[INFO] fetching crate token 1.0.0-rc1...
[INFO] testing token-1.0.0-rc1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate token 1.0.0-rc1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate token 1.0.0-rc1
[INFO] finished tweaking crates.io crate token 1.0.0-rc1
[INFO] tweaked toml for crates.io crate token 1.0.0-rc1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate token 1.0.0-rc1 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] 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] 46d4e8960a6a867be2024008964a5238abd7314fe5cdc8049a04cbd3e550f0a0
[INFO] running `Command { std: "docker" "start" "-a" "46d4e8960a6a867be2024008964a5238abd7314fe5cdc8049a04cbd3e550f0a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46d4e8960a6a867be2024008964a5238abd7314fe5cdc8049a04cbd3e550f0a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46d4e8960a6a867be2024008964a5238abd7314fe5cdc8049a04cbd3e550f0a0", kill_on_drop: false }`
[INFO] [stdout] 46d4e8960a6a867be2024008964a5238abd7314fe5cdc8049a04cbd3e550f0a0
[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] 970b1e54b0ce093e528bdeb07d6f793a3311bd61bd64ac878a2201e77c24ca89
[INFO] running `Command { std: "docker" "start" "-a" "970b1e54b0ce093e528bdeb07d6f793a3311bd61bd64ac878a2201e77c24ca89", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling token v1.0.0-rc1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::io::ReadExt`
[INFO] [stdout]   --> src/lib.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 | use std::io::{Read, ReadExt};
[INFO] [stdout]    |                     ^^^^^^^ no `ReadExt` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Chars` in module `io`
[INFO] [stdout]   --> src/lib.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |     chars: io::Chars<R>,
[INFO] [stdout]    |                ^^^^^ not found in `io`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 47 + use std::str::Chars;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Chars`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 57 -     chars: io::Chars<R>,
[INFO] [stdout] 57 +     chars: Chars<R>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]   --> src/lib.rs:83:37
[INFO] [stdout]    |
[INFO] [stdout] 83 |     type Item = Result<&'a str, io::CharsError>;
[INFO] [stdout]    |                                     ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]   --> src/lib.rs:87:51
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn next(&mut self) -> Option<Result<&str, io::CharsError>> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]    --> src/lib.rs:175:37
[INFO] [stdout]     |
[INFO] [stdout] 175 |     type Item = Result<&'b str, io::CharsError>;
[INFO] [stdout]     |                                     ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]    --> src/lib.rs:178:51
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn next(&mut self) -> Option<Result<&str, io::CharsError>> {
[INFO] [stdout]     |                                                   ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | #![feature(core)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:46:1
[INFO] [stdout]    |
[INFO] [stdout] 46 | #![feature(io)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 | #![feature(core)]
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `io`
[INFO] [stdout]   --> src/lib.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | #![feature(io)]
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0207]: the lifetime parameter `'a` is not constrained by the impl trait, self type, or predicates
[INFO] [stdout]   --> src/lib.rs:82:6
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl<'a, R: Read> Iterator for Tokenizer<R> {
[INFO] [stdout]    |      ^^ unconstrained lifetime parameter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0207]: the lifetime parameter `'b` is not constrained by the impl trait, self type, or predicates
[INFO] [stdout]    --> src/lib.rs:174:11
[INFO] [stdout]     |
[INFO] [stdout] 174 | impl <'a, 'b, R: Read> Iterator for SentenceSplitter<'a, R> {
[INFO] [stdout]     |           ^^ unconstrained lifetime parameter
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `chars` found for type parameter `R` in the current scope
[INFO] [stdout]   --> src/lib.rs:75:27
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl <R> Tokenizer<R> where R: Read {
[INFO] [stdout]    |       - method `chars` not found for this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 75 |             chars: reader.chars(),
[INFO] [stdout]    |                           ^^^^^ method not found in `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/lib.rs:99:69
[INFO] [stdout]    |
[INFO] [stdout] 99 | ...                   return Some(Ok(self.current.as_slice()));
[INFO] [stdout]    |                                                   ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> src/lib.rs:116:34
[INFO] [stdout]     |
[INFO] [stdout] 116 |             Some(Ok(self.current.as_slice()))
[INFO] [stdout]     |                                  ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 | /         SentenceSplitter{
[INFO] [stdout] 166 | |             tokenizer: source,
[INFO] [stdout] 167 | |             current: String::new(),
[INFO] [stdout] 168 | |             terminators: terminators,
[INFO] [stdout] 169 | |             quote_types: quote_types
[INFO] [stdout] 170 | |         }
[INFO] [stdout]     | |_________^ cannot infer type of the type parameter `R` declared on the struct `SentenceSplitter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: std::io::Read`
[INFO] [stdout] note: required by a bound in `SentenceSplitter`
[INFO] [stdout]    --> src/lib.rs:129:36
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub struct SentenceSplitter<'a, R: Read> {
[INFO] [stdout]     |                                    ^^^^ required by this bound in `SentenceSplitter`
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 165 |         SentenceSplitter::<R>{
[INFO] [stdout]     |                         +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> src/lib.rs:191:65
[INFO] [stdout]     |
[INFO] [stdout] 191 | ...                   return Some(Ok(self.current.as_slice()))
[INFO] [stdout]     |                                                   ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> src/lib.rs:201:73
[INFO] [stdout]     |
[INFO] [stdout] 201 | ...                   return Some(Ok(self.current.as_slice()));
[INFO] [stdout]     |                                                   ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> src/lib.rs:217:69
[INFO] [stdout]     |
[INFO] [stdout] 217 | ...                   return Some(Ok(self.current.as_slice()));
[INFO] [stdout]     |                                                   ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]    --> src/lib.rs:230:53
[INFO] [stdout]     |
[INFO] [stdout] 230 |                         return Some(Ok(self.current.as_slice()));
[INFO] [stdout]     |                                                     ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0207, E0283, E0412, E0432, E0554, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0207`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `token` (lib) due to 19 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "970b1e54b0ce093e528bdeb07d6f793a3311bd61bd64ac878a2201e77c24ca89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "970b1e54b0ce093e528bdeb07d6f793a3311bd61bd64ac878a2201e77c24ca89", kill_on_drop: false }`
[INFO] [stdout] 970b1e54b0ce093e528bdeb07d6f793a3311bd61bd64ac878a2201e77c24ca89
