[INFO] crate token 1.0.0-rc1 is already in cache
[INFO] checking token-1.0.0-rc1 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate token 1.0.0-rc1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate token 1.0.0-rc1 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1c49f5d82cef68a032cb334b69d71fae886d383926faffb9df1404ce7ed80a5a
[INFO] running `"docker" "start" "-a" "1c49f5d82cef68a032cb334b69d71fae886d383926faffb9df1404ce7ed80a5a"`
[INFO] [stderr]     Checking token v1.0.0-rc1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `std::io::ReadExt`
[INFO] [stderr]   --> src/lib.rs:50:21
[INFO] [stderr]    |
[INFO] [stderr] 50 | use std::io::{Read, ReadExt};
[INFO] [stderr]    |                     ^^^^^^^ no `ReadExt` in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Chars` in module `io`
[INFO] [stderr]   --> src/lib.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 |     chars: io::Chars<R>,
[INFO] [stderr]    |                ^^^^^ not found in `io`
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 47 | use std::str::Chars;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stderr]   --> src/lib.rs:83:37
[INFO] [stderr]    |
[INFO] [stderr] 83 |     type Item = Result<&'a str, io::CharsError>;
[INFO] [stderr]    |                                     ^^^^^^^^^^ not found in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stderr]   --> src/lib.rs:87:51
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn next(&mut self) -> Option<Result<&str, io::CharsError>> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^ not found in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stderr]    --> src/lib.rs:175:37
[INFO] [stderr]     |
[INFO] [stderr] 175 |     type Item = Result<&'b str, io::CharsError>;
[INFO] [stderr]     |                                     ^^^^^^^^^^ not found in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stderr]    --> src/lib.rs:178:51
[INFO] [stderr]     |
[INFO] [stderr] 178 |     fn next(&mut self) -> Option<Result<&str, io::CharsError>> {
[INFO] [stderr]     |                                                   ^^^^^^^^^^ not found in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0207]: the lifetime parameter `'a` is not constrained by the impl trait, self type, or predicates
[INFO] [stderr]   --> src/lib.rs:82:6
[INFO] [stderr]    |
[INFO] [stderr] 82 | impl<'a, R: Read> Iterator for Tokenizer<R> {
[INFO] [stderr]    |      ^^ unconstrained lifetime parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0207]: the lifetime parameter `'b` is not constrained by the impl trait, self type, or predicates
[INFO] [stderr]    --> src/lib.rs:174:11
[INFO] [stderr]     |
[INFO] [stderr] 174 | impl <'a, 'b, R: Read> Iterator for SentenceSplitter<'a, R> {
[INFO] [stderr]     |           ^^ unconstrained lifetime parameter
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0207, E0412, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0207`.
[INFO] [stderr] error: could not compile `token`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved import `std::io::ReadExt`
[INFO] [stderr]   --> src/lib.rs:50:21
[INFO] [stderr]    |
[INFO] [stderr] 50 | use std::io::{Read, ReadExt};
[INFO] [stderr]    |                     ^^^^^^^ no `ReadExt` in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Chars` in module `io`
[INFO] [stderr]   --> src/lib.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 |     chars: io::Chars<R>,
[INFO] [stderr]    |                ^^^^^ not found in `io`
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 47 | use std::str::Chars;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stderr]   --> src/lib.rs:83:37
[INFO] [stderr]    |
[INFO] [stderr] 83 |     type Item = Result<&'a str, io::CharsError>;
[INFO] [stderr]    |                                     ^^^^^^^^^^ not found in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stderr]   --> src/lib.rs:87:51
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn next(&mut self) -> Option<Result<&str, io::CharsError>> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^ not found in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stderr]    --> src/lib.rs:175:37
[INFO] [stderr]     |
[INFO] [stderr] 175 |     type Item = Result<&'b str, io::CharsError>;
[INFO] [stderr]     |                                     ^^^^^^^^^^ not found in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stderr]    --> src/lib.rs:178:51
[INFO] [stderr]     |
[INFO] [stderr] 178 |     fn next(&mut self) -> Option<Result<&str, io::CharsError>> {
[INFO] [stderr]     |                                                   ^^^^^^^^^^ not found in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0207]: the lifetime parameter `'a` is not constrained by the impl trait, self type, or predicates
[INFO] [stderr]   --> src/lib.rs:82:6
[INFO] [stderr]    |
[INFO] [stderr] 82 | impl<'a, R: Read> Iterator for Tokenizer<R> {
[INFO] [stderr]    |      ^^ unconstrained lifetime parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0207]: the lifetime parameter `'b` is not constrained by the impl trait, self type, or predicates
[INFO] [stderr]    --> src/lib.rs:174:11
[INFO] [stderr]     |
[INFO] [stderr] 174 | impl <'a, 'b, R: Read> Iterator for SentenceSplitter<'a, R> {
[INFO] [stderr]     |           ^^ unconstrained lifetime parameter
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0207, E0412, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0207`.
[INFO] [stderr] error: could not compile `token`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1c49f5d82cef68a032cb334b69d71fae886d383926faffb9df1404ce7ed80a5a"`
[INFO] running `"docker" "rm" "-f" "1c49f5d82cef68a032cb334b69d71fae886d383926faffb9df1404ce7ed80a5a"`
[INFO] [stdout] 1c49f5d82cef68a032cb334b69d71fae886d383926faffb9df1404ce7ed80a5a
