Nov 29 17:47:27.117 INFO checking souvik1997/fsbench against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 17:47:27.117 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 29 17:47:27.606 INFO [stdout] ca6aac60f41d7a5d2dda936351425de48d0b8b862176e5027eba8df72f5511d9
Nov 29 17:47:27.610 INFO running `"docker" "start" "-a" "ca6aac60f41d7a5d2dda936351425de48d0b8b862176e5027eba8df72f5511d9"`
Nov 29 17:47:29.319 INFO [stderr] usermod: no changes
Nov 29 17:47:29.608 INFO [stderr]    Compiling nix v0.10.0
Nov 29 17:47:29.609 INFO [stderr]    Compiling num-traits v0.2.2
Nov 29 17:47:29.625 INFO [stderr]     Checking log v0.4.1
Nov 29 17:47:29.625 INFO [stderr]     Checking iovec v0.1.2
Nov 29 17:47:29.640 INFO [stderr]     Checking num-complex v0.1.43
Nov 29 17:47:29.640 INFO [stderr]     Checking serde_json v1.0.11
Nov 29 17:47:29.640 INFO [stderr]     Checking crossbeam-epoch v0.3.0
Nov 29 17:47:29.640 INFO [stderr]     Checking num-bigint v0.1.43
Nov 29 17:47:30.928 INFO [stderr]    Compiling serde_derive_internals v0.20.0
Nov 29 17:47:31.082 INFO [stderr]     Checking bytes v0.4.6
Nov 29 17:47:32.798 INFO [stderr]     Checking fern v0.5.2
Nov 29 17:47:33.915 INFO [stderr]     Checking crossbeam-deque v0.2.0
Nov 29 17:47:36.923 INFO [stderr]     Checking rayon-core v1.4.0
Nov 29 17:47:42.180 INFO [stderr]     Checking rayon v1.0.0
Nov 29 17:47:42.184 INFO [stderr]     Checking num-rational v0.1.42
Nov 29 17:47:42.286 INFO [stderr]    Compiling num-derive v0.2.0
Nov 29 17:47:47.712 INFO [stderr]     Checking num v0.1.42
Nov 29 17:47:48.285 INFO [stderr]    Compiling serde_derive v1.0.29
Nov 29 17:47:48.822 INFO [stderr]     Checking chrono v0.4.0
Nov 29 17:48:06.776 INFO [stderr]     Checking fsbench v0.1.0 (/source)
Nov 29 17:48:08.460 INFO [stderr] warning: unused import: `std::process::Command`
Nov 29 17:48:08.461 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:173:13
Nov 29 17:48:08.461 INFO [stderr]     |
Nov 29 17:48:08.461 INFO [stderr] 173 |         use std::process::Command;
Nov 29 17:48:08.462 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:08.462 INFO [stderr]     |
Nov 29 17:48:08.462 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 29 17:48:08.462 INFO [stderr] 
Nov 29 17:48:08.463 INFO [stderr] warning: unused import: `std::process::Command`
Nov 29 17:48:08.463 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:173:13
Nov 29 17:48:08.464 INFO [stderr]     |
Nov 29 17:48:08.464 INFO [stderr] 173 |         use std::process::Command;
Nov 29 17:48:08.464 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:08.464 INFO [stderr]     |
Nov 29 17:48:08.464 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 29 17:48:08.464 INFO [stderr] 
Nov 29 17:48:09.919 INFO [stderr] warning: unused variable: `split_string`
Nov 29 17:48:09.919 INFO [stderr]   --> src/fsbench/operation.rs:28:9
Nov 29 17:48:09.919 INFO [stderr]    |
Nov 29 17:48:09.920 INFO [stderr] 28 |     let split_string = vec![String::new()];
Nov 29 17:48:09.920 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_split_string` instead
Nov 29 17:48:09.920 INFO [stderr]    |
Nov 29 17:48:09.921 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 17:48:09.921 INFO [stderr] 
Nov 29 17:48:09.928 INFO [stderr] warning: variable `bytes` is assigned to, but never used
Nov 29 17:48:09.928 INFO [stderr]    --> src/fsbench/operation.rs:304:17
