[INFO] cloning repository https://github.com/skorobogatydmitry/rust-atomics-n-locks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skorobogatydmitry/rust-atomics-n-locks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskorobogatydmitry%2Frust-atomics-n-locks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskorobogatydmitry%2Frust-atomics-n-locks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2897c52991262b6a537938d06d756b2a42286fd
[INFO] testing skorobogatydmitry/rust-atomics-n-locks against 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskorobogatydmitry%2Frust-atomics-n-locks" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/skorobogatydmitry/rust-atomics-n-locks
[INFO] finished tweaking git repo https://github.com/skorobogatydmitry/rust-atomics-n-locks
[INFO] tweaked toml for git repo https://github.com/skorobogatydmitry/rust-atomics-n-locks written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/skorobogatydmitry/rust-atomics-n-locks on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/skorobogatydmitry/rust-atomics-n-locks 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3c86ab4021bd45f3470d6dcf3e7c95173c002dcd99977657adc23349ff6998c
[INFO] running `Command { std: "docker" "start" "-a" "c3c86ab4021bd45f3470d6dcf3e7c95173c002dcd99977657adc23349ff6998c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3c86ab4021bd45f3470d6dcf3e7c95173c002dcd99977657adc23349ff6998c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3c86ab4021bd45f3470d6dcf3e7c95173c002dcd99977657adc23349ff6998c", kill_on_drop: false }`
[INFO] [stdout] c3c86ab4021bd45f3470d6dcf3e7c95173c002dcd99977657adc23349ff6998c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76b10a2500d4aac950988eefc490ddc43dc5ab179f93246d4d840199f32e4608
[INFO] running `Command { std: "docker" "start" "-a" "76b10a2500d4aac950988eefc490ddc43dc5ab179f93246d4d840199f32e4608", kill_on_drop: false }`
[INFO] [stderr]    Compiling strum v0.27.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling atomic-wait v1.1.0
[INFO] [stderr]    Compiling strum_macros v0.27.1
[INFO] [stderr]    Compiling atomics-n-locks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn read(&self) -> ReadGuard<Y> {
[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] 61 |     pub fn read(&self) -> ReadGuard<'_, Y> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:83:18
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn write(&self) -> WriteGuard<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn write(&self) -> WriteGuard<'_, Y> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:164:17
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn read(&self) -> ReadGuard2<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn read(&self) -> ReadGuard2<'_, Y> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:182:18
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn write(&self) -> WriteGuard2<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn write(&self) -> WriteGuard2<'_, Y> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:272:17
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn read(&self) -> ReadGuard3<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn read(&self) -> ReadGuard3<'_, Y> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:293:18
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn write(&self) -> WriteGuard3<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn write(&self) -> WriteGuard3<'_, Y> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.36s
[INFO] running `Command { std: "docker" "inspect" "76b10a2500d4aac950988eefc490ddc43dc5ab179f93246d4d840199f32e4608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b10a2500d4aac950988eefc490ddc43dc5ab179f93246d4d840199f32e4608", kill_on_drop: false }`
[INFO] [stdout] 76b10a2500d4aac950988eefc490ddc43dc5ab179f93246d4d840199f32e4608
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd696fd2730a561163ba7a1ba11c42fc63178944e67eb44d3d5c0b49e281b26e
[INFO] running `Command { std: "docker" "start" "-a" "cd696fd2730a561163ba7a1ba11c42fc63178944e67eb44d3d5c0b49e281b26e", kill_on_drop: false }`
[INFO] [stderr]    Compiling atomics-n-locks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn read(&self) -> ReadGuard<Y> {
[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] 61 |     pub fn read(&self) -> ReadGuard<'_, Y> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:83:18
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn write(&self) -> WriteGuard<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn write(&self) -> WriteGuard<'_, Y> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:164:17
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn read(&self) -> ReadGuard2<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn read(&self) -> ReadGuard2<'_, Y> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:182:18
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn write(&self) -> WriteGuard2<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn write(&self) -> WriteGuard2<'_, Y> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:272:17
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn read(&self) -> ReadGuard3<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn read(&self) -> ReadGuard3<'_, Y> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:293:18
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn write(&self) -> WriteGuard3<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn write(&self) -> WriteGuard3<'_, Y> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn read(&self) -> ReadGuard<Y> {
[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] 61 |     pub fn read(&self) -> ReadGuard<'_, Y> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:83:18
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn write(&self) -> WriteGuard<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn write(&self) -> WriteGuard<'_, Y> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:164:17
