[INFO] fetching crate std_nightly_to_stable_3db085279c83 0.1.1... [INFO] testing std_nightly_to_stable_3db085279c83-0.1.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8 [INFO] extracting crate std_nightly_to_stable_3db085279c83 0.1.1 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate std_nightly_to_stable_3db085279c83 0.1.1 [INFO] finished tweaking crates.io crate std_nightly_to_stable_3db085279c83 0.1.1 [INFO] tweaked toml for crates.io crate std_nightly_to_stable_3db085279c83 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate std_nightly_to_stable_3db085279c83 0.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 84c978414592021ac5d25f853b5cb88fcb8eba6f3de1989c78c53eeefbc109e9 [INFO] running `Command { std: "docker" "start" "-a" "84c978414592021ac5d25f853b5cb88fcb8eba6f3de1989c78c53eeefbc109e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "84c978414592021ac5d25f853b5cb88fcb8eba6f3de1989c78c53eeefbc109e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "84c978414592021ac5d25f853b5cb88fcb8eba6f3de1989c78c53eeefbc109e9", kill_on_drop: false }` [INFO] [stdout] 84c978414592021ac5d25f853b5cb88fcb8eba6f3de1989c78c53eeefbc109e9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 52f0e9dd4e25cfa4bd3132fc6420fac3f101dca5a9279d76c4d01b95377c8e6d [INFO] running `Command { std: "docker" "start" "-a" "52f0e9dd4e25cfa4bd3132fc6420fac3f101dca5a9279d76c4d01b95377c8e6d", kill_on_drop: false }` [INFO] [stderr] Compiling std_nightly_to_stable_3db085279c83 v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/lib.rs:556:9 [INFO] [stdout] | [INFO] [stdout] 556 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions [INFO] [stdout] = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/lib.rs:565:9 [INFO] [stdout] | [INFO] [stdout] 565 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s [INFO] running `Command { std: "docker" "inspect" "52f0e9dd4e25cfa4bd3132fc6420fac3f101dca5a9279d76c4d01b95377c8e6d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52f0e9dd4e25cfa4bd3132fc6420fac3f101dca5a9279d76c4d01b95377c8e6d", kill_on_drop: false }` [INFO] [stdout] 52f0e9dd4e25cfa4bd3132fc6420fac3f101dca5a9279d76c4d01b95377c8e6d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b8d259607bafa26df88c3ab7560a4d92d32c7513b235ef40eecd8104be670cb7 [INFO] running `Command { std: "docker" "start" "-a" "b8d259607bafa26df88c3ab7560a4d92d32c7513b235ef40eecd8104be670cb7", kill_on_drop: false }` [INFO] [stderr] Compiling std_nightly_to_stable_3db085279c83 v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/lib.rs:556:9 [INFO] [stdout] | [INFO] [stdout] 556 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions [INFO] [stdout] = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/lib.rs:565:9 [INFO] [stdout] | [INFO] [stdout] 565 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/lib.rs:556:9 [INFO] [stdout] | [INFO] [stdout] 556 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions [INFO] [stdout] = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/lib.rs:565:9 [INFO] [stdout] | [INFO] [stdout] 565 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.68s [INFO] running `Command { std: "docker" "inspect" "b8d259607bafa26df88c3ab7560a4d92d32c7513b235ef40eecd8104be670cb7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8d259607bafa26df88c3ab7560a4d92d32c7513b235ef40eecd8104be670cb7", kill_on_drop: false }` [INFO] [stdout] b8d259607bafa26df88c3ab7560a4d92d32c7513b235ef40eecd8104be670cb7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4c4d4c237dd1b781c75b81017e4d7aae512670c08eefbc7b81f79b4181e9fbd7 [INFO] running `Command { std: "docker" "start" "-a" "4c4d4c237dd1b781c75b81017e4d7aae512670c08eefbc7b81f79b4181e9fbd7", kill_on_drop: false }` [INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stderr] --> src/lib.rs:556:9 [INFO] [stderr] | [INFO] [stderr] 556 | #[must_use] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions [INFO] [stderr] = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stderr] --> src/lib.rs:565:9 [INFO] [stderr] | [INFO] [stderr] 565 | #[must_use] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions [INFO] [stderr] [INFO] [stderr] warning: `std_nightly_to_stable_3db085279c83` (lib) generated 2 warnings (run `cargo fix --lib -p std_nightly_to_stable_3db085279c83` to apply 2 suggestions) [INFO] [stderr] warning: `std_nightly_to_stable_3db085279c83` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/std_nightly_to_stable_3db085279c83-db73585026eb8e6c) [INFO] [stdout] [INFO] [stdout] running 18 tests [INFO] [stdout] test xcore::iter::test_is_sorted ... ok [INFO] [stdout] test xcore::test_array_windows_count ... ok [INFO] [stdout] test xcore::test_array_windows_nth ... ok [INFO] [stdout] test xcore::test_array_windows_nth_back ... ok [INFO] [stdout] test xcore::test_is_sorted ... ok [INFO] [stdout] test xcore::test_slice_partition_dedup_by ... ok [INFO] [stdout] test xcore::test_slice_partition_dedup_empty ... ok [INFO] [stdout] test xcore::test_slice_partition_dedup_multiple_ident ... ok [INFO] [stdout] test xcore::test_slice_partition_dedup_one ... ok [INFO] [stdout] test xcore::test_slice_partition_dedup_partialeq ... ok [INFO] [stdout] test xstd::io::io_slice_advance_slices ... ok [INFO] [stdout] test xstd::io::io_slice_mut_advance_slices ... ok [INFO] [stdout] test xstd::io::test_write_all_vectored ... ok [INFO] [stdout] test xcore::test_array_windows_infer ... ok [INFO] [stdout] test xstd::io::io_slice_advance_slices_beyond_total_length - should panic ... ok [INFO] [stdout] test xstd::io::io_slice_advance_slices_empty_slice - should panic ... ok [INFO] [stdout] test xstd::io::io_slice_mut_advance_slices_empty_slice - should panic ... ok [INFO] [stderr] Doc-tests std_nightly_to_stable_3db085279c83 [INFO] [stdout] test xstd::io::io_slice_mut_advance_slices_beyond_total_length - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 15 tests [INFO] [stdout] test src/lib.rs - xcore::SliceExt::is_sorted_by_key_pr118811 (line 388) ... ok [INFO] [stdout] test src/lib.rs - xcore::SliceExt::partition_dedup_pr54058 (line 453) ... ok [INFO] [stdout] test src/lib.rs - xstd::io::Write::write_all_vectored_pr116070 (line 1181) ... ok [INFO] [stdout] test src/lib.rs - xstd::io::IoSliceExt::advance_slices_pr116070 (line 992) ... ok [INFO] [stdout] test src/lib.rs - xcore::iter::Iterator::is_sorted_pr118811 (line 37) ... ok [INFO] [stdout] test src/lib.rs - xcore::iter::Iterator::is_sorted_by_key_pr118811 (line 131) ... ok [INFO] [stdout] test src/lib.rs - xcore::SliceExt::array_windows_pr75026 (line 422) ... ok [INFO] [stdout] test src/lib.rs - xcore::SliceExt::is_sorted_by_pr118811 (line 352) ... ok [INFO] [stdout] test src/lib.rs - xstd::io::IoSliceExt::advance_pr116070 (line 954) ... ok [INFO] [stdout] test src/lib.rs - xstd::io::IoSliceMutExt::advance_pr116070 (line 841) ... ok [INFO] [stdout] test src/lib.rs - xcore::SliceExt::partition_dedup_by_pr54058 (line 493) ... ok [INFO] [stdout] test src/lib.rs - xstd::io::IoSliceMutExt::advance_slices_pr116070 (line 879) ... ok [INFO] [stdout] test src/lib.rs - xcore::iter::Iterator::is_sorted_by_pr118811 (line 71) ... ok [INFO] [stdout] test src/lib.rs - xcore::SliceExt::partition_dedup_by_key_pr54058 (line 524) ... ok [INFO] [stdout] test src/lib.rs - xcore::SliceExt::is_sorted_pr118811 (line 318) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.74s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "4c4d4c237dd1b781c75b81017e4d7aae512670c08eefbc7b81f79b4181e9fbd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c4d4c237dd1b781c75b81017e4d7aae512670c08eefbc7b81f79b4181e9fbd7", kill_on_drop: false }` [INFO] [stdout] 4c4d4c237dd1b781c75b81017e4d7aae512670c08eefbc7b81f79b4181e9fbd7