Nov 27 19:59:43.732 INFO checking souvik1997/fsbench against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 19:59:43.733 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 27 19:59:44.243 INFO [stdout] 2a983684372cff1cb99a69ec4f035cb82dd4afb8da67f2a74bea31489bcd1067
Nov 27 19:59:44.245 INFO running `"docker" "start" "-a" "2a983684372cff1cb99a69ec4f035cb82dd4afb8da67f2a74bea31489bcd1067"`
Nov 27 19:59:46.508 INFO [stderr] usermod: no changes
Nov 27 19:59:46.772 INFO [stderr]     Checking serde v1.0.29
Nov 27 19:59:46.772 INFO [stderr]     Checking log v0.4.1
Nov 27 19:59:46.773 INFO [stderr]     Checking num-bigint v0.1.43
Nov 27 19:59:46.773 INFO [stderr]     Checking nix v0.10.0
Nov 27 19:59:46.774 INFO [stderr]    Compiling serde_derive_internals v0.20.0
Nov 27 19:59:46.782 INFO [stderr]    Compiling num-derive v0.2.0
Nov 27 19:59:46.782 INFO [stderr]     Checking rayon v1.0.0
Nov 27 19:59:46.782 INFO [stderr]     Checking tempdir v0.3.6
Nov 27 19:59:49.173 INFO [stderr]     Checking fern v0.5.2
Nov 27 19:59:59.642 INFO [stderr]     Checking num-rational v0.1.42
Nov 27 20:00:01.038 INFO [stderr]    Compiling serde_derive v1.0.29
Nov 27 20:00:03.047 INFO [stderr]     Checking num v0.1.42
Nov 27 20:00:04.084 INFO [stderr]     Checking chrono v0.4.0
Nov 27 20:00:24.591 INFO [stderr]     Checking serde_json v1.0.11
Nov 27 20:00:26.812 INFO [stderr]     Checking fsbench v0.1.0 (/source)
Nov 27 20:00:28.560 INFO [stderr] warning: unused import: `std::process::Command`
Nov 27 20:00:28.561 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:173:13
Nov 27 20:00:28.562 INFO [stderr]     |
Nov 27 20:00:28.563 INFO [stderr] 173 |         use std::process::Command;
Nov 27 20:00:28.563 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:28.564 INFO [stderr]     |
Nov 27 20:00:28.565 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 27 20:00:28.565 INFO [stderr] 
Nov 27 20:00:28.845 INFO [stderr] warning: unused import: `std::process::Command`
Nov 27 20:00:28.846 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:173:13
Nov 27 20:00:28.847 INFO [stderr]     |
Nov 27 20:00:28.847 INFO [stderr] 173 |         use std::process::Command;
Nov 27 20:00:28.848 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:28.848 INFO [stderr]     |
Nov 27 20:00:28.849 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 27 20:00:28.849 INFO [stderr] 
Nov 27 20:00:30.224 INFO [stderr] warning: unused variable: `split_string`
Nov 27 20:00:30.224 INFO [stderr]   --> src/fsbench/operation.rs:28:9
Nov 27 20:00:30.224 INFO [stderr]    |
Nov 27 20:00:30.224 INFO [stderr] 28 |     let split_string = vec![String::new()];
Nov 27 20:00:30.224 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_split_string` instead
Nov 27 20:00:30.224 INFO [stderr]    |
Nov 27 20:00:30.224 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 20:00:30.224 INFO [stderr] 
Nov 27 20:00:30.232 INFO [stderr] warning: variable `bytes` is assigned to, but never used
Nov 27 20:00:30.232 INFO [stderr]    --> src/fsbench/operation.rs:304:17
Nov 27 20:00:30.232 INFO [stderr]     |
Nov 27 20:00:30.232 INFO [stderr] 304 |         let mut bytes = 0;
Nov 27 20:00:30.232 INFO [stderr]     |                 ^^^^^
Nov 27 20:00:30.232 INFO [stderr]     |
Nov 27 20:00:30.232 INFO [stderr]     = note: consider using `_bytes` instead