Nov 29 17:48:09.929 INFO [stderr]     |
Nov 29 17:48:09.929 INFO [stderr] 304 |         let mut bytes = 0;
Nov 29 17:48:09.929 INFO [stderr]     |                 ^^^^^
Nov 29 17:48:09.930 INFO [stderr]     |
Nov 29 17:48:09.930 INFO [stderr]     = note: consider using `_bytes` instead
Nov 29 17:48:09.930 INFO [stderr] 
Nov 29 17:48:09.984 INFO [stderr] warning: unused variable: `split_string`
Nov 29 17:48:09.985 INFO [stderr]   --> src/fsbench/operation.rs:28:9
Nov 29 17:48:09.985 INFO [stderr]    |
Nov 29 17:48:09.985 INFO [stderr] 28 |     let split_string = vec![String::new()];
Nov 29 17:48:09.986 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_split_string` instead
Nov 29 17:48:09.986 INFO [stderr]    |
Nov 29 17:48:09.986 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 17:48:09.986 INFO [stderr] 
Nov 29 17:48:09.987 INFO [stderr] warning: variable `bytes` is assigned to, but never used
Nov 29 17:48:09.987 INFO [stderr]    --> src/fsbench/operation.rs:304:17
Nov 29 17:48:09.987 INFO [stderr]     |
Nov 29 17:48:09.988 INFO [stderr] 304 |         let mut bytes = 0;
Nov 29 17:48:09.988 INFO [stderr]     |                 ^^^^^
Nov 29 17:48:09.989 INFO [stderr]     |
Nov 29 17:48:09.989 INFO [stderr]     = note: consider using `_bytes` instead
Nov 29 17:48:09.989 INFO [stderr] 
Nov 29 17:48:10.511 INFO [stderr] warning: constant item is never used: `SECTOR_SIZE`
Nov 29 17:48:10.511 INFO [stderr]  --> src/fsbench/blktrace/trace.rs:9:1
Nov 29 17:48:10.511 INFO [stderr]   |
Nov 29 17:48:10.511 INFO [stderr] 9 | pub const SECTOR_SIZE: usize = 512;
Nov 29 17:48:10.512 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.512 INFO [stderr]   |
Nov 29 17:48:10.512 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 29 17:48:10.512 INFO [stderr] 
Nov 29 17:48:10.512 INFO [stderr] warning: field is never used: `elapsed`
Nov 29 17:48:10.512 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:147:5
Nov 29 17:48:10.512 INFO [stderr]     |
Nov 29 17:48:10.512 INFO [stderr] 147 |     elapsed: Duration,
Nov 29 17:48:10.513 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.513 INFO [stderr] 
Nov 29 17:48:10.513 INFO [stderr] warning: method is never used: `total_duration`
Nov 29 17:48:10.513 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:243:5
Nov 29 17:48:10.513 INFO [stderr]     |
Nov 29 17:48:10.513 INFO [stderr] 243 |     pub fn total_duration(&self) -> Duration {
Nov 29 17:48:10.513 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.513 INFO [stderr] 
Nov 29 17:48:10.513 INFO [stderr] warning: struct is never constructed: `Read`
Nov 29 17:48:10.513 INFO [stderr]    --> src/fsbench/operation.rs:160:1
Nov 29 17:48:10.513 INFO [stderr]     |
Nov 29 17:48:10.513 INFO [stderr] 160 | pub struct Read {
Nov 29 17:48:10.513 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 29 17:48:10.513 INFO [stderr] 
Nov 29 17:48:10.513 INFO [stderr] warning: method is never used: `new`
Nov 29 17:48:10.513 INFO [stderr]    --> src/fsbench/operation.rs:165:5
Nov 29 17:48:10.513 INFO [stderr]     |
Nov 29 17:48:10.513 INFO [stderr] 165 |     pub fn new() -> Read {
Nov 29 17:48:10.513 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.513 INFO [stderr] 
Nov 29 17:48:10.513 INFO [stderr] warning: method is never used: `run`
Nov 29 17:48:10.513 INFO [stderr]    --> src/fsbench/operation.rs:171:5
Nov 29 17:48:10.513 INFO [stderr]     |
