[INFO] updating cached repository https://github.com/UnHumbleBen/rust-iterators
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 3cf3a23bd75c89aa207dcfad058f12cdf89fac29
[INFO] testing UnHumbleBen/rust-iterators against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnHumbleBen%2Frust-iterators" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/UnHumbleBen/rust-iterators on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/UnHumbleBen/rust-iterators
[INFO] finished tweaking git repo https://github.com/UnHumbleBen/rust-iterators
[INFO] tweaked toml for git repo https://github.com/UnHumbleBen/rust-iterators written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/UnHumbleBen/rust-iterators already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] d7444673e71bd9a7463e9957854751962943970f27b14926483bad5298077721
[INFO] running `"docker" "start" "-a" "d7444673e71bd9a7463e9957854751962943970f27b14926483bad5298077721"`
[INFO] [stderr]    Compiling iterator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `shoes_in_my_size`
[INFO] [stderr]   --> src/lib.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn shoes_in_my_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lib.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn new() -> Counter {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `"docker" "inspect" "d7444673e71bd9a7463e9957854751962943970f27b14926483bad5298077721"`
[INFO] running `"docker" "rm" "-f" "d7444673e71bd9a7463e9957854751962943970f27b14926483bad5298077721"`
[INFO] [stdout] d7444673e71bd9a7463e9957854751962943970f27b14926483bad5298077721
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 923186e6cd7c0d5d470b667404f7fdd771d15bfce5b18bab1c5d94b7f1078b40
[INFO] running `"docker" "start" "-a" "923186e6cd7c0d5d470b667404f7fdd771d15bfce5b18bab1c5d94b7f1078b40"`
[INFO] [stderr]    Compiling iterator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "923186e6cd7c0d5d470b667404f7fdd771d15bfce5b18bab1c5d94b7f1078b40"`
[INFO] running `"docker" "rm" "-f" "923186e6cd7c0d5d470b667404f7fdd771d15bfce5b18bab1c5d94b7f1078b40"`
[INFO] [stdout] 923186e6cd7c0d5d470b667404f7fdd771d15bfce5b18bab1c5d94b7f1078b40
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 368a9823bd187302e2f3fc20c87d6e1146fd531db8301e573dc323dd5422a092
[INFO] running `"docker" "start" "-a" "368a9823bd187302e2f3fc20c87d6e1146fd531db8301e573dc323dd5422a092"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/iterator-7c831ce9c768b39d
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test calling_next_directly ... ok
[INFO] [stdout] test iterator_demonstration ... ok
[INFO] [stdout] test filters_by_size ... ok
[INFO] [stdout] test iterator_sum ... ok
[INFO] [stdout] test using_other_iterator_trait_methods ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/iterator-3b35f18ee6462849
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iterator
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "368a9823bd187302e2f3fc20c87d6e1146fd531db8301e573dc323dd5422a092"`
[INFO] running `"docker" "rm" "-f" "368a9823bd187302e2f3fc20c87d6e1146fd531db8301e573dc323dd5422a092"`
[INFO] [stdout] 368a9823bd187302e2f3fc20c87d6e1146fd531db8301e573dc323dd5422a092