[INFO] updating cached repository oldsj/backup-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/oldsj/backup-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/oldsj/backup-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/oldsj/backup-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/oldsj/backup-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/oldsj/backup-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/oldsj/backup-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/oldsj/backup-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e1516e900f76493e1a6e8233c737902145ad97e1
[INFO] sha for GitHub repo oldsj/backup-rs: e1516e900f76493e1a6e8233c737902145ad97e1
[INFO] validating manifest of oldsj/backup-rs 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 oldsj/backup-rs 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 oldsj/backup-rs
[INFO] finished frobbing oldsj/backup-rs
[INFO] frobbed toml for oldsj/backup-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/oldsj/backup-rs/Cargo.toml
[INFO] started frobbing oldsj/backup-rs
[INFO] finished frobbing oldsj/backup-rs
[INFO] frobbed toml for oldsj/backup-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/oldsj/backup-rs/Cargo.toml
[INFO] crate oldsj/backup-rs 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 oldsj/backup-rs against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/oldsj/backup-rs:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 828297ff96bacb14630e86c6a0885d570da271f4cf9c24581558e8f2f3c5cc0d
[INFO] running `"docker" "start" "-a" "828297ff96bacb14630e86c6a0885d570da271f4cf9c24581558e8f2f3c5cc0d"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling filetime v0.1.10
[INFO] [stderr]    Compiling backup-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |             fs::remove_file(file.path());
[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] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.60s
[INFO] running `"docker" "inspect" "828297ff96bacb14630e86c6a0885d570da271f4cf9c24581558e8f2f3c5cc0d"`
[INFO] running `"docker" "rm" "-f" "828297ff96bacb14630e86c6a0885d570da271f4cf9c24581558e8f2f3c5cc0d"`
[INFO] [stdout] 828297ff96bacb14630e86c6a0885d570da271f4cf9c24581558e8f2f3c5cc0d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/oldsj/backup-rs:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 607c18c7ea55fc0220520095f1242f0e496c382e3e726fb9b45c357e31e2abe0
[INFO] running `"docker" "start" "-a" "607c18c7ea55fc0220520095f1242f0e496c382e3e726fb9b45c357e31e2abe0"`
[INFO] [stderr]    Compiling backup-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |             fs::remove_file(file.path());
[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] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "607c18c7ea55fc0220520095f1242f0e496c382e3e726fb9b45c357e31e2abe0"`
[INFO] running `"docker" "rm" "-f" "607c18c7ea55fc0220520095f1242f0e496c382e3e726fb9b45c357e31e2abe0"`
[INFO] [stdout] 607c18c7ea55fc0220520095f1242f0e496c382e3e726fb9b45c357e31e2abe0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/oldsj/backup-rs:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 33d8b026e76b1b552eb89fe90d55f654ce9ecac66bc902fe69438bf473196e69
[INFO] running `"docker" "start" "-a" "33d8b026e76b1b552eb89fe90d55f654ce9ecac66bc902fe69438bf473196e69"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/backup_rs-c1c279fea38da889
[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" "33d8b026e76b1b552eb89fe90d55f654ce9ecac66bc902fe69438bf473196e69"`
[INFO] running `"docker" "rm" "-f" "33d8b026e76b1b552eb89fe90d55f654ce9ecac66bc902fe69438bf473196e69"`
[INFO] [stdout] 33d8b026e76b1b552eb89fe90d55f654ce9ecac66bc902fe69438bf473196e69