[INFO] updating cached repository zikani03/git-down
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zikani03/git-down
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zikani03/git-down" "work/ex/beta-1.38-1/sources/1.37.0/gh/zikani03/git-down"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/zikani03/git-down'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zikani03/git-down" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zikani03/git-down"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zikani03/git-down'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8612a59cb8e4beaf467ec900dd5b4afdbfe36da0
[INFO] sha for GitHub repo zikani03/git-down: 8612a59cb8e4beaf467ec900dd5b4afdbfe36da0
[INFO] validating manifest of zikani03/git-down 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 zikani03/git-down 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 zikani03/git-down
[INFO] finished frobbing zikani03/git-down
[INFO] frobbed toml for zikani03/git-down written to work/ex/beta-1.38-1/sources/1.37.0/gh/zikani03/git-down/Cargo.toml
[INFO] started frobbing zikani03/git-down
[INFO] finished frobbing zikani03/git-down
[INFO] frobbed toml for zikani03/git-down written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zikani03/git-down/Cargo.toml
[INFO] crate zikani03/git-down 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 zikani03/git-down 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-2/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/zikani03/git-down:/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] ff3fda4f351915a39d1d0dafb67c10f1c9d1cfee2819fcf29ae01a505b720e20
[INFO] running `"docker" "start" "-a" "ff3fda4f351915a39d1d0dafb67c10f1c9d1cfee2819fcf29ae01a505b720e20"`
[INFO] [stderr]    Compiling git-down v0.2.0-beta (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `pos` is never read
[INFO] [stderr]    --> src/main.rs:145:13
[INFO] [stderr]     |
[INFO] [stderr] 145 |     let mut pos = 0;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "ff3fda4f351915a39d1d0dafb67c10f1c9d1cfee2819fcf29ae01a505b720e20"`
[INFO] running `"docker" "rm" "-f" "ff3fda4f351915a39d1d0dafb67c10f1c9d1cfee2819fcf29ae01a505b720e20"`
[INFO] [stdout] ff3fda4f351915a39d1d0dafb67c10f1c9d1cfee2819fcf29ae01a505b720e20
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/zikani03/git-down:/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] 968a3fb40f2da50f0ca152107499117206118400224b50ee11753cc1b0174c30
[INFO] running `"docker" "start" "-a" "968a3fb40f2da50f0ca152107499117206118400224b50ee11753cc1b0174c30"`
[INFO] [stderr]    Compiling git-down v0.2.0-beta (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `pos` is never read
[INFO] [stderr]    --> src/main.rs:145:13
[INFO] [stderr]     |
[INFO] [stderr] 145 |     let mut pos = 0;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "968a3fb40f2da50f0ca152107499117206118400224b50ee11753cc1b0174c30"`
[INFO] running `"docker" "rm" "-f" "968a3fb40f2da50f0ca152107499117206118400224b50ee11753cc1b0174c30"`
[INFO] [stdout] 968a3fb40f2da50f0ca152107499117206118400224b50ee11753cc1b0174c30
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/zikani03/git-down:/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] 29f722dd33707f4fd29a10f94aa3689a5c1e406e2b233c0469ae9167e7f2183a
[INFO] running `"docker" "start" "-a" "29f722dd33707f4fd29a10f94aa3689a5c1e406e2b233c0469ae9167e7f2183a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_down-a4ccd85c2f808de5
[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" "29f722dd33707f4fd29a10f94aa3689a5c1e406e2b233c0469ae9167e7f2183a"`
[INFO] running `"docker" "rm" "-f" "29f722dd33707f4fd29a10f94aa3689a5c1e406e2b233c0469ae9167e7f2183a"`
[INFO] [stdout] 29f722dd33707f4fd29a10f94aa3689a5c1e406e2b233c0469ae9167e7f2183a