[INFO] crate chashmap 2.2.2 is already in cache
[INFO] extracting crate chashmap 2.2.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/chashmap/2.2.2
[INFO] extracting crate chashmap 2.2.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/chashmap/2.2.2
[INFO] validating manifest of chashmap-2.2.2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chashmap-2.2.2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chashmap-2.2.2
[INFO] finished frobbing chashmap-2.2.2
[INFO] frobbed toml for chashmap-2.2.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/chashmap/2.2.2/Cargo.toml
[INFO] started frobbing chashmap-2.2.2
[INFO] finished frobbing chashmap-2.2.2
[INFO] frobbed toml for chashmap-2.2.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/chashmap/2.2.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing chashmap-2.2.2 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/chashmap/2.2.2:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] d964a103a1224b9ca49213ef47cec5f7c3530ded384d1fe08c983c22eac4a62d
[INFO] running `"docker" "start" "-a" "d964a103a1224b9ca49213ef47cec5f7c3530ded384d1fe08c983c22eac4a62d"`
[INFO] [stderr]    Compiling chashmap v2.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:405:21
[INFO] [stderr]     |
[INFO] [stderr] 405 |                 let mut bucket = self.scan_mut_no_lock(&key, |x| match *x {
[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 0.49s
[INFO] running `"docker" "inspect" "d964a103a1224b9ca49213ef47cec5f7c3530ded384d1fe08c983c22eac4a62d"`
[INFO] running `"docker" "rm" "-f" "d964a103a1224b9ca49213ef47cec5f7c3530ded384d1fe08c983c22eac4a62d"`
[INFO] [stdout] d964a103a1224b9ca49213ef47cec5f7c3530ded384d1fe08c983c22eac4a62d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/chashmap/2.2.2:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2ed3f4a69ceb4f7faadd632c3e95b6a4b4b3c9555a321fb7e8fec15139f178b6
[INFO] running `"docker" "start" "-a" "2ed3f4a69ceb4f7faadd632c3e95b6a4b4b3c9555a321fb7e8fec15139f178b6"`
[INFO] [stderr]    Compiling chashmap v2.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:405:21
[INFO] [stderr]     |
[INFO] [stderr] 405 |                 let mut bucket = self.scan_mut_no_lock(&key, |x| match *x {
[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 2.77s
[INFO] running `"docker" "inspect" "2ed3f4a69ceb4f7faadd632c3e95b6a4b4b3c9555a321fb7e8fec15139f178b6"`
[INFO] running `"docker" "rm" "-f" "2ed3f4a69ceb4f7faadd632c3e95b6a4b4b3c9555a321fb7e8fec15139f178b6"`
[INFO] [stdout] 2ed3f4a69ceb4f7faadd632c3e95b6a4b4b3c9555a321fb7e8fec15139f178b6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/chashmap/2.2.2:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 4f1eb1dc947467f0faee4ad750836cc6a5703dc4f54b614a8b185b89ebbc06d0
[INFO] running `"docker" "start" "-a" "4f1eb1dc947467f0faee4ad750836cc6a5703dc4f54b614a8b185b89ebbc06d0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chashmap-3680e7e7f70f1e35
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test tests::empty_pop ... ok
[INFO] [stdout] test tests::conflict_remove ... ok
[INFO] [stdout] test tests::create_capacity_zero ... ok
[INFO] [stdout] test tests::clear_with_retain ... ok
[INFO] [stdout] test tests::clear ... ok
[INFO] [stdout] test tests::drops ... ok
[INFO] [stdout] test tests::alter_string ... ok
[INFO] [stdout] test tests::capacity_not_less_than_len ... ok
[INFO] [stdout] test tests::insert_overwrite ... ok
[INFO] [stdout] test tests::insert_into_map_full_of_free_buckets ... ok
[INFO] [stdout] test tests::is_empty ... ok
[INFO] [stdout] test tests::find_mut ... ok
[INFO] [stdout] test tests::find ... ok
[INFO] [stdout] test tests::from_iter ... ok
[INFO] [stdout] test tests::insert_conflicts ... ok
[INFO] [stdout] test tests::lock_compete ... ok
[INFO] [stdout] test tests::insert ... ok
[INFO] [stdout] test tests::reserve_shrink_to_fit ... ok
[INFO] [stdout] test tests::lookup_borrowed ... ok
[INFO] [stdout] test tests::retain ... ok
[INFO] [stdout] test tests::pop ... ok
[INFO] [stdout] test tests::move_iter_drops ... ok
[INFO] [stdout] test tests::upsert ... ok
[INFO] [stdout] test tests::upsert_update ... ok
[INFO] [stdout] test tests::simultanous_reserve ... ok
[INFO] [stdout] test tests::spam_alter ... ok
[INFO] [stdout] test tests::spam_upsert ... ok
[INFO] [stdout] test tests::spam_insert ... ok
[INFO] [stdout] test tests::spam_insert_new ... ok
[INFO] [stdout] test tests::lots_of_insertions ... ok
[INFO] [stderr]    Doc-tests chashmap
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "4f1eb1dc947467f0faee4ad750836cc6a5703dc4f54b614a8b185b89ebbc06d0"`
[INFO] running `"docker" "rm" "-f" "4f1eb1dc947467f0faee4ad750836cc6a5703dc4f54b614a8b185b89ebbc06d0"`
[INFO] [stdout] 4f1eb1dc947467f0faee4ad750836cc6a5703dc4f54b614a8b185b89ebbc06d0