[INFO] fetching crate yamakan 0.0.10...
[INFO] extracting crate yamakan 0.0.10 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/yamakan/0.0.10
[INFO] extracting crate yamakan 0.0.10 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/yamakan/0.0.10
[INFO] validating manifest of yamakan-0.0.10 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of yamakan-0.0.10 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing yamakan-0.0.10
[INFO] finished frobbing yamakan-0.0.10
[INFO] frobbed toml for yamakan-0.0.10 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/yamakan/0.0.10/Cargo.toml
[INFO] started frobbing yamakan-0.0.10
[INFO] finished frobbing yamakan-0.0.10
[INFO] frobbed toml for yamakan-0.0.10 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/yamakan/0.0.10/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded factory v0.1.2
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing yamakan-0.0.10 against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/yamakan/0.0.10:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 0aa5e7145009bfeccaf8f02ec272161b746156320545c2950fef84fdb53e3d40
[INFO] running `"docker" "start" "-a" "0aa5e7145009bfeccaf8f02ec272161b746156320545c2950fef84fdb53e3d40"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]    Compiling factory v0.1.2
[INFO] [stderr]    Compiling statrs v0.10.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]    Compiling trackable v0.2.22
[INFO] [stderr]    Compiling yamakan v0.0.10 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `rung.observations` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/optimizers/asha.rs:96:17
[INFO] [stderr]    |
[INFO] [stderr] 87 |               let worst = rung
[INFO] [stderr]    |  _________________________-
[INFO] [stderr] 88 | |                 .observations
[INFO] [stderr]    | |_____________________________- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 96 |                   rung.observations.insert(*id, entry);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^        --- immutable borrow later used here
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.62s
[INFO] running `"docker" "inspect" "0aa5e7145009bfeccaf8f02ec272161b746156320545c2950fef84fdb53e3d40"`
[INFO] running `"docker" "rm" "-f" "0aa5e7145009bfeccaf8f02ec272161b746156320545c2950fef84fdb53e3d40"`
[INFO] [stdout] 0aa5e7145009bfeccaf8f02ec272161b746156320545c2950fef84fdb53e3d40
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/yamakan/0.0.10:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 05164ef26445f49af969b619b8e20887e6cde9bb25fd71f5fc0073788425d455
[INFO] running `"docker" "start" "-a" "05164ef26445f49af969b619b8e20887e6cde9bb25fd71f5fc0073788425d455"`
[INFO] [stderr]    Compiling yamakan v0.0.10 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `rung.observations` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/optimizers/asha.rs:96:17
[INFO] [stderr]    |
[INFO] [stderr] 87 |               let worst = rung
[INFO] [stderr]    |  _________________________-
[INFO] [stderr] 88 | |                 .observations
[INFO] [stderr]    | |_____________________________- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 96 |                   rung.observations.insert(*id, entry);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^        --- immutable borrow later used here
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   mutable borrow occurs here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.79s
[INFO] running `"docker" "inspect" "05164ef26445f49af969b619b8e20887e6cde9bb25fd71f5fc0073788425d455"`
[INFO] running `"docker" "rm" "-f" "05164ef26445f49af969b619b8e20887e6cde9bb25fd71f5fc0073788425d455"`
[INFO] [stdout] 05164ef26445f49af969b619b8e20887e6cde9bb25fd71f5fc0073788425d455
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/yamakan/0.0.10:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] 0c4441902a86ec3921c8543100e288aa40d3a425bd899ac67d84df4c10d43c28
[INFO] running `"docker" "start" "-a" "0c4441902a86ec3921c8543100e288aa40d3a425bd899ac67d84df4c10d43c28"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/yamakan-e0b7b2f17e1f92ae
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test optimizers::random::tests::random_works ... ok
[INFO] [stdout] test optimizers::tpe::numerical::tests::tpe_numerical_works ... ok
[INFO] [stdout] test optimizers::tpe::categorical::tests::tpe_categorical_works ... 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 yamakan
[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" "0c4441902a86ec3921c8543100e288aa40d3a425bd899ac67d84df4c10d43c28"`
[INFO] running `"docker" "rm" "-f" "0c4441902a86ec3921c8543100e288aa40d3a425bd899ac67d84df4c10d43c28"`
[INFO] [stdout] 0c4441902a86ec3921c8543100e288aa40d3a425bd899ac67d84df4c10d43c28