[INFO] updating cached repository System-rat/backup-rat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/System-rat/backup-rat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/System-rat/backup-rat" "work/ex/beta-1.38-1/sources/1.37.0/gh/System-rat/backup-rat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/System-rat/backup-rat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/System-rat/backup-rat" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/System-rat/backup-rat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/System-rat/backup-rat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d4673eaa45d893fb68636edd99bcb51983fd2df4
[INFO] sha for GitHub repo System-rat/backup-rat: d4673eaa45d893fb68636edd99bcb51983fd2df4
[INFO] validating manifest of System-rat/backup-rat on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of System-rat/backup-rat on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing System-rat/backup-rat
[INFO] finished frobbing System-rat/backup-rat
[INFO] frobbed toml for System-rat/backup-rat written to work/ex/beta-1.38-1/sources/1.37.0/gh/System-rat/backup-rat/Cargo.toml
[INFO] started frobbing System-rat/backup-rat
[INFO] finished frobbing System-rat/backup-rat
[INFO] frobbed toml for System-rat/backup-rat written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/System-rat/backup-rat/Cargo.toml
[INFO] crate System-rat/backup-rat already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing System-rat/backup-rat against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/System-rat/backup-rat:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 5c19fb71d8924ee29ef99e660e89d2860f632e60a968ea370e1f39a8245c25b7
[INFO] running `"docker" "start" "-a" "5c19fb71d8924ee29ef99e660e89d2860f632e60a968ea370e1f39a8245c25b7"`
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling directories v1.0.1
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling regex-syntax v0.6.1
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling backup_rat v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/operations.rs:186:21
[INFO] [stderr]     |
[INFO] [stderr] 186 |                     create_dir(&entry.1).is_ok();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/operations.rs:304:17
[INFO] [stderr]     |
[INFO] [stderr] 304 |                 remove_dir_all(directory.join(new_min)).is_ok();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.53s
[INFO] running `"docker" "inspect" "5c19fb71d8924ee29ef99e660e89d2860f632e60a968ea370e1f39a8245c25b7"`
[INFO] running `"docker" "rm" "-f" "5c19fb71d8924ee29ef99e660e89d2860f632e60a968ea370e1f39a8245c25b7"`
[INFO] [stdout] 5c19fb71d8924ee29ef99e660e89d2860f632e60a968ea370e1f39a8245c25b7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/System-rat/backup-rat:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1aef63f7ddc54efe7d73094ed0d5e5411c655ecfb9b1e273271009680efdfe52
[INFO] running `"docker" "start" "-a" "1aef63f7ddc54efe7d73094ed0d5e5411c655ecfb9b1e273271009680efdfe52"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling backup_rat v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/operations.rs:186:21
[INFO] [stderr]     |
[INFO] [stderr] 186 |                     create_dir(&entry.1).is_ok();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/operations.rs:304:17
[INFO] [stderr]     |
[INFO] [stderr] 304 |                 remove_dir_all(directory.join(new_min)).is_ok();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `"docker" "inspect" "1aef63f7ddc54efe7d73094ed0d5e5411c655ecfb9b1e273271009680efdfe52"`
[INFO] running `"docker" "rm" "-f" "1aef63f7ddc54efe7d73094ed0d5e5411c655ecfb9b1e273271009680efdfe52"`
[INFO] [stdout] 1aef63f7ddc54efe7d73094ed0d5e5411c655ecfb9b1e273271009680efdfe52
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/System-rat/backup-rat:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 16be8712b14ef6acddbe62bd57a7c61aedf34d68863bc74518057f9b57162572
[INFO] running `"docker" "start" "-a" "16be8712b14ef6acddbe62bd57a7c61aedf34d68863bc74518057f9b57162572"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/backup_rat-114cc01ff314e283
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test config::loading_from_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "16be8712b14ef6acddbe62bd57a7c61aedf34d68863bc74518057f9b57162572"`
[INFO] running `"docker" "rm" "-f" "16be8712b14ef6acddbe62bd57a7c61aedf34d68863bc74518057f9b57162572"`
[INFO] [stdout] 16be8712b14ef6acddbe62bd57a7c61aedf34d68863bc74518057f9b57162572