[INFO] fetching crate manual_rwlock 0.5.0...
[INFO] testing manual_rwlock-0.5.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate manual_rwlock 0.5.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate manual_rwlock 0.5.0
[INFO] finished tweaking crates.io crate manual_rwlock 0.5.0
[INFO] tweaked toml for crates.io crate manual_rwlock 0.5.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate manual_rwlock 0.5.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate manual_rwlock 0.5.0 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomic-wait v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 254bd5478b38088b653867b23658becdbd2b32365ab8a354cb024da0e2466b54
[INFO] running `Command { std: "docker" "start" "-a" "254bd5478b38088b653867b23658becdbd2b32365ab8a354cb024da0e2466b54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "254bd5478b38088b653867b23658becdbd2b32365ab8a354cb024da0e2466b54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "254bd5478b38088b653867b23658becdbd2b32365ab8a354cb024da0e2466b54", kill_on_drop: false }`
[INFO] [stdout] 254bd5478b38088b653867b23658becdbd2b32365ab8a354cb024da0e2466b54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aab9cddc329c1feda4b2db612ea01b94985d68e50e2972d73f4d0249c851a16d
[INFO] running `Command { std: "docker" "start" "-a" "aab9cddc329c1feda4b2db612ea01b94985d68e50e2972d73f4d0249c851a16d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling atomic-wait v1.1.0
[INFO] [stderr]    Compiling manual_rwlock v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:238:21
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn try_read(&self) -> LockResult<ReadGuard<T>> {
[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] 238 |     pub fn try_read(&self) -> LockResult<ReadGuard<'_, T>> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:246:17
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn read(&self) -> LockResult<ReadGuard<T>> {
[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] 246 |     pub fn read(&self) -> LockResult<ReadGuard<'_, T>> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:254:22
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn try_write(&self) -> LockResult<WriteGuard<T>> {
[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] 254 |     pub fn try_write(&self) -> LockResult<WriteGuard<'_, T>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:262:18
[INFO] [stdout]     |
[INFO] [stdout] 262 |     pub fn write(&self) -> LockResult<WriteGuard<T>> {
[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] 262 |     pub fn write(&self) -> LockResult<WriteGuard<'_, T>> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:273:30
[INFO] [stdout]     |
[INFO] [stdout] 273 |     pub fn try_read_slice<U>(&self) -> LockResult<SliceReadGuard<U>>
[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] 273 |     pub fn try_read_slice<U>(&self) -> LockResult<SliceReadGuard<'_, U>>
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:284:26
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub fn read_slice<U>(&self) -> LockResult<SliceReadGuard<U>>
[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] 284 |     pub fn read_slice<U>(&self) -> LockResult<SliceReadGuard<'_, U>>
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:295:31
[INFO] [stdout]     |
[INFO] [stdout] 295 |     pub fn try_write_slice<U>(&self) -> LockResult<SliceWriteGuard<U>>
[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] 295 |     pub fn try_write_slice<U>(&self) -> LockResult<SliceWriteGuard<'_, U>>
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:306:27
[INFO] [stdout]     |
[INFO] [stdout] 306 |     pub fn write_slice<U>(&self) -> LockResult<SliceWriteGuard<U>>
[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] 306 |     pub fn write_slice<U>(&self) -> LockResult<SliceWriteGuard<'_, U>>
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "aab9cddc329c1feda4b2db612ea01b94985d68e50e2972d73f4d0249c851a16d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aab9cddc329c1feda4b2db612ea01b94985d68e50e2972d73f4d0249c851a16d", kill_on_drop: false }`
[INFO] [stdout] aab9cddc329c1feda4b2db612ea01b94985d68e50e2972d73f4d0249c851a16d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 458b8b9256433c26d1212b912532e3a0366d74605378c05386b623acca988b93
[INFO] running `Command { std: "docker" "start" "-a" "458b8b9256433c26d1212b912532e3a0366d74605378c05386b623acca988b93", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:238:21
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn try_read(&self) -> LockResult<ReadGuard<T>> {
[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] 238 |     pub fn try_read(&self) -> LockResult<ReadGuard<'_, T>> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:246:17
