[INFO] crate nbd 0.2.2 is already in cache
[INFO] checking nbd-0.2.2 against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665
[INFO] extracting crate nbd 0.2.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate nbd 0.2.2 on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate nbd 0.2.2
[INFO] finished tweaking crates.io crate nbd 0.2.2
[INFO] tweaked toml for crates.io crate nbd 0.2.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 49a3df5420587657e9cadf81691b9a6e25b1ad41d4ec377cd8bc193bdaeaab31
[INFO] running `"docker" "start" "-a" "49a3df5420587657e9cadf81691b9a6e25b1ad41d4ec377cd8bc193bdaeaab31"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pipe v0.0.3
[INFO] [stderr]     Checking readwrite v0.1.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking nbd v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:560:41
[INFO] [stderr]     |
[INFO] [stderr] 560 |     pub const NBD_REP_FLAG_ERROR: u32 = (1 << 31);
[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 assigned value
[INFO] [stderr]    --> src/lib.rs:561:40
[INFO] [stderr]     |
[INFO] [stderr] 561 |     pub const NBD_REP_ERR_UNSUP: u32 = (1 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:562:41
[INFO] [stderr]     |
[INFO] [stderr] 562 |     pub const NBD_REP_ERR_POLICY: u32 = (2 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:563:42
[INFO] [stderr]     |
[INFO] [stderr] 563 |     pub const NBD_REP_ERR_INVALID: u32 = (3 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:564:43
[INFO] [stderr]     |
[INFO] [stderr] 564 |     pub const NBD_REP_ERR_PLATFORM: u32 = (4 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:565:43
[INFO] [stderr]     |
[INFO] [stderr] 565 |     pub const NBD_REP_ERR_TLS_REQD: u32 = (5 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:566:42
[INFO] [stderr]     |
[INFO] [stderr] 566 |     pub const NBD_REP_ERR_UNKNOWN: u32 = (6 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:567:50
[INFO] [stderr]     |
[INFO] [stderr] 567 |     pub const NBD_REP_ERR_BLOCK_SIZE_REQD: u32 = (8 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:569:46
[INFO] [stderr]     |
[INFO] [stderr] 569 |     pub const NBD_FLAG_FIXED_NEWSTYLE: u16 = (1 << 0);
[INFO] [stderr]     |                                              ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:570:41
[INFO] [stderr]     |
[INFO] [stderr] 570 |     pub const NBD_FLAG_NO_ZEROES: u16 = (1 << 1);
[INFO] [stderr]     |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:580:41
[INFO] [stderr]     |
[INFO] [stderr] 580 |     pub const NBD_FLAG_HAS_FLAGS: u16 = (1 << 0);
[INFO] [stderr]     |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:581:41
[INFO] [stderr]     |
[INFO] [stderr] 581 |     pub const NBD_FLAG_READ_ONLY: u16 = (1 << 1);
[INFO] [stderr]     |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:582:42
[INFO] [stderr]     |
[INFO] [stderr] 582 |     pub const NBD_FLAG_SEND_FLUSH: u16 = (1 << 2);
[INFO] [stderr]     |                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:583:40
[INFO] [stderr]     |
[INFO] [stderr] 583 |     pub const NBD_FLAG_SEND_FUA: u16 = (1 << 3);
[INFO] [stderr]     |                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:584:42
[INFO] [stderr]     |
[INFO] [stderr] 584 |     pub const NBD_FLAG_ROTATIONAL: u16 = (1 << 4);
[INFO] [stderr]     |                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:585:41
[INFO] [stderr]     |
[INFO] [stderr] 585 |     pub const NBD_FLAG_SEND_TRIM: u16 = (1 << 5);
[INFO] [stderr]     |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:586:49
[INFO] [stderr]     |
[INFO] [stderr] 586 |     pub const NBD_FLAG_SEND_WRITE_ZEROES: u16 = (1 << 6);
[INFO] [stderr]     |                                                 ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:587:46
[INFO] [stderr]     |
[INFO] [stderr] 587 |     pub const NBD_FLAG_CAN_MULTI_CONN: u16 = (1 << 8);
[INFO] [stderr]     |                                              ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:588:43
