[INFO] updating cached repository zaubermaerchen/roco
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zaubermaerchen/roco
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zaubermaerchen/roco" "work/ex/beta-1.37-6/sources/1.36.0/gh/zaubermaerchen/roco"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/zaubermaerchen/roco'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zaubermaerchen/roco" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zaubermaerchen/roco"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zaubermaerchen/roco'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 19b86d9255b1c403f2f93cc239cb302ea0f7c48d
[INFO] sha for GitHub repo zaubermaerchen/roco: 19b86d9255b1c403f2f93cc239cb302ea0f7c48d
[INFO] validating manifest of zaubermaerchen/roco on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zaubermaerchen/roco on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing zaubermaerchen/roco
[INFO] finished frobbing zaubermaerchen/roco
[INFO] frobbed toml for zaubermaerchen/roco written to work/ex/beta-1.37-6/sources/1.36.0/gh/zaubermaerchen/roco/Cargo.toml
[INFO] started frobbing zaubermaerchen/roco
[INFO] finished frobbing zaubermaerchen/roco
[INFO] frobbed toml for zaubermaerchen/roco written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zaubermaerchen/roco/Cargo.toml
[INFO] crate zaubermaerchen/roco already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing zaubermaerchen/roco against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zaubermaerchen/roco:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 6cb0fefeb0fb762d39dca67be7a90dbe6cae0de4c999f2c1dd02826bd911aff3
[INFO] running `"docker" "start" "-a" "6cb0fefeb0fb762d39dca67be7a90dbe6cae0de4c999f2c1dd02826bd911aff3"`
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling roco v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/main.rs:47:28
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let path: PathBuf = match env::home_dir() {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:32:4
[INFO] [stderr]    |
[INFO] [stderr] 32 |             writeln!(&mut std::io::stderr(), "{}", e);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/yaml_parser.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 |             writeln!(&mut std::io::stderr(), "{}", e);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `"docker" "inspect" "6cb0fefeb0fb762d39dca67be7a90dbe6cae0de4c999f2c1dd02826bd911aff3"`
[INFO] running `"docker" "rm" "-f" "6cb0fefeb0fb762d39dca67be7a90dbe6cae0de4c999f2c1dd02826bd911aff3"`
[INFO] [stdout] 6cb0fefeb0fb762d39dca67be7a90dbe6cae0de4c999f2c1dd02826bd911aff3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zaubermaerchen/roco:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 438141df547cae8d29bcc92c989ce9a7f650f34a17314bc5b0e5a4eb5c94ed5c
[INFO] running `"docker" "start" "-a" "438141df547cae8d29bcc92c989ce9a7f650f34a17314bc5b0e5a4eb5c94ed5c"`
[INFO] [stderr]    Compiling roco v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]   --> src/main.rs:47:28
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let path: PathBuf = match env::home_dir() {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:32:4
[INFO] [stderr]    |
[INFO] [stderr] 32 |             writeln!(&mut std::io::stderr(), "{}", e);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/yaml_parser.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 |             writeln!(&mut std::io::stderr(), "{}", e);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "438141df547cae8d29bcc92c989ce9a7f650f34a17314bc5b0e5a4eb5c94ed5c"`
[INFO] running `"docker" "rm" "-f" "438141df547cae8d29bcc92c989ce9a7f650f34a17314bc5b0e5a4eb5c94ed5c"`
[INFO] [stdout] 438141df547cae8d29bcc92c989ce9a7f650f34a17314bc5b0e5a4eb5c94ed5c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/zaubermaerchen/roco:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 85107fb646c01fd21f54048de0993f21a6fd47faf169657d9266c1ef29edd0ef
[INFO] running `"docker" "start" "-a" "85107fb646c01fd21f54048de0993f21a6fd47faf169657d9266c1ef29edd0ef"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/roco-ac142e9f962d5326
[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" "85107fb646c01fd21f54048de0993f21a6fd47faf169657d9266c1ef29edd0ef"`
[INFO] running `"docker" "rm" "-f" "85107fb646c01fd21f54048de0993f21a6fd47faf169657d9266c1ef29edd0ef"`
[INFO] [stdout] 85107fb646c01fd21f54048de0993f21a6fd47faf169657d9266c1ef29edd0ef