[INFO] fetching crate skillratings 0.27.1...
[INFO] checking skillratings-0.27.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate skillratings 0.27.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate skillratings 0.27.1
[INFO] finished tweaking crates.io crate skillratings 0.27.1
[INFO] tweaked toml for crates.io crate skillratings 0.27.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate skillratings 0.27.1 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 80 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c67fc4efd2b304a9e35ea69572d7b7ee92be067bb42ffe74be632f9c453e17c7
[INFO] running `Command { std: "docker" "start" "-a" "c67fc4efd2b304a9e35ea69572d7b7ee92be067bb42ffe74be632f9c453e17c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c67fc4efd2b304a9e35ea69572d7b7ee92be067bb42ffe74be632f9c453e17c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c67fc4efd2b304a9e35ea69572d7b7ee92be067bb42ffe74be632f9c453e17c7", kill_on_drop: false }`
[INFO] [stdout] c67fc4efd2b304a9e35ea69572d7b7ee92be067bb42ffe74be632f9c453e17c7
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f32c421cd062b111e5f3be5a9fa42cd001ba794b7bb742dd16b6831fad23deb
[INFO] running `Command { std: "docker" "start" "-a" "5f32c421cd062b111e5f3be5a9fa42cd001ba794b7bb742dd16b6831fad23deb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking regex-syntax v0.8.6
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking clap_builder v4.5.47
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking skillratings v0.27.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]    --> src/trueskill/matrix.rs:151:17
[INFO] [stdout]     |
[INFO] [stdout] 151 |         assert!((det != 0.0), "Matrix is not invertible");
[INFO] [stdout]     |                 ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 151 -         assert!((det != 0.0), "Matrix is not invertible");
[INFO] [stdout] 151 +         assert!( det != 0.0, "Matrix is not invertible");
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]     --> src/trueskill/mod.rs:1645:13
[INFO] [stdout]      |
[INFO] [stdout] 1645 |     assert!((min_delta > 0.0), "min_delta must be greater than 0");
[INFO] [stdout]      |             ^               ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1645 -     assert!((min_delta > 0.0), "min_delta must be greater than 0");
[INFO] [stdout] 1645 +     assert!( min_delta > 0.0, "min_delta must be greater than 0");
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to provided trait methods
[INFO] [stdout]    --> src/lib.rs:446:5
[INFO] [stdout]     |
[INFO] [stdout] 446 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to provided trait methods
[INFO] [stdout]    --> src/lib.rs:454:5
[INFO] [stdout]     |
[INFO] [stdout] 454 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking clap v4.5.47
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.143
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]    --> src/trueskill/matrix.rs:151:17
[INFO] [stdout]     |
[INFO] [stdout] 151 |         assert!((det != 0.0), "Matrix is not invertible");
[INFO] [stdout]     |                 ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 151 -         assert!((det != 0.0), "Matrix is not invertible");
[INFO] [stdout] 151 +         assert!( det != 0.0, "Matrix is not invertible");
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]     --> src/trueskill/mod.rs:1645:13
[INFO] [stdout]      |
[INFO] [stdout] 1645 |     assert!((min_delta > 0.0), "min_delta must be greater than 0");
[INFO] [stdout]      |             ^               ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1645 -     assert!((min_delta > 0.0), "min_delta must be greater than 0");
[INFO] [stdout] 1645 +     assert!( min_delta > 0.0, "min_delta must be greater than 0");
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to provided trait methods
[INFO] [stdout]    --> src/lib.rs:446:5
[INFO] [stdout]     |
[INFO] [stdout] 446 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to provided trait methods
[INFO] [stdout]    --> src/lib.rs:454:5
[INFO] [stdout]     |
[INFO] [stdout] 454 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.91s
[INFO] running `Command { std: "docker" "inspect" "5f32c421cd062b111e5f3be5a9fa42cd001ba794b7bb742dd16b6831fad23deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f32c421cd062b111e5f3be5a9fa42cd001ba794b7bb742dd16b6831fad23deb", kill_on_drop: false }`
[INFO] [stdout] 5f32c421cd062b111e5f3be5a9fa42cd001ba794b7bb742dd16b6831fad23deb