[INFO] fetching crate sparse_linear_assignment 0.1.5...
[INFO] testing sparse_linear_assignment-0.1.5 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate sparse_linear_assignment 0.1.5 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate sparse_linear_assignment 0.1.5
[INFO] finished tweaking crates.io crate sparse_linear_assignment 0.1.5
[INFO] tweaked toml for crates.io crate sparse_linear_assignment 0.1.5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sparse_linear_assignment 0.1.5 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 106 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rand_chacha v0.3.1 (available: v0.9.0)
[INFO] [stderr]       Adding rand_distr v0.4.3 (available: v0.5.1)
[INFO] [stderr]       Adding tracing-subscriber v0.2.25 (available: v0.3.20)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ec93746b5641dfc784316d29653908a8dbfb47ea6475059575e378a4a33d97b
[INFO] running `Command { std: "docker" "start" "-a" "6ec93746b5641dfc784316d29653908a8dbfb47ea6475059575e378a4a33d97b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ec93746b5641dfc784316d29653908a8dbfb47ea6475059575e378a4a33d97b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ec93746b5641dfc784316d29653908a8dbfb47ea6475059575e378a4a33d97b", kill_on_drop: false }`
[INFO] [stdout] 6ec93746b5641dfc784316d29653908a8dbfb47ea6475059575e378a4a33d97b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d892e9b5844f3d5935ee5ede489eb0b4e9e4ae1f98dd35bd52147b380bc13da
[INFO] running `Command { std: "docker" "start" "-a" "4d892e9b5844f3d5935ee5ede489eb0b4e9e4ae1f98dd35bd52147b380bc13da", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling tracing-log v0.1.4
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling tracing-serde v0.1.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tracing-subscriber v0.2.25
[INFO] [stderr]    Compiling sparse_linear_assignment v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.02s
[INFO] running `Command { std: "docker" "inspect" "4d892e9b5844f3d5935ee5ede489eb0b4e9e4ae1f98dd35bd52147b380bc13da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d892e9b5844f3d5935ee5ede489eb0b4e9e4ae1f98dd35bd52147b380bc13da", kill_on_drop: false }`
[INFO] [stdout] 4d892e9b5844f3d5935ee5ede489eb0b4e9e4ae1f98dd35bd52147b380bc13da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c31081619720c2789f64af32f2cf130fa3d49bb8a810a9cda14d8740c64ead37
[INFO] running `Command { std: "docker" "start" "-a" "c31081619720c2789f64af32f2cf130fa3d49bb8a810a9cda14d8740c64ead37", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling generic-tests v0.1.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling reservoir-sampling v0.5.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling sparse_linear_assignment v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/solver.rs:401:57
[INFO] [stdout]     |
[INFO] [stdout] 401 |                     let values = row_ref.iter().map(|v| ((*v) as f64)).collect::<Vec<_>>();
[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] 401 -                     let values = row_ref.iter().map(|v| ((*v) as f64)).collect::<Vec<_>>();
[INFO] [stdout] 401 +                     let values = row_ref.iter().map(|v| (*v) as f64 ).collect::<Vec<_>>();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.04s
[INFO] running `Command { std: "docker" "inspect" "c31081619720c2789f64af32f2cf130fa3d49bb8a810a9cda14d8740c64ead37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c31081619720c2789f64af32f2cf130fa3d49bb8a810a9cda14d8740c64ead37", kill_on_drop: false }`
[INFO] [stdout] c31081619720c2789f64af32f2cf130fa3d49bb8a810a9cda14d8740c64ead37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 966339abfddd344a48c78e9081152bdebae9dca0de841693a761ebaedb79320f
[INFO] running `Command { std: "docker" "start" "-a" "966339abfddd344a48c78e9081152bdebae9dca0de841693a761ebaedb79320f", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/solver.rs:401:57
[INFO] [stderr]     |
[INFO] [stderr] 401 |                     let values = row_ref.iter().map(|v| ((*v) as f64)).collect::<Vec<_>>();
[INFO] [stderr]     |                                                         ^           ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 401 -                     let values = row_ref.iter().map(|v| ((*v) as f64)).collect::<Vec<_>>();
[INFO] [stderr] 401 +                     let values = row_ref.iter().map(|v| (*v) as f64 ).collect::<Vec<_>>();
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `sparse_linear_assignment` (lib test) generated 1 warning (run `cargo fix --lib -p sparse_linear_assignment --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sparse_linear_assignment-0a9a4fbb040c3c7b)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test solver::tests::forwardauction::test_fixed_cases ... ok
[INFO] [stdout] test solver::tests::forwardauction::test_random_solve_small ... ok
[INFO] [stdout] test solver::tests::khosla::test_fixed_cases ... ok
[INFO] [stdout] test symmetric::tests::test_push_all_left ... ok
[INFO] [stdout] test solver::tests::khosla::test_random_solve_small ... ok
[INFO] [stdout] test solver::tests::khosla::test_random_no_perfect_matching ... ok
[INFO] [stdout] test symmetric::tests::test_cumulative_idx_diff ... ok
[INFO] [stdout] test solver::tests::forwardauction::test_random_large ... ok
[INFO] [stdout] test solver::tests::khosla::test_random_large ... ok
[INFO] [stdout] test solver::tests::forwardauction::test_random_no_perfect_matching ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sparse_linear_assignment
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/ksparse.rs - ksparse::KhoslaSolver (line 22) ... ok
[INFO] [stdout] test src/symmetric.rs - symmetric::ForwardAuctionSolver (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "966339abfddd344a48c78e9081152bdebae9dca0de841693a761ebaedb79320f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "966339abfddd344a48c78e9081152bdebae9dca0de841693a761ebaedb79320f", kill_on_drop: false }`
[INFO] [stdout] 966339abfddd344a48c78e9081152bdebae9dca0de841693a761ebaedb79320f