[INFO] updating cached repository just-cli/just-extension
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/just-cli/just-extension
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/just-cli/just-extension" "work/ex/beta-1.38-1/sources/1.37.0/gh/just-cli/just-extension"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/just-cli/just-extension'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/just-cli/just-extension" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/just-cli/just-extension"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/just-cli/just-extension'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7345f0707cade8b98cefa57572ea3356542d238f
[INFO] sha for GitHub repo just-cli/just-extension: 7345f0707cade8b98cefa57572ea3356542d238f
[INFO] validating manifest of just-cli/just-extension 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 just-cli/just-extension 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 just-cli/just-extension
[INFO] finished frobbing just-cli/just-extension
[INFO] frobbed toml for just-cli/just-extension written to work/ex/beta-1.38-1/sources/1.37.0/gh/just-cli/just-extension/Cargo.toml
[INFO] started frobbing just-cli/just-extension
[INFO] finished frobbing just-cli/just-extension
[INFO] frobbed toml for just-cli/just-extension written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/just-cli/just-extension/Cargo.toml
[INFO] crate just-cli/just-extension 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 just-cli/just-extension 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-6/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/just-cli/just-extension:/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] 83185673b4ea8fdb09562684f0008bca7fa96bf7ba97c8beb46b3469ca727347
[INFO] running `"docker" "start" "-a" "83185673b4ea8fdb09562684f0008bca7fa96bf7ba97c8beb46b3469ca727347"`
[INFO] [stderr]    Compiling winapi v0.3.6
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling shared_child v0.3.3
[INFO] [stderr]    Compiling os_pipe v0.7.0
[INFO] [stderr]    Compiling duct v0.11.1
[INFO] [stderr]    Compiling just-core v0.1.0 (https://github.com/just-cli/just-core#ddf9fedf)
[INFO] [stderr]    Compiling just-extension v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.60s
[INFO] running `"docker" "inspect" "83185673b4ea8fdb09562684f0008bca7fa96bf7ba97c8beb46b3469ca727347"`
[INFO] running `"docker" "rm" "-f" "83185673b4ea8fdb09562684f0008bca7fa96bf7ba97c8beb46b3469ca727347"`
[INFO] [stdout] 83185673b4ea8fdb09562684f0008bca7fa96bf7ba97c8beb46b3469ca727347
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/just-cli/just-extension:/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] 17f50951a3e6eaca8f2826ea2066c88ce77e1e64b2e7953b9df4861cf86bf0c3
[INFO] running `"docker" "start" "-a" "17f50951a3e6eaca8f2826ea2066c88ce77e1e64b2e7953b9df4861cf86bf0c3"`
[INFO] [stderr]    Compiling just-extension v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `"docker" "inspect" "17f50951a3e6eaca8f2826ea2066c88ce77e1e64b2e7953b9df4861cf86bf0c3"`
[INFO] running `"docker" "rm" "-f" "17f50951a3e6eaca8f2826ea2066c88ce77e1e64b2e7953b9df4861cf86bf0c3"`
[INFO] [stdout] 17f50951a3e6eaca8f2826ea2066c88ce77e1e64b2e7953b9df4861cf86bf0c3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/just-cli/just-extension:/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] 93654790cd52e646e06e8f175cc0edb53356e5c13bdd62747ce78c5b123b27b1
[INFO] running `"docker" "start" "-a" "93654790cd52e646e06e8f175cc0edb53356e5c13bdd62747ce78c5b123b27b1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/just_extension-9c12a9b7adf8cd81
[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] [stderr]    Doc-tests just-extension
[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" "93654790cd52e646e06e8f175cc0edb53356e5c13bdd62747ce78c5b123b27b1"`
[INFO] running `"docker" "rm" "-f" "93654790cd52e646e06e8f175cc0edb53356e5c13bdd62747ce78c5b123b27b1"`
[INFO] [stdout] 93654790cd52e646e06e8f175cc0edb53356e5c13bdd62747ce78c5b123b27b1