[INFO] cloning repository https://github.com/billchen-818/02-concurrency [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/billchen-818/02-concurrency" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbillchen-818%2F02-concurrency", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbillchen-818%2F02-concurrency'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b96d855f759cedfbe801eb0dc815673371175507 [INFO] checking billchen-818/02-concurrency against try#79452e8441468c5568c20bfca2aa1fe75b645b2d for pr-152210 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbillchen-818%2F02-concurrency" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/billchen-818/02-concurrency [INFO] finished tweaking git repo https://github.com/billchen-818/02-concurrency [INFO] tweaked toml for git repo https://github.com/billchen-818/02-concurrency written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/billchen-818/02-concurrency on toolchain 79452e8441468c5568c20bfca2aa1fe75b645b2d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/billchen-818/02-concurrency 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" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rustversion v1.0.16 [INFO] [stderr] Downloaded oneshot v0.1.6 [INFO] [stderr] Downloaded anyhow v1.0.83 [INFO] [stderr] Downloaded syn v2.0.61 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 076221efa7fb3880dd7354adbbebd20a69073228d9481951e28906631b5693b8 [INFO] running `Command { std: "docker" "start" "-a" "076221efa7fb3880dd7354adbbebd20a69073228d9481951e28906631b5693b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "076221efa7fb3880dd7354adbbebd20a69073228d9481951e28906631b5693b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "076221efa7fb3880dd7354adbbebd20a69073228d9481951e28906631b5693b8", kill_on_drop: false }` [INFO] [stdout] 076221efa7fb3880dd7354adbbebd20a69073228d9481951e28906631b5693b8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c8d42e9089c5ce934610283ee34abf036b68065ea5e94e503c70ff11ea99fd70 [INFO] running `Command { std: "docker" "start" "-a" "c8d42e9089c5ce934610283ee34abf036b68065ea5e94e503c70ff11ea99fd70", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.154 [INFO] [stderr] Compiling proc-macro2 v1.0.82 [INFO] [stderr] Compiling anyhow v1.0.83 [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Checking oneshot v0.1.6 [INFO] [stderr] Checking tracing-log v0.2.0 [INFO] [stderr] Checking tracing-subscriber v0.3.18 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Compiling syn v2.0.61 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking dashmap v5.5.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Checking tokio v1.37.0 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking concurrency v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/vector.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn iter(&self) -> std::slice::Iter { [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] 17 | pub fn iter(&self) -> std::slice::Iter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/vector.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn iter(&self) -> std::slice::Iter { [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] 17 | pub fn iter(&self) -> std::slice::Iter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.73s [INFO] running `Command { std: "docker" "inspect" "c8d42e9089c5ce934610283ee34abf036b68065ea5e94e503c70ff11ea99fd70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8d42e9089c5ce934610283ee34abf036b68065ea5e94e503c70ff11ea99fd70", kill_on_drop: false }` [INFO] [stdout] c8d42e9089c5ce934610283ee34abf036b68065ea5e94e503c70ff11ea99fd70