[INFO] cloning repository https://github.com/krdln/arc-swap-benches
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krdln/arc-swap-benches" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrdln%2Farc-swap-benches", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrdln%2Farc-swap-benches'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8acf2b41e3add95df38a231cf76dd5827b03df53
[INFO] checking krdln/arc-swap-benches against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrdln%2Farc-swap-benches" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/krdln/arc-swap-benches
[INFO] finished tweaking git repo https://github.com/krdln/arc-swap-benches
[INFO] tweaked toml for git repo https://github.com/krdln/arc-swap-benches written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/krdln/arc-swap-benches on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/krdln/arc-swap-benches 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c95cd5055d5cd5247c78d936666ef4de8f61fa2aafe094bfa30c7a14ea9f9a7
[INFO] running `Command { std: "docker" "start" "-a" "5c95cd5055d5cd5247c78d936666ef4de8f61fa2aafe094bfa30c7a14ea9f9a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c95cd5055d5cd5247c78d936666ef4de8f61fa2aafe094bfa30c7a14ea9f9a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c95cd5055d5cd5247c78d936666ef4de8f61fa2aafe094bfa30c7a14ea9f9a7", kill_on_drop: false }`
[INFO] [stdout] 5c95cd5055d5cd5247c78d936666ef4de8f61fa2aafe094bfa30c7a14ea9f9a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c6508f23b8bc5f7ca34badfbce42f7cb3650dae56e42a3308e9802a22fa2858
[INFO] running `Command { std: "docker" "start" "-a" "5c6508f23b8bc5f7ca34badfbce42f7cb3650dae56e42a3308e9802a22fa2858", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]     Checking arc-swap v1.5.0
[INFO] [stderr]     Checking as-slice v0.2.1
[INFO] [stderr]     Checking aligned v0.4.0
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking my-arc-swap-bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> benches/bench.rs:137:17
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 /// Positive – num of readers, negative – special state.
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 138 |                 readers: AtomicI32::new(0),
[INFO] [stdout]     |                 -------------------------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `scoped_threads` has been stable since 1.63.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> benches/bench.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test, scoped_threads)]
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.65s
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> benches/bench.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |         pub fn read(&self) -> Guard<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] 143 |         pub fn read(&self) -> Guard<'_, T> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5c6508f23b8bc5f7ca34badfbce42f7cb3650dae56e42a3308e9802a22fa2858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c6508f23b8bc5f7ca34badfbce42f7cb3650dae56e42a3308e9802a22fa2858", kill_on_drop: false }`
[INFO] [stdout] 5c6508f23b8bc5f7ca34badfbce42f7cb3650dae56e42a3308e9802a22fa2858
