[INFO] fetching crate atomic_pingpong 0.2.3...
[INFO] testing atomic_pingpong-0.2.3 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate atomic_pingpong 0.2.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate atomic_pingpong 0.2.3
[INFO] finished tweaking crates.io crate atomic_pingpong 0.2.3
[INFO] tweaked toml for crates.io crate atomic_pingpong 0.2.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate atomic_pingpong 0.2.3 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate atomic_pingpong 0.2.3 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48ae79381bfa37112f4e8f5cdd6711e63c266251938a6c445379a3b67056a48f
[INFO] running `Command { std: "docker" "start" "-a" "48ae79381bfa37112f4e8f5cdd6711e63c266251938a6c445379a3b67056a48f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48ae79381bfa37112f4e8f5cdd6711e63c266251938a6c445379a3b67056a48f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48ae79381bfa37112f4e8f5cdd6711e63c266251938a6c445379a3b67056a48f", kill_on_drop: false }`
[INFO] [stdout] 48ae79381bfa37112f4e8f5cdd6711e63c266251938a6c445379a3b67056a48f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca50dd6670e3e0db1a80a0b16dbace808a2da6a9485d47bb90fdf655a7f276fc
[INFO] running `Command { std: "docker" "start" "-a" "ca50dd6670e3e0db1a80a0b16dbace808a2da6a9485d47bb90fdf655a7f276fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling atomic_pingpong v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:326:17
[INFO] [stdout]     |
[INFO] [stdout] 326 |     pub fn read(&self) -> Option<Ref<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] 326 |     pub fn read(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:335:22
[INFO] [stdout]     |
[INFO] [stdout] 335 |     pub fn read_once(&self) -> Option<Ref<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] 335 |     pub fn read_once(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:343:18
[INFO] [stdout]     |
[INFO] [stdout] 343 |     pub fn write(&self) -> Option<RefMut<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] 343 |     pub fn write(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:353:29
[INFO] [stdout]     |
[INFO] [stdout] 353 |     pub fn write_no_discard(&self) -> Option<RefMut<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] 353 |     pub fn write_no_discard(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "ca50dd6670e3e0db1a80a0b16dbace808a2da6a9485d47bb90fdf655a7f276fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca50dd6670e3e0db1a80a0b16dbace808a2da6a9485d47bb90fdf655a7f276fc", kill_on_drop: false }`
[INFO] [stdout] ca50dd6670e3e0db1a80a0b16dbace808a2da6a9485d47bb90fdf655a7f276fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e888d7c03f04f95c64dd9a366f49836063d5fb971cdd2654c6d748d32bad978a
[INFO] running `Command { std: "docker" "start" "-a" "e888d7c03f04f95c64dd9a366f49836063d5fb971cdd2654c6d748d32bad978a", kill_on_drop: false }`
[INFO] [stderr]    Compiling atomic_pingpong v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:326:17
[INFO] [stdout]     |
[INFO] [stdout] 326 |     pub fn read(&self) -> Option<Ref<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] 326 |     pub fn read(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:335:22
[INFO] [stdout]     |
[INFO] [stdout] 335 |     pub fn read_once(&self) -> Option<Ref<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] 335 |     pub fn read_once(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:343:18
[INFO] [stdout]     |
[INFO] [stdout] 343 |     pub fn write(&self) -> Option<RefMut<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] 343 |     pub fn write(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:353:29
[INFO] [stdout]     |
[INFO] [stdout] 353 |     pub fn write_no_discard(&self) -> Option<RefMut<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] 353 |     pub fn write_no_discard(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:326:17
[INFO] [stdout]     |
[INFO] [stdout] 326 |     pub fn read(&self) -> Option<Ref<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] 326 |     pub fn read(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:335:22
[INFO] [stdout]     |
[INFO] [stdout] 335 |     pub fn read_once(&self) -> Option<Ref<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] 335 |     pub fn read_once(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:343:18
[INFO] [stdout]     |
[INFO] [stdout] 343 |     pub fn write(&self) -> Option<RefMut<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] 343 |     pub fn write(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:353:29
[INFO] [stdout]     |
[INFO] [stdout] 353 |     pub fn write_no_discard(&self) -> Option<RefMut<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] 353 |     pub fn write_no_discard(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "e888d7c03f04f95c64dd9a366f49836063d5fb971cdd2654c6d748d32bad978a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e888d7c03f04f95c64dd9a366f49836063d5fb971cdd2654c6d748d32bad978a", kill_on_drop: false }`
[INFO] [stdout] e888d7c03f04f95c64dd9a366f49836063d5fb971cdd2654c6d748d32bad978a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ad3ecd81a137c3294cffadd2aa050f706efe5e24efdc4c79306089263e09e25
[INFO] running `Command { std: "docker" "start" "-a" "2ad3ecd81a137c3294cffadd2aa050f706efe5e24efdc4c79306089263e09e25", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:326:17
[INFO] [stderr]     |
[INFO] [stderr] 326 |     pub fn read(&self) -> Option<Ref<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] 326 |     pub fn read(&self) -> Option<Ref<'_, T>> {
[INFO] [stderr]     |                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:335:22
[INFO] [stderr]     |
[INFO] [stderr] 335 |     pub fn read_once(&self) -> Option<Ref<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] 335 |     pub fn read_once(&self) -> Option<Ref<'_, T>> {
[INFO] [stderr]     |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:343:18
[INFO] [stderr]     |
[INFO] [stderr] 343 |     pub fn write(&self) -> Option<RefMut<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] 343 |     pub fn write(&self) -> Option<RefMut<'_, T>> {
[INFO] [stderr]     |                                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:353:29
[INFO] [stderr]     |
[INFO] [stderr] 353 |     pub fn write_no_discard(&self) -> Option<RefMut<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] 353 |     pub fn write_no_discard(&self) -> Option<RefMut<'_, T>> {
[INFO] [stderr]     |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: `atomic_pingpong` (lib) generated 4 warnings (run `cargo fix --lib -p atomic_pingpong` to apply 4 suggestions)
[INFO] [stderr] warning: `atomic_pingpong` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/atomic_pingpong-2d8ffa406f54ae59)
[INFO] [stderr]      Running tests/basics.rs (/opt/rustwide/target/debug/deps/basics-6081573a0dfb8caf)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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 13 tests
[INFO] [stdout] test no_double_read ... ok
[INFO] [stdout] test no_swap_after_interleaved ... ok
[INFO] [stdout] test no_double_write ... ok
[INFO] [stdout] test read_unchecked ... ok
[INFO] [stdout] test release_read ... ok
[INFO] [stdout] test release_write ... ok
[INFO] [stdout] test swap_after_read ... ok
[INFO] [stdout] test swap_after_write ... ok
[INFO] [stdout] test read_once ... ok
[INFO] [stdout] test write_no_discard ... ok
[INFO] [stdout] test write_unchecked_and_read_once ... ok
[INFO] [stdout] test write_no_discard_while_reading ... ok
[INFO] [stdout] test read_once_after_read ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests atomic_pingpong
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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] running `Command { std: "docker" "inspect" "2ad3ecd81a137c3294cffadd2aa050f706efe5e24efdc4c79306089263e09e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ad3ecd81a137c3294cffadd2aa050f706efe5e24efdc4c79306089263e09e25", kill_on_drop: false }`
[INFO] [stdout] 2ad3ecd81a137c3294cffadd2aa050f706efe5e24efdc4c79306089263e09e25