Nov 27 20:00:30.232 INFO [stderr] 
Nov 27 20:00:30.348 INFO [stderr] warning: unused variable: `split_string`
Nov 27 20:00:30.348 INFO [stderr]   --> src/fsbench/operation.rs:28:9
Nov 27 20:00:30.348 INFO [stderr]    |
Nov 27 20:00:30.348 INFO [stderr] 28 |     let split_string = vec![String::new()];
Nov 27 20:00:30.348 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_split_string` instead
Nov 27 20:00:30.348 INFO [stderr]    |
Nov 27 20:00:30.348 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 20:00:30.348 INFO [stderr] 
Nov 27 20:00:30.356 INFO [stderr] warning: variable `bytes` is assigned to, but never used
Nov 27 20:00:30.356 INFO [stderr]    --> src/fsbench/operation.rs:304:17
Nov 27 20:00:30.356 INFO [stderr]     |
Nov 27 20:00:30.356 INFO [stderr] 304 |         let mut bytes = 0;
Nov 27 20:00:30.356 INFO [stderr]     |                 ^^^^^
Nov 27 20:00:30.356 INFO [stderr]     |
Nov 27 20:00:30.356 INFO [stderr]     = note: consider using `_bytes` instead
Nov 27 20:00:30.356 INFO [stderr] 
Nov 27 20:00:30.628 INFO [stderr] warning: constant item is never used: `SECTOR_SIZE`
Nov 27 20:00:30.628 INFO [stderr]  --> src/fsbench/blktrace/trace.rs:9:1
Nov 27 20:00:30.628 INFO [stderr]   |
Nov 27 20:00:30.628 INFO [stderr] 9 | pub const SECTOR_SIZE: usize = 512;
Nov 27 20:00:30.628 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:30.628 INFO [stderr]   |
Nov 27 20:00:30.630 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 20:00:30.630 INFO [stderr] 
Nov 27 20:00:30.630 INFO [stderr] warning: field is never used: `elapsed`
Nov 27 20:00:30.630 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:147:5
Nov 27 20:00:30.630 INFO [stderr]     |
Nov 27 20:00:30.630 INFO [stderr] 147 |     elapsed: Duration,
Nov 27 20:00:30.630 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^
Nov 27 20:00:30.630 INFO [stderr] 
Nov 27 20:00:30.630 INFO [stderr] warning: method is never used: `total_duration`
Nov 27 20:00:30.630 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:243:5
Nov 27 20:00:30.630 INFO [stderr]     |
Nov 27 20:00:30.630 INFO [stderr] 243 |     pub fn total_duration(&self) -> Duration {
Nov 27 20:00:30.630 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:30.630 INFO [stderr] 
Nov 27 20:00:30.630 INFO [stderr] warning: struct is never constructed: `Read`
Nov 27 20:00:30.630 INFO [stderr]    --> src/fsbench/operation.rs:160:1
Nov 27 20:00:30.630 INFO [stderr]     |
Nov 27 20:00:30.630 INFO [stderr] 160 | pub struct Read {
Nov 27 20:00:30.630 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 27 20:00:30.630 INFO [stderr] 
Nov 27 20:00:30.630 INFO [stderr] warning: method is never used: `new`
Nov 27 20:00:30.630 INFO [stderr]    --> src/fsbench/operation.rs:165:5
Nov 27 20:00:30.630 INFO [stderr]     |
Nov 27 20:00:30.630 INFO [stderr] 165 |     pub fn new() -> Read {
Nov 27 20:00:30.630 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:30.630 INFO [stderr] 
Nov 27 20:00:30.630 INFO [stderr] warning: method is never used: `run`
Nov 27 20:00:30.630 INFO [stderr]    --> src/fsbench/operation.rs:171:5
Nov 27 20:00:30.630 INFO [stderr]     |
Nov 27 20:00:30.630 INFO [stderr] 171 |     pub fn run(&mut self, fd: RawFd, buf: &mut [u8]) -> nix::Result<usize> {
Nov 27 20:00:30.630 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:30.630 INFO [stderr] 