Nov 29 17:48:10.513 INFO [stderr] 171 |     pub fn run(&mut self, fd: RawFd, buf: &mut [u8]) -> nix::Result<usize> {
Nov 29 17:48:10.513 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.513 INFO [stderr] 
Nov 29 17:48:10.513 INFO [stderr] warning: struct is never constructed: `Write`
Nov 29 17:48:10.513 INFO [stderr]    --> src/fsbench/operation.rs:192:1
Nov 29 17:48:10.513 INFO [stderr]     |
Nov 29 17:48:10.513 INFO [stderr] 192 | pub struct Write {
Nov 29 17:48:10.513 INFO [stderr]     | ^^^^^^^^^^^^^^^^
Nov 29 17:48:10.513 INFO [stderr] 
Nov 29 17:48:10.513 INFO [stderr] warning: method is never used: `new`
Nov 29 17:48:10.513 INFO [stderr]    --> src/fsbench/operation.rs:197:5
Nov 29 17:48:10.513 INFO [stderr]     |
Nov 29 17:48:10.513 INFO [stderr] 197 |     pub fn new() -> Write {
Nov 29 17:48:10.513 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.513 INFO [stderr] 
Nov 29 17:48:10.513 INFO [stderr] warning: method is never used: `run`
Nov 29 17:48:10.513 INFO [stderr]    --> src/fsbench/operation.rs:203:5
Nov 29 17:48:10.513 INFO [stderr]     |
Nov 29 17:48:10.513 INFO [stderr] 203 |     pub fn run(&mut self, fd: RawFd, buf: &[u8]) -> nix::Result<usize> {
Nov 29 17:48:10.513 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.513 INFO [stderr] 
Nov 29 17:48:10.513 INFO [stderr] warning: method is never used: `ops_per_second`
Nov 29 17:48:10.513 INFO [stderr]   --> src/fsbench/statistics.rs:42:5
Nov 29 17:48:10.513 INFO [stderr]    |
Nov 29 17:48:10.513 INFO [stderr] 42 |     pub fn ops_per_second(&self) -> f64 {
Nov 29 17:48:10.513 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.513 INFO [stderr] 
Nov 29 17:48:10.532 INFO [stderr] warning: constant item is never used: `SECTOR_SIZE`
Nov 29 17:48:10.532 INFO [stderr]  --> src/fsbench/blktrace/trace.rs:9:1
Nov 29 17:48:10.533 INFO [stderr]   |
Nov 29 17:48:10.533 INFO [stderr] 9 | pub const SECTOR_SIZE: usize = 512;
Nov 29 17:48:10.533 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.533 INFO [stderr] warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable
Nov 29 17:48:10.534 INFO [stderr]  --> src/main.rs:1:12
Nov 29 17:48:10.534 INFO [stderr]   |
Nov 29 17:48:10.534 INFO [stderr] 1 | #![feature(duration_extras)]
Nov 29 17:48:10.534 INFO [stderr]   |            ^^^^^^^^^^^^^^^
Nov 29 17:48:10.535 INFO [stderr]   |
Nov 29 17:48:10.535 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 29 17:48:10.535 INFO [stderr] 
Nov 29 17:48:10.535 INFO [stderr]   |
Nov 29 17:48:10.536 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 29 17:48:10.536 INFO [stderr] 
Nov 29 17:48:10.536 INFO [stderr] warning: field is never used: `elapsed`
Nov 29 17:48:10.537 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:147:5
Nov 29 17:48:10.537 INFO [stderr]     |
Nov 29 17:48:10.537 INFO [stderr] 147 |     elapsed: Duration,
Nov 29 17:48:10.538 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.538 INFO [stderr] 
Nov 29 17:48:10.538 INFO [stderr] warning: method is never used: `total_duration`
Nov 29 17:48:10.538 INFO [stderr]    --> src/fsbench/blktrace/trace.rs:243:5
Nov 29 17:48:10.539 INFO [stderr]     |
Nov 29 17:48:10.539 INFO [stderr] 243 |     pub fn total_duration(&self) -> Duration {
Nov 29 17:48:10.539 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.539 INFO [stderr] 
Nov 29 17:48:10.540 INFO [stderr] warning: struct is never constructed: `Read`
