[INFO] fetching crate pack_it_up 1.1.0...
[INFO] testing pack_it_up-1.1.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate pack_it_up 1.1.0 into /workspace/builds/worker-2-tc2/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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pack_it_up 1.1.0 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]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c847ede01b6d34fd17b1749bde51de4dda3f9ea9d43eb0a789a11f7dd633e158
[INFO] running `Command { std: "docker" "start" "-a" "c847ede01b6d34fd17b1749bde51de4dda3f9ea9d43eb0a789a11f7dd633e158", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c847ede01b6d34fd17b1749bde51de4dda3f9ea9d43eb0a789a11f7dd633e158", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c847ede01b6d34fd17b1749bde51de4dda3f9ea9d43eb0a789a11f7dd633e158", kill_on_drop: false }`
[INFO] [stdout] c847ede01b6d34fd17b1749bde51de4dda3f9ea9d43eb0a789a11f7dd633e158
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] bb1d5cb346556e6ec8450a715e297650687748e328e1a8245ae19523d728bb1c
[INFO] running `Command { std: "docker" "start" "-a" "bb1d5cb346556e6ec8450a715e297650687748e328e1a8245ae19523d728bb1c", 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" "bb1d5cb346556e6ec8450a715e297650687748e328e1a8245ae19523d728bb1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb1d5cb346556e6ec8450a715e297650687748e328e1a8245ae19523d728bb1c", kill_on_drop: false }`
[INFO] [stdout] bb1d5cb346556e6ec8450a715e297650687748e328e1a8245ae19523d728bb1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 9c7536ed50011b7eedebe536434fbcbe79a7e60361645856134cc9c90c0820b3
[INFO] running `Command { std: "docker" "start" "-a" "9c7536ed50011b7eedebe536434fbcbe79a7e60361645856134cc9c90c0820b3", 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 0.71s
[INFO] running `Command { std: "docker" "inspect" "9c7536ed50011b7eedebe536434fbcbe79a7e60361645856134cc9c90c0820b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c7536ed50011b7eedebe536434fbcbe79a7e60361645856134cc9c90c0820b3", kill_on_drop: false }`
[INFO] [stdout] 9c7536ed50011b7eedebe536434fbcbe79a7e60361645856134cc9c90c0820b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a521a3874e7655b3bdff27fa9dd5664787ac55de072f56ce7568e74bb8246a05
[INFO] running `Command { std: "docker" "start" "-a" "a521a3874e7655b3bdff27fa9dd5664787ac55de072f56ce7568e74bb8246a05", 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-7795d754f43f831e)
[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 ... ok
[INFO] [stdout] test online::first_fit::tests::it_works_by_key ... ok
[INFO] [stdout] test online::next_k_fit::tests::test_dataset_a_k1 ... ok
[INFO] [stdout] test online::next_k_fit::tests::test_dataset_a_k1_seq ... ok
[INFO] [stdout] test online::next_k_fit::tests::test_dataset_a_k2 ... ok
[INFO] [stdout] test wrapper::tests::check_size_when_combining ... ok
[INFO] [stdout] test online::next_k_fit::tests::empty_input_returns_no_bins ... ok
[INFO] [stdout] test offline::first_fit_decreasing::tests::it_works_by_key ... ok
[INFO] [stdout] test wrapper::tests::check_size_eq ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[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 0.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a521a3874e7655b3bdff27fa9dd5664787ac55de072f56ce7568e74bb8246a05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a521a3874e7655b3bdff27fa9dd5664787ac55de072f56ce7568e74bb8246a05", kill_on_drop: false }`
[INFO] [stdout] a521a3874e7655b3bdff27fa9dd5664787ac55de072f56ce7568e74bb8246a05