[INFO] fetching crate unsafe_unwrap 0.1.0... [INFO] testing unsafe_unwrap-0.1.0 against 1.90.0 for beta-1.91-3 [INFO] extracting crate unsafe_unwrap 0.1.0 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate unsafe_unwrap 0.1.0 [INFO] finished tweaking crates.io crate unsafe_unwrap 0.1.0 [INFO] tweaked toml for crates.io crate unsafe_unwrap 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate unsafe_unwrap 0.1.0 on toolchain 1.90.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 42b930d4480ecbc5039d089cbed8be04d1d14ea9c7c62426ff84da8790afb1dd [INFO] running `Command { std: "docker" "start" "-a" "42b930d4480ecbc5039d089cbed8be04d1d14ea9c7c62426ff84da8790afb1dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "42b930d4480ecbc5039d089cbed8be04d1d14ea9c7c62426ff84da8790afb1dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42b930d4480ecbc5039d089cbed8be04d1d14ea9c7c62426ff84da8790afb1dd", kill_on_drop: false }` [INFO] [stdout] 42b930d4480ecbc5039d089cbed8be04d1d14ea9c7c62426ff84da8790afb1dd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c4a7d863e21ee8e431d468929abd6d7ea291a2ea483b3c5673eda05b94567704 [INFO] running `Command { std: "docker" "start" "-a" "c4a7d863e21ee8e431d468929abd6d7ea291a2ea483b3c5673eda05b94567704", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling unsafe_unwrap v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/lib.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | match transmute::<_, Impossible>(ZeroSized) {} [INFO] [stdout] | ^^^^^^-------------------------------------^^^ [INFO] [stdout] | | | [INFO] [stdout] | | any code following this expression is unreachable [INFO] [stdout] | unreachable expression [INFO] [stdout] | [INFO] [stdout] note: this expression has type `Impossible`, which is uninhabited [INFO] [stdout] --> src/lib.rs:47:15 [INFO] [stdout] | [INFO] [stdout] 47 | match transmute::<_, Impossible>(ZeroSized) {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] running `Command { std: "docker" "inspect" "c4a7d863e21ee8e431d468929abd6d7ea291a2ea483b3c5673eda05b94567704", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4a7d863e21ee8e431d468929abd6d7ea291a2ea483b3c5673eda05b94567704", kill_on_drop: false }` [INFO] [stdout] c4a7d863e21ee8e431d468929abd6d7ea291a2ea483b3c5673eda05b94567704 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9f4a4afe4c06038d1eacf27172c46ec16c8c1845dcd8e15a4235bf57a4878f07 [INFO] running `Command { std: "docker" "start" "-a" "9f4a4afe4c06038d1eacf27172c46ec16c8c1845dcd8e15a4235bf57a4878f07", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling unsafe_unwrap v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/lib.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | match transmute::<_, Impossible>(ZeroSized) {} [INFO] [stdout] | ^^^^^^-------------------------------------^^^ [INFO] [stdout] | | | [INFO] [stdout] | | any code following this expression is unreachable [INFO] [stdout] | unreachable expression [INFO] [stdout] | [INFO] [stdout] note: this expression has type `Impossible`, which is uninhabited [INFO] [stdout] --> src/lib.rs:47:15 [INFO] [stdout] | [INFO] [stdout] 47 | match transmute::<_, Impossible>(ZeroSized) {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:23:19 [INFO] [stdout] | [INFO] [stdout] 23 | #![cfg_attr(test, feature(test))] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/lib.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | match transmute::<_, Impossible>(ZeroSized) {} [INFO] [stdout] | ^^^^^^-------------------------------------^^^ [INFO] [stdout] | | | [INFO] [stdout] | | any code following this expression is unreachable [INFO] [stdout] | unreachable expression [INFO] [stdout] | [INFO] [stdout] note: this expression has type `Impossible`, which is uninhabited [INFO] [stdout] --> src/lib.rs:47:15 [INFO] [stdout] | [INFO] [stdout] 47 | match transmute::<_, Impossible>(ZeroSized) {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `unsafe_unwrap` (lib test) due to 1 previous error; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "9f4a4afe4c06038d1eacf27172c46ec16c8c1845dcd8e15a4235bf57a4878f07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f4a4afe4c06038d1eacf27172c46ec16c8c1845dcd8e15a4235bf57a4878f07", kill_on_drop: false }` [INFO] [stdout] 9f4a4afe4c06038d1eacf27172c46ec16c8c1845dcd8e15a4235bf57a4878f07