[INFO] fetching crate mucell 0.3.5...
[INFO] testing mucell-0.3.5 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate mucell 0.3.5 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate mucell 0.3.5
[INFO] finished tweaking crates.io crate mucell 0.3.5
[INFO] tweaked toml for crates.io crate mucell 0.3.5 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mucell 0.3.5 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b77d73a7d6fd9c55d4d4ced8b7241d57764c15e44be0ff5b49f4399259701c28
[INFO] running `Command { std: "docker" "start" "-a" "b77d73a7d6fd9c55d4d4ced8b7241d57764c15e44be0ff5b49f4399259701c28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b77d73a7d6fd9c55d4d4ced8b7241d57764c15e44be0ff5b49f4399259701c28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b77d73a7d6fd9c55d4d4ced8b7241d57764c15e44be0ff5b49f4399259701c28", kill_on_drop: false }`
[INFO] [stdout] b77d73a7d6fd9c55d4d4ced8b7241d57764c15e44be0ff5b49f4399259701c28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 914afbca27e769d3b81bc3570c47ea1fe19e49a94ba8794987b937ccd56e1bca
[INFO] running `Command { std: "docker" "start" "-a" "914afbca27e769d3b81bc3570c47ea1fe19e49a94ba8794987b937ccd56e1bca", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling mucell v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |         unsafe { self.value.into_inner() }
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:68:20
[INFO] [stdout]     |
[INFO] [stdout]  68 | #![warn(bad_style, unused, missing_docs)]
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:173:19
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn borrow(&self) -> Ref<&T> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^
[INFO] [stdout]     |                   |         |   |
[INFO] [stdout]     |                   |         |   the same lifetime is elided here
[INFO] [stdout]     |                   |         the same lifetime is hidden here
[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] 173 |     pub fn borrow(&self) -> Ref<'_, &T> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "914afbca27e769d3b81bc3570c47ea1fe19e49a94ba8794987b937ccd56e1bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "914afbca27e769d3b81bc3570c47ea1fe19e49a94ba8794987b937ccd56e1bca", kill_on_drop: false }`
[INFO] [stdout] 914afbca27e769d3b81bc3570c47ea1fe19e49a94ba8794987b937ccd56e1bca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de67b8950f121095dd15ac1569cad1ffa8938a5ede42521d8a03511ad5d3a730
[INFO] running `Command { std: "docker" "start" "-a" "de67b8950f121095dd15ac1569cad1ffa8938a5ede42521d8a03511ad5d3a730", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |         unsafe { self.value.into_inner() }
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:68:20
[INFO] [stdout]     |
[INFO] [stdout]  68 | #![warn(bad_style, unused, missing_docs)]
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:173:19
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn borrow(&self) -> Ref<&T> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^
[INFO] [stdout]     |                   |         |   |
[INFO] [stdout]     |                   |         |   the same lifetime is elided here
[INFO] [stdout]     |                   |         the same lifetime is hidden here
[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] 173 |     pub fn borrow(&self) -> Ref<'_, &T> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mucell v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/vector_munger.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use] extern crate mucell;
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/vector_munger.rs:38:19
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn munged(&self) -> Cow<[i32]> {
[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] 38 |     pub fn munged(&self) -> Cow<'_, [i32]> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |         unsafe { self.value.into_inner() }
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:68:20
[INFO] [stdout]     |
[INFO] [stdout]  68 | #![warn(bad_style, unused, missing_docs)]
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:173:19
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn borrow(&self) -> Ref<&T> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^
[INFO] [stdout]     |                   |         |   |
[INFO] [stdout]     |                   |         |   the same lifetime is elided here
[INFO] [stdout]     |                   |         the same lifetime is hidden here
[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] 173 |     pub fn borrow(&self) -> Ref<'_, &T> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "de67b8950f121095dd15ac1569cad1ffa8938a5ede42521d8a03511ad5d3a730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de67b8950f121095dd15ac1569cad1ffa8938a5ede42521d8a03511ad5d3a730", kill_on_drop: false }`
[INFO] [stdout] de67b8950f121095dd15ac1569cad1ffa8938a5ede42521d8a03511ad5d3a730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 93bca4baf125fb11a2982319bac0fbed64946c4b437b7d3adc7dbb25760e5109
[INFO] running `Command { std: "docker" "start" "-a" "93bca4baf125fb11a2982319bac0fbed64946c4b437b7d3adc7dbb25760e5109", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/lib.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         unsafe { self.value.into_inner() }
[INFO] [stderr]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:68:20
[INFO] [stderr]     |
[INFO] [stderr]  68 | #![warn(bad_style, unused, missing_docs)]
[INFO] [stderr]     |                    ^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:173:19
[INFO] [stderr]     |
[INFO] [stderr] 173 |     pub fn borrow(&self) -> Ref<&T> {
[INFO] [stderr]     |                   ^^^^^     ^^^^^^^
[INFO] [stderr]     |                   |         |   |
[INFO] [stderr]     |                   |         |   the same lifetime is elided here
[INFO] [stderr]     |                   |         the same lifetime is hidden here
[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] 173 |     pub fn borrow(&self) -> Ref<'_, &T> {
[INFO] [stderr]     |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: `mucell` (lib) generated 2 warnings (run `cargo fix --lib -p mucell` to apply 1 suggestion)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/vector_munger.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use] extern crate mucell;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> examples/vector_munger.rs:38:19
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn munged(&self) -> Cow<[i32]> {
[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] 38 |     pub fn munged(&self) -> Cow<'_, [i32]> {
[INFO] [stderr]    |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: `mucell` (example "vector_munger") generated 2 warnings (run `cargo fix --example "vector_munger" -p mucell` to apply 1 suggestion)
[INFO] [stderr] warning: `mucell` (lib test) generated 2 warnings (2 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/mucell-8981d49c6e8fd642)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_try_mutate_in_try_mutate ... ok
[INFO] [stdout] test test_borrow_in_try_mutate - should panic ... ok
[INFO] [stdout] test unsafe_subversion_demo ... ok
[INFO] [stderr]    Doc-tests mucell
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - Ref<'b,T>::into_inner (line 311) ... ok
[INFO] [stdout] test src/lib.rs - MuCell<T>::new (line 116) ... ok
[INFO] [stdout] test src/lib.rs - Ref<'b,T>::map_unsafe (line 375) ... ok
[INFO] [stdout] test src/lib.rs - Ref<'b,T>::filter_map_unsafe (line 428) ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/lib.rs - MuCell<T>::into_inner (line 136) ... ok
[INFO] [stdout] test src/lib.rs - Ref<'b,Cow<'b,T>>::into_owned (line 338) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.74s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "93bca4baf125fb11a2982319bac0fbed64946c4b437b7d3adc7dbb25760e5109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93bca4baf125fb11a2982319bac0fbed64946c4b437b7d3adc7dbb25760e5109", kill_on_drop: false }`
[INFO] [stdout] 93bca4baf125fb11a2982319bac0fbed64946c4b437b7d3adc7dbb25760e5109
