[INFO] fetching crate rustler_sys 2.1.0...
[INFO] checking rustler_sys-2.1.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate rustler_sys 2.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rustler_sys 2.1.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustler_sys 2.1.0
[INFO] finished tweaking crates.io crate rustler_sys 2.1.0
[INFO] tweaked toml for crates.io crate rustler_sys 2.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 172a7954102578567c20dcc26fd284ae48e7c639c22bf73d673787453d5d1633
[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" "172a7954102578567c20dcc26fd284ae48e7c639c22bf73d673787453d5d1633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "172a7954102578567c20dcc26fd284ae48e7c639c22bf73d673787453d5d1633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "172a7954102578567c20dcc26fd284ae48e7c639c22bf73d673787453d5d1633", kill_on_drop: false }`
[INFO] [stdout] 172a7954102578567c20dcc26fd284ae48e7c639c22bf73d673787453d5d1633
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 887dec875e0e2aa92392ba6b75cf2ce82c4d953fc1b63954928d8157fdf28c35
[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" "887dec875e0e2aa92392ba6b75cf2ce82c4d953fc1b63954928d8157fdf28c35", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustler_sys v2.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:150:52
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub const ERL_NIF_SELECT_READ: ErlNifSelectFlags = (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 assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:151:53
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub const ERL_NIF_SELECT_WRITE: ErlNifSelectFlags = (1 << 1);
[INFO] [stdout]     |                                                     ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:152:52
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub const ERL_NIF_SELECT_STOP: ErlNifSelectFlags = (1 << 2);
[INFO] [stdout]     |                                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:153:54
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub const ERL_NIF_SELECT_FAILED: ErlNifSelectFlags = (1 << 3);
[INFO] [stdout]     |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:154:62
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub const ERL_NIF_SELECT_READ_CANCELLED: ErlNifSelectFlags = (1 << 4);
[INFO] [stdout]     |                                                              ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:155:63
[INFO] [stdout]     |
[INFO] [stdout] 155 | pub const ERL_NIF_SELECT_WRITE_CANCELLED: ErlNifSelectFlags = (1 << 5);
[INFO] [stdout]     |                                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:264:58
[INFO] [stdout]     |
[INFO] [stdout] 264 | pub const ERL_NIF_UNIQUE_POSITIVE: ErlNifUniqueInteger = (1 << 0);
[INFO] [stdout]     |                                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:266:59
[INFO] [stdout]     |
[INFO] [stdout] 266 | pub const ERL_NIF_UNIQUE_MONOTONIC: ErlNifUniqueInteger = (1 << 1);
[INFO] [stdout]     |                                                           ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:150:52
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub const ERL_NIF_SELECT_READ: ErlNifSelectFlags = (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 assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:151:53
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub const ERL_NIF_SELECT_WRITE: ErlNifSelectFlags = (1 << 1);
[INFO] [stdout]     |                                                     ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:152:52
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub const ERL_NIF_SELECT_STOP: ErlNifSelectFlags = (1 << 2);
[INFO] [stdout]     |                                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:153:54
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub const ERL_NIF_SELECT_FAILED: ErlNifSelectFlags = (1 << 3);
[INFO] [stdout]     |                                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:154:62
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub const ERL_NIF_SELECT_READ_CANCELLED: ErlNifSelectFlags = (1 << 4);
[INFO] [stdout]     |                                                              ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:155:63
[INFO] [stdout]     |
[INFO] [stdout] 155 | pub const ERL_NIF_SELECT_WRITE_CANCELLED: ErlNifSelectFlags = (1 << 5);
[INFO] [stdout]     |                                                               ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:264:58
[INFO] [stdout]     |
[INFO] [stdout] 264 | pub const ERL_NIF_UNIQUE_POSITIVE: ErlNifUniqueInteger = (1 << 0);
[INFO] [stdout]     |                                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/rustler_sys_api.rs:266:59
[INFO] [stdout]     |
[INFO] [stdout] 266 | pub const ERL_NIF_UNIQUE_MONOTONIC: ErlNifUniqueInteger = (1 << 1);
[INFO] [stdout]     |                                                           ^^^^^^^^ help: remove these parentheses
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "887dec875e0e2aa92392ba6b75cf2ce82c4d953fc1b63954928d8157fdf28c35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "887dec875e0e2aa92392ba6b75cf2ce82c4d953fc1b63954928d8157fdf28c35", kill_on_drop: false }`
[INFO] [stdout] 887dec875e0e2aa92392ba6b75cf2ce82c4d953fc1b63954928d8157fdf28c35