[INFO] updating cached repository ricardopieper/rust-concurrency-tests [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/ricardopieper/rust-concurrency-tests [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/ricardopieper/rust-concurrency-tests" "work/ex/beta-1.38-1/sources/1.37.0/gh/ricardopieper/rust-concurrency-tests"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ricardopieper/rust-concurrency-tests'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/ricardopieper/rust-concurrency-tests" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ricardopieper/rust-concurrency-tests"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ricardopieper/rust-concurrency-tests'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] bf5d96403af158bfc1ad58a705530c2211efde87 [INFO] sha for GitHub repo ricardopieper/rust-concurrency-tests: bf5d96403af158bfc1ad58a705530c2211efde87 [INFO] validating manifest of ricardopieper/rust-concurrency-tests 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 ricardopieper/rust-concurrency-tests 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 ricardopieper/rust-concurrency-tests [INFO] finished frobbing ricardopieper/rust-concurrency-tests [INFO] frobbed toml for ricardopieper/rust-concurrency-tests written to work/ex/beta-1.38-1/sources/1.37.0/gh/ricardopieper/rust-concurrency-tests/Cargo.toml [INFO] started frobbing ricardopieper/rust-concurrency-tests [INFO] finished frobbing ricardopieper/rust-concurrency-tests [INFO] frobbed toml for ricardopieper/rust-concurrency-tests written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ricardopieper/rust-concurrency-tests/Cargo.toml [INFO] crate ricardopieper/rust-concurrency-tests already has a lockfile, it will not be regenerated [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 ricardopieper/rust-concurrency-tests 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ricardopieper/rust-concurrency-tests:/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] 67ce931a1d13e33f060dc1e180d341be78ade8b6d2844887285359c4f5f5a24a [INFO] running `"docker" "start" "-a" "67ce931a1d13e33f060dc1e180d341be78ade8b6d2844887285359c4f5f5a24a"` [INFO] [stderr] Compiling rust-concurrency-tests v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.07s [INFO] running `"docker" "inspect" "67ce931a1d13e33f060dc1e180d341be78ade8b6d2844887285359c4f5f5a24a"` [INFO] running `"docker" "rm" "-f" "67ce931a1d13e33f060dc1e180d341be78ade8b6d2844887285359c4f5f5a24a"` [INFO] [stdout] 67ce931a1d13e33f060dc1e180d341be78ade8b6d2844887285359c4f5f5a24a [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ricardopieper/rust-concurrency-tests:/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] 919b89dba4028960d706139565304193af5eae25571d4c129becec5a7dfa3374 [INFO] running `"docker" "start" "-a" "919b89dba4028960d706139565304193af5eae25571d4c129becec5a7dfa3374"` [INFO] [stderr] Compiling rust-concurrency-tests v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/linked_set_tests.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let mut set = CoarseLockLinkedSet::::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] --> tests/linked_set_tests.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | let mut set = CoarseLockLinkedSet::::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] --> tests/linked_set_tests.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let mut set = CoarseLockLinkedSet::::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] --> tests/linked_set_tests.rs:49:9 [INFO] [stderr] | [INFO] [stderr] 49 | let mut set = CoarseLockLinkedSet::::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] --> tests/linked_set_tests.rs:58:9 [INFO] [stderr] | [INFO] [stderr] 58 | let mut set = CoarseLockLinkedSet::::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] --> tests/linked_set_tests.rs:83:9 [INFO] [stderr] | [INFO] [stderr] 83 | let mut set = CoarseLockLinkedSet::::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] --> tests/linked_set_tests.rs:108:9 [INFO] [stderr] | [INFO] [stderr] 108 | let mut set = CoarseLockLinkedSet::::new(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.81s [INFO] running `"docker" "inspect" "919b89dba4028960d706139565304193af5eae25571d4c129becec5a7dfa3374"` [INFO] running `"docker" "rm" "-f" "919b89dba4028960d706139565304193af5eae25571d4c129becec5a7dfa3374"` [INFO] [stdout] 919b89dba4028960d706139565304193af5eae25571d4c129becec5a7dfa3374 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ricardopieper/rust-concurrency-tests:/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] 77d11d46d9d157410a3d515cb73ae6f0e4f1e9fca4f1a7193656370548aebf74 [INFO] running `"docker" "start" "-a" "77d11d46d9d157410a3d515cb73ae6f0e4f1e9fca4f1a7193656370548aebf74"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/crater/target/debug/deps/rust_concurrency_tests-34409baeb77f500d [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] [stderr] Running /opt/crater/target/debug/deps/rust_concurrency_tests-f9a5c0de6ffa6ee6 [INFO] [stderr] Running /opt/crater/target/debug/deps/linked_set_tests-54db2306db09aed8 [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] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test adds_multiple_items_and_removes_everything_no_particular_order ... ok [INFO] [stdout] test adds_root_and_fails_to_remove ... ok [INFO] [stdout] test adds_multiple_items_and_removes_everything_front_to_back ... ok [INFO] [stdout] test adds_multiple_items_and_removes_everything_back_to_front ... ok [INFO] [stdout] test adds_item ... ok [INFO] [stdout] test adds_and_removes_root ... ok [INFO] [stdout] test adding_same_item_has_no_effect ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests rust-concurrency-tests [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" "77d11d46d9d157410a3d515cb73ae6f0e4f1e9fca4f1a7193656370548aebf74"` [INFO] running `"docker" "rm" "-f" "77d11d46d9d157410a3d515cb73ae6f0e4f1e9fca4f1a7193656370548aebf74"` [INFO] [stdout] 77d11d46d9d157410a3d515cb73ae6f0e4f1e9fca4f1a7193656370548aebf74