134f56e43858d26dfb1742702e45d0802d9ec", kill_on_drop: false }`
[INFO] [stdout] c02b762b19f5e5777a8be033205134f56e43858d26dfb1742702e45d0802d9ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c438335d47fee21a0f765f6c22585f909c3500b1f32fa0e677c6f866c7f5322
[INFO] running `Command { std: "docker" "start" "-a" "3c438335d47fee21a0f765f6c22585f909c3500b1f32fa0e677c6f866c7f5322", kill_on_drop: false }`
[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] [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 1.05s
[INFO] running `Command { std: "docker" "inspect" "3c438335d47fee21a0f765f6c22585f909c3500b1f32fa0e677c6f866c7f5322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c438335d47fee21a0f765f6c22585f909c3500b1f32fa0e677c6f866c7f5322", kill_on_drop: false }`
[INFO] [stdout] 3c438335d47fee21a0f765f6c22585f909c3500b1f32fa0e677c6f866c7f5322