[INFO] crate membarrier 0.2.1 is already in cache
[INFO] testing membarrier-0.2.1 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate membarrier 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate membarrier 0.2.1 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate membarrier 0.2.1
[INFO] finished tweaking crates.io crate membarrier 0.2.1
[INFO] tweaked toml for crates.io crate membarrier 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1e921d5f5780733e45c662cbd0836012061bf4e3030e08801928334f5596a5ec
[INFO] running `"docker" "start" "-a" "1e921d5f5780733e45c662cbd0836012061bf4e3030e08801928334f5596a5ec"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling membarrier v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:137:33
[INFO] [stderr]     |
[INFO] [stderr] 137 |         MEMBARRIER_CMD_GLOBAL = (1 << 0),
[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 const expression
[INFO] [stderr]    --> src/lib.rs:138:43
[INFO] [stderr]     |
[INFO] [stderr] 138 |         MEMBARRIER_CMD_GLOBAL_EXPEDITED = (1 << 1),
[INFO] [stderr]     |                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:139:52
[INFO] [stderr]     |
[INFO] [stderr] 139 |         MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED = (1 << 2),
[INFO] [stderr]     |                                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:140:44
[INFO] [stderr]     |
[INFO] [stderr] 140 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED = (1 << 3),
[INFO] [stderr]     |                                            ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:141:53
[INFO] [stderr]     |
[INFO] [stderr] 141 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED = (1 << 4),
[INFO] [stderr]     |                                                     ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:142:54
[INFO] [stderr]     |
[INFO] [stderr] 142 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 5),
[INFO] [stderr]     |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:143:63
[INFO] [stderr]     |
[INFO] [stderr] 143 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 6),
[INFO] [stderr]     |                                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:247:59
[INFO] [stderr]     |
[INFO] [stderr] 247 |                 let mut attr: libc::pthread_mutexattr_t = mem::uninitialized();
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "1e921d5f5780733e45c662cbd0836012061bf4e3030e08801928334f5596a5ec"`
[INFO] running `"docker" "rm" "-f" "1e921d5f5780733e45c662cbd0836012061bf4e3030e08801928334f5596a5ec"`
[INFO] [stdout] 1e921d5f5780733e45c662cbd0836012061bf4e3030e08801928334f5596a5ec
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c40159cb86a8e7f6a0f3eb4dc9cfc62670df16140e877cf77a051498a9fe275d
[INFO] running `"docker" "start" "-a" "c40159cb86a8e7f6a0f3eb4dc9cfc62670df16140e877cf77a051498a9fe275d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:137:33
[INFO] [stderr]     |
[INFO] [stderr] 137 |         MEMBARRIER_CMD_GLOBAL = (1 << 0),
[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 const expression
[INFO] [stderr]    --> src/lib.rs:138:43
[INFO] [stderr]     |
[INFO] [stderr] 138 |         MEMBARRIER_CMD_GLOBAL_EXPEDITED = (1 << 1),
[INFO] [stderr]     |                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:139:52
[INFO] [stderr]     |
[INFO] [stderr] 139 |         MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED = (1 << 2),
[INFO] [stderr]     |                                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:140:44
[INFO] [stderr]     |
[INFO] [stderr] 140 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED = (1 << 3),
[INFO] [stderr]     |                                            ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:141:53
[INFO] [stderr]     |
[INFO] [stderr] 141 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED = (1 << 4),
[INFO] [stderr]     |                                                     ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:142:54
[INFO] [stderr]     |
[INFO] [stderr] 142 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 5),
[INFO] [stderr]     |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:143:63
[INFO] [stderr]     |
[INFO] [stderr] 143 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 6),
[INFO] [stderr]     |                                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:247:59
[INFO] [stderr]     |
[INFO] [stderr] 247 |                 let mut attr: libc::pthread_mutexattr_t = mem::uninitialized();
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling membarrier v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:137:33
[INFO] [stderr]     |
[INFO] [stderr] 137 |         MEMBARRIER_CMD_GLOBAL = (1 << 0),
[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 const expression
[INFO] [stderr]    --> src/lib.rs:138:43
[INFO] [stderr]     |
[INFO] [stderr] 138 |         MEMBARRIER_CMD_GLOBAL_EXPEDITED = (1 << 1),
[INFO] [stderr]     |                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:139:52
[INFO] [stderr]     |
[INFO] [stderr] 139 |         MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED = (1 << 2),
[INFO] [stderr]     |                                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:140:44
[INFO] [stderr]     |
[INFO] [stderr] 140 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED = (1 << 3),
[INFO] [stderr]     |                                            ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:141:53
[INFO] [stderr]     |
[INFO] [stderr] 141 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED = (1 << 4),
[INFO] [stderr]     |                                                     ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:142:54
[INFO] [stderr]     |
[INFO] [stderr] 142 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 5),
[INFO] [stderr]     |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:143:63
[INFO] [stderr]     |
[INFO] [stderr] 143 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 6),
[INFO] [stderr]     |                                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:247:59
[INFO] [stderr]     |
