[INFO] fetching crate pack_it_up 1.1.0...
[INFO] testing pack_it_up-1.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate pack_it_up 1.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate pack_it_up 1.1.0
[INFO] finished tweaking crates.io crate pack_it_up 1.1.0
[INFO] tweaked toml for crates.io crate pack_it_up 1.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pack_it_up 1.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 825506dc1a44c32274a3e80cebc315f60619f69c939b0a095d693e794e20d542
[INFO] running `Command { std: "docker" "start" "-a" "825506dc1a44c32274a3e80cebc315f60619f69c939b0a095d693e794e20d542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "825506dc1a44c32274a3e80cebc315f60619f69c939b0a095d693e794e20d542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "825506dc1a44c32274a3e80cebc315f60619f69c939b0a095d693e794e20d542", kill_on_drop: false }`
[INFO] [stdout] 825506dc1a44c32274a3e80cebc315f60619f69c939b0a095d693e794e20d542
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33f7d9cb723f46f9ba9119cb4d381bcf394019c6bf98581c5efd707fd35224a1
[INFO] running `Command { std: "docker" "start" "-a" "33f7d9cb723f46f9ba9119cb4d381bcf394019c6bf98581c5efd707fd35224a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling pack_it_up v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "33f7d9cb723f46f9ba9119cb4d381bcf394019c6bf98581c5efd707fd35224a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33f7d9cb723f46f9ba9119cb4d381bcf394019c6bf98581c5efd707fd35224a1", kill_on_drop: false }`
[INFO] [stdout] 33f7d9cb723f46f9ba9119cb4d381bcf394019c6bf98581c5efd707fd35224a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0663f3ee2082b0f4689084d419127a81cf43e4675873a92627cecce41c93091d
[INFO] running `Command { std: "docker" "start" "-a" "0663f3ee2082b0f4689084d419127a81cf43e4675873a92627cecce41c93091d", kill_on_drop: false }`
[INFO] [stderr]    Compiling pack_it_up v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/online/next_k_fit.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |         let mut bins = packer.pack_all(test_data.into_iter()).unwrap();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "0663f3ee2082b0f4689084d419127a81cf43e4675873a92627cecce41c93091d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0663f3ee2082b0f4689084d419127a81cf43e4675873a92627cecce41c93091d", kill_on_drop: false }`
[INFO] [stdout] 0663f3ee2082b0f4689084d419127a81cf43e4675873a92627cecce41c93091d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ec56acd3353a683e032a4616a5b9d871a9e5c42935779689760333818f01b44b
[INFO] running `Command { std: "docker" "start" "-a" "ec56acd3353a683e032a4616a5b9d871a9e5c42935779689760333818f01b44b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/online/next_k_fit.rs:200:13
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let mut bins = packer.pack_all(test_data.into_iter()).unwrap();
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `pack_it_up` (lib test) generated 1 warning (run `cargo fix --lib -p pack_it_up --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pack_it_up-3b083c55b603039e)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test offline::first_fit_decreasing::tests::it_works ... ok
[INFO] [stdout] test online::first_fit::tests::it_works_by_key ... ok
[INFO] [stdout] test online::next_k_fit::tests::empty_input_returns_no_bins ... ok
[INFO] [stdout] test online::first_fit::tests::it_works ... ok
[INFO] [stdout] test online::next_k_fit::tests::test_dataset_a_k1_seq ... ok
[INFO] [stdout] test wrapper::tests::check_size_eq ... ok
[INFO] [stdout] test online::next_k_fit::tests::test_dataset_a_k2 ... ok
[INFO] [stdout] test online::next_k_fit::tests::test_dataset_a_k1 ... ok
[INFO] [stdout] test wrapper::tests::check_size_when_combining ... ok
[INFO] [stdout] test offline::first_fit_decreasing::tests::it_works_by_key ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pack_it_up
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.52s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ec56acd3353a683e032a4616a5b9d871a9e5c42935779689760333818f01b44b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec56acd3353a683e032a4616a5b9d871a9e5c42935779689760333818f01b44b", kill_on_drop: false }`
[INFO] [stdout] ec56acd3353a683e032a4616a5b9d871a9e5c42935779689760333818f01b44b