[INFO] fetching crate halfling 0.8.0...
[INFO] testing halfling-0.8.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate halfling 0.8.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate halfling 0.8.0
[INFO] finished tweaking crates.io crate halfling 0.8.0
[INFO] tweaked toml for crates.io crate halfling 0.8.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate halfling 0.8.0 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 halfling 0.8.0 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] dd4242be205c98fbd0c5b5299c08915a441f18de7db6cf05c5efef0ff79dc62c
[INFO] running `Command { std: "docker" "start" "-a" "dd4242be205c98fbd0c5b5299c08915a441f18de7db6cf05c5efef0ff79dc62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd4242be205c98fbd0c5b5299c08915a441f18de7db6cf05c5efef0ff79dc62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd4242be205c98fbd0c5b5299c08915a441f18de7db6cf05c5efef0ff79dc62c", kill_on_drop: false }`
[INFO] [stdout] dd4242be205c98fbd0c5b5299c08915a441f18de7db6cf05c5efef0ff79dc62c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] eafe09e0d4a6f14296ad39e2efb8df3074718e7b5f542661647243807ae3cd43
[INFO] running `Command { std: "docker" "start" "-a" "eafe09e0d4a6f14296ad39e2efb8df3074718e7b5f542661647243807ae3cd43", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.39
[INFO] [stderr]    Compiling syn v2.0.99
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling halfling v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/internal.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |         unsafe { core::mem::transmute(int) }
[INFO] [stdout]    |                  --------------------^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `u8::cast_signed`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.62s
[INFO] running `Command { std: "docker" "inspect" "eafe09e0d4a6f14296ad39e2efb8df3074718e7b5f542661647243807ae3cd43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eafe09e0d4a6f14296ad39e2efb8df3074718e7b5f542661647243807ae3cd43", kill_on_drop: false }`
[INFO] [stdout] eafe09e0d4a6f14296ad39e2efb8df3074718e7b5f542661647243807ae3cd43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4229c5a231ff2ef1ba0ee352690dc97d26323a128f1fd9b2c92bbe6ecf5cb95e
[INFO] running `Command { std: "docker" "start" "-a" "4229c5a231ff2ef1ba0ee352690dc97d26323a128f1fd9b2c92bbe6ecf5cb95e", kill_on_drop: false }`
[INFO] [stderr]    Compiling halfling v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/internal.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |         unsafe { core::mem::transmute(int) }
[INFO] [stdout]    |                  --------------------^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `u8::cast_signed`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/internal.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |         unsafe { core::mem::transmute(int) }
[INFO] [stdout]    |                  --------------------^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: replace this with: `u8::cast_signed`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "4229c5a231ff2ef1ba0ee352690dc97d26323a128f1fd9b2c92bbe6ecf5cb95e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4229c5a231ff2ef1ba0ee352690dc97d26323a128f1fd9b2c92bbe6ecf5cb95e", kill_on_drop: false }`
[INFO] [stdout] 4229c5a231ff2ef1ba0ee352690dc97d26323a128f1fd9b2c92bbe6ecf5cb95e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ab781e038f379cf4d829e7e356c5ab123319d1a7cc199898ae9deeb6be79d82a
[INFO] running `Command { std: "docker" "start" "-a" "ab781e038f379cf4d829e7e356c5ab123319d1a7cc199898ae9deeb6be79d82a", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary transmute
[INFO] [stderr]   --> src/internal.rs:74:18
[INFO] [stderr]    |
[INFO] [stderr] 74 |         unsafe { core::mem::transmute(int) }
[INFO] [stderr]    |                  --------------------^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: replace this with: `u8::cast_signed`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `halfling` (lib) generated 1 warning (run `cargo fix --lib -p halfling` to apply 1 suggestion)
[INFO] [stderr] warning: `halfling` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/halfling-028967063c242e67)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test internal::tests::unsigned_nibble_value_to_signed_value_is_correct ... ok
[INFO] [stdout] test tests::correct_nibbles_iteration_order ... ok
[INFO] [stdout] test tests::nibble_into_u8_is_correct ... ok
[INFO] [stdout] test tests::nibble_try_from_u8_is_correct ... ok
[INFO] [stdout] test tests::nibble_can_represent_u8_check_is_correct ... ok
[INFO] [stdout] test tests::nibbles_constructor_apis_behave_correctly ... ok
[INFO] [stdout] test tests::representable_nibble_values_transmute_correctly ... ok
[INFO] [stdout] test tests::shr_produces_correct_values ... ok
[INFO] [stdout] test tests::size_of_option_nibble_equals_size_of_nibble ... ok
[INFO] [stdout] test tests::unsafe_nibble_new_unchecked_is_valid_given_invariants ... ok
[INFO] [stdout] test tests::shl_produces_correct_values ... ok
[INFO] [stdout] test tests::bitwise_not_produces_valid_nibbles ... ok
[INFO] [stdout] test internal::tests::unsigned_nibble_value_is_byte_width ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests halfling
[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" "ab781e038f379cf4d829e7e356c5ab123319d1a7cc199898ae9deeb6be79d82a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab781e038f379cf4d829e7e356c5ab123319d1a7cc199898ae9deeb6be79d82a", kill_on_drop: false }`
[INFO] [stdout] ab781e038f379cf4d829e7e356c5ab123319d1a7cc199898ae9deeb6be79d82a