[INFO] [stderr]     |
[INFO] [stderr] 588 |     pub const NBD_FLAG_SEND_RESIZE: u16 = (1 << 9);
[INFO] [stderr]     |                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:560:41
[INFO] [stderr]     |
[INFO] [stderr] 560 |     pub const NBD_REP_FLAG_ERROR: u32 = (1 << 31);
[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 assigned value
[INFO] [stderr]    --> src/lib.rs:561:40
[INFO] [stderr]     |
[INFO] [stderr] 561 |     pub const NBD_REP_ERR_UNSUP: u32 = (1 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:562:41
[INFO] [stderr]     |
[INFO] [stderr] 562 |     pub const NBD_REP_ERR_POLICY: u32 = (2 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:563:42
[INFO] [stderr]     |
[INFO] [stderr] 563 |     pub const NBD_REP_ERR_INVALID: u32 = (3 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:564:43
[INFO] [stderr]     |
[INFO] [stderr] 564 |     pub const NBD_REP_ERR_PLATFORM: u32 = (4 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:565:43
[INFO] [stderr]     |
[INFO] [stderr] 565 |     pub const NBD_REP_ERR_TLS_REQD: u32 = (5 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:566:42
[INFO] [stderr]     |
[INFO] [stderr] 566 |     pub const NBD_REP_ERR_UNKNOWN: u32 = (6 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:567:50
[INFO] [stderr]     |
[INFO] [stderr] 567 |     pub const NBD_REP_ERR_BLOCK_SIZE_REQD: u32 = (8 | NBD_REP_FLAG_ERROR);
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:569:46
[INFO] [stderr]     |
[INFO] [stderr] 569 |     pub const NBD_FLAG_FIXED_NEWSTYLE: u16 = (1 << 0);
[INFO] [stderr]     |                                              ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:570:41
[INFO] [stderr]     |
[INFO] [stderr] 570 |     pub const NBD_FLAG_NO_ZEROES: u16 = (1 << 1);
[INFO] [stderr]     |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:580:41
[INFO] [stderr]     |
[INFO] [stderr] 580 |     pub const NBD_FLAG_HAS_FLAGS: u16 = (1 << 0);
[INFO] [stderr]     |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:581:41
[INFO] [stderr]     |
[INFO] [stderr] 581 |     pub const NBD_FLAG_READ_ONLY: u16 = (1 << 1);
[INFO] [stderr]     |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:582:42
[INFO] [stderr]     |
[INFO] [stderr] 582 |     pub const NBD_FLAG_SEND_FLUSH: u16 = (1 << 2);
[INFO] [stderr]     |                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:583:40
[INFO] [stderr]     |
[INFO] [stderr] 583 |     pub const NBD_FLAG_SEND_FUA: u16 = (1 << 3);
[INFO] [stderr]     |                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:584:42
[INFO] [stderr]     |
[INFO] [stderr] 584 |     pub const NBD_FLAG_ROTATIONAL: u16 = (1 << 4);
[INFO] [stderr]     |                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:585:41
[INFO] [stderr]     |
[INFO] [stderr] 585 |     pub const NBD_FLAG_SEND_TRIM: u16 = (1 << 5);
[INFO] [stderr]     |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:586:49
[INFO] [stderr]     |
[INFO] [stderr] 586 |     pub const NBD_FLAG_SEND_WRITE_ZEROES: u16 = (1 << 6);
[INFO] [stderr]     |                                                 ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:587:46
[INFO] [stderr]     |
[INFO] [stderr] 587 |     pub const NBD_FLAG_CAN_MULTI_CONN: u16 = (1 << 8);
[INFO] [stderr]     |                                              ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:588:43
[INFO] [stderr]     |
[INFO] [stderr] 588 |     pub const NBD_FLAG_SEND_RESIZE: u16 = (1 << 9);
[INFO] [stderr]     |                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/fuzz_transmission.rs:107:31
[INFO] [stderr]     |
[INFO] [stderr] 107 |                 Action::Write(mut sz) => {
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.80s
[INFO] running `"docker" "inspect" "49a3df5420587657e9cadf81691b9a6e25b1ad41d4ec377cd8bc193bdaeaab31"`
[INFO] running `"docker" "rm" "-f" "49a3df5420587657e9cadf81691b9a6e25b1ad41d4ec377cd8bc193bdaeaab31"`
[INFO] [stdout] 49a3df5420587657e9cadf81691b9a6e25b1ad41d4ec377cd8bc193bdaeaab31