[INFO] fetching crate atomic_pingpong 0.2.3...
[INFO] checking atomic_pingpong-0.2.3 against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] extracting crate atomic_pingpong 0.2.3 into /workspace/builds/worker-7-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-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate atomic_pingpong 0.2.3 on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73fb8b33952cca49c87c81df33329830fa2554534cedd4f56924b93182486bcd
[INFO] running `Command { std: "docker" "start" "-a" "73fb8b33952cca49c87c81df33329830fa2554534cedd4f56924b93182486bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73fb8b33952cca49c87c81df33329830fa2554534cedd4f56924b93182486bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73fb8b33952cca49c87c81df33329830fa2554534cedd4f56924b93182486bcd", kill_on_drop: false }`
[INFO] [stdout] 73fb8b33952cca49c87c81df33329830fa2554534cedd4f56924b93182486bcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d4688d6522477ebe6c7d5f964c0c74f1dfa8d12a554bcbee4f4bc84ad5e4471
[INFO] running `Command { std: "docker" "start" "-a" "4d4688d6522477ebe6c7d5f964c0c74f1dfa8d12a554bcbee4f4bc84ad5e4471", kill_on_drop: false }`
[INFO] [stderr]     Checking 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 `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "4d4688d6522477ebe6c7d5f964c0c74f1dfa8d12a554bcbee4f4bc84ad5e4471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d4688d6522477ebe6c7d5f964c0c74f1dfa8d12a554bcbee4f4bc84ad5e4471", kill_on_drop: false }`
[INFO] [stdout] 4d4688d6522477ebe6c7d5f964c0c74f1dfa8d12a554bcbee4f4bc84ad5e4471
