[INFO] updating cached repository nnao45/roor
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nnao45/roor
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nnao45/roor" "work/ex/beta-1.38-1/sources/1.37.0/gh/nnao45/roor"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nnao45/roor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nnao45/roor" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nnao45/roor"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nnao45/roor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2072b56185c7100f6eec571c48a26c9c2cf270f7
[INFO] sha for GitHub repo nnao45/roor: 2072b56185c7100f6eec571c48a26c9c2cf270f7
[INFO] validating manifest of nnao45/roor 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 nnao45/roor 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 nnao45/roor
[INFO] finished frobbing nnao45/roor
[INFO] frobbed toml for nnao45/roor written to work/ex/beta-1.38-1/sources/1.37.0/gh/nnao45/roor/Cargo.toml
[INFO] started frobbing nnao45/roor
[INFO] finished frobbing nnao45/roor
[INFO] frobbed toml for nnao45/roor written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nnao45/roor/Cargo.toml
[INFO] crate nnao45/roor 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 nnao45/roor against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nnao45/roor:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 264a3cddba227107374ff4702bd6f566f985590028da78882fb3ed89a7a0dec2
[INFO] running `"docker" "start" "-a" "264a3cddba227107374ff4702bd6f566f985590028da78882fb3ed89a7a0dec2"`
[INFO] [stderr]    Compiling dntk v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `stty_os_flag` is never read
[INFO] [stderr]   --> src/main.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut stty_os_flag = "";
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/main.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let output = if cfg!(target_os = "darwin") {
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "264a3cddba227107374ff4702bd6f566f985590028da78882fb3ed89a7a0dec2"`
[INFO] running `"docker" "rm" "-f" "264a3cddba227107374ff4702bd6f566f985590028da78882fb3ed89a7a0dec2"`
[INFO] [stdout] 264a3cddba227107374ff4702bd6f566f985590028da78882fb3ed89a7a0dec2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nnao45/roor:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5f675b77b0f95bcc2531f03af5cae5b1b5755d4e56fe646c102b0d6c1ee684b4
[INFO] running `"docker" "start" "-a" "5f675b77b0f95bcc2531f03af5cae5b1b5755d4e56fe646c102b0d6c1ee684b4"`
[INFO] [stderr]    Compiling dntk v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `stty_os_flag` is never read
[INFO] [stderr]   --> src/main.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut stty_os_flag = "";
[INFO] [stderr]    |             ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/main.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let output = if cfg!(target_os = "darwin") {
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_output`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "5f675b77b0f95bcc2531f03af5cae5b1b5755d4e56fe646c102b0d6c1ee684b4"`
[INFO] running `"docker" "rm" "-f" "5f675b77b0f95bcc2531f03af5cae5b1b5755d4e56fe646c102b0d6c1ee684b4"`
[INFO] [stdout] 5f675b77b0f95bcc2531f03af5cae5b1b5755d4e56fe646c102b0d6c1ee684b4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nnao45/roor:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] cde731b414a7ac6d7a8ffaf95633096af2f880c05f1acf8775726a06c4f9bea9
[INFO] running `"docker" "start" "-a" "cde731b414a7ac6d7a8ffaf95633096af2f880c05f1acf8775726a06c4f9bea9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dntk-dbf3dcde40849ad2
[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" "cde731b414a7ac6d7a8ffaf95633096af2f880c05f1acf8775726a06c4f9bea9"`
[INFO] running `"docker" "rm" "-f" "cde731b414a7ac6d7a8ffaf95633096af2f880c05f1acf8775726a06c4f9bea9"`
[INFO] [stdout] cde731b414a7ac6d7a8ffaf95633096af2f880c05f1acf8775726a06c4f9bea9