[INFO] fetching crate pattern-3 0.5.0...
[INFO] testing pattern-3-0.5.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate pattern-3 0.5.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate pattern-3 0.5.0
[INFO] finished tweaking crates.io crate pattern-3 0.5.0
[INFO] tweaked toml for crates.io crate pattern-3 0.5.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pattern-3 0.5.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55d698f06db30837f2061bed2bfda98b8db33bcae268be8658c82c972f656739
[INFO] running `Command { std: "docker" "start" "-a" "55d698f06db30837f2061bed2bfda98b8db33bcae268be8658c82c972f656739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55d698f06db30837f2061bed2bfda98b8db33bcae268be8658c82c972f656739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55d698f06db30837f2061bed2bfda98b8db33bcae268be8658c82c972f656739", kill_on_drop: false }`
[INFO] [stdout] 55d698f06db30837f2061bed2bfda98b8db33bcae268be8658c82c972f656739
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b16e7f38d45a74dfe9c8c9a4b62f807e47af52e8b1cf4509cfb58bb992649164
[INFO] running `Command { std: "docker" "start" "-a" "b16e7f38d45a74dfe9c8c9a4b62f807e47af52e8b1cf4509cfb58bb992649164", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling pattern-3 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout]  1 | / #![feature(
[INFO] [stdout]  2 | |     specialization,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     specialization,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/omgwtf8/wtf8.rs:193:21
[INFO] [stdout]     |
[INFO] [stdout] 193 |             0xf00000...0xffffffff => {
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/omgwtf8/wtf8.rs:196:21
[INFO] [stdout]     |
[INFO] [stdout] 196 |             0x800000...0xbfffff => self.0 & 0x3f | self.0 >> 2 & 0x3c0 | 0xdc00,
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/omgwtf8/wtf8.rs:323:31
[INFO] [stdout]     |
[INFO] [stdout] 323 |             ascii_byte @ 0x00 ... 0x7F => ascii_byte,
[INFO] [stdout]     |                               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `int_to_from_bytes` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     int_to_from_bytes,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iterator_find_map` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     iterator_find_map,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `ptr_offset_from` has been stable since 1.47.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     ptr_offset_from,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/omgwtf8/wtf8.rs:365:17
[INFO] [stdout]     |
[INFO] [stdout] 365 |                 _ => unreachable!(),
[INFO] [stdout]     |                 ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/omgwtf8/wtf8.rs:365:17
[INFO] [stdout]     |
[INFO] [stdout] 360 |                 0..=0x7f => 1,
[INFO] [stdout]     |                 -------- matches some of the same values
[INFO] [stdout] 361 |                 0x80..=0xbf => break,
[INFO] [stdout]     |                 ----------- matches some of the same values
[INFO] [stdout] 362 |                 0xc0..=0xdf => 2,
[INFO] [stdout]     |                 ----------- matches some of the same values
[INFO] [stdout] 363 |                 b @ 0xe0..=0xef => if b == 0xed && self.bytes[pos + 1] >= 0xa0 { break } else { 3 },
[INFO] [stdout]     |                     ----------- matches some of the same values
[INFO] [stdout] 364 |                 0xf0..=0xff => if self.len() == pos + 3 { break } else { 4 },
[INFO] [stdout] 365 |                 _ => unreachable!(),
[INFO] [stdout]     |                 ^ ...and 1 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/omgwtf8/wtf8.rs:634:17
[INFO] [stdout]     |
[INFO] [stdout] 634 |                 _ => unreachable!(),
[INFO] [stdout]     |                 ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/omgwtf8/wtf8.rs:634:17
[INFO] [stdout]     |
[INFO] [stdout] 616 |                 0x00..=0x7f => {
[INFO] [stdout]     |                 ----------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 620 |                 0x80..=0xbf | 0xe0..=0xff => {
[INFO] [stdout]     |                 ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 629 |                 0xc0..=0xdf => {
[INFO] [stdout]     |                 ----------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 634 |                 _ => unreachable!(),
[INFO] [stdout]     |                 ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/omgwtf8/mod.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             _ => unreachable!(),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/omgwtf8/mod.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |             0x00..=0x7f => 1,
[INFO] [stdout]    |             ----------- matches some of the same values
[INFO] [stdout] 34 |             0x80..=0xbf => if index == 0 { 3 } else { 2 },
[INFO] [stdout]    |             ----------- matches some of the same values
[INFO] [stdout] 35 |             0xc0..=0xdf => 2,
[INFO] [stdout]    |             ----------- matches some of the same values
[INFO] [stdout] 36 |             0xe0..=0xef => 3,
[INFO] [stdout]    |             ----------- matches some of the same values
[INFO] [stdout] 37 |             0xf0..=0xff => if index + 3 == self.len() { 3 } else { 2 },
[INFO] [stdout] 38 |             _ => unreachable!(),
[INFO] [stdout]    |             ^ ...and 1 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pattern-3` (lib) due to 1 previous error; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b16e7f38d45a74dfe9c8c9a4b62f807e47af52e8b1cf4509cfb58bb992649164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b16e7f38d45a74dfe9c8c9a4b62f807e47af52e8b1cf4509cfb58bb992649164", kill_on_drop: false }`
[INFO] [stdout] b16e7f38d45a74dfe9c8c9a4b62f807e47af52e8b1cf4509cfb58bb992649164