[INFO] [stderr] 247 |                 let mut attr: libc::pthread_mutexattr_t = mem::uninitialized();
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "c40159cb86a8e7f6a0f3eb4dc9cfc62670df16140e877cf77a051498a9fe275d"`
[INFO] running `"docker" "rm" "-f" "c40159cb86a8e7f6a0f3eb4dc9cfc62670df16140e877cf77a051498a9fe275d"`
[INFO] [stdout] c40159cb86a8e7f6a0f3eb4dc9cfc62670df16140e877cf77a051498a9fe275d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] feabd2b2ddf3c9c9c43cc73c96d0769fa36e3e0e0e76bd798244b6b8fd2c26b9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "feabd2b2ddf3c9c9c43cc73c96d0769fa36e3e0e0e76bd798244b6b8fd2c26b9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:137:33
[INFO] [stderr]     |
[INFO] [stderr] 137 |         MEMBARRIER_CMD_GLOBAL = (1 << 0),
[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 const expression
[INFO] [stderr]    --> src/lib.rs:138:43
[INFO] [stderr]     |
[INFO] [stderr] 138 |         MEMBARRIER_CMD_GLOBAL_EXPEDITED = (1 << 1),
[INFO] [stderr]     |                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:139:52
[INFO] [stderr]     |
[INFO] [stderr] 139 |         MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED = (1 << 2),
[INFO] [stderr]     |                                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:140:44
[INFO] [stderr]     |
[INFO] [stderr] 140 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED = (1 << 3),
[INFO] [stderr]     |                                            ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:141:53
[INFO] [stderr]     |
[INFO] [stderr] 141 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED = (1 << 4),
[INFO] [stderr]     |                                                     ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:142:54
[INFO] [stderr]     |
[INFO] [stderr] 142 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 5),
[INFO] [stderr]     |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:143:63
[INFO] [stderr]     |
[INFO] [stderr] 143 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 6),
[INFO] [stderr]     |                                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:247:59
[INFO] [stderr]     |
[INFO] [stderr] 247 |                 let mut attr: libc::pthread_mutexattr_t = mem::uninitialized();
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:137:33
[INFO] [stderr]     |
[INFO] [stderr] 137 |         MEMBARRIER_CMD_GLOBAL = (1 << 0),
[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 const expression
[INFO] [stderr]    --> src/lib.rs:138:43
[INFO] [stderr]     |
[INFO] [stderr] 138 |         MEMBARRIER_CMD_GLOBAL_EXPEDITED = (1 << 1),
[INFO] [stderr]     |                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:139:52
[INFO] [stderr]     |
[INFO] [stderr] 139 |         MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED = (1 << 2),
[INFO] [stderr]     |                                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:140:44
[INFO] [stderr]     |
[INFO] [stderr] 140 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED = (1 << 3),
[INFO] [stderr]     |                                            ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:141:53
[INFO] [stderr]     |
[INFO] [stderr] 141 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED = (1 << 4),
[INFO] [stderr]     |                                                     ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:142:54
[INFO] [stderr]     |
[INFO] [stderr] 142 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 5),
[INFO] [stderr]     |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/lib.rs:143:63
[INFO] [stderr]     |
[INFO] [stderr] 143 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 6),
[INFO] [stderr]     |                                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/lib.rs:247:59
[INFO] [stderr]     |
[INFO] [stderr] 247 |                 let mut attr: libc::pthread_mutexattr_t = mem::uninitialized();
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/membarrier-3d2e242522e71630
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/membarrier-dff35b1053866057
[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 1 test
[INFO] [stdout] test fences ... ok
[INFO] [stderr]    Doc-tests membarrier
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:137:33
[INFO] [stderr]     |
[INFO] [stderr] 137 |         MEMBARRIER_CMD_GLOBAL = (1 << 0),
[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 const expression
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:138:43
[INFO] [stderr]     |
[INFO] [stderr] 138 |         MEMBARRIER_CMD_GLOBAL_EXPEDITED = (1 << 1),
[INFO] [stderr]     |                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:139:52
[INFO] [stderr]     |
[INFO] [stderr] 139 |         MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED = (1 << 2),
[INFO] [stderr]     |                                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:140:44
[INFO] [stderr]     |
[INFO] [stderr] 140 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED = (1 << 3),
[INFO] [stderr]     |                                            ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:141:53
[INFO] [stderr]     |
[INFO] [stderr] 141 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED = (1 << 4),
[INFO] [stderr]     |                                                     ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:142:54
[INFO] [stderr]     |
[INFO] [stderr] 142 |         MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 5),
[INFO] [stderr]     |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:143:63
[INFO] [stderr]     |
[INFO] [stderr] 143 |         MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 6),
[INFO] [stderr]     |                                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 37) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "feabd2b2ddf3c9c9c43cc73c96d0769fa36e3e0e0e76bd798244b6b8fd2c26b9"`
[INFO] running `"docker" "rm" "-f" "feabd2b2ddf3c9c9c43cc73c96d0769fa36e3e0e0e76bd798244b6b8fd2c26b9"`
[INFO] [stdout] feabd2b2ddf3c9c9c43cc73c96d0769fa36e3e0e0e76bd798244b6b8fd2c26b9