[INFO] fetching crate ringbuf-blocking 0.1.0-rc.5...
[INFO] building ringbuf-blocking-0.1.0-rc.5 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate ringbuf-blocking 0.1.0-rc.5 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate ringbuf-blocking 0.1.0-rc.5
[INFO] finished tweaking crates.io crate ringbuf-blocking 0.1.0-rc.5
[INFO] tweaked toml for crates.io crate ringbuf-blocking 0.1.0-rc.5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ringbuf-blocking 0.1.0-rc.5 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ringbuf-blocking 0.1.0-rc.5 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8761263eb6e4ff089c4c33318f1c78de5eca367cd4f7abf93c01c704ed7812e
[INFO] running `Command { std: "docker" "start" "-a" "c8761263eb6e4ff089c4c33318f1c78de5eca367cd4f7abf93c01c704ed7812e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8761263eb6e4ff089c4c33318f1c78de5eca367cd4f7abf93c01c704ed7812e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8761263eb6e4ff089c4c33318f1c78de5eca367cd4f7abf93c01c704ed7812e", kill_on_drop: false }`
[INFO] [stdout] c8761263eb6e4ff089c4c33318f1c78de5eca367cd4f7abf93c01c704ed7812e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74b780c1425563ee6ccde855c609b4b725280de932e5cf9412d92cd182cf6e03
[INFO] running `Command { std: "docker" "start" "-a" "74b780c1425563ee6ccde855c609b4b725280de932e5cf9412d92cd182cf6e03", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling ringbuf v0.4.8
[INFO] [stderr]    Compiling ringbuf-blocking v0.1.0-rc.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn take_iter(&self, timeout: Option<Duration>) -> TakeIter<Self> {
[INFO] [stdout]    |                  ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^^ the same lifetime is hidden 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] 40 |     fn take_iter(&self, timeout: Option<Duration>) -> TakeIter<'_, Self> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "74b780c1425563ee6ccde855c609b4b725280de932e5cf9412d92cd182cf6e03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b780c1425563ee6ccde855c609b4b725280de932e5cf9412d92cd182cf6e03", kill_on_drop: false }`
[INFO] [stdout] 74b780c1425563ee6ccde855c609b4b725280de932e5cf9412d92cd182cf6e03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bc4d3d2e34741fd0cc3f5ddd0844785c2100af0604ab38bd2349c48a84caee1
[INFO] running `Command { std: "docker" "start" "-a" "2bc4d3d2e34741fd0cc3f5ddd0844785c2100af0604ab38bd2349c48a84caee1", kill_on_drop: false }`
[INFO] [stderr]    Compiling ringbuf-blocking v0.1.0-rc.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn take_iter(&self, timeout: Option<Duration>) -> TakeIter<Self> {
[INFO] [stdout]    |                  ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^^ the same lifetime is hidden 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] 40 |     fn take_iter(&self, timeout: Option<Duration>) -> TakeIter<'_, Self> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn take_iter(&self, timeout: Option<Duration>) -> TakeIter<Self> {
[INFO] [stdout]    |                  ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^^ the same lifetime is hidden 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] 40 |     fn take_iter(&self, timeout: Option<Duration>) -> TakeIter<'_, Self> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "2bc4d3d2e34741fd0cc3f5ddd0844785c2100af0604ab38bd2349c48a84caee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bc4d3d2e34741fd0cc3f5ddd0844785c2100af0604ab38bd2349c48a84caee1", kill_on_drop: false }`
[INFO] [stdout] 2bc4d3d2e34741fd0cc3f5ddd0844785c2100af0604ab38bd2349c48a84caee1