[INFO] fetching crate pi_slot 0.4.2...
[INFO] checking pi_slot-0.4.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate pi_slot 0.4.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate pi_slot 0.4.2
[INFO] finished tweaking crates.io crate pi_slot 0.4.2
[INFO] tweaked toml for crates.io crate pi_slot 0.4.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pi_slot 0.4.2 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pi_slot 0.4.2 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba16ecc217ed82ba08d081339ea91d9f29177a3f9e852def46a1b97854f006b2
[INFO] running `Command { std: "docker" "start" "-a" "ba16ecc217ed82ba08d081339ea91d9f29177a3f9e852def46a1b97854f006b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba16ecc217ed82ba08d081339ea91d9f29177a3f9e852def46a1b97854f006b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba16ecc217ed82ba08d081339ea91d9f29177a3f9e852def46a1b97854f006b2", kill_on_drop: false }`
[INFO] [stdout] ba16ecc217ed82ba08d081339ea91d9f29177a3f9e852def46a1b97854f006b2
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b331ea56dc91f618638cefd0e4e853804d69c63689d0406344567b97fe7a4a09
[INFO] running `Command { std: "docker" "start" "-a" "b331ea56dc91f618638cefd0e4e853804d69c63689d0406344567b97fe7a4a09", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking pi_null v0.1.11
[INFO] [stderr]     Checking pi_vec_remain v0.2.1
[INFO] [stderr]     Checking pi_share v0.5.2
[INFO] [stderr]     Checking pi_arr v0.30.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking pi_key_alloter v0.6.1
[INFO] [stderr]     Checking pi_slot v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:380:23
[INFO] [stdout]     |
[INFO] [stdout] 380 |     pub fn settle_key(&self) -> Drain {
[INFO] [stdout]     |                       ^^^^^     ----- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 380 |     pub fn settle_key(&self) -> Drain<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:380:23
[INFO] [stdout]     |
[INFO] [stdout] 380 |     pub fn settle_key(&self) -> Drain {
[INFO] [stdout]     |                       ^^^^^     ----- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 380 |     pub fn settle_key(&self) -> Drain<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "b331ea56dc91f618638cefd0e4e853804d69c63689d0406344567b97fe7a4a09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b331ea56dc91f618638cefd0e4e853804d69c63689d0406344567b97fe7a4a09", kill_on_drop: false }`
[INFO] [stdout] b331ea56dc91f618638cefd0e4e853804d69c63689d0406344567b97fe7a4a09