[INFO] crate orset 0.2.0 is already in cache [INFO] extracting crate orset 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/orset/0.2.0 [INFO] extracting crate orset 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/orset/0.2.0 [INFO] validating manifest of orset-0.2.0 on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of orset-0.2.0 on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing orset-0.2.0 [INFO] finished frobbing orset-0.2.0 [INFO] frobbed toml for orset-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/orset/0.2.0/Cargo.toml [INFO] started frobbing orset-0.2.0 [INFO] finished frobbing orset-0.2.0 [INFO] frobbed toml for orset-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/orset/0.2.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing orset-0.2.0 against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/orset/0.2.0:/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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 23283de9a0971284782e525af1564ea1eb564e8f1cf25485edd8d7665220611b [INFO] running `"docker" "start" "-a" "23283de9a0971284782e525af1564ea1eb564e8f1cf25485edd8d7665220611b"` [INFO] [stderr] Compiling orset v0.2.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:77:13 [INFO] [stderr] | [INFO] [stderr] 77 | let mut adds = self.adds.entry(element).or_insert(Vec::new()); [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] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:89:13 [INFO] [stderr] | [INFO] [stderr] 89 | let mut removes = self.removes.entry(element.clone()).or_insert(Vec::new()); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:90:13 [INFO] [stderr] | [INFO] [stderr] 90 | let mut adds = self.adds.get_mut(&element).unwrap(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.71s [INFO] running `"docker" "inspect" "23283de9a0971284782e525af1564ea1eb564e8f1cf25485edd8d7665220611b"` [INFO] running `"docker" "rm" "-f" "23283de9a0971284782e525af1564ea1eb564e8f1cf25485edd8d7665220611b"` [INFO] [stdout] 23283de9a0971284782e525af1564ea1eb564e8f1cf25485edd8d7665220611b [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/orset/0.2.0:/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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] dd23c8577dcff5e69d8a20360f32b2ead2a05f3d6650ea830d6d126e28550ef1 [INFO] running `"docker" "start" "-a" "dd23c8577dcff5e69d8a20360f32b2ead2a05f3d6650ea830d6d126e28550ef1"` [INFO] [stderr] Compiling orset v0.2.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:77:13 [INFO] [stderr] | [INFO] [stderr] 77 | let mut adds = self.adds.entry(element).or_insert(Vec::new()); [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] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:89:13 [INFO] [stderr] | [INFO] [stderr] 89 | let mut removes = self.removes.entry(element.clone()).or_insert(Vec::new()); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:90:13 [INFO] [stderr] | [INFO] [stderr] 90 | let mut adds = self.adds.get_mut(&element).unwrap(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:422:25 [INFO] [stderr] | [INFO] [stderr] 422 | let mut orset = orsets.entry(node.clone()) [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:443:33 [INFO] [stderr] | [INFO] [stderr] 443 | let mut orset = orsets.get_mut(&node).unwrap(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:517:13 [INFO] [stderr] | [INFO] [stderr] 517 | let mut orset = [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:520:13 [INFO] [stderr] | [INFO] [stderr] 520 | let mut mutator = mutators.entry(node).or_insert(Vec::new()); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:533:29 [INFO] [stderr] | [INFO] [stderr] 533 | let mut mutator = mutators.get_mut(&node).unwrap(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:544:25 [INFO] [stderr] | [INFO] [stderr] 544 | for (node2, mut orset) in orsets.iter_mut() { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:556:20 [INFO] [stderr] | [INFO] [stderr] 556 | for (node, mut orset) in orsets.iter_mut() { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.02s [INFO] running `"docker" "inspect" "dd23c8577dcff5e69d8a20360f32b2ead2a05f3d6650ea830d6d126e28550ef1"` [INFO] running `"docker" "rm" "-f" "dd23c8577dcff5e69d8a20360f32b2ead2a05f3d6650ea830d6d126e28550ef1"` [INFO] [stdout] dd23c8577dcff5e69d8a20360f32b2ead2a05f3d6650ea830d6d126e28550ef1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/orset/0.2.0:/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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] f6c9d2485c76149b2677f071bd51a738939b2345bcd722f45f65b4a0ea195e5c [INFO] running `"docker" "start" "-a" "f6c9d2485c76149b2677f071bd51a738939b2345bcd722f45f65b4a0ea195e5c"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running /opt/crater/target/debug/deps/orset-d411bdd87c9cb219 [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test tests::concurrent_add_wins ... ok [INFO] [stdout] test tests::basic ... ok [INFO] [stdout] test tests::prop_joins_equivalent ... ok [INFO] [stdout] test tests::prop_concurrent ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests orset [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "f6c9d2485c76149b2677f071bd51a738939b2345bcd722f45f65b4a0ea195e5c"` [INFO] running `"docker" "rm" "-f" "f6c9d2485c76149b2677f071bd51a738939b2345bcd722f45f65b4a0ea195e5c"` [INFO] [stdout] f6c9d2485c76149b2677f071bd51a738939b2345bcd722f45f65b4a0ea195e5c