[INFO] fetching crate membarrier 0.2.2...
[INFO] checking membarrier-0.2.2 against beta for pr-78714
[INFO] extracting crate membarrier 0.2.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate membarrier 0.2.2 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate membarrier 0.2.2
[INFO] finished tweaking crates.io crate membarrier 0.2.2
[INFO] tweaked toml for crates.io crate membarrier 0.2.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 928b4b30384f395ab53e5d465bf7c079c27d3b8e7b9edd2667107c4b72dd47d0
[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" "928b4b30384f395ab53e5d465bf7c079c27d3b8e7b9edd2667107c4b72dd47d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "928b4b30384f395ab53e5d465bf7c079c27d3b8e7b9edd2667107c4b72dd47d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "928b4b30384f395ab53e5d465bf7c079c27d3b8e7b9edd2667107c4b72dd47d0", kill_on_drop: false }`
[INFO] [stdout] 928b4b30384f395ab53e5d465bf7c079c27d3b8e7b9edd2667107c4b72dd47d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fb0786a74359df6e55233cd24568b085563d73b9bdf387e378153099ad885d8
[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" "7fb0786a74359df6e55233cd24568b085563d73b9bdf387e378153099ad885d8", kill_on_drop: false }`
[INFO] [stderr]     Checking membarrier v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:158:37
[INFO] [stdout]     |
[INFO] [stdout] 158 |             MEMBARRIER_CMD_GLOBAL = (1 << 0),
[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 const expression
[INFO] [stdout]    --> src/lib.rs:159:47
[INFO] [stdout]     |
[INFO] [stdout] 159 |             MEMBARRIER_CMD_GLOBAL_EXPEDITED = (1 << 1),
[INFO] [stdout]     |                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:160:56
[INFO] [stdout]     |
[INFO] [stdout] 160 |             MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED = (1 << 2),
[INFO] [stdout]     |                                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:161:48
[INFO] [stdout]     |
[INFO] [stdout] 161 |             MEMBARRIER_CMD_PRIVATE_EXPEDITED = (1 << 3),
[INFO] [stdout]     |                                                ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:162:57
[INFO] [stdout]     |
[INFO] [stdout] 162 |             MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED = (1 << 4),
[INFO] [stdout]     |                                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:163:58
[INFO] [stdout]     |
[INFO] [stdout] 163 |             MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 5),
[INFO] [stdout]     |                                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:164:67
[INFO] [stdout]     |
[INFO] [stdout] 164 |             MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 6),
[INFO] [stdout]     |                                                                   ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:281:63
[INFO] [stdout]     |
[INFO] [stdout] 281 |                     let mut attr: libc::pthread_mutexattr_t = mem::uninitialized();
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:158:37
[INFO] [stdout]     |
[INFO] [stdout] 158 |             MEMBARRIER_CMD_GLOBAL = (1 << 0),
[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 const expression
[INFO] [stdout]    --> src/lib.rs:159:47
[INFO] [stdout]     |
[INFO] [stdout] 159 |             MEMBARRIER_CMD_GLOBAL_EXPEDITED = (1 << 1),
[INFO] [stdout]     |                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:160:56
[INFO] [stdout]     |
[INFO] [stdout] 160 |             MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED = (1 << 2),
[INFO] [stdout]     |                                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:161:48
[INFO] [stdout]     |
[INFO] [stdout] 161 |             MEMBARRIER_CMD_PRIVATE_EXPEDITED = (1 << 3),
[INFO] [stdout]     |                                                ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:162:57
[INFO] [stdout]     |
[INFO] [stdout] 162 |             MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED = (1 << 4),
[INFO] [stdout]     |                                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:163:58
[INFO] [stdout]     |
[INFO] [stdout] 163 |             MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 5),
[INFO] [stdout]     |                                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/lib.rs:164:67
[INFO] [stdout]     |
[INFO] [stdout] 164 |             MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 6),
[INFO] [stdout]     |                                                                   ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `core::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/lib.rs:281:63
[INFO] [stdout]     |
[INFO] [stdout] 281 |                     let mut attr: libc::pthread_mutexattr_t = mem::uninitialized();
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `membarrier`
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/membarrier.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7fb0786a74359df6e55233cd24568b085563d73b9bdf387e378153099ad885d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fb0786a74359df6e55233cd24568b085563d73b9bdf387e378153099ad885d8", kill_on_drop: false }`
[INFO] [stdout] 7fb0786a74359df6e55233cd24568b085563d73b9bdf387e378153099ad885d8