[INFO] updating cached repository ColonelPhantom/fe_chess
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ColonelPhantom/fe_chess
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ColonelPhantom/fe_chess" "work/ex/beta-1.38-1/sources/1.37.0/gh/ColonelPhantom/fe_chess"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ColonelPhantom/fe_chess'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ColonelPhantom/fe_chess" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ColonelPhantom/fe_chess"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ColonelPhantom/fe_chess'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 420157fd09dd97662c1dd37de12c874c787fabce
[INFO] sha for GitHub repo ColonelPhantom/fe_chess: 420157fd09dd97662c1dd37de12c874c787fabce
[INFO] validating manifest of ColonelPhantom/fe_chess 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 ColonelPhantom/fe_chess 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 ColonelPhantom/fe_chess
[INFO] finished frobbing ColonelPhantom/fe_chess
[INFO] frobbed toml for ColonelPhantom/fe_chess written to work/ex/beta-1.38-1/sources/1.37.0/gh/ColonelPhantom/fe_chess/Cargo.toml
[INFO] started frobbing ColonelPhantom/fe_chess
[INFO] finished frobbing ColonelPhantom/fe_chess
[INFO] frobbed toml for ColonelPhantom/fe_chess written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ColonelPhantom/fe_chess/Cargo.toml
[INFO] crate ColonelPhantom/fe_chess 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 ColonelPhantom/fe_chess 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ColonelPhantom/fe_chess:/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] 6c9c441683a6ef1cb65046f8fb33244c06db81590590ec478ebc7179763ab4e4
[INFO] running `"docker" "start" "-a" "6c9c441683a6ef1cb65046f8fb33244c06db81590590ec478ebc7179763ab4e4"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling csv v1.0.7
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling shrust v0.0.6
[INFO] [stderr]    Compiling fe_chess v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `is_decided`
[INFO] [stderr]    --> src/search/mod.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn is_decided(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.47s
[INFO] running `"docker" "inspect" "6c9c441683a6ef1cb65046f8fb33244c06db81590590ec478ebc7179763ab4e4"`
[INFO] running `"docker" "rm" "-f" "6c9c441683a6ef1cb65046f8fb33244c06db81590590ec478ebc7179763ab4e4"`
[INFO] [stdout] 6c9c441683a6ef1cb65046f8fb33244c06db81590590ec478ebc7179763ab4e4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ColonelPhantom/fe_chess:/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] 6b884ca28e75fef974a5af7b3860dc9d307c9f07fd44cf8c400befdd7f9b178f
[INFO] running `"docker" "start" "-a" "6b884ca28e75fef974a5af7b3860dc9d307c9f07fd44cf8c400befdd7f9b178f"`
[INFO] [stderr]    Compiling fe_chess v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `is_decided`
[INFO] [stderr]    --> src/search/mod.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn is_decided(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "6b884ca28e75fef974a5af7b3860dc9d307c9f07fd44cf8c400befdd7f9b178f"`
[INFO] running `"docker" "rm" "-f" "6b884ca28e75fef974a5af7b3860dc9d307c9f07fd44cf8c400befdd7f9b178f"`
[INFO] [stdout] 6b884ca28e75fef974a5af7b3860dc9d307c9f07fd44cf8c400befdd7f9b178f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ColonelPhantom/fe_chess:/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] a3c7817c1febb170fc0cdfcc4e03c9ecff48745fb12c50835e63362f5f4a9875
[INFO] running `"docker" "start" "-a" "a3c7817c1febb170fc0cdfcc4e03c9ecff48745fb12c50835e63362f5f4a9875"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fe_chess-84af1addce37d394
[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" "a3c7817c1febb170fc0cdfcc4e03c9ecff48745fb12c50835e63362f5f4a9875"`
[INFO] running `"docker" "rm" "-f" "a3c7817c1febb170fc0cdfcc4e03c9ecff48745fb12c50835e63362f5f4a9875"`
[INFO] [stdout] a3c7817c1febb170fc0cdfcc4e03c9ecff48745fb12c50835e63362f5f4a9875