[INFO] fetching crate multimap 0.8.3...
[INFO] testing multimap-0.8.3 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate multimap 0.8.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate multimap 0.8.3 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f78977e1217b23646628221d90dbadce33fe58063580e20cea2d18101d4d231
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2f78977e1217b23646628221d90dbadce33fe58063580e20cea2d18101d4d231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f78977e1217b23646628221d90dbadce33fe58063580e20cea2d18101d4d231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f78977e1217b23646628221d90dbadce33fe58063580e20cea2d18101d4d231", kill_on_drop: false }`
[INFO] [stdout] 2f78977e1217b23646628221d90dbadce33fe58063580e20cea2d18101d4d231
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91f043f1abb844df43f35d6fd1262e5a2c0bd61bfe62860fbfbd6f03f0295774
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "91f043f1abb844df43f35d6fd1262e5a2c0bd61bfe62860fbfbd6f03f0295774", 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 6.71s
[INFO] running `Command { std: "docker" "inspect" "91f043f1abb844df43f35d6fd1262e5a2c0bd61bfe62860fbfbd6f03f0295774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91f043f1abb844df43f35d6fd1262e5a2c0bd61bfe62860fbfbd6f03f0295774", kill_on_drop: false }`
[INFO] [stdout] 91f043f1abb844df43f35d6fd1262e5a2c0bd61bfe62860fbfbd6f03f0295774
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50840ccf74f1b1acf3af735ba68718709dc09b5389ca3c9c2ec691e120907850
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "50840ccf74f1b1acf3af735ba68718709dc09b5389ca3c9c2ec691e120907850", 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]     |         ^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 962 |         let _ = &m[&1];
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "50840ccf74f1b1acf3af735ba68718709dc09b5389ca3c9c2ec691e120907850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50840ccf74f1b1acf3af735ba68718709dc09b5389ca3c9c2ec691e120907850", kill_on_drop: false }`
[INFO] [stdout] 50840ccf74f1b1acf3af735ba68718709dc09b5389ca3c9c2ec691e120907850
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f13ff729152583145834d68880bf9ab63782d7da7a6a108d9f02f644e498fa53
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f13ff729152583145834d68880bf9ab63782d7da7a6a108d9f02f644e498fa53", 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]     |         ^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 962 |         let _ = &m[&1];
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `multimap` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/multimap-e7720889655671b7)
[INFO] [stdout] running 48 tests
[INFO] [stdout] test serde::tests::test_empty ... ok
[INFO] [stdout] test tests::contains_key_false ... ok
[INFO] [stdout] test tests::contains_key_true ... ok
[INFO] [stdout] test tests::create ... ok
[INFO] [stdout] test tests::clear ... ok
[INFO] [stdout] test serde::tests::test_multiple ... ok
[INFO] [stdout] test tests::capacity ... ok
[INFO] [stdout] test serde::tests::test_single ... ok
[INFO] [stdout] test tests::get_mut ... ok
[INFO] [stdout] test tests::intoiterator_for_reference_type ... ok
[INFO] [stdout] test tests::insert_many_again ... ok
[INFO] [stdout] test tests::insert_existing ... ok
[INFO] [stdout] test tests::get_vec_not_present ... ok
[INFO] [stdout] test tests::insert_many_from_slice ... ok
[INFO] [stdout] test tests::insert_many_from_slice_again ... ok
[INFO] [stdout] test tests::insert_many ... ok
[INFO] [stdout] test tests::intoiterator_consuming ... ok
[INFO] [stdout] test tests::intoiterator_for_mutable_reference_type ... ok
[INFO] [stdout] test tests::get_not_present ... ok
[INFO] [stdout] test tests::remove_not_present ... ok
[INFO] [stdout] test tests::insert ... ok
[INFO] [stdout] test tests::get_vec_mut ... ok
[INFO] [stdout] test tests::remove_present ... ok
[INFO] [stdout] test tests::get_present ... ok
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::get_vec_present ... ok
[INFO] [stdout] test tests::retain_also_removes_empty_vector ... ok
[INFO] [stdout] test tests::is_empty_false ... ok
[INFO] [stdout] test tests::index ... ok
[INFO] [stdout] test tests::is_empty_true ... ok
[INFO] [stdout] test tests::keys ... ok
[INFO] [stdout] test tests::len ... ok
[INFO] [stdout] test tests::new ... ok
[INFO] [stdout] test tests::test_extend_consuming_hashmap ... ok
[INFO] [stdout] test tests::test_extend_ref_hashmap ... ok
[INFO] [stdout] test tests::retain_removes_element ... ok
[INFO] [stdout] test tests::test_default ... ok
[INFO] [stdout] test tests::test_entry ... ok
[INFO] [stdout] test tests::test_fmt_debug ... ok
[INFO] [stdout] test tests::test_entry_vec ... ok
[INFO] [stdout] test tests::test_eq ... ok
[INFO] [stdout] test tests::test_extend_ref_multimap ... ok
[INFO] [stdout] test tests::test_from_iterator ... ok
[INFO] [stdout] test tests::test_is_vec ... ok
[INFO] [stdout] test tests::test_macro ... ok
[INFO] [stdout] test tests::test_extend_consuming_multimap ... ok
[INFO] [stdout] test tests::with_capacity ... 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 0.13s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests multimap
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test src/lib.rs - MultiMap<K,V,S>::capacity (line 427) ... 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,S>::get_mut (line 327) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K,V,S>::clear (line 458) ... 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>::insert_many_from_slice (line 214) ... 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>::is_empty (line 441) ... 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>::iter (line 497) ... 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>::get (line 304) ... 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_vec (line 400) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K,V,S>::get_vec_mut (line 374) ... ok
[INFO] [stdout] test src/lib.rs - (line 21) ... 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>::iter_all_mut (line 570) ... ok
[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>::with_hasher (line 128) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K,V,S>::len (line 260) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K,V>::new (line 97) ... 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>::keys (line 475) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K,V,S>::remove (line 280) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K,V>::with_capacity (line 110) ... ok
[INFO] [stdout] test src/lib.rs - multimap (line 863) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 13.63s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f13ff729152583145834d68880bf9ab63782d7da7a6a108d9f02f644e498fa53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f13ff729152583145834d68880bf9ab63782d7da7a6a108d9f02f644e498fa53", kill_on_drop: false }`
[INFO] [stdout] f13ff729152583145834d68880bf9ab63782d7da7a6a108d9f02f644e498fa53