[INFO] updating cached repository petr-tik/dark_rusty_pool
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/petr-tik/dark_rusty_pool
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/petr-tik/dark_rusty_pool" "work/ex/beta-1.38-1/sources/1.37.0/gh/petr-tik/dark_rusty_pool"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/petr-tik/dark_rusty_pool'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/petr-tik/dark_rusty_pool" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/petr-tik/dark_rusty_pool"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/petr-tik/dark_rusty_pool'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6f95aff35e53009c0183591e9c4f6ce55bf0f60e
[INFO] sha for GitHub repo petr-tik/dark_rusty_pool: 6f95aff35e53009c0183591e9c4f6ce55bf0f60e
[INFO] validating manifest of petr-tik/dark_rusty_pool 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 petr-tik/dark_rusty_pool 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 petr-tik/dark_rusty_pool
[INFO] finished frobbing petr-tik/dark_rusty_pool
[INFO] frobbed toml for petr-tik/dark_rusty_pool written to work/ex/beta-1.38-1/sources/1.37.0/gh/petr-tik/dark_rusty_pool/Cargo.toml
[INFO] started frobbing petr-tik/dark_rusty_pool
[INFO] finished frobbing petr-tik/dark_rusty_pool
[INFO] frobbed toml for petr-tik/dark_rusty_pool written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/petr-tik/dark_rusty_pool/Cargo.toml
[INFO] crate petr-tik/dark_rusty_pool 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 petr-tik/dark_rusty_pool 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/petr-tik/dark_rusty_pool:/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] 3c24d6fbd7a2529cd5021b355869ff48de88b2ec2b5fa30662a89925320ea060
[INFO] running `"docker" "start" "-a" "3c24d6fbd7a2529cd5021b355869ff48de88b2ec2b5fa30662a89925320ea060"`
[INFO] [stderr]    Compiling order_book v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:250:13
[INFO] [stderr]     |
[INFO] [stderr] 250 |         let mut prev = reports.get_mut(&!ob.last_action_side).unwrap();
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `"docker" "inspect" "3c24d6fbd7a2529cd5021b355869ff48de88b2ec2b5fa30662a89925320ea060"`
[INFO] running `"docker" "rm" "-f" "3c24d6fbd7a2529cd5021b355869ff48de88b2ec2b5fa30662a89925320ea060"`
[INFO] [stdout] 3c24d6fbd7a2529cd5021b355869ff48de88b2ec2b5fa30662a89925320ea060
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/petr-tik/dark_rusty_pool:/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] 6262130e8449bea9e0122bbc45ac2c65b0235b31f3f5aad43890b46341b8b2b7
[INFO] running `"docker" "start" "-a" "6262130e8449bea9e0122bbc45ac2c65b0235b31f3f5aad43890b46341b8b2b7"`
[INFO] [stderr]    Compiling order_book v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:250:13
[INFO] [stderr]     |
[INFO] [stderr] 250 |         let mut prev = reports.get_mut(&!ob.last_action_side).unwrap();
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `"docker" "inspect" "6262130e8449bea9e0122bbc45ac2c65b0235b31f3f5aad43890b46341b8b2b7"`
[INFO] running `"docker" "rm" "-f" "6262130e8449bea9e0122bbc45ac2c65b0235b31f3f5aad43890b46341b8b2b7"`
[INFO] [stdout] 6262130e8449bea9e0122bbc45ac2c65b0235b31f3f5aad43890b46341b8b2b7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/petr-tik/dark_rusty_pool:/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] 5e6bfe8365f0726d5a24ae0ab2c53311bb3b9274dce850ec50951475d8d9d82e
[INFO] running `"docker" "start" "-a" "5e6bfe8365f0726d5a24ae0ab2c53311bb3b9274dce850ec50951475d8d9d82e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/order_book-cf3cd813eef4fd18
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test amount::tests::constructor_from_str_works ... ok
[INFO] [stdout] test amount::tests::convert_from_bidamount_to_amount ... ok
[INFO] [stdout] test amount::tests::convert_from_ref_bidamount_to_amount ... ok
[INFO] [stdout] test amount::tests::constructor_default_works ... ok
[INFO] [stdout] test amount::tests::add_two_amounts ... ok
[INFO] [stdout] test amount::tests::multiply_by_ten ... ok
[INFO] [stdout] test amount::tests::display_works ... ok
[INFO] [stdout] test amount::tests::multiply_by_zero ... ok
[INFO] [stdout] test bidamount::tests::add_two_amounts ... ok
[INFO] [stdout] test bidamount::tests::compare_equals ... ok
[INFO] [stdout] test bidamount::tests::bin_search_with_new_order ... ok
[INFO] [stdout] test bidamount::tests::compare_greater ... ok
[INFO] [stdout] test bidamount::tests::compare_less ... ok
[INFO] [stdout] test bidamount::tests::constructor_default_works ... ok
[INFO] [stdout] test bidamount::tests::constructor_from_str_works ... ok
[INFO] [stdout] test orders::tests::limit_order_constructor ... ok
[INFO] [stdout] test bidamount::tests::convert_from_amount_to_bidamount ... ok
[INFO] [stdout] test orders::tests::reduce_order_constructor ... ok
[INFO] [stdout] test bidamount::tests::multiply_by_ten ... ok
[INFO] [stdout] test bidamount::tests::display_works ... ok
[INFO] [stdout] test bidamount::tests::multiply_by_zero ... ok
[INFO] [stdout] test bidamount::tests::convert_from_ref_amount_to_bidamount ... ok
[INFO] [stdout] test tests::asks_vec_add ... ok
[INFO] [stdout] test tests::asks_vec_search_ok ... ok
[INFO] [stdout] test tests::asks_vec_search_err ... ok
[INFO] [stdout] test tests::orderbook_add_ask ... ok
[INFO] [stdout] test tests::prices_vec_len ... ok
[INFO] [stdout] test tests::orderbook_reduce_bid ... ok
[INFO] [stdout] test tests::orderbook_add_reduce_add ... ok
[INFO] [stdout] test tests::orderbook_reduce_ask ... ok
[INFO] [stdout] test tests::orderbook_add_bid ... ok
[INFO] [stdout] test tests::orderbook_constructor_works ... ok
[INFO] [stdout] test tests::run_through_basic ... ok
[INFO] [stdout] test tests::prices_vec_with_capacity ... ok
[INFO] [stdout] test amount::tests::bad_constructor_panics ... ok
[INFO] [stdout] test bidamount::tests::bad_constructor_panics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5e6bfe8365f0726d5a24ae0ab2c53311bb3b9274dce850ec50951475d8d9d82e"`
[INFO] running `"docker" "rm" "-f" "5e6bfe8365f0726d5a24ae0ab2c53311bb3b9274dce850ec50951475d8d9d82e"`
[INFO] [stdout] 5e6bfe8365f0726d5a24ae0ab2c53311bb3b9274dce850ec50951475d8d9d82e