Nov 27 20:00:30.630 INFO [stderr] warning: struct is never constructed: `Write`
Nov 27 20:00:30.630 INFO [stderr]    --> src/fsbench/operation.rs:192:1
Nov 27 20:00:30.630 INFO [stderr]     |
Nov 27 20:00:30.630 INFO [stderr] 192 | pub struct Write {
Nov 27 20:00:30.630 INFO [stderr]     | ^^^^^^^^^^^^^^^^
Nov 27 20:00:30.630 INFO [stderr] 
Nov 27 20:00:30.630 INFO [stderr] warning: method is never used: `new`
Nov 27 20:00:30.630 INFO [stderr]    --> src/fsbench/operation.rs:197:5
Nov 27 20:00:30.630 INFO [stderr]     |
Nov 27 20:00:30.630 INFO [stderr] 197 |     pub fn new() -> Write {
Nov 27 20:00:30.630 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:30.637 INFO [stderr] 
Nov 27 20:00:30.637 INFO [stderr] warning: method is never used: `run`
Nov 27 20:00:30.637 INFO [stderr]    --> src/fsbench/operation.rs:203:5
Nov 27 20:00:30.637 INFO [stderr]     |
Nov 27 20:00:30.637 INFO [stderr] 203 |     pub fn run(&mut self, fd: RawFd, buf: &[u8]) -> nix::Result<usize> {
Nov 27 20:00:30.637 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:30.637 INFO [stderr] 
Nov 27 20:00:30.637 INFO [stderr] warning: method is never used: `ops_per_second`
Nov 27 20:00:30.637 INFO [stderr]   --> src/fsbench/statistics.rs:42:5
Nov 27 20:00:30.637 INFO [stderr]    |
Nov 27 20:00:30.637 INFO [stderr] 42 |     pub fn ops_per_second(&self) -> f64 {
Nov 27 20:00:30.637 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:30.637 INFO [stderr] 
Nov 27 20:00:30.637 INFO [stderr] warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable
Nov 27 20:00:30.637 INFO [stderr]  --> src/main.rs:1:12
Nov 27 20:00:30.637 INFO [stderr]   |
Nov 27 20:00:30.637 INFO [stderr] 1 | #![feature(duration_extras)]
Nov 27 20:00:30.637 INFO [stderr]   |            ^^^^^^^^^^^^^^^
Nov 27 20:00:30.637 INFO [stderr]   |
Nov 27 20:00:30.637 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 27 20:00:30.637 INFO [stderr] 
Nov 27 20:00:31.065 INFO [stderr] warning: constant item is never used: `SECTOR_SIZE`
Nov 27 20:00:31.065 INFO [stderr]  --> src/fsbench/blktrace/trace.rs:9:1
Nov 27 20:00:31.065 INFO [stderr]   |
Nov 27 20:00:31.065 INFO [stderr] 9 | pub const SECTOR_SIZE: usize = 512;
Nov 27 20:00:31.065 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:31.065 INFO [stderr]   |
Nov 27 20:00:31.065 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 20:00:31.065 INFO [stderr] 
Nov 27 20:00:31.065 INFO [stderr] warning: field is never used: `elapsed`
Nov 27 20:00:31.065 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:147:5
Nov 27 20:00:31.065 INFO [stderr]     |
Nov 27 20:00:31.065 INFO [stderr] 147 |     elapsed: Duration,
Nov 27 20:00:31.065 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^
Nov 27 20:00:31.065 INFO [stderr] 
Nov 27 20:00:31.065 INFO [stderr] warning: method is never used: `total_duration`
Nov 27 20:00:31.065 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:243:5
Nov 27 20:00:31.065 INFO [stderr]     |
Nov 27 20:00:31.065 INFO [stderr] 243 |     pub fn total_duration(&self) -> Duration {
Nov 27 20:00:31.065 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:31.065 INFO [stderr] 
Nov 27 20:00:31.065 INFO [stderr] warning: struct is never constructed: `Read`
Nov 27 20:00:31.066 INFO [stderr]    --> src/fsbench/operation.rs:160:1
Nov 27 20:00:31.066 INFO [stderr]     |
