[INFO] fetching crate vec_map 0.8.2...
[INFO] testing vec_map-0.8.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate vec_map 0.8.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate vec_map 0.8.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vec_map 0.8.2
[INFO] finished tweaking crates.io crate vec_map 0.8.2
[INFO] tweaked toml for crates.io crate vec_map 0.8.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 785dfa4df28f53e19e16be6d0f8ede685e7d4aa5518ab37650a138f64402a0ce
[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" "785dfa4df28f53e19e16be6d0f8ede685e7d4aa5518ab37650a138f64402a0ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "785dfa4df28f53e19e16be6d0f8ede685e7d4aa5518ab37650a138f64402a0ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "785dfa4df28f53e19e16be6d0f8ede685e7d4aa5518ab37650a138f64402a0ce", kill_on_drop: false }`
[INFO] [stdout] 785dfa4df28f53e19e16be6d0f8ede685e7d4aa5518ab37650a138f64402a0ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23a23e895566c5babd364052b4dd3b25ede843ea168a3f316ec8debe0e02ac3b
[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" "23a23e895566c5babd364052b4dd3b25ede843ea168a3f316ec8debe0e02ac3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling vec_map v0.8.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1010:34
[INFO] [stdout]      |
[INFO] [stdout] 1010 |     fn next(&mut self) -> Option<(&'a V)> { self.iter.next().map(|e| e.1) }
[INFO] [stdout]      |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1017:39
[INFO] [stdout]      |
[INFO] [stdout] 1017 |     fn next_back(&mut self) -> Option<(&'a V)> { self.iter.next_back().map(|e| e.1) }
[INFO] [stdout]      |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1023:34
[INFO] [stdout]      |
[INFO] [stdout] 1023 |     fn next(&mut self) -> Option<(&'a mut V)> { self.iter_mut.next().map(|e| e.1) }
[INFO] [stdout]      |                                  ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "23a23e895566c5babd364052b4dd3b25ede843ea168a3f316ec8debe0e02ac3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23a23e895566c5babd364052b4dd3b25ede843ea168a3f316ec8debe0e02ac3b", kill_on_drop: false }`
[INFO] [stdout] 23a23e895566c5babd364052b4dd3b25ede843ea168a3f316ec8debe0e02ac3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6da7918c24bab7f2e646b74ad4cec8f43d5fd53abc235deb0f1f0563400c7898
[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" "6da7918c24bab7f2e646b74ad4cec8f43d5fd53abc235deb0f1f0563400c7898", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1010:34
[INFO] [stdout]      |
[INFO] [stdout] 1010 |     fn next(&mut self) -> Option<(&'a V)> { self.iter.next().map(|e| e.1) }
[INFO] [stdout]      |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling vec_map v0.8.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1017:39
[INFO] [stdout]      |
[INFO] [stdout] 1017 |     fn next_back(&mut self) -> Option<(&'a V)> { self.iter.next_back().map(|e| e.1) }
[INFO] [stdout]      |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1023:34
[INFO] [stdout]      |
[INFO] [stdout] 1023 |     fn next(&mut self) -> Option<(&'a mut V)> { self.iter_mut.next().map(|e| e.1) }
[INFO] [stdout]      |                                  ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1010:34
[INFO] [stdout]      |
[INFO] [stdout] 1010 |     fn next(&mut self) -> Option<(&'a V)> { self.iter.next().map(|e| e.1) }
[INFO] [stdout]      |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1017:39
[INFO] [stdout]      |
[INFO] [stdout] 1017 |     fn next_back(&mut self) -> Option<(&'a V)> { self.iter.next_back().map(|e| e.1) }
[INFO] [stdout]      |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1023:34
[INFO] [stdout]      |
[INFO] [stdout] 1023 |     fn next(&mut self) -> Option<(&'a mut V)> { self.iter_mut.next().map(|e| e.1) }
[INFO] [stdout]      |                                  ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "6da7918c24bab7f2e646b74ad4cec8f43d5fd53abc235deb0f1f0563400c7898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6da7918c24bab7f2e646b74ad4cec8f43d5fd53abc235deb0f1f0563400c7898", kill_on_drop: false }`
[INFO] [stdout] 6da7918c24bab7f2e646b74ad4cec8f43d5fd53abc235deb0f1f0563400c7898
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f7f573f46da7539166a825a227d75813d5e69bfe8b58ce7fa156d0013e2dfe20
[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" "f7f573f46da7539166a825a227d75813d5e69bfe8b58ce7fa156d0013e2dfe20", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stdout] running 28 tests
[INFO] [stderr]     --> src/lib.rs:1010:34
[INFO] [stderr]      |
[INFO] [stderr] 1010 |     fn next(&mut self) -> Option<(&'a V)> { self.iter.next().map(|e| e.1) }
[INFO] [stderr]      |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1017:39
[INFO] [stderr]      |
[INFO] [stderr] 1017 |     fn next_back(&mut self) -> Option<(&'a V)> { self.iter.next_back().map(|e| e.1) }
[INFO] [stderr]      |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1023:34
[INFO] [stderr]      |
