Dec 18 04:52:25.561 INFO checking WenjunHuang/SledMultiThreadTest against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 04:52:25.561 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/WenjunHuang/SledMultiThreadTest:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 04:52:26.036 INFO [stdout] 38c639a18589c112c652a0b102d839a5343f8818dba608f0261e723bcfcacc85
Dec 18 04:52:26.044 INFO running `"docker" "start" "-a" "38c639a18589c112c652a0b102d839a5343f8818dba608f0261e723bcfcacc85"`
Dec 18 04:52:27.600 INFO [stderr]     Checking crossbeam-utils v0.5.0
Dec 18 04:52:27.608 INFO [stderr]     Checking coco v0.2.1
Dec 18 04:52:27.608 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Dec 18 04:52:28.318 INFO [stderr]     Checking crossbeam-epoch v0.6.0
Dec 18 04:52:28.936 INFO [stderr]     Checking historian v3.0.4
Dec 18 04:52:29.036 INFO [stderr]     Checking crossbeam-deque v0.2.0
Dec 18 04:52:29.280 INFO [stderr]     Checking pagetable v0.1.0
Dec 18 04:52:30.148 INFO [stderr]     Checking rayon-core v1.4.1
Dec 18 04:52:30.996 INFO [stderr]     Checking rayon v1.0.3
Dec 18 04:52:34.796 INFO [stderr]     Checking pagecache v0.7.2
Dec 18 04:52:39.048 INFO [stderr]     Checking sled v0.16.2
Dec 18 04:52:42.381 INFO [stderr]     Checking SledMultithreadTest v0.1.0 (/opt/crater/workdir)
Dec 18 04:52:44.048 INFO [stderr] warning: unused import: `SubCommand`
Dec 18 04:52:44.048 INFO [stderr]  --> src/main.rs:4:22
Dec 18 04:52:44.048 INFO [stderr]   |
Dec 18 04:52:44.048 INFO [stderr] 4 | use clap::{App, Arg, SubCommand};
Dec 18 04:52:44.048 INFO [stderr]   |                      ^^^^^^^^^^
Dec 18 04:52:44.048 INFO [stderr]   |
Dec 18 04:52:44.048 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 04:52:44.048 INFO [stderr] 
Dec 18 04:52:44.084 INFO [stderr] warning: unused import: `SubCommand`
Dec 18 04:52:44.084 INFO [stderr]  --> src/main.rs:4:22
Dec 18 04:52:44.084 INFO [stderr]   |
Dec 18 04:52:44.084 INFO [stderr] 4 | use clap::{App, Arg, SubCommand};
Dec 18 04:52:44.084 INFO [stderr]   |                      ^^^^^^^^^^
Dec 18 04:52:44.084 INFO [stderr]   |
Dec 18 04:52:44.084 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 04:52:44.084 INFO [stderr] 
Dec 18 04:52:44.196 INFO [stderr] warning: unused variable: `prefix`
Dec 18 04:52:44.196 INFO [stderr]   --> src/main.rs:62:31
Dec 18 04:52:44.196 INFO [stderr]    |
Dec 18 04:52:44.196 INFO [stderr] 62 | fn check_write(db: Arc<Tree>, prefix: i32) {
Dec 18 04:52:44.196 INFO [stderr]    |                               ^^^^^^ help: consider using `_prefix` instead
Dec 18 04:52:44.196 INFO [stderr]    |
Dec 18 04:52:44.196 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 04:52:44.196 INFO [stderr] 
Dec 18 04:52:44.196 INFO [stderr] warning: unused variable: `prefix`
Dec 18 04:52:44.196 INFO [stderr]   --> src/main.rs:89:30
Dec 18 04:52:44.196 INFO [stderr]    |
Dec 18 04:52:44.196 INFO [stderr] 89 | fn check_read(db: Arc<Tree>, prefix: i32) {
Dec 18 04:52:44.196 INFO [stderr]    |                              ^^^^^^ help: consider using `_prefix` instead
Dec 18 04:52:44.196 INFO [stderr] 
Dec 18 04:52:44.252 INFO [stderr] warning: crate `SledMultithreadTest` should have a snake case name such as `sled_multithread_test`
Dec 18 04:52:44.252 INFO [stderr]   |
Dec 18 04:52:44.252 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 04:52:44.252 INFO [stderr] 
Dec 18 04:52:44.291 INFO [stderr] warning: unused variable: `prefix`
Dec 18 04:52:44.291 INFO [stderr]   --> src/main.rs:62:31
Dec 18 04:52:44.291 INFO [stderr]    |
Dec 18 04:52:44.291 INFO [stderr] 62 | fn check_write(db: Arc<Tree>, prefix: i32) {
Dec 18 04:52:44.291 INFO [stderr]    |                               ^^^^^^ help: consider using `_prefix` instead
Dec 18 04:52:44.291 INFO [stderr]    |
Dec 18 04:52:44.291 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 04:52:44.291 INFO [stderr] 
Dec 18 04:52:44.291 INFO [stderr] warning: unused variable: `prefix`
Dec 18 04:52:44.291 INFO [stderr]   --> src/main.rs:89:30
Dec 18 04:52:44.291 INFO [stderr]    |
Dec 18 04:52:44.291 INFO [stderr] 89 | fn check_read(db: Arc<Tree>, prefix: i32) {
Dec 18 04:52:44.291 INFO [stderr]    |                              ^^^^^^ help: consider using `_prefix` instead
Dec 18 04:52:44.293 INFO [stderr] 
Dec 18 04:52:44.360 INFO [stderr] warning: crate `SledMultithreadTest` should have a snake case name such as `sled_multithread_test`
Dec 18 04:52:44.360 INFO [stderr]   |
Dec 18 04:52:44.360 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 04:52:44.360 INFO [stderr] 
Dec 18 04:52:44.403 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.97s
Dec 18 04:52:45.516 INFO running `"docker" "inspect" "38c639a18589c112c652a0b102d839a5343f8818dba608f0261e723bcfcacc85"`
Dec 18 04:52:45.855 INFO running `"docker" "rm" "-f" "38c639a18589c112c652a0b102d839a5343f8818dba608f0261e723bcfcacc85"`
Dec 18 04:52:46.192 INFO [stdout] 38c639a18589c112c652a0b102d839a5343f8818dba608f0261e723bcfcacc85