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn read(&self) -> LockResult<ReadGuard<T>> {
[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] 246 |     pub fn read(&self) -> LockResult<ReadGuard<'_, T>> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:254:22
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn try_write(&self) -> LockResult<WriteGuard<T>> {
[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] 254 |     pub fn try_write(&self) -> LockResult<WriteGuard<'_, T>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:262:18
[INFO] [stdout]     |
[INFO] [stdout] 262 |     pub fn write(&self) -> LockResult<WriteGuard<T>> {
[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] 262 |     pub fn write(&self) -> LockResult<WriteGuard<'_, T>> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:273:30
[INFO] [stdout]     |
[INFO] [stdout] 273 |     pub fn try_read_slice<U>(&self) -> LockResult<SliceReadGuard<U>>
[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] 273 |     pub fn try_read_slice<U>(&self) -> LockResult<SliceReadGuard<'_, U>>
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:284:26
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub fn read_slice<U>(&self) -> LockResult<SliceReadGuard<U>>
[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] 284 |     pub fn read_slice<U>(&self) -> LockResult<SliceReadGuard<'_, U>>
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:295:31
[INFO] [stdout]     |
[INFO] [stdout] 295 |     pub fn try_write_slice<U>(&self) -> LockResult<SliceWriteGuard<U>>
[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] 295 |     pub fn try_write_slice<U>(&self) -> LockResult<SliceWriteGuard<'_, U>>
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:306:27
[INFO] [stdout]     |
[INFO] [stdout] 306 |     pub fn write_slice<U>(&self) -> LockResult<SliceWriteGuard<U>>
[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] 306 |     pub fn write_slice<U>(&self) -> LockResult<SliceWriteGuard<'_, U>>
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling manual_rwlock v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:238:21
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn try_read(&self) -> LockResult<ReadGuard<T>> {
[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] 238 |     pub fn try_read(&self) -> LockResult<ReadGuard<'_, T>> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:246:17
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn read(&self) -> LockResult<ReadGuard<T>> {
[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] 246 |     pub fn read(&self) -> LockResult<ReadGuard<'_, T>> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:254:22
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn try_write(&self) -> LockResult<WriteGuard<T>> {
[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] 254 |     pub fn try_write(&self) -> LockResult<WriteGuard<'_, T>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:262:18
[INFO] [stdout]     |
[INFO] [stdout] 262 |     pub fn write(&self) -> LockResult<WriteGuard<T>> {
[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] 262 |     pub fn write(&self) -> LockResult<WriteGuard<'_, T>> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:273:30
[INFO] [stdout]     |
[INFO] [stdout] 273 |     pub fn try_read_slice<U>(&self) -> LockResult<SliceReadGuard<U>>
[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] 273 |     pub fn try_read_slice<U>(&self) -> LockResult<SliceReadGuard<'_, U>>
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:284:26
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub fn read_slice<U>(&self) -> LockResult<SliceReadGuard<U>>
[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] 284 |     pub fn read_slice<U>(&self) -> LockResult<SliceReadGuard<'_, U>>
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:295:31
[INFO] [stdout]     |
[INFO] [stdout] 295 |     pub fn try_write_slice<U>(&self) -> LockResult<SliceWriteGuard<U>>
[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] 295 |     pub fn try_write_slice<U>(&self) -> LockResult<SliceWriteGuard<'_, U>>
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:306:27
[INFO] [stdout]     |
[INFO] [stdout] 306 |     pub fn write_slice<U>(&self) -> LockResult<SliceWriteGuard<U>>
[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] 306 |     pub fn write_slice<U>(&self) -> LockResult<SliceWriteGuard<'_, U>>
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "458b8b9256433c26d1212b912532e3a0366d74605378c05386b623acca988b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "458b8b9256433c26d1212b912532e3a0366d74605378c05386b623acca988b93", kill_on_drop: false }`
[INFO] [stdout] 458b8b9256433c26d1212b912532e3a0366d74605378c05386b623acca988b93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e2b2ee1894d6c2a4a3d2732ec6547e0e474bf2c043f602deefc7f25a7c40a202