Nov 29 17:48:10.540 INFO [stderr]    --> src/fsbench/operation.rs:160:1
Nov 29 17:48:10.541 INFO [stderr]     |
Nov 29 17:48:10.541 INFO [stderr] 160 | pub struct Read {
Nov 29 17:48:10.541 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 29 17:48:10.541 INFO [stderr] 
Nov 29 17:48:10.542 INFO [stderr] warning: method is never used: `new`
Nov 29 17:48:10.542 INFO [stderr]    --> src/fsbench/operation.rs:165:5
Nov 29 17:48:10.542 INFO [stderr]     |
Nov 29 17:48:10.542 INFO [stderr] 165 |     pub fn new() -> Read {
Nov 29 17:48:10.543 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.543 INFO [stderr] 
Nov 29 17:48:10.543 INFO [stderr] warning: method is never used: `run`
Nov 29 17:48:10.544 INFO [stderr]    --> src/fsbench/operation.rs:171:5
Nov 29 17:48:10.544 INFO [stderr]     |
Nov 29 17:48:10.544 INFO [stderr] 171 |     pub fn run(&mut self, fd: RawFd, buf: &mut [u8]) -> nix::Result<usize> {
Nov 29 17:48:10.544 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.544 INFO [stderr] 
Nov 29 17:48:10.545 INFO [stderr] warning: struct is never constructed: `Write`
Nov 29 17:48:10.545 INFO [stderr]    --> src/fsbench/operation.rs:192:1
Nov 29 17:48:10.545 INFO [stderr]     |
Nov 29 17:48:10.546 INFO [stderr] 192 | pub struct Write {
Nov 29 17:48:10.546 INFO [stderr]     | ^^^^^^^^^^^^^^^^
Nov 29 17:48:10.546 INFO [stderr] 
Nov 29 17:48:10.546 INFO [stderr] warning: method is never used: `new`
Nov 29 17:48:10.547 INFO [stderr]    --> src/fsbench/operation.rs:197:5
Nov 29 17:48:10.547 INFO [stderr]     |
Nov 29 17:48:10.547 INFO [stderr] 197 |     pub fn new() -> Write {
Nov 29 17:48:10.547 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.548 INFO [stderr] 
Nov 29 17:48:10.548 INFO [stderr] warning: method is never used: `run`
Nov 29 17:48:10.548 INFO [stderr]    --> src/fsbench/operation.rs:203:5
Nov 29 17:48:10.548 INFO [stderr]     |
Nov 29 17:48:10.549 INFO [stderr] 203 |     pub fn run(&mut self, fd: RawFd, buf: &[u8]) -> nix::Result<usize> {
Nov 29 17:48:10.549 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.549 INFO [stderr] 
Nov 29 17:48:10.550 INFO [stderr] warning: method is never used: `ops_per_second`
Nov 29 17:48:10.550 INFO [stderr]   --> src/fsbench/statistics.rs:42:5
Nov 29 17:48:10.550 INFO [stderr]    |
Nov 29 17:48:10.550 INFO [stderr] 42 |     pub fn ops_per_second(&self) -> f64 {
Nov 29 17:48:10.551 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:48:10.551 INFO [stderr] 
Nov 29 17:48:10.553 INFO [stderr] warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable
Nov 29 17:48:10.553 INFO [stderr]  --> src/main.rs:1:12
Nov 29 17:48:10.554 INFO [stderr]   |
Nov 29 17:48:10.554 INFO [stderr] 1 | #![feature(duration_extras)]
Nov 29 17:48:10.554 INFO [stderr]   |            ^^^^^^^^^^^^^^^
Nov 29 17:48:10.555 INFO [stderr]   |
Nov 29 17:48:10.555 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 29 17:48:10.555 INFO [stderr] 
Nov 29 17:48:10.692 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.34s
Nov 29 17:48:10.701 INFO [stderr] su: No module specific data is present
Nov 29 17:48:12.667 INFO running `"docker" "inspect" "ca6aac60f41d7a5d2dda936351425de48d0b8b862176e5027eba8df72f5511d9"`
Nov 29 17:48:13.026 INFO running `"docker" "rm" "-f" "ca6aac60f41d7a5d2dda936351425de48d0b8b862176e5027eba8df72f5511d9"`
Nov 29 17:48:13.336 INFO [stdout] ca6aac60f41d7a5d2dda936351425de48d0b8b862176e5027eba8df72f5511d9