[INFO] fetching crate polonius-the-crab 0.5.0... [INFO] checking polonius-the-crab-0.5.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate polonius-the-crab 0.5.0 into /workspace/builds/worker-1-tc2/source [INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml [INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml [INFO] started tweaking crates.io crate polonius-the-crab 0.5.0 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate polonius-the-crab 0.5.0 [INFO] tweaked toml for crates.io crate polonius-the-crab 0.5.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate polonius-the-crab 0.5.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate polonius-the-crab 0.5.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 47d0ccd9561af5150251894b07b1f3bf9da42231a6f83d4fccf41742b7130abc [INFO] running `Command { std: "docker" "start" "-a" "47d0ccd9561af5150251894b07b1f3bf9da42231a6f83d4fccf41742b7130abc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "47d0ccd9561af5150251894b07b1f3bf9da42231a6f83d4fccf41742b7130abc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "47d0ccd9561af5150251894b07b1f3bf9da42231a6f83d4fccf41742b7130abc", kill_on_drop: false }` [INFO] [stdout] 47d0ccd9561af5150251894b07b1f3bf9da42231a6f83d4fccf41742b7130abc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b468caeea7bfd463bda4bc06243c501a2db92ca9a97c6d78f3d8df94e917a76e [INFO] running `Command { std: "docker" "start" "-a" "b468caeea7bfd463bda4bc06243c501a2db92ca9a97c6d78f3d8df94e917a76e", kill_on_drop: false }` [INFO] [stderr] Compiling macro_rules_attribute-proc_macro v0.2.2 [INFO] [stderr] Checking never-say-never v6.6.666 [INFO] [stderr] Checking macro_rules_attribute v0.2.2 [INFO] [stderr] Checking higher-kinded-types v0.2.1 [INFO] [stderr] Checking polonius-the-crab v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result<&i32, Error> [INFO] [stdout] --> tests/try.rs:19:1 [INFO] [stdout] | [INFO] [stdout] 19 | / { [INFO] [stdout] 20 | | polonius!(|map| -> Result<&'polonius i32, Error> { [INFO] [stdout] 21 | | if let Some(value) = map.get(&22) { [INFO] [stdout] ... | [INFO] [stdout] 28 | | Ok(&map[&22]) [INFO] [stdout] 29 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&i32, Error> [INFO] [stdout] --> tests/try.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | polonius_try!(fallible_operation(value)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `polonius_try` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&i32, Error> [INFO] [stdout] --> tests/try.rs:24:30 [INFO] [stdout] | [INFO] [stdout] 24 | polonius_return!(Ok(value)); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&i32, Error> [INFO] [stdout] --> tests/try.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | / polonius!(|map| -> Result<&'polonius i32, Error> { [INFO] [stdout] 21 | | if let Some(value) = map.get(&22) { [INFO] [stdout] 22 | | // fallible_operation(value)?; [INFO] [stdout] 23 | | polonius_try!(fallible_operation(value)); [INFO] [stdout] ... | [INFO] [stdout] 26 | | }); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `polonius` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&i32, Error> [INFO] [stdout] --> tests/try.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | Ok(&map[&22]) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `polonius-the-crab` (test "try") due to 5 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> tests/lending_iterator.rs:83:9 [INFO] [stdout] | [INFO] [stdout] 73 | / fn new ( [INFO] [stdout] 74 | | slice: &'slice mut [T], [INFO] [stdout] 75 | | ) -> WindowsMut<&'slice mut [T], WIDTH> [INFO] [stdout] 76 | | where [INFO] [stdout] 77 | | WindowsMut<&'slice mut [T], WIDTH> [INFO] [stdout] 78 | | : for<'n> LendingIteratorItem<'n, T = &'n mut [T; WIDTH]> [INFO] [stdout] 79 | | , [INFO] [stdout] | |_________- move the `impl` block outside of this associated function `new` [INFO] [stdout] ... [INFO] [stdout] 83 | / impl<'next, 'slice, T, const WIDTH: usize> [INFO] [stdout] 84 | | LendingIteratorItem<'next> [INFO] [stdout] | | ------------------- `LendingIteratorItem` is not local [INFO] [stdout] 85 | | for [INFO] [stdout] 86 | | WindowsMut<&'slice mut [T], WIDTH> [INFO] [stdout] | |_____________----------__________________-----^ [INFO] [stdout] | | | [INFO] [stdout] | | `WIDTH` is not local [INFO] [stdout] | `WindowsMut` is not local [INFO] [stdout] | [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: `#[warn(non_local_definitions)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> tests/lending_iterator.rs:91:9 [INFO] [stdout] | [INFO] [stdout] 73 | / fn new ( [INFO] [stdout] 74 | | slice: &'slice mut [T], [INFO] [stdout] 75 | | ) -> WindowsMut<&'slice mut [T], WIDTH> [INFO] [stdout] 76 | | where [INFO] [stdout] 77 | | WindowsMut<&'slice mut [T], WIDTH> [INFO] [stdout] 78 | | : for<'n> LendingIteratorItem<'n, T = &'n mut [T; WIDTH]> [INFO] [stdout] 79 | | , [INFO] [stdout] | |_________- move the `impl` block outside of this associated function `new` [INFO] [stdout] ... [INFO] [stdout] 91 | / impl<'slice, T, const WIDTH: usize> [INFO] [stdout] 92 | | LendingIterator [INFO] [stdout] | | --------------- `LendingIterator` is not local [INFO] [stdout] 93 | | for [INFO] [stdout] 94 | | WindowsMut<&'slice mut [T], WIDTH> [INFO] [stdout] | |_____________----------__________________-----^ [INFO] [stdout] | | | [INFO] [stdout] | | `WIDTH` is not local [INFO] [stdout] | `WindowsMut` is not local [INFO] [stdout] | [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b468caeea7bfd463bda4bc06243c501a2db92ca9a97c6d78f3d8df94e917a76e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b468caeea7bfd463bda4bc06243c501a2db92ca9a97c6d78f3d8df94e917a76e", kill_on_drop: false }` [INFO] [stdout] b468caeea7bfd463bda4bc06243c501a2db92ca9a97c6d78f3d8df94e917a76e