Nov 28 10:26:08.387 INFO checking WenjunHuang/SledMultiThreadTest against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 10:26:08.387 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 10:26:08.905 INFO [stdout] 1a6ab4ddc78faa8a057d3db4e273aa94c888c976eb5c842fe07a76b61ea02cd6
Nov 28 10:26:08.907 INFO running `"docker" "start" "-a" "1a6ab4ddc78faa8a057d3db4e273aa94c888c976eb5c842fe07a76b61ea02cd6"`
Nov 28 10:26:11.174 INFO [stderr] usermod: no changes
Nov 28 10:26:11.414 INFO [stderr]     Checking crossbeam-utils v0.5.0
Nov 28 10:26:11.428 INFO [stderr]     Checking coco v0.2.1
Nov 28 10:26:11.448 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Nov 28 10:26:12.808 INFO [stderr]     Checking crossbeam-epoch v0.6.0
Nov 28 10:26:12.925 INFO [stderr]     Checking crossbeam-deque v0.2.0
Nov 28 10:26:13.264 INFO [stderr]     Checking historian v3.0.4
Nov 28 10:26:14.572 INFO [stderr]     Checking pagetable v0.1.0
Nov 28 10:26:15.388 INFO [stderr]     Checking rayon-core v1.4.1
Nov 28 10:26:16.805 INFO [stderr]     Checking rayon v1.0.3
Nov 28 10:26:21.821 INFO [stderr]     Checking pagecache v0.7.2
Nov 28 10:26:26.660 INFO [stderr]     Checking sled v0.16.2
Nov 28 10:26:30.990 INFO [stderr]     Checking SledMultithreadTest v0.1.0 (/source)
Nov 28 10:26:33.489 INFO [stderr] warning: unused import: `SubCommand`
Nov 28 10:26:33.489 INFO [stderr]  --> src/main.rs:4:22
Nov 28 10:26:33.489 INFO [stderr]   |
Nov 28 10:26:33.489 INFO [stderr] 4 | use clap::{App, Arg, SubCommand};
Nov 28 10:26:33.489 INFO [stderr]   |                      ^^^^^^^^^^
Nov 28 10:26:33.489 INFO [stderr]   |
Nov 28 10:26:33.489 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 10:26:33.489 INFO [stderr] 
Nov 28 10:26:33.489 INFO [stderr] warning: unused import: `SubCommand`
Nov 28 10:26:33.489 INFO [stderr]  --> src/main.rs:4:22
Nov 28 10:26:33.489 INFO [stderr]   |
Nov 28 10:26:33.489 INFO [stderr] 4 | use clap::{App, Arg, SubCommand};
Nov 28 10:26:33.489 INFO [stderr]   |                      ^^^^^^^^^^
Nov 28 10:26:33.489 INFO [stderr]   |
Nov 28 10:26:33.489 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 10:26:33.489 INFO [stderr] 
Nov 28 10:26:33.591 INFO [stderr] warning: unused variable: `prefix`
Nov 28 10:26:33.591 INFO [stderr]   --> src/main.rs:62:31
Nov 28 10:26:33.591 INFO [stderr]    |
Nov 28 10:26:33.591 INFO [stderr] 62 | fn check_write(db: Arc<Tree>, prefix: i32) {
Nov 28 10:26:33.591 INFO [stderr]    |                               ^^^^^^ help: consider using `_prefix` instead
Nov 28 10:26:33.591 INFO [stderr]    |
Nov 28 10:26:33.591 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 10:26:33.591 INFO [stderr] 
Nov 28 10:26:33.591 INFO [stderr] warning: unused variable: `prefix`
Nov 28 10:26:33.591 INFO [stderr]   --> src/main.rs:89:30
Nov 28 10:26:33.591 INFO [stderr]    |
Nov 28 10:26:33.591 INFO [stderr] 89 | fn check_read(db: Arc<Tree>, prefix: i32) {
Nov 28 10:26:33.591 INFO [stderr]    |                              ^^^^^^ help: consider using `_prefix` instead
Nov 28 10:26:33.591 INFO [stderr] 
Nov 28 10:26:33.600 INFO [stderr] warning: unused variable: `prefix`
Nov 28 10:26:33.600 INFO [stderr]   --> src/main.rs:62:31
Nov 28 10:26:33.600 INFO [stderr]    |
Nov 28 10:26:33.600 INFO [stderr] 62 | fn check_write(db: Arc<Tree>, prefix: i32) {
Nov 28 10:26:33.600 INFO [stderr]    |                               ^^^^^^ help: consider using `_prefix` instead
Nov 28 10:26:33.600 INFO [stderr]    |
Nov 28 10:26:33.600 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 10:26:33.600 INFO [stderr] 
Nov 28 10:26:33.600 INFO [stderr] warning: unused variable: `prefix`
Nov 28 10:26:33.600 INFO [stderr]   --> src/main.rs:89:30
Nov 28 10:26:33.600 INFO [stderr]    |
Nov 28 10:26:33.600 INFO [stderr] 89 | fn check_read(db: Arc<Tree>, prefix: i32) {
Nov 28 10:26:33.600 INFO [stderr]    |                              ^^^^^^ help: consider using `_prefix` instead
Nov 28 10:26:33.600 INFO [stderr] 
Nov 28 10:26:33.623 INFO [stderr] warning: crate `SledMultithreadTest` should have a snake case name such as `sled_multithread_test`
Nov 28 10:26:33.623 INFO [stderr]   |
Nov 28 10:26:33.623 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 28 10:26:33.623 INFO [stderr] 
Nov 28 10:26:33.644 INFO [stderr] warning: crate `SledMultithreadTest` should have a snake case name such as `sled_multithread_test`
Nov 28 10:26:33.645 INFO [stderr]   |
Nov 28 10:26:33.645 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 28 10:26:33.645 INFO [stderr] 
Nov 28 10:26:33.680 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.48s
Nov 28 10:26:33.693 INFO [stderr] su: No module specific data is present
Nov 28 10:26:34.300 INFO running `"docker" "inspect" "1a6ab4ddc78faa8a057d3db4e273aa94c888c976eb5c842fe07a76b61ea02cd6"`
Nov 28 10:26:34.456 INFO running `"docker" "rm" "-f" "1a6ab4ddc78faa8a057d3db4e273aa94c888c976eb5c842fe07a76b61ea02cd6"`
Nov 28 10:26:34.605 INFO [stdout] 1a6ab4ddc78faa8a057d3db4e273aa94c888c976eb5c842fe07a76b61ea02cd6