[INFO] updating cached repository jjcamp/linkgen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jjcamp/linkgen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jjcamp/linkgen" "work/ex/beta-1.38-1/sources/1.37.0/gh/jjcamp/linkgen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jjcamp/linkgen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jjcamp/linkgen" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jjcamp/linkgen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jjcamp/linkgen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 62b380a530193a7fada212537b67cd5a9ec33f20
[INFO] sha for GitHub repo jjcamp/linkgen: 62b380a530193a7fada212537b67cd5a9ec33f20
[INFO] validating manifest of jjcamp/linkgen 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 jjcamp/linkgen 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 jjcamp/linkgen
[INFO] finished frobbing jjcamp/linkgen
[INFO] frobbed toml for jjcamp/linkgen written to work/ex/beta-1.38-1/sources/1.37.0/gh/jjcamp/linkgen/Cargo.toml
[INFO] started frobbing jjcamp/linkgen
[INFO] finished frobbing jjcamp/linkgen
[INFO] frobbed toml for jjcamp/linkgen written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jjcamp/linkgen/Cargo.toml
[INFO] crate jjcamp/linkgen 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 jjcamp/linkgen 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/jjcamp/linkgen:/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] 19a52ce7eede1a0fd0399d697e6d757b4101b994edae3cd11be12c3644d92dee
[INFO] running `"docker" "start" "-a" "19a52ce7eede1a0fd0399d697e6d757b4101b994edae3cd11be12c3644d92dee"`
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling winconsole v0.10.0
[INFO] [stderr]    Compiling colored v1.8.0
[INFO] [stderr]    Compiling linkgen v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `exe`
[INFO] [stderr]   --> src/link.rs:31:15
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn ext_helper(exe: &std::ffi::OsStr, alias: &str) -> String {
[INFO] [stderr]    |               ^^^ help: consider prefixing with an underscore: `_exe`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `verbose`
[INFO] [stderr]   --> src/open.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn dir(verbose: bool) -> Result<(), Error> {
[INFO] [stderr]    |            ^^^^^^^ help: consider prefixing with an underscore: `_verbose`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dir_with`
[INFO] [stderr]   --> src/open.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn dir_with(cmd: &str, verbose: bool) -> Result<(), Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.93s
[INFO] running `"docker" "inspect" "19a52ce7eede1a0fd0399d697e6d757b4101b994edae3cd11be12c3644d92dee"`
[INFO] running `"docker" "rm" "-f" "19a52ce7eede1a0fd0399d697e6d757b4101b994edae3cd11be12c3644d92dee"`
[INFO] [stdout] 19a52ce7eede1a0fd0399d697e6d757b4101b994edae3cd11be12c3644d92dee
[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/jjcamp/linkgen:/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] f35ec8ca08c7629bf205d7a014199b881d14053faa41560b5db27631bda68837
[INFO] running `"docker" "start" "-a" "f35ec8ca08c7629bf205d7a014199b881d14053faa41560b5db27631bda68837"`
[INFO] [stderr]    Compiling linkgen v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `exe`
[INFO] [stderr]   --> src/link.rs:31:15
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn ext_helper(exe: &std::ffi::OsStr, alias: &str) -> String {
[INFO] [stderr]    |               ^^^ help: consider prefixing with an underscore: `_exe`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `verbose`
[INFO] [stderr]   --> src/open.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn dir(verbose: bool) -> Result<(), Error> {
[INFO] [stderr]    |            ^^^^^^^ help: consider prefixing with an underscore: `_verbose`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dir_with`
[INFO] [stderr]   --> src/open.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn dir_with(cmd: &str, verbose: bool) -> Result<(), Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "f35ec8ca08c7629bf205d7a014199b881d14053faa41560b5db27631bda68837"`
[INFO] running `"docker" "rm" "-f" "f35ec8ca08c7629bf205d7a014199b881d14053faa41560b5db27631bda68837"`
[INFO] [stdout] f35ec8ca08c7629bf205d7a014199b881d14053faa41560b5db27631bda68837
[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/jjcamp/linkgen:/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] ad9eca9b3e2058276e4b78353f944130a738dacdffbd6bcc91807fc814d76af7
[INFO] running `"docker" "start" "-a" "ad9eca9b3e2058276e4b78353f944130a738dacdffbd6bcc91807fc814d76af7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/linkgen-7c8b3c908d632d85
[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" "ad9eca9b3e2058276e4b78353f944130a738dacdffbd6bcc91807fc814d76af7"`
[INFO] running `"docker" "rm" "-f" "ad9eca9b3e2058276e4b78353f944130a738dacdffbd6bcc91807fc814d76af7"`
[INFO] [stdout] ad9eca9b3e2058276e4b78353f944130a738dacdffbd6bcc91807fc814d76af7