Nov 27 20:00:31.066 INFO [stderr] 160 | pub struct Read {
Nov 27 20:00:31.066 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 27 20:00:31.066 INFO [stderr] 
Nov 27 20:00:31.066 INFO [stderr] warning: method is never used: `new`
Nov 27 20:00:31.066 INFO [stderr]    --> src/fsbench/operation.rs:165:5
Nov 27 20:00:31.066 INFO [stderr]     |
Nov 27 20:00:31.066 INFO [stderr] 165 |     pub fn new() -> Read {
Nov 27 20:00:31.066 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:31.066 INFO [stderr] 
Nov 27 20:00:31.066 INFO [stderr] warning: method is never used: `run`
Nov 27 20:00:31.066 INFO [stderr]    --> src/fsbench/operation.rs:171:5
Nov 27 20:00:31.066 INFO [stderr]     |
Nov 27 20:00:31.066 INFO [stderr] 171 |     pub fn run(&mut self, fd: RawFd, buf: &mut [u8]) -> nix::Result<usize> {
Nov 27 20:00:31.066 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:31.066 INFO [stderr] 
Nov 27 20:00:31.066 INFO [stderr] warning: struct is never constructed: `Write`
Nov 27 20:00:31.066 INFO [stderr]    --> src/fsbench/operation.rs:192:1
Nov 27 20:00:31.066 INFO [stderr]     |
Nov 27 20:00:31.066 INFO [stderr] 192 | pub struct Write {
Nov 27 20:00:31.066 INFO [stderr]     | ^^^^^^^^^^^^^^^^
Nov 27 20:00:31.066 INFO [stderr] 
Nov 27 20:00:31.066 INFO [stderr] warning: method is never used: `new`
Nov 27 20:00:31.066 INFO [stderr]    --> src/fsbench/operation.rs:197:5
Nov 27 20:00:31.066 INFO [stderr]     |
Nov 27 20:00:31.066 INFO [stderr] 197 |     pub fn new() -> Write {
Nov 27 20:00:31.066 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:31.066 INFO [stderr] 
Nov 27 20:00:31.066 INFO [stderr] warning: method is never used: `run`
Nov 27 20:00:31.066 INFO [stderr]    --> src/fsbench/operation.rs:203:5
Nov 27 20:00:31.066 INFO [stderr]     |
Nov 27 20:00:31.066 INFO [stderr] 203 |     pub fn run(&mut self, fd: RawFd, buf: &[u8]) -> nix::Result<usize> {
Nov 27 20:00:31.066 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:31.066 INFO [stderr] 
Nov 27 20:00:31.066 INFO [stderr] warning: method is never used: `ops_per_second`
Nov 27 20:00:31.066 INFO [stderr]   --> src/fsbench/statistics.rs:42:5
Nov 27 20:00:31.066 INFO [stderr]    |
Nov 27 20:00:31.066 INFO [stderr] 42 |     pub fn ops_per_second(&self) -> f64 {
Nov 27 20:00:31.066 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:00:31.066 INFO [stderr] 
Nov 27 20:00:31.067 INFO [stderr] warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable
Nov 27 20:00:31.067 INFO [stderr]  --> src/main.rs:1:12
Nov 27 20:00:31.067 INFO [stderr]   |
Nov 27 20:00:31.067 INFO [stderr] 1 | #![feature(duration_extras)]
Nov 27 20:00:31.067 INFO [stderr]   |            ^^^^^^^^^^^^^^^
Nov 27 20:00:31.067 INFO [stderr]   |
Nov 27 20:00:31.067 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 27 20:00:31.067 INFO [stderr] 
Nov 27 20:00:31.137 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.61s
Nov 27 20:00:31.146 INFO [stderr] su: No module specific data is present
Nov 27 20:00:32.323 INFO running `"docker" "inspect" "2a983684372cff1cb99a69ec4f035cb82dd4afb8da67f2a74bea31489bcd1067"`
Nov 27 20:00:32.604 INFO running `"docker" "rm" "-f" "2a983684372cff1cb99a69ec4f035cb82dd4afb8da67f2a74bea31489bcd1067"`
Nov 27 20:00:32.868 INFO [stdout] 2a983684372cff1cb99a69ec4f035cb82dd4afb8da67f2a74bea31489bcd1067