[INFO] updating cached repository jlebon/codeswitch
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jlebon/codeswitch
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jlebon/codeswitch" "work/ex/beta-1.38-1/sources/1.37.0/gh/jlebon/codeswitch"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jlebon/codeswitch'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jlebon/codeswitch" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jlebon/codeswitch"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jlebon/codeswitch'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4aa2907f733e349753f74df5e9e0c9cd0e25f8ca
[INFO] sha for GitHub repo jlebon/codeswitch: 4aa2907f733e349753f74df5e9e0c9cd0e25f8ca
[INFO] validating manifest of jlebon/codeswitch 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 jlebon/codeswitch 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 jlebon/codeswitch
[INFO] finished frobbing jlebon/codeswitch
[INFO] frobbed toml for jlebon/codeswitch written to work/ex/beta-1.38-1/sources/1.37.0/gh/jlebon/codeswitch/Cargo.toml
[INFO] started frobbing jlebon/codeswitch
[INFO] finished frobbing jlebon/codeswitch
[INFO] frobbed toml for jlebon/codeswitch written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jlebon/codeswitch/Cargo.toml
[INFO] crate jlebon/codeswitch 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 jlebon/codeswitch 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jlebon/codeswitch:/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] 260cf86fa0251ddec68b316e700ee65abac23a67c5ddb491369e3b97039ba377
[INFO] running `"docker" "start" "-a" "260cf86fa0251ddec68b316e700ee65abac23a67c5ddb491369e3b97039ba377"`
[INFO] [stderr]    Compiling openat v0.1.13
[INFO] [stderr]    Compiling clap v2.30.0
[INFO] [stderr]    Compiling codeswitch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/main.rs:79:33
[INFO] [stderr]    |
[INFO] [stderr] 79 |     let cachefn = cachedir.join((crate_name!()));
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[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:67:26
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let cachedir = match std::env::home_dir() {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.85s
[INFO] running `"docker" "inspect" "260cf86fa0251ddec68b316e700ee65abac23a67c5ddb491369e3b97039ba377"`
[INFO] running `"docker" "rm" "-f" "260cf86fa0251ddec68b316e700ee65abac23a67c5ddb491369e3b97039ba377"`
[INFO] [stdout] 260cf86fa0251ddec68b316e700ee65abac23a67c5ddb491369e3b97039ba377
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jlebon/codeswitch:/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] 0ae65ed65cb502d257ad3b03d5b3fa73a98cd5cbf3fb05dd07df3535174490b1
[INFO] running `"docker" "start" "-a" "0ae65ed65cb502d257ad3b03d5b3fa73a98cd5cbf3fb05dd07df3535174490b1"`
[INFO] [stderr]    Compiling codeswitch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/main.rs:79:33
[INFO] [stderr]    |
[INFO] [stderr] 79 |     let cachefn = cachedir.join((crate_name!()));
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[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:67:26
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let cachedir = match std::env::home_dir() {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "0ae65ed65cb502d257ad3b03d5b3fa73a98cd5cbf3fb05dd07df3535174490b1"`
[INFO] running `"docker" "rm" "-f" "0ae65ed65cb502d257ad3b03d5b3fa73a98cd5cbf3fb05dd07df3535174490b1"`
[INFO] [stdout] 0ae65ed65cb502d257ad3b03d5b3fa73a98cd5cbf3fb05dd07df3535174490b1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jlebon/codeswitch:/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] bca9d6ad44980128f20143cf8d716da99e17531083b43cd659913c5e084443d7
[INFO] running `"docker" "start" "-a" "bca9d6ad44980128f20143cf8d716da99e17531083b43cd659913c5e084443d7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/codeswitch-3fcd5844a0421b14
[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" "bca9d6ad44980128f20143cf8d716da99e17531083b43cd659913c5e084443d7"`
[INFO] running `"docker" "rm" "-f" "bca9d6ad44980128f20143cf8d716da99e17531083b43cd659913c5e084443d7"`
[INFO] [stdout] bca9d6ad44980128f20143cf8d716da99e17531083b43cd659913c5e084443d7