[INFO] fetching crate ringbuf 0.4.8...
[INFO] building ringbuf-0.4.8 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate ringbuf 0.4.8 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate ringbuf 0.4.8
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ringbuf 0.4.8
[INFO] tweaked toml for crates.io crate ringbuf 0.4.8 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ringbuf 0.4.8 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ringbuf 0.4.8 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lock-free-static v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 304b30216f8e0cbb1b516acdb6a35e1c1d99ba6121cb59e6e5f61c4606847cb4
[INFO] running `Command { std: "docker" "start" "-a" "304b30216f8e0cbb1b516acdb6a35e1c1d99ba6121cb59e6e5f61c4606847cb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "304b30216f8e0cbb1b516acdb6a35e1c1d99ba6121cb59e6e5f61c4606847cb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "304b30216f8e0cbb1b516acdb6a35e1c1d99ba6121cb59e6e5f61c4606847cb4", kill_on_drop: false }`
[INFO] [stdout] 304b30216f8e0cbb1b516acdb6a35e1c1d99ba6121cb59e6e5f61c4606847cb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd199bba94402b86858c046ddddb6412fd0e11d5fe8589f48a60e5a4c7f1e9cb
[INFO] running `Command { std: "docker" "start" "-a" "cd199bba94402b86858c046ddddb6412fd0e11d5fe8589f48a60e5a4c7f1e9cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling ringbuf v0.4.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/traits/consumer.rs:188:17
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn pop_iter(&mut self) -> PopIter<Self> {
[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] 188 |     fn pop_iter(&mut self) -> PopIter<'_, Self> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "cd199bba94402b86858c046ddddb6412fd0e11d5fe8589f48a60e5a4c7f1e9cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd199bba94402b86858c046ddddb6412fd0e11d5fe8589f48a60e5a4c7f1e9cb", kill_on_drop: false }`
[INFO] [stdout] cd199bba94402b86858c046ddddb6412fd0e11d5fe8589f48a60e5a4c7f1e9cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efd336c4c6aacc1e3a1047835ea7921ed4ec5f5b011db803b9f9a7d08d455802
[INFO] running `Command { std: "docker" "start" "-a" "efd336c4c6aacc1e3a1047835ea7921ed4ec5f5b011db803b9f9a7d08d455802", kill_on_drop: false }`
[INFO] [stderr]    Compiling lock-free-static v0.2.1
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/traits/consumer.rs:188:17
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn pop_iter(&mut self) -> PopIter<Self> {
[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] 188 |     fn pop_iter(&mut self) -> PopIter<'_, Self> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ringbuf v0.4.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/traits/consumer.rs:188:17
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn pop_iter(&mut self) -> PopIter<Self> {
[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] 188 |     fn pop_iter(&mut self) -> PopIter<'_, Self> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.48s
[INFO] running `Command { std: "docker" "inspect" "efd336c4c6aacc1e3a1047835ea7921ed4ec5f5b011db803b9f9a7d08d455802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efd336c4c6aacc1e3a1047835ea7921ed4ec5f5b011db803b9f9a7d08d455802", kill_on_drop: false }`
[INFO] [stdout] efd336c4c6aacc1e3a1047835ea7921ed4ec5f5b011db803b9f9a7d08d455802