[INFO] updating cached repository https://github.com/PSeitz/neural_japanese_tokenizer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 262ee46d040a95c1929f8bb662cfa5ae9f7bc80c
[INFO] testing PSeitz/neural_japanese_tokenizer against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPSeitz%2Fneural_japanese_tokenizer" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PSeitz/neural_japanese_tokenizer on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/PSeitz/neural_japanese_tokenizer
[INFO] finished tweaking git repo https://github.com/PSeitz/neural_japanese_tokenizer
[INFO] tweaked toml for git repo https://github.com/PSeitz/neural_japanese_tokenizer written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/PSeitz/neural_japanese_tokenizer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5920f0a4207d4cbf4a7c597d58768cc26c4c78d7220626b3a4a83bc87e21622b
[INFO] running `"docker" "start" "-a" "5920f0a4207d4cbf4a7c597d58768cc26c4c78d7220626b3a4a83bc87e21622b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling thread-id v3.1.0
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling itertools v0.6.0
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling neural_japanese_tokenizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[macro_use] extern crate itertools;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]   --> src/main.rs:56:58
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let all_chars = sentences.iter().map(|el|el.chars()).flatten().collect_vec();
[INFO] [stderr]    |                                                          ^^^^^^^ multiple `flatten` found
[INFO] [stderr]    |
[INFO] [stderr]    = note: candidate #1 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Map<I, F>`
[INFO] [stderr]    = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stderr] help: disambiguate the associated function for candidate #1
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let all_chars = std::iter::Iterator::flatten(sentences.iter().map(|el|el.chars())).collect_vec();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: disambiguate the associated function for candidate #2
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let all_chars = itertools::Itertools::flatten(sentences.iter().map(|el|el.chars())).collect_vec();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0034`.
[INFO] [stderr] error: could not compile `neural_japanese_tokenizer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5920f0a4207d4cbf4a7c597d58768cc26c4c78d7220626b3a4a83bc87e21622b"`
[INFO] running `"docker" "rm" "-f" "5920f0a4207d4cbf4a7c597d58768cc26c4c78d7220626b3a4a83bc87e21622b"`
[INFO] [stdout] 5920f0a4207d4cbf4a7c597d58768cc26c4c78d7220626b3a4a83bc87e21622b