[INFO] fetching crate reference-counted-singleton 0.1.5...
[INFO] testing reference-counted-singleton-0.1.5 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate reference-counted-singleton 0.1.5 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate reference-counted-singleton 0.1.5
[INFO] finished tweaking crates.io crate reference-counted-singleton 0.1.5
[INFO] tweaked toml for crates.io crate reference-counted-singleton 0.1.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate reference-counted-singleton 0.1.5 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 25 packages to highest compatible versions
[INFO] [stderr]       Adding serial_test v3.5.0 (available: v4.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_matches v1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611
[INFO] running `Command { std: "docker" "start" "f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling reference-counted-singleton v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling smallvec v1.16.2
[INFO] [stderr]    Compiling futures-core v0.3.34
[INFO] [stderr]    Compiling assert_matches v1.5.0
[INFO] [stderr]    Compiling futures-util v0.3.34
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling futures-executor v0.3.34
[INFO] [stderr]    Compiling serial_test_derive v3.5.0
[INFO] [stderr]    Compiling serial_test v3.5.0
[INFO] [stderr]    Compiling reference-counted-singleton v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]   --> src/tests.rs:62:14
[INFO] [stdout]    |
[INFO] [stdout] 62 |     unsafe { T1_S.as_ptr().as_ref().unwrap() }
[INFO] [stdout]    |              ^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: this type already provides "interior mutability", so its binding doesn't need to be declared as mutable when borrowed with a shared reference
[INFO] [stdout]    |
[INFO] [stdout] 55 - static mut T1_S: MaybeUninit<super::RefCountedSingleton<T1<'static>>> = MaybeUninit::uninit();
[INFO] [stdout] 55 + static T1_S: MaybeUninit<super::RefCountedSingleton<T1<'static>>> = MaybeUninit::uninit();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.77s
[INFO] running `Command { std: "docker" "inspect" "f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: creating a shared reference to mutable static
[INFO] [stderr]   --> src/tests.rs:62:14
[INFO] [stderr]    |
[INFO] [stderr] 62 |     unsafe { T1_S.as_ptr().as_ref().unwrap() }
[INFO] [stderr]    |              ^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stderr]    |
[INFO] [stderr]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stderr] help: this type already provides "interior mutability", so its binding doesn't need to be declared as mutable when borrowed with a shared reference
[INFO] [stderr]    |
[INFO] [stderr] 55 - static mut T1_S: MaybeUninit<super::RefCountedSingleton<T1<'static>>> = MaybeUninit::uninit();
[INFO] [stderr] 55 + static T1_S: MaybeUninit<super::RefCountedSingleton<T1<'static>>> = MaybeUninit::uninit();
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `reference-counted-singleton` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/reference_counted_singleton-9457e0fcb94552cc)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::ref_counted_singleton_error ... ok
[INFO] [stdout] test tests::ref_counted_singleton_static ... ok
[INFO] [stderr]    Doc-tests reference_counted_singleton
[INFO] [stdout] test tests::ref_counted_singleton_new ... ok
[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 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" "f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611", kill_on_drop: false }`
[INFO] [stdout] f606e90e9ad81e982770fc52db50f9becafe2190403a3efc9bc0bdb307658611
