[INFO] updating cached repository yoshuawuyts/hot-ranking-algorithm-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yoshuawuyts/hot-ranking-algorithm-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yoshuawuyts/hot-ranking-algorithm-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/hot-ranking-algorithm-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/hot-ranking-algorithm-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yoshuawuyts/hot-ranking-algorithm-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoshuawuyts/hot-ranking-algorithm-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoshuawuyts/hot-ranking-algorithm-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f58b66e90543569a9f420bad89c7fd91443d3bc1
[INFO] sha for GitHub repo yoshuawuyts/hot-ranking-algorithm-rs: f58b66e90543569a9f420bad89c7fd91443d3bc1
[INFO] validating manifest of yoshuawuyts/hot-ranking-algorithm-rs 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 yoshuawuyts/hot-ranking-algorithm-rs 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 yoshuawuyts/hot-ranking-algorithm-rs
[INFO] finished frobbing yoshuawuyts/hot-ranking-algorithm-rs
[INFO] frobbed toml for yoshuawuyts/hot-ranking-algorithm-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/hot-ranking-algorithm-rs/Cargo.toml
[INFO] started frobbing yoshuawuyts/hot-ranking-algorithm-rs
[INFO] finished frobbing yoshuawuyts/hot-ranking-algorithm-rs
[INFO] frobbed toml for yoshuawuyts/hot-ranking-algorithm-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yoshuawuyts/hot-ranking-algorithm-rs/Cargo.toml
[INFO] crate yoshuawuyts/hot-ranking-algorithm-rs 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yoshuawuyts/hot-ranking-algorithm-rs/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 yoshuawuyts/hot-ranking-algorithm-rs 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-1/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/yoshuawuyts/hot-ranking-algorithm-rs:/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] afa1d2893c6ec29d990252591fa4936e0d41b32811c116d7e4843c4714bf8e18
[INFO] running `"docker" "start" "-a" "afa1d2893c6ec29d990252591fa4936e0d41b32811c116d7e4843c4714bf8e18"`
[INFO] [stderr]    Compiling hot-ranking-algorithm v2.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "afa1d2893c6ec29d990252591fa4936e0d41b32811c116d7e4843c4714bf8e18"`
[INFO] running `"docker" "rm" "-f" "afa1d2893c6ec29d990252591fa4936e0d41b32811c116d7e4843c4714bf8e18"`
[INFO] [stdout] afa1d2893c6ec29d990252591fa4936e0d41b32811c116d7e4843c4714bf8e18
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/yoshuawuyts/hot-ranking-algorithm-rs:/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] 782888e1ce21ea918ccd26de62d934a1619c5c0f035f427c6fcd8e661f4833e8
[INFO] running `"docker" "start" "-a" "782888e1ce21ea918ccd26de62d934a1619c5c0f035f427c6fcd8e661f4833e8"`
[INFO] [stderr]    Compiling hot-ranking-algorithm v2.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "782888e1ce21ea918ccd26de62d934a1619c5c0f035f427c6fcd8e661f4833e8"`
[INFO] running `"docker" "rm" "-f" "782888e1ce21ea918ccd26de62d934a1619c5c0f035f427c6fcd8e661f4833e8"`
[INFO] [stdout] 782888e1ce21ea918ccd26de62d934a1619c5c0f035f427c6fcd8e661f4833e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/yoshuawuyts/hot-ranking-algorithm-rs:/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] c1dc02884a35aece6f94af7309fc477e8dc2f8995dbae547be3e4b0b021c4a8f
[INFO] running `"docker" "start" "-a" "c1dc02884a35aece6f94af7309fc477e8dc2f8995dbae547be3e4b0b021c4a8f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hot_ranking_algorithm-a7752718356a564c
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::twenty_upvotes_zero_downvotes ... ok
[INFO] [stdout] test tests::one_upvote_one_downvote ... ok
[INFO] [stdout] test tests::one_upvote_twenty_downvotes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hot-ranking-algorithm
[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" "c1dc02884a35aece6f94af7309fc477e8dc2f8995dbae547be3e4b0b021c4a8f"`
[INFO] running `"docker" "rm" "-f" "c1dc02884a35aece6f94af7309fc477e8dc2f8995dbae547be3e4b0b021c4a8f"`
[INFO] [stdout] c1dc02884a35aece6f94af7309fc477e8dc2f8995dbae547be3e4b0b021c4a8f