[INFO] updating cached repository mxinden/kvs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mxinden/kvs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mxinden/kvs" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/mxinden/kvs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/mxinden/kvs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mxinden/kvs" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/mxinden/kvs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/mxinden/kvs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8f860c1f594602c37a0882aaf02512d723513a94
[INFO] sha for GitHub repo mxinden/kvs: 8f860c1f594602c37a0882aaf02512d723513a94
[INFO] validating manifest of mxinden/kvs on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mxinden/kvs on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mxinden/kvs
[INFO] finished frobbing mxinden/kvs
[INFO] frobbed toml for mxinden/kvs written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/mxinden/kvs/Cargo.toml
[INFO] started frobbing mxinden/kvs
[INFO] finished frobbing mxinden/kvs
[INFO] frobbed toml for mxinden/kvs written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/mxinden/kvs/Cargo.toml
[INFO] crate mxinden/kvs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mxinden/kvs against try#75eff020d0923c035c2fe220db4a0465cd847048 for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-7/try#75eff020d0923c035c2fe220db4a0465cd847048:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/mxinden/kvs:/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" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3f1b91e4c5de248ef2c2b4aa720687b582b53fe203defe956fed7ce3ba682831
[INFO] running `"docker" "start" "-a" "3f1b91e4c5de248ef2c2b4aa720687b582b53fe203defe956fed7ce3ba682831"`
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]     Checking historian v4.0.3
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking regex-automata v0.1.7
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking backtrace v0.3.33
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking regex v1.1.9
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serde v1.0.97
[INFO] [stderr]     Checking hashbrown v0.3.1
[INFO] [stderr]     Checking bstr v0.2.2
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking serde_bytes v0.11.1
[INFO] [stderr]     Checking pagecache v0.17.0
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking escargot v0.4.0
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Checking sled v0.24.1
[INFO] [stderr]     Checking kvs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/kvs-server.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |     db: Box<kvs::KvsEngine>,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: use `dyn`: `dyn kvs::KvsEngine`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/kvs-server.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |     db: Box<kvs::KvsEngine>,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: use `dyn`: `dyn kvs::KvsEngine`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `KvStore`, `Result`
[INFO] [stderr]  --> benches/store.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | use kvs::{KvStore, KvsEngine, Result};
[INFO] [stderr]   |           ^^^^^^^             ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `criterion::black_box`
[INFO] [stderr]  --> benches/store.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use criterion::black_box;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `KvsEngine`
[INFO] [stderr]  --> tests/kv_store.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use kvs::{KvStore, KvsEngine, Result};
[INFO] [stderr]   |                    ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `"docker" "inspect" "3f1b91e4c5de248ef2c2b4aa720687b582b53fe203defe956fed7ce3ba682831"`
[INFO] running `"docker" "rm" "-f" "3f1b91e4c5de248ef2c2b4aa720687b582b53fe203defe956fed7ce3ba682831"`
[INFO] [stdout] 3f1b91e4c5de248ef2c2b4aa720687b582b53fe203defe956fed7ce3ba682831