[INFO] updating cached repository just-cli/just-versions
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/just-cli/just-versions
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/just-cli/just-versions" "work/ex/beta-1.38-1/sources/1.37.0/gh/just-cli/just-versions"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/just-cli/just-versions'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/just-cli/just-versions" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/just-cli/just-versions"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/just-cli/just-versions'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a4a36d35bad78078e5cd610541ec305551567bd4
[INFO] sha for GitHub repo just-cli/just-versions: a4a36d35bad78078e5cd610541ec305551567bd4
[INFO] validating manifest of just-cli/just-versions 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-versions 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-versions
[INFO] finished frobbing just-cli/just-versions
[INFO] frobbed toml for just-cli/just-versions written to work/ex/beta-1.38-1/sources/1.37.0/gh/just-cli/just-versions/Cargo.toml
[INFO] started frobbing just-cli/just-versions
[INFO] finished frobbing just-cli/just-versions
[INFO] frobbed toml for just-cli/just-versions written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/just-cli/just-versions/Cargo.toml
[INFO] crate just-cli/just-versions 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-versions 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/just-cli/just-versions:/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] 22588c0c8de2ba8ab90b6c096ee218b8c6a66dd06057461f957b2f5320061241
[INFO] running `"docker" "start" "-a" "22588c0c8de2ba8ab90b6c096ee218b8c6a66dd06057461f957b2f5320061241"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling winapi v0.3.6
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling serde v1.0.84
[INFO] [stderr]    Compiling walkdir v2.2.7
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling shared_child v0.3.3
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling os_pipe v0.7.0
[INFO] [stderr]    Compiling duct v0.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling just-core v0.1.0 (https://github.com/just-cli/just-core#dcd7d8a4)
[INFO] [stderr]    Compiling just-versions v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `"docker" "inspect" "22588c0c8de2ba8ab90b6c096ee218b8c6a66dd06057461f957b2f5320061241"`
[INFO] running `"docker" "rm" "-f" "22588c0c8de2ba8ab90b6c096ee218b8c6a66dd06057461f957b2f5320061241"`
[INFO] [stdout] 22588c0c8de2ba8ab90b6c096ee218b8c6a66dd06057461f957b2f5320061241
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/just-cli/just-versions:/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] ad5ad7c0bb46e62ea3cc36390e2ea4a33b640488d3c905aee63fae1db0e60dbe
[INFO] running `"docker" "start" "-a" "ad5ad7c0bb46e62ea3cc36390e2ea4a33b640488d3c905aee63fae1db0e60dbe"`
[INFO] [stderr]    Compiling just-versions v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "ad5ad7c0bb46e62ea3cc36390e2ea4a33b640488d3c905aee63fae1db0e60dbe"`
[INFO] running `"docker" "rm" "-f" "ad5ad7c0bb46e62ea3cc36390e2ea4a33b640488d3c905aee63fae1db0e60dbe"`
[INFO] [stdout] ad5ad7c0bb46e62ea3cc36390e2ea4a33b640488d3c905aee63fae1db0e60dbe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/just-cli/just-versions:/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] 5dcda82ff262894befad0e7b4367f3109352dd1a6fa670a8c429ce5c6dcb4cb2
[INFO] running `"docker" "start" "-a" "5dcda82ff262894befad0e7b4367f3109352dd1a6fa670a8c429ce5c6dcb4cb2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/just_versions-778e9e9807167774
[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-versions
[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" "5dcda82ff262894befad0e7b4367f3109352dd1a6fa670a8c429ce5c6dcb4cb2"`
[INFO] running `"docker" "rm" "-f" "5dcda82ff262894befad0e7b4367f3109352dd1a6fa670a8c429ce5c6dcb4cb2"`
[INFO] [stdout] 5dcda82ff262894befad0e7b4367f3109352dd1a6fa670a8c429ce5c6dcb4cb2