[INFO] updating cached repository https://github.com/brettcannon/flatten_filenames
[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] 07caf91067bc8f95b5d87403cba8d100511eb9a9
[INFO] testing brettcannon/flatten_filenames against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrettcannon%2Fflatten_filenames" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brettcannon/flatten_filenames on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/brettcannon/flatten_filenames
[INFO] finished tweaking git repo https://github.com/brettcannon/flatten_filenames
[INFO] tweaked toml for git repo https://github.com/brettcannon/flatten_filenames written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/brettcannon/flatten_filenames already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] e68d3ed81c7caf519424659e6b60387decc338301326e7648709e129d73f3d05
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "e68d3ed81c7caf519424659e6b60387decc338301326e7648709e129d73f3d05"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling flatten_filenames v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/main.rs:126:30
[INFO] [stderr]     |
[INFO] [stderr] 126 |             println_stderr(e.description().to_string());
[INFO] [stderr]     |                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "e68d3ed81c7caf519424659e6b60387decc338301326e7648709e129d73f3d05"`
[INFO] running `"docker" "rm" "-f" "e68d3ed81c7caf519424659e6b60387decc338301326e7648709e129d73f3d05"`
[INFO] [stdout] e68d3ed81c7caf519424659e6b60387decc338301326e7648709e129d73f3d05
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 46e9b9dda038fe9dcc4923cac9e22c0b06dbd9849303fb38711253d18c0d571f
[INFO] running `"docker" "start" "-a" "46e9b9dda038fe9dcc4923cac9e22c0b06dbd9849303fb38711253d18c0d571f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.15
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling flatten_filenames v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/main.rs:126:30
[INFO] [stderr]     |
[INFO] [stderr] 126 |             println_stderr(e.description().to_string());
[INFO] [stderr]     |                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `"docker" "inspect" "46e9b9dda038fe9dcc4923cac9e22c0b06dbd9849303fb38711253d18c0d571f"`
[INFO] running `"docker" "rm" "-f" "46e9b9dda038fe9dcc4923cac9e22c0b06dbd9849303fb38711253d18c0d571f"`
[INFO] [stdout] 46e9b9dda038fe9dcc4923cac9e22c0b06dbd9849303fb38711253d18c0d571f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9614a2d0755b92d432075723cb96350925efe2b40c6568d2ebced24487cce2d3
[INFO] running `"docker" "start" "-a" "9614a2d0755b92d432075723cb96350925efe2b40c6568d2ebced24487cce2d3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/main.rs:126:30
[INFO] [stderr]     |
[INFO] [stderr] 126 |             println_stderr(e.description().to_string());
[INFO] [stderr]     |                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/flatten_filenames-ec420ea18a3bb841
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test test::new_prefix_empty_old_prefix ... ok
[INFO] [stdout] test test::leading_char_for_filename ... ok
[INFO] [stdout] test test::new_prefix_leading_dash_or_plus ... ok
[INFO] [stdout] test test::new_prefix_works ... ok
[INFO] [stdout] test test::should_traverse_directory ... ok
[INFO] [stdout] test test::should_traverse_not_leading_dot_or_underscore ... ok
[INFO] [stdout] test test::rename_works ... ok
[INFO] [stdout] test test::rename_skips_dot_files ... ok
[INFO] [stdout] test test::should_traverse_not_dir ... ok
[INFO] [stdout] test test::flatten_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9614a2d0755b92d432075723cb96350925efe2b40c6568d2ebced24487cce2d3"`
[INFO] running `"docker" "rm" "-f" "9614a2d0755b92d432075723cb96350925efe2b40c6568d2ebced24487cce2d3"`
[INFO] [stdout] 9614a2d0755b92d432075723cb96350925efe2b40c6568d2ebced24487cce2d3