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn read(&self) -> ReadGuard2<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn read(&self) -> ReadGuard2<'_, Y> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:182:18
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn write(&self) -> WriteGuard2<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn write(&self) -> WriteGuard2<'_, Y> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:272:17
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn read(&self) -> ReadGuard3<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn read(&self) -> ReadGuard3<'_, Y> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:293:18
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn write(&self) -> WriteGuard3<Y> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn write(&self) -> WriteGuard3<'_, Y> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "cd696fd2730a561163ba7a1ba11c42fc63178944e67eb44d3d5c0b49e281b26e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd696fd2730a561163ba7a1ba11c42fc63178944e67eb44d3d5c0b49e281b26e", kill_on_drop: false }`
[INFO] [stdout] cd696fd2730a561163ba7a1ba11c42fc63178944e67eb44d3d5c0b49e281b26e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74ff633997ca958cef19a5d8a473fda5e6a34ed42451d25b34f2f22517d2e551
[INFO] running `Command { std: "docker" "start" "-a" "74ff633997ca958cef19a5d8a473fda5e6a34ed42451d25b34f2f22517d2e551", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:61:17
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn read(&self) -> ReadGuard<Y> {
[INFO] [stderr]    |                 ^^^^^     ------------ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn read(&self) -> ReadGuard<'_, Y> {
[INFO] [stderr]    |                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:83:18
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn write(&self) -> WriteGuard<Y> {
[INFO] [stderr]    |                  ^^^^^     ------------- the same lifetime is hidden here
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn write(&self) -> WriteGuard<'_, Y> {
[INFO] [stderr]    |                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:164:17
[INFO] [stderr]     |
[INFO] [stderr] 164 |     pub fn read(&self) -> ReadGuard2<Y> {
[INFO] [stderr]     |                 ^^^^^     ------------- the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 164 |     pub fn read(&self) -> ReadGuard2<'_, Y> {
[INFO] [stderr]     |                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:182:18
[INFO] [stderr]     |
[INFO] [stderr] 182 |     pub fn write(&self) -> WriteGuard2<Y> {
[INFO] [stderr]     |                  ^^^^^     -------------- the same lifetime is hidden here
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 182 |     pub fn write(&self) -> WriteGuard2<'_, Y> {
[INFO] [stderr]     |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:272:17
[INFO] [stderr]     |
[INFO] [stderr] 272 |     pub fn read(&self) -> ReadGuard3<Y> {
[INFO] [stderr]     |                 ^^^^^     ------------- the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 272 |     pub fn read(&self) -> ReadGuard3<'_, Y> {
[INFO] [stderr]     |                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/ch9_building_our_own_locks/p3_read_write_lock.rs:293:18
[INFO] [stderr]     |
[INFO] [stderr] 293 |     pub fn write(&self) -> WriteGuard3<Y> {
[INFO] [stderr]     |                  ^^^^^     -------------- the same lifetime is hidden here
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 293 |     pub fn write(&self) -> WriteGuard3<'_, Y> {
[INFO] [stderr]     |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: `atomics-n-locks` (lib) generated 6 warnings
[INFO] [stderr] warning: `atomics-n-locks` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/atomics_n_locks-53e9da9da8d3104a)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test ch10_ideas_and_inspirations::semaphore::test::test_semaphore_limit ... ok
[INFO] [stdout] test ch6_building_our_own_arc::basic::test::test ... ok
[INFO] [stdout] test ch6_building_our_own_arc::weak::test::test ... ok
[INFO] [stdout] test ch6_building_our_own_arc::optimization::test::test_annoying ... ok
[INFO] [stdout] test ch6_building_our_own_arc::optimization::test::test ... ok
[INFO] [stdout] test ch10_ideas_and_inspirations::semaphore::test::test_new_panics - should panic ... ok
[INFO] [stdout] test ch10_ideas_and_inspirations::rcu::test_simple_rcu ... ok
[INFO] [stdout] test ch10_ideas_and_inspirations::semaphore::test::test_mutex ... ok
[INFO] [stdout] test ch10_ideas_and_inspirations::seqlock::test::test_multiple_writers ... ok
[INFO] [stdout] test ch10_ideas_and_inspirations::seqlock::test::test_writer_block_readers ... FAILED
[INFO] [stdout] test ch9_building_our_own_locks::p1_mutex::test::test_trivial_uncontended_optimized_mutex ... ok
[INFO] [stdout] test ch7_understanding_the_processor::test::ordering_bug ... ok
[INFO] [stdout] test ch9_building_our_own_locks::p2_condition_variable::test::test_condvar ... ok
[INFO] [stdout] test ch9_building_our_own_locks::p1_mutex::test::test_concurrent_lock_attempts_optimized_mutex ... ok
[INFO] [stdout] test ch9_building_our_own_locks::p1_mutex::test::test_trivial_uncontended_simple_mutex ... ok
[INFO] [stdout] test ch9_building_our_own_locks::p1_mutex::test::test_concurrent_lock_attempts_simple_mutex ... ok
[INFO] [stdout] test ch10_ideas_and_inspirations::semaphore::test::test_semaphore has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "74ff633997ca958cef19a5d8a473fda5e6a34ed42451d25b34f2f22517d2e551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74ff633997ca958cef19a5d8a473fda5e6a34ed42451d25b34f2f22517d2e551", kill_on_drop: false }`
[INFO] [stdout] 74ff633997ca958cef19a5d8a473fda5e6a34ed42451d25b34f2f22517d2e551
