[INFO] updating cached repository sergeikononov/MethodOfDichotomy
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sergeikononov/MethodOfDichotomy
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sergeikononov/MethodOfDichotomy" "work/ex/beta-1.38-1/sources/1.37.0/gh/sergeikononov/MethodOfDichotomy"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sergeikononov/MethodOfDichotomy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sergeikononov/MethodOfDichotomy" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sergeikononov/MethodOfDichotomy"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sergeikononov/MethodOfDichotomy'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7de0e1fc5bd63a452298f89523f082e7ce3d7fe3
[INFO] sha for GitHub repo sergeikononov/MethodOfDichotomy: 7de0e1fc5bd63a452298f89523f082e7ce3d7fe3
[INFO] validating manifest of sergeikononov/MethodOfDichotomy 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 sergeikononov/MethodOfDichotomy 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 sergeikononov/MethodOfDichotomy
[INFO] finished frobbing sergeikononov/MethodOfDichotomy
[INFO] frobbed toml for sergeikononov/MethodOfDichotomy written to work/ex/beta-1.38-1/sources/1.37.0/gh/sergeikononov/MethodOfDichotomy/Cargo.toml
[INFO] started frobbing sergeikononov/MethodOfDichotomy
[INFO] finished frobbing sergeikononov/MethodOfDichotomy
[INFO] frobbed toml for sergeikononov/MethodOfDichotomy written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sergeikononov/MethodOfDichotomy/Cargo.toml
[INFO] crate sergeikononov/MethodOfDichotomy 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 sergeikononov/MethodOfDichotomy 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-5/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/sergeikononov/MethodOfDichotomy:/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] 268737cf9d30f556d71592c89135f3cdc16e43c72f50a86b20d61e18d39b44d5
[INFO] running `"docker" "start" "-a" "268737cf9d30f556d71592c89135f3cdc16e43c72f50a86b20d61e18d39b44d5"`
[INFO] [stderr]    Compiling untitled v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `eps`
[INFO] [stderr]  --> src/main.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let eps:f32 = 2.71;
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_eps`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "268737cf9d30f556d71592c89135f3cdc16e43c72f50a86b20d61e18d39b44d5"`
[INFO] running `"docker" "rm" "-f" "268737cf9d30f556d71592c89135f3cdc16e43c72f50a86b20d61e18d39b44d5"`
[INFO] [stdout] 268737cf9d30f556d71592c89135f3cdc16e43c72f50a86b20d61e18d39b44d5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/sergeikononov/MethodOfDichotomy:/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] 0cca4a077a23e4acfea0d1e08602c0ac0bcafef1c4ab756d2d5e90b0552b8abb
[INFO] running `"docker" "start" "-a" "0cca4a077a23e4acfea0d1e08602c0ac0bcafef1c4ab756d2d5e90b0552b8abb"`
[INFO] [stderr]    Compiling untitled v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `eps`
[INFO] [stderr]  --> src/main.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let eps:f32 = 2.71;
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_eps`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "0cca4a077a23e4acfea0d1e08602c0ac0bcafef1c4ab756d2d5e90b0552b8abb"`
[INFO] running `"docker" "rm" "-f" "0cca4a077a23e4acfea0d1e08602c0ac0bcafef1c4ab756d2d5e90b0552b8abb"`
[INFO] [stdout] 0cca4a077a23e4acfea0d1e08602c0ac0bcafef1c4ab756d2d5e90b0552b8abb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/sergeikononov/MethodOfDichotomy:/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] dbfb8974a11af5504a0d680128980be8f0ddac7baf970666def09ee060685507
[INFO] running `"docker" "start" "-a" "dbfb8974a11af5504a0d680128980be8f0ddac7baf970666def09ee060685507"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/untitled-c32ec401c47def8e
[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" "dbfb8974a11af5504a0d680128980be8f0ddac7baf970666def09ee060685507"`
[INFO] running `"docker" "rm" "-f" "dbfb8974a11af5504a0d680128980be8f0ddac7baf970666def09ee060685507"`
[INFO] [stdout] dbfb8974a11af5504a0d680128980be8f0ddac7baf970666def09ee060685507