[INFO] crate multimap 0.5.0 is already in cache
[INFO] extracting crate multimap 0.5.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/multimap/0.5.0
[INFO] extracting crate multimap 0.5.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/multimap/0.5.0
[INFO] validating manifest of multimap-0.5.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of multimap-0.5.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing multimap-0.5.0
[INFO] finished frobbing multimap-0.5.0
[INFO] frobbed toml for multimap-0.5.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/multimap/0.5.0/Cargo.toml
[INFO] started frobbing multimap-0.5.0
[INFO] finished frobbing multimap-0.5.0
[INFO] frobbed toml for multimap-0.5.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/multimap/0.5.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing multimap-0.5.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/multimap/0.5.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] bccc33cb9517e8656aa24b6ada39c03f1d00b3804f4154b07a3456ba2a46be14
[INFO] running `"docker" "start" "-a" "bccc33cb9517e8656aa24b6ada39c03f1d00b3804f4154b07a3456ba2a46be14"`
[INFO] [stderr]    Compiling multimap v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:526:19
[INFO] [stderr]     |
[INFO] [stderr] 526 |         for (key, mut vector) in &mut self.inner {
[INFO] [stderr]     |                   ----^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "bccc33cb9517e8656aa24b6ada39c03f1d00b3804f4154b07a3456ba2a46be14"`
[INFO] running `"docker" "rm" "-f" "bccc33cb9517e8656aa24b6ada39c03f1d00b3804f4154b07a3456ba2a46be14"`
[INFO] [stdout] bccc33cb9517e8656aa24b6ada39c03f1d00b3804f4154b07a3456ba2a46be14
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/multimap/0.5.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] bc09314d6715e5b54cc6a4002d0d309d553abd087151652e74c45501b483cc1e
[INFO] running `"docker" "start" "-a" "bc09314d6715e5b54cc6a4002d0d309d553abd087151652e74c45501b483cc1e"`
[INFO] [stderr]    Compiling multimap v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:526:19
[INFO] [stderr]     |
[INFO] [stderr] 526 |         for (key, mut vector) in &mut self.inner {
[INFO] [stderr]     |                   ----^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `"docker" "inspect" "bc09314d6715e5b54cc6a4002d0d309d553abd087151652e74c45501b483cc1e"`
[INFO] running `"docker" "rm" "-f" "bc09314d6715e5b54cc6a4002d0d309d553abd087151652e74c45501b483cc1e"`
[INFO] [stdout] bc09314d6715e5b54cc6a4002d0d309d553abd087151652e74c45501b483cc1e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/multimap/0.5.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 24d952a7b1371d2227bde6dfd5be6931e1c6c3ae6c3a9511bbe74070e8c511af
[INFO] running `"docker" "start" "-a" "24d952a7b1371d2227bde6dfd5be6931e1c6c3ae6c3a9511bbe74070e8c511af"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/multimap-0bd2a3083f102ec0
[INFO] [stdout] 
[INFO] [stdout] running 43 tests
[INFO] [stdout] test tests::clear ... ok
[INFO] [stdout] test tests::capacity ... ok
[INFO] [stdout] test serde::tests::test_empty ... ok
[INFO] [stdout] test serde::tests::test_single ... ok
[INFO] [stdout] test serde::tests::test_multiple ... ok
[INFO] [stdout] test tests::contains_key_true ... ok
[INFO] [stdout] test tests::contains_key_false ... ok
[INFO] [stdout] test tests::create ... ok
[INFO] [stdout] test tests::get_vec_present ... ok
[INFO] [stdout] test tests::index ... ok
[INFO] [stdout] test tests::get_vec_not_present ... ok
[INFO] [stdout] test tests::get_vec_mut ... ok
[INFO] [stdout] test tests::get_not_present ... ok
[INFO] [stdout] test tests::get_mut ... ok
[INFO] [stdout] test tests::get_present ... ok
[INFO] [stdout] test tests::intoiterator_consuming ... ok
[INFO] [stdout] test tests::intoiterator_for_mutable_reference_type ... ok
[INFO] [stdout] test tests::intoiterator_for_reference_type ... ok
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::is_empty_true ... ok
[INFO] [stdout] test tests::keys ... ok
[INFO] [stdout] test tests::is_empty_false ... ok
[INFO] [stdout] test tests::len ... ok
[INFO] [stdout] test tests::new ... ok
[INFO] [stdout] test tests::remove_not_present ... ok
[INFO] [stdout] test tests::insert ... ok
[INFO] [stdout] test tests::insert_existing ... ok
[INFO] [stdout] test tests::test_default ... ok
[INFO] [stdout] test tests::retain_also_removes_empty_vector ... ok
[INFO] [stdout] test tests::test_entry ... ok
[INFO] [stdout] test tests::retain_removes_element ... ok
[INFO] [stdout] test tests::test_entry_vec ... ok
[INFO] [stdout] test tests::test_eq ... ok
[INFO] [stdout] test tests::test_extend_consuming_hashmap ... ok
[INFO] [stdout] test tests::test_extend_consuming_multimap ... ok
[INFO] [stdout] test tests::test_from_iterator ... ok
[INFO] [stdout] test tests::test_extend_ref_hashmap ... ok
[INFO] [stdout] test tests::remove_present ... ok
[INFO] [stdout] test tests::test_extend_ref_multimap ... ok
[INFO] [stdout] test tests::test_macro ... ok
[INFO] [stdout] test tests::with_capacity ... ok
[INFO] [stdout] test tests::test_fmt_debug ... ok
[INFO] [stdout] test tests::index_no_entry ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 43 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests multimap
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::capacity (line 304) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::get (line 211) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::clear (line 335) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::contains_key (line 148) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::entry (line 476) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::get_mut (line 234) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::get_vec (line 259) ... ok
[INFO] [stdout] test src/lib.rs -  (line 20) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::get_vec_mut (line 281) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::insert (line 124) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::is_empty (line 318) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::iter_all_mut (line 447) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::iter_all (line 424) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::iter (line 374) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::keys (line 352) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::iter_mut (line 397) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::new (line 96) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::len (line 167) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::remove (line 187) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::with_capacity (line 109) ... ok
[INFO] [stdout] test src/lib.rs - multimap (line 727) ... ok
[INFO] [stdout] test src/lib.rs - MultiMap<K, V>::retain (line 512) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "24d952a7b1371d2227bde6dfd5be6931e1c6c3ae6c3a9511bbe74070e8c511af"`
[INFO] running `"docker" "rm" "-f" "24d952a7b1371d2227bde6dfd5be6931e1c6c3ae6c3a9511bbe74070e8c511af"`
[INFO] [stdout] 24d952a7b1371d2227bde6dfd5be6931e1c6c3ae6c3a9511bbe74070e8c511af