[INFO] cloning repository https://github.com/conradludgate/hashbrown-inc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/conradludgate/hashbrown-inc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Fhashbrown-inc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Fhashbrown-inc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e24553f611be50009e540aad8a6ea6289371f7d
[INFO] checking conradludgate/hashbrown-inc against f10db292a3733b5c67c8da8c7661195ff4b05774 for pr-158914
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Fhashbrown-inc" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/conradludgate/hashbrown-inc
[INFO] finished tweaking git repo https://github.com/conradludgate/hashbrown-inc
[INFO] tweaked toml for git repo https://github.com/conradludgate/hashbrown-inc written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/conradludgate/hashbrown-inc on toolchain f10db292a3733b5c67c8da8c7661195ff4b05774
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f10db292a3733b5c67c8da8c7661195ff4b05774" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/conradludgate/hashbrown-inc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f10db292a3733b5c67c8da8c7661195ff4b05774" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/conradludgate/hashbrown`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded higher-kinded-types v0.1.1
[INFO] [stderr]   Downloaded polonius-the-crab v0.4.2
[INFO] [stderr]   Downloaded never-say-never v6.6.666
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 868969e6a5df5508ab29ff5840671a28e1ee6bfb773e44d25039cca4f6151bba
[INFO] running `Command { std: "docker" "start" "868969e6a5df5508ab29ff5840671a28e1ee6bfb773e44d25039cca4f6151bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "868969e6a5df5508ab29ff5840671a28e1ee6bfb773e44d25039cca4f6151bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "868969e6a5df5508ab29ff5840671a28e1ee6bfb773e44d25039cca4f6151bba" "/opt/rustwide/cargo-home/bin/cargo" "+f10db292a3733b5c67c8da8c7661195ff4b05774" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "868969e6a5df5508ab29ff5840671a28e1ee6bfb773e44d25039cca4f6151bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "868969e6a5df5508ab29ff5840671a28e1ee6bfb773e44d25039cca4f6151bba" "/opt/rustwide/cargo-home/bin/cargo" "+f10db292a3733b5c67c8da8c7661195ff4b05774" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking never-say-never v6.6.666
[INFO] [stderr]     Checking hashbrown v0.15.2 (https://github.com/conradludgate/hashbrown?branch=draining-table#40514096)
[INFO] [stderr]     Checking flate2 v1.1.1
[INFO] [stderr]     Checking higher-kinded-types v0.1.1
[INFO] [stderr]     Checking polonius-the-crab v0.4.2
[INFO] [stderr]     Checking hdrhistogram v7.5.4
[INFO] [stderr]     Checking hashbrown-inc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/trie.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub(crate) fn iter_mut(&mut self) -> TableIterMut<T> {
[INFO] [stdout]    |                            ^^^^^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub(crate) fn iter_mut(&mut self) -> TableIterMut<'_, T> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> benches/insert.rs:95:39
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn bench_inner(rounds: usize, f: &mut (dyn FnMut() -> Duration)) -> Histogram<u64> {
[INFO] [stdout]    |                                       ^                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 95 - fn bench_inner(rounds: usize, f: &mut (dyn FnMut() -> Duration)) -> Histogram<u64> {
[INFO] [stdout] 95 + fn bench_inner(rounds: usize, f: &mut dyn FnMut() -> Duration) -> Histogram<u64> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> benches/get.rs:95:39
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn bench_inner(rounds: usize, f: &mut (dyn FnMut() -> Duration)) -> Histogram<u64> {
[INFO] [stdout]    |                                       ^                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 95 - fn bench_inner(rounds: usize, f: &mut (dyn FnMut() -> Duration)) -> Histogram<u64> {
[INFO] [stdout] 95 + fn bench_inner(rounds: usize, f: &mut dyn FnMut() -> Duration) -> Histogram<u64> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/trie.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub(crate) fn iter_mut(&mut self) -> TableIterMut<T> {
[INFO] [stdout]    |                            ^^^^^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub(crate) fn iter_mut(&mut self) -> TableIterMut<'_, T> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.50s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: higher-kinded-types v0.1.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "868969e6a5df5508ab29ff5840671a28e1ee6bfb773e44d25039cca4f6151bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "868969e6a5df5508ab29ff5840671a28e1ee6bfb773e44d25039cca4f6151bba", kill_on_drop: false }`
[INFO] [stdout] 868969e6a5df5508ab29ff5840671a28e1ee6bfb773e44d25039cca4f6151bba
