[INFO] fetching crate tst 0.10.1...
[INFO] checking tst-0.10.1 against master#7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3 for pr-71873
[INFO] extracting crate tst 0.10.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate tst 0.10.1 on toolchain 7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tst 0.10.1
[INFO] finished tweaking crates.io crate tst 0.10.1
[INFO] tweaked toml for crates.io crate tst 0.10.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "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] 979ec6e3c61f4be09a658e92f4fb7b6db8b0b76b17cf38ca873c6670408c5528
[INFO] running `"docker" "start" "-a" "979ec6e3c61f4be09a658e92f4fb7b6db8b0b76b17cf38ca873c6670408c5528"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling fs_extra v1.1.0
[INFO] [stderr]    Compiling cc v1.0.53
[INFO] [stderr]     Checking tst v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/set.rs:268:17
[INFO] [stderr]     |
[INFO] [stderr] 268 | impl<'x> Extend<(&'x str)> for TSTSet {
[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 type
[INFO] [stderr]    --> src/set.rs:270:36
[INFO] [stderr]     |
[INFO] [stderr] 270 |     fn extend<I: IntoIterator<Item=(&'x str)>>(&mut self, iter: I) {
[INFO] [stderr]     |                                    ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling jemalloc-sys v0.1.8
[INFO] [stderr]     Checking jemallocator v0.1.9
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/set.rs:268:17
[INFO] [stderr]     |
[INFO] [stderr] 268 | impl<'x> Extend<(&'x str)> for TSTSet {
[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 type
[INFO] [stderr]    --> src/set.rs:270:36
[INFO] [stderr]     |
[INFO] [stderr] 270 |     fn extend<I: IntoIterator<Item=(&'x str)>>(&mut self, iter: I) {
[INFO] [stderr]     |                                    ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 04s
[INFO] running `"docker" "inspect" "979ec6e3c61f4be09a658e92f4fb7b6db8b0b76b17cf38ca873c6670408c5528"`
[INFO] running `"docker" "rm" "-f" "979ec6e3c61f4be09a658e92f4fb7b6db8b0b76b17cf38ca873c6670408c5528"`
[INFO] [stdout] 979ec6e3c61f4be09a658e92f4fb7b6db8b0b76b17cf38ca873c6670408c5528