[INFO] fetching crate multimap 0.8.3...
[INFO] testing multimap-0.8.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate multimap 0.8.3 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate multimap 0.8.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate multimap 0.8.3
[INFO] finished tweaking crates.io crate multimap 0.8.3
[INFO] tweaked toml for crates.io crate multimap 0.8.3 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a2773aa5ad65d569ebcb6970f6ddbe30c156083f1ba01e2802881451c754810
[INFO] running `Command { std: "docker" "start" "-a" "9a2773aa5ad65d569ebcb6970f6ddbe30c156083f1ba01e2802881451c754810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a2773aa5ad65d569ebcb6970f6ddbe30c156083f1ba01e2802881451c754810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a2773aa5ad65d569ebcb6970f6ddbe30c156083f1ba01e2802881451c754810", kill_on_drop: false }`
[INFO] [stdout] 9a2773aa5ad65d569ebcb6970f6ddbe30c156083f1ba01e2802881451c754810
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6e1269c9bc8c1a29ac09f4216d6085a21893d28dc398ef06e1eaca33eb7b92d
[INFO] running `Command { std: "docker" "start" "-a" "c6e1269c9bc8c1a29ac09f4216d6085a21893d28dc398ef06e1eaca33eb7b92d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling multimap v0.8.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.78s
[INFO] running `Command { std: "docker" "inspect" "c6e1269c9bc8c1a29ac09f4216d6085a21893d28dc398ef06e1eaca33eb7b92d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6e1269c9bc8c1a29ac09f4216d6085a21893d28dc398ef06e1eaca33eb7b92d", kill_on_drop: false }`
[INFO] [stdout] c6e1269c9bc8c1a29ac09f4216d6085a21893d28dc398ef06e1eaca33eb7b92d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17c3d61ef7228a3f7b57cc6c1891814df68b8884c2fb1bae65a8416a87c3b1db
[INFO] running `Command { std: "docker" "start" "-a" "17c3d61ef7228a3f7b57cc6c1891814df68b8884c2fb1bae65a8416a87c3b1db", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_test v1.0.130
[INFO] [stderr]    Compiling multimap v0.8.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:962:9
[INFO] [stdout]     |
[INFO] [stdout] 962 |         &m[&1];
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.65s
[INFO] running `Command { std: "docker" "inspect" "17c3d61ef7228a3f7b57cc6c1891814df68b8884c2fb1bae65a8416a87c3b1db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17c3d61ef7228a3f7b57cc6c1891814df68b8884c2fb1bae65a8416a87c3b1db", kill_on_drop: false }`
[INFO] [stdout] 17c3d61ef7228a3f7b57cc6c1891814df68b8884c2fb1bae65a8416a87c3b1db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7089a6acbc702e575c765e2e5c982ab9b3b05121b1f609fff7e35c6176d5f8fd
[INFO] running `Command { std: "docker" "start" "-a" "7089a6acbc702e575c765e2e5c982ab9b3b05121b1f609fff7e35c6176d5f8fd", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:962:9
[INFO] [stderr]     |
[INFO] [stderr] 962 |         &m[&1];
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `multimap` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/multimap-f44c15c81a2905fc)
[INFO] [stdout] 
[INFO] [stdout] running 48 tests
[INFO] [stdout] test serde::tests::test_single ... ok
[INFO] [stdout] test serde::tests::test_empty ... ok
[INFO] [stdout] test tests::capacity ... ok
[INFO] [stdout] test tests::clear ... ok
[INFO] [stdout] test serde::tests::test_multiple ... ok
[INFO] [stdout] test tests::create ... ok
[INFO] [stdout] test tests::get_not_present ... ok
[INFO] [stdout] test tests::get_vec_not_present ... ok
[INFO] [stdout] test tests::contains_key_true ... ok
[INFO] [stdout] test tests::contains_key_false ... ok
[INFO] [stdout] test tests::insert ... ok
[INFO] [stdout] test tests::insert_many_again ... ok
[INFO] [stdout] test tests::index ... ok
[INFO] [stdout] test tests::insert_existing ... ok
[INFO] [stdout] test tests::insert_many_from_slice_again ... ok
[INFO] [stdout] test tests::insert_many ... ok
[INFO] [stdout] test tests::insert_many_from_slice ... ok
[INFO] [stdout] test tests::get_present ... ok
[INFO] [stdout] test tests::get_vec_mut ... ok
[INFO] [stdout] test tests::get_vec_present ... ok
[INFO] [stdout] test tests::intoiterator_for_mutable_reference_type ... ok
[INFO] [stdout] test tests::get_mut ... ok
[INFO] [stdout] test tests::intoiterator_for_reference_type ... ok
[INFO] [stdout] test tests::intoiterator_consuming ... ok
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::keys ... ok
[INFO] [stdout] test tests::is_empty_false ... ok
[INFO] [stdout] test tests::is_empty_true ... ok
[INFO] [stdout] test tests::len ... ok
[INFO] [stdout] test tests::remove_not_present ... ok
[INFO] [stdout] test tests::remove_present ... ok
[INFO] [stdout] test tests::retain_also_removes_empty_vector ... ok
[INFO] [stdout] test tests::test_macro ... ok
[INFO] [stdout] test tests::test_is_vec ... ok
[INFO] [stdout] test tests::test_entry ... ok
[INFO] [stdout] test tests::test_default ... ok
[INFO] [stdout] test tests::retain_removes_element ... ok
[INFO] [stdout] test tests::with_capacity ... ok
[INFO] [stdout] test tests::test_from_iterator ... ok
[INFO] [stdout] test tests::test_fmt_debug ... ok
[INFO] [stdout] test tests::test_extend_ref_hashmap ... ok
[INFO] [stdout] test tests::test_extend_consuming_multimap ... ok
[INFO] [stdout] test tests::test_extend_consuming_hashmap ... ok
[INFO] [stdout] test tests::test_eq ... ok
[INFO] [stdout] test tests::test_entry_vec ... ok
[INFO] [stdout] test tests::new ... ok
[INFO] [stdout] test tests::test_extend_ref_multimap ... ok
[INFO] [stdout] test tests::index_no_entry - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 48 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests multimap
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::with_capacity_and_hasher (line 145) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::capacity (line 427) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::contains_key (line 241) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::is_empty (line 441) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::iter_mut (line 520) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::is_vec (line 400) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::with_hasher (line 128) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::insert (line 164) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::insert_many (line 189) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::new (line 97) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::clear (line 458) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::with_capacity (line 110) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::get (line 304) ... ok
[INFO] [stdout] test src/lib.rs - multimap (line 863) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::get_mut (line 327) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::keys (line 475) ... ok
[INFO] [stdout] test src/lib.rs - (line 21) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::iter_all (line 547) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::get_vec_mut (line 374) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::retain (line 635) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::remove (line 280) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::iter_all_mut (line 570) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::get_vec (line 352) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::entry (line 599) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::len (line 260) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::insert_many_from_slice (line 214) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V, S>::iter (line 497) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.57s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7089a6acbc702e575c765e2e5c982ab9b3b05121b1f609fff7e35c6176d5f8fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7089a6acbc702e575c765e2e5c982ab9b3b05121b1f609fff7e35c6176d5f8fd", kill_on_drop: false }`
[INFO] [stdout] 7089a6acbc702e575c765e2e5c982ab9b3b05121b1f609fff7e35c6176d5f8fd