[INFO] [stderr] 1023 |     fn next(&mut self) -> Option<(&'a mut V)> { self.iter_mut.next().map(|e| e.1) }
[INFO] [stderr]      |                                  ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1010:34
[INFO] [stderr]      |
[INFO] [stderr] 1010 |     fn next(&mut self) -> Option<(&'a V)> { self.iter.next().map(|e| e.1) }
[INFO] [stderr]      |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1017:39
[INFO] [stderr]      |
[INFO] [stderr] 1017 |     fn next_back(&mut self) -> Option<(&'a V)> { self.iter.next_back().map(|e| e.1) }
[INFO] [stderr]      |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1023:34
[INFO] [stderr]      |
[INFO] [stderr] 1023 |     fn next(&mut self) -> Option<(&'a mut V)> { self.iter_mut.next().map(|e| e.1) }
[INFO] [stderr]      |                                  ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/vec_map-b77c4c94a2dd5cec
[INFO] [stdout] test test::test_drain_iterator ... ok
[INFO] [stdout] test test::test_append ... ok
[INFO] [stdout] test test::test_clone ... ok
[INFO] [stdout] test test::test_clear ... ok
[INFO] [stdout] test test::test_entry ... ok
[INFO] [stdout] test test::test_from_iter ... ok
[INFO] [stdout] test test::test_get_mut ... ok
[INFO] [stdout] test test::test_hash ... ok
[INFO] [stdout] test test::test_index ... ok
[INFO] [stdout] test test::test_insert ... ok
[INFO] [stdout] test test::test_iterator ... ok
[INFO] [stdout] test test::test_keys ... ok
[INFO] [stdout] test test::test_lt ... ok
[INFO] [stdout] test test::test_len ... ok
[INFO] [stdout] test test::test_mut_iterator ... ok
[INFO] [stdout] test test::test_mut_rev_iterator ... ok
[INFO] [stdout] test test::test_move_iter ... ok
[INFO] [stdout] test test::test_retain ... ok
[INFO] [stdout] test test::test_rev_iterator ... ok
[INFO] [stdout] test test::test_show ... ok
[INFO] [stdout] test test::test_split_off ... ok
[INFO] [stdout] test test::test_values ... ok
[INFO] [stdout] test test::test_ord ... ok
[INFO] [stdout] test test::test_remove ... ok
[INFO] [stdout] test test::test_extend_ref ... ok
[INFO] [stdout] test test::test_eq ... ok
[INFO] [stdout] test test::test_iterator_size_hints ... ok
[INFO] [stderr]    Doc-tests vec_map
[INFO] [stdout] test test::test_index_nonexistent ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> /opt/rustwide/workdir/src/lib.rs:1010:34
[INFO] [stderr]      |
[INFO] [stderr] 1010 |     fn next(&mut self) -> Option<(&'a V)> { self.iter.next().map(|e| e.1) }
[INFO] [stderr]      |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> /opt/rustwide/workdir/src/lib.rs:1017:39
[INFO] [stderr]      |
[INFO] [stderr] 1017 |     fn next_back(&mut self) -> Option<(&'a V)> { self.iter.next_back().map(|e| e.1) }
[INFO] [stderr]      |                                       ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> /opt/rustwide/workdir/src/lib.rs:1023:34
[INFO] [stderr]      |
[INFO] [stderr] 1023 |     fn next(&mut self) -> Option<(&'a mut V)> { self.iter_mut.next().map(|e| e.1) }
[INFO] [stderr]      |                                  ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test src/lib.rs - VecMap<V>::len (line 420) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::get_mut (line 503) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::get (line 466) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::new (line 114) ... ok
[INFO] [stdout] test src/lib.rs - VecMap (line 36) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::insert (line 526) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::entry (line 578) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::is_empty (line 436) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::clear (line 452) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::append (line 297) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::contains_key (line 486) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::iter_mut (line 267) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::drain (line 394) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::iter (line 238) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::capacity (line 138) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<T>::into_iter (line 760) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::with_capacity (line 125) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::reserve_len (line 156) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::remove (line 554) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::shrink_to_fit (line 198) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::reserve_len_exact (line 179) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::retain (line 614) ... ok
[INFO] [stdout] test src/lib.rs - VecMap<V>::split_off (line 330) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f7f573f46da7539166a825a227d75813d5e69bfe8b58ce7fa156d0013e2dfe20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7f573f46da7539166a825a227d75813d5e69bfe8b58ce7fa156d0013e2dfe20", kill_on_drop: false }`
[INFO] [stdout] f7f573f46da7539166a825a227d75813d5e69bfe8b58ce7fa156d0013e2dfe20