[INFO] fetching crate halfling 0.8.0... [INFO] testing halfling-0.8.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1 [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 b83b707f97d809763b7861afa7638871f3339a33 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4df8e076c1367c820fd85a994304bb1963a48311a688f39a30907fbe18e2df63 [INFO] running `Command { std: "docker" "start" "-a" "4df8e076c1367c820fd85a994304bb1963a48311a688f39a30907fbe18e2df63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4df8e076c1367c820fd85a994304bb1963a48311a688f39a30907fbe18e2df63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4df8e076c1367c820fd85a994304bb1963a48311a688f39a30907fbe18e2df63", kill_on_drop: false }` [INFO] [stdout] 4df8e076c1367c820fd85a994304bb1963a48311a688f39a30907fbe18e2df63 [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 257615b9ea9733862ddf9a7c6d6c9a4a9cd83782fa4e3c9457d27857d579ac48 [INFO] running `Command { std: "docker" "start" "-a" "257615b9ea9733862ddf9a7c6d6c9a4a9cd83782fa4e3c9457d27857d579ac48", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.94 [INFO] [stderr] Compiling thiserror v2.0.12 [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 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 5.67s [INFO] running `Command { std: "docker" "inspect" "257615b9ea9733862ddf9a7c6d6c9a4a9cd83782fa4e3c9457d27857d579ac48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "257615b9ea9733862ddf9a7c6d6c9a4a9cd83782fa4e3c9457d27857d579ac48", kill_on_drop: false }` [INFO] [stdout] 257615b9ea9733862ddf9a7c6d6c9a4a9cd83782fa4e3c9457d27857d579ac48 [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0fc12f53feb60f6502fdbe46df1010c6675b57a80df2107b1a23560fdbd1fd1d [INFO] running `Command { std: "docker" "start" "-a" "0fc12f53feb60f6502fdbe46df1010c6675b57a80df2107b1a23560fdbd1fd1d", 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 0.55s [INFO] running `Command { std: "docker" "inspect" "0fc12f53feb60f6502fdbe46df1010c6675b57a80df2107b1a23560fdbd1fd1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0fc12f53feb60f6502fdbe46df1010c6675b57a80df2107b1a23560fdbd1fd1d", kill_on_drop: false }` [INFO] [stdout] 0fc12f53feb60f6502fdbe46df1010c6675b57a80df2107b1a23560fdbd1fd1d [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] be93001385cc0c4ad2840815d6ce91ade03a8b604e0371ef7862f9d59d78f09c [INFO] running `Command { std: "docker" "start" "-a" "be93001385cc0c4ad2840815d6ce91ade03a8b604e0371ef7862f9d59d78f09c", 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 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/halfling-028967063c242e67) [INFO] [stdout] [INFO] [stdout] running 13 tests [INFO] [stdout] test tests::correct_nibbles_iteration_order ... ok [INFO] [stdout] test tests::nibble_can_represent_u8_check_is_correct ... ok [INFO] [stdout] test internal::tests::unsigned_nibble_value_is_byte_width ... 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::shl_produces_correct_values ... ok [INFO] [stdout] test tests::shr_produces_correct_values ... ok [INFO] [stdout] test tests::unsafe_nibble_new_unchecked_is_valid_given_invariants ... ok [INFO] [stdout] test internal::tests::unsigned_nibble_value_to_signed_value_is_correct ... 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::size_of_option_nibble_equals_size_of_nibble ... ok [INFO] [stderr] Doc-tests halfling [INFO] [stdout] test tests::bitwise_not_produces_valid_nibbles ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s [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" "be93001385cc0c4ad2840815d6ce91ade03a8b604e0371ef7862f9d59d78f09c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be93001385cc0c4ad2840815d6ce91ade03a8b604e0371ef7862f9d59d78f09c", kill_on_drop: false }` [INFO] [stdout] be93001385cc0c4ad2840815d6ce91ade03a8b604e0371ef7862f9d59d78f09c