[INFO] running `Command { std: "docker" "start" "-a" "e2b2ee1894d6c2a4a3d2732ec6547e0e474bf2c043f602deefc7f25a7c40a202", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:238:21
[INFO] [stderr]     |
[INFO] [stderr] 238 |     pub fn try_read(&self) -> LockResult<ReadGuard<T>> {
[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] 238 |     pub fn try_read(&self) -> LockResult<ReadGuard<'_, T>> {
[INFO] [stderr]     |                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:246:17
[INFO] [stderr]     |
[INFO] [stderr] 246 |     pub fn read(&self) -> LockResult<ReadGuard<T>> {
[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] 246 |     pub fn read(&self) -> LockResult<ReadGuard<'_, T>> {
[INFO] [stderr]     |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:254:22
[INFO] [stderr]     |
[INFO] [stderr] 254 |     pub fn try_write(&self) -> LockResult<WriteGuard<T>> {
[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] 254 |     pub fn try_write(&self) -> LockResult<WriteGuard<'_, T>> {
[INFO] [stderr]     |                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:262:18
[INFO] [stderr]     |
[INFO] [stderr] 262 |     pub fn write(&self) -> LockResult<WriteGuard<T>> {
[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] 262 |     pub fn write(&self) -> LockResult<WriteGuard<'_, T>> {
[INFO] [stderr]     |                                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:273:30
[INFO] [stderr]     |
[INFO] [stderr] 273 |     pub fn try_read_slice<U>(&self) -> LockResult<SliceReadGuard<U>>
[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] 273 |     pub fn try_read_slice<U>(&self) -> LockResult<SliceReadGuard<'_, U>>
[INFO] [stderr]     |                                                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:284:26
[INFO] [stderr]     |
[INFO] [stderr] 284 |     pub fn read_slice<U>(&self) -> LockResult<SliceReadGuard<U>>
[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] 284 |     pub fn read_slice<U>(&self) -> LockResult<SliceReadGuard<'_, U>>
[INFO] [stderr]     |                                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:295:31
[INFO] [stderr]     |
[INFO] [stderr] 295 |     pub fn try_write_slice<U>(&self) -> LockResult<SliceWriteGuard<U>>
[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] 295 |     pub fn try_write_slice<U>(&self) -> LockResult<SliceWriteGuard<'_, U>>
[INFO] [stderr]     |                                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:306:27
[INFO] [stderr]     |
[INFO] [stderr] 306 |     pub fn write_slice<U>(&self) -> LockResult<SliceWriteGuard<U>>
[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] 306 |     pub fn write_slice<U>(&self) -> LockResult<SliceWriteGuard<'_, U>>
[INFO] [stderr]     |                                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: `manual_rwlock` (lib) generated 8 warnings (run `cargo fix --lib -p manual_rwlock` to apply 8 suggestions)
[INFO] [stderr] warning: `manual_rwlock` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/manual_rwlock-7cd0da44de0a2098)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::early_release ... ok
[INFO] [stdout] test tests::slice_read ... ok
[INFO] [stdout] test tests::write_early_release ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/manual_rwlock-d6c24f4df4349eec)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests manual_rwlock
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/read_guard.rs - read_guard::ReadGuard<'a,T>::to_write (line 20) ... ok
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/slice_read_guard.rs - slice_read_guard::SliceReadGuard (line 10) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/read_guard.rs - read_guard::ReadGuard<'a,T> (line 92) ... ok
[INFO] [stdout] test src/slice_write_guard.rs - slice_write_guard::SliceWriteGuard (line 11) ... ok
[INFO] [stdout] test src/read_guard.rs - read_guard::ReadGuard<'a,T>::early_release (line 41) ... ok
[INFO] [stdout] test src/slice_read_guard.rs - slice_read_guard::SliceReadGuard<'a,T>::early_release (line 43) ... ok
[INFO] [stdout] test src/slice_write_guard.rs - slice_write_guard::SliceWriteGuard<'a,T>::early_release (line 38) ... ok
[INFO] [stdout] test src/write_guard.rs - write_guard::WriteGuard<'a,T>::early_release (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e2b2ee1894d6c2a4a3d2732ec6547e0e474bf2c043f602deefc7f25a7c40a202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2b2ee1894d6c2a4a3d2732ec6547e0e474bf2c043f602deefc7f25a7c40a202", kill_on_drop: false }`
[INFO] [stdout] e2b2ee1894d6c2a4a3d2732ec6547e0e474bf2c043f602deefc7f25a7c40a202