[INFO] updating cached repository https://github.com/cowpig/go_rusty
[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] a8d7066d092fbc5dfab6974b9b22d4a519bcb7a4
[INFO] testing cowpig/go_rusty against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcowpig%2Fgo_rusty" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cowpig/go_rusty 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/cowpig/go_rusty
[INFO] finished tweaking git repo https://github.com/cowpig/go_rusty
[INFO] tweaked toml for git repo https://github.com/cowpig/go_rusty written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/cowpig/go_rusty 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] 9b82493e7d9e8228020de50081cbffd4613fd7983ac06539167de095e2c521d4
[INFO] running `"docker" "start" "-a" "9b82493e7d9e8228020de50081cbffd4613fd7983ac06539167de095e2c521d4"`
[INFO] [stderr]    Compiling go v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/board.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         try!(match color {
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/board.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |         try!(match self[coord.clone()] {
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:118:17
[INFO] [stderr]     |
[INFO] [stderr] 118 |                 try!(tile.fmt(formatter));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:119:17
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 try!(formatter.write_str(" "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:121:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |             try!(formatter.write_str("\n"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/board.rs:67:25
[INFO] [stderr]    |
[INFO] [stderr] 67 |             if let Some(mut captures) = self.get_captures(
[INFO] [stderr]    |                         ----^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `"docker" "inspect" "9b82493e7d9e8228020de50081cbffd4613fd7983ac06539167de095e2c521d4"`
[INFO] running `"docker" "rm" "-f" "9b82493e7d9e8228020de50081cbffd4613fd7983ac06539167de095e2c521d4"`
[INFO] [stdout] 9b82493e7d9e8228020de50081cbffd4613fd7983ac06539167de095e2c521d4
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] 7545593cf635ce20fa61b31b65a42d10a8a8d7247209ac6acb3fa34952fdf6a6
[INFO] running `"docker" "start" "-a" "7545593cf635ce20fa61b31b65a42d10a8a8d7247209ac6acb3fa34952fdf6a6"`
[INFO] [stderr]    Compiling go v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/board.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         try!(match color {
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/board.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |         try!(match self[coord.clone()] {
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:118:17
[INFO] [stderr]     |
[INFO] [stderr] 118 |                 try!(tile.fmt(formatter));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:119:17
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 try!(formatter.write_str(" "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/board.rs:121:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |             try!(formatter.write_str("\n"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/board.rs:67:25
[INFO] [stderr]    |
[INFO] [stderr] 67 |             if let Some(mut captures) = self.get_captures(
[INFO] [stderr]    |                         ----^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "7545593cf635ce20fa61b31b65a42d10a8a8d7247209ac6acb3fa34952fdf6a6"`
[INFO] running `"docker" "rm" "-f" "7545593cf635ce20fa61b31b65a42d10a8a8d7247209ac6acb3fa34952fdf6a6"`
[INFO] [stdout] 7545593cf635ce20fa61b31b65a42d10a8a8d7247209ac6acb3fa34952fdf6a6
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] 112cc794f638ce9d6e7305eb5bae13c43e4d0b11296c58e3d4bfe2adf68cb00e
[INFO] running `"docker" "start" "-a" "112cc794f638ce9d6e7305eb5bae13c43e4d0b11296c58e3d4bfe2adf68cb00e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/go-7a276f841e3c5fe8
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/go-970575e6a566cfe9
[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 go
[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" "112cc794f638ce9d6e7305eb5bae13c43e4d0b11296c58e3d4bfe2adf68cb00e"`
[INFO] running `"docker" "rm" "-f" "112cc794f638ce9d6e7305eb5bae13c43e4d0b11296c58e3d4bfe2adf68cb00e"`
[INFO] [stdout] 112cc794f638ce9d6e7305eb5bae13c43e4d0b11296c58e3d4bfe2adf68cb00e