[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-1.37-6/sources/1.36.0/gh/just-cli/just-versions"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/just-cli/just-versions'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/just-cli/just-versions" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/just-cli/just-versions"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of just-cli/just-versions on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing just-cli/just-versions against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 4c4865524015c16be82e53a6a4f312e649acc08d9ff8571e4ee64724662afe6c
[INFO] running `"docker" "start" "-a" "4c4865524015c16be82e53a6a4f312e649acc08d9ff8571e4ee64724662afe6c"`
[INFO] [stderr]    Compiling winapi v0.3.6
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling serde_derive v1.0.84
[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#dcd7d8a4)
[INFO] [stderr]    Compiling just-versions v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.75s
[INFO] running `"docker" "inspect" "4c4865524015c16be82e53a6a4f312e649acc08d9ff8571e4ee64724662afe6c"`
[INFO] running `"docker" "rm" "-f" "4c4865524015c16be82e53a6a4f312e649acc08d9ff8571e4ee64724662afe6c"`
[INFO] [stdout] 4c4865524015c16be82e53a6a4f312e649acc08d9ff8571e4ee64724662afe6c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] a62d14682c1069b6de15b375228ee1ae2b2feeec4f4211c001c1c5adcdf262bd
[INFO] running `"docker" "start" "-a" "a62d14682c1069b6de15b375228ee1ae2b2feeec4f4211c001c1c5adcdf262bd"`
[INFO] [stderr]    Compiling just-versions v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `"docker" "inspect" "a62d14682c1069b6de15b375228ee1ae2b2feeec4f4211c001c1c5adcdf262bd"`
[INFO] running `"docker" "rm" "-f" "a62d14682c1069b6de15b375228ee1ae2b2feeec4f4211c001c1c5adcdf262bd"`
[INFO] [stdout] a62d14682c1069b6de15b375228ee1ae2b2feeec4f4211c001c1c5adcdf262bd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 04e7f7f9bfefebce76ae6392a5629f8e6200e7aec3696c39abfef1102b50de6e
[INFO] running `"docker" "start" "-a" "04e7f7f9bfefebce76ae6392a5629f8e6200e7aec3696c39abfef1102b50de6e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/just_versions-b2f6ef4835009d92
[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" "04e7f7f9bfefebce76ae6392a5629f8e6200e7aec3696c39abfef1102b50de6e"`
[INFO] running `"docker" "rm" "-f" "04e7f7f9bfefebce76ae6392a5629f8e6200e7aec3696c39abfef1102b50de6e"`
[INFO] [stdout] 04e7f7f9bfefebce76ae6392a5629f8e6200e7aec3696c39abfef1102b50de6e