Oct 12 13:17:52.865 INFO checking souvik1997/fsbench against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 13:17:52.866 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 13:17:53.325 INFO blam! 079380b45052cc8d4fc06af66f83e1a207f2eb8c106fbd0f2a83fbbe2e0ee6ce
Oct 12 13:17:53.326 INFO running `"docker" "start" "-a" "079380b45052cc8d4fc06af66f83e1a207f2eb8c106fbd0f2a83fbbe2e0ee6ce"`
Oct 12 13:17:55.332 INFO kablam! usermod: no changes
Oct 12 13:17:55.572 INFO kablam!     Checking log v0.4.1
Oct 12 13:17:55.576 INFO kablam!     Checking num-integer v0.1.36
Oct 12 13:17:55.603 INFO kablam!     Checking num-complex v0.1.43
Oct 12 13:17:55.623 INFO kablam!     Checking colored v1.6.0
Oct 12 13:17:55.625 INFO kablam!     Checking serde_json v1.0.11
Oct 12 13:17:55.627 INFO kablam!     Checking bytes v0.4.6
Oct 12 13:17:55.629 INFO kablam!     Checking remove_dir_all v0.3.0
Oct 12 13:17:55.630 INFO kablam!    Compiling serde_derive_internals v0.20.0
Oct 12 13:17:57.162 INFO kablam!    Compiling num-derive v0.2.0
Oct 12 13:17:58.864 INFO kablam!     Checking tempdir v0.3.6
Oct 12 13:17:59.073 INFO kablam!     Checking rayon v1.0.0
Oct 12 13:17:59.217 INFO kablam!     Checking fern v0.5.2
Oct 12 13:18:01.256 INFO kablam!     Checking num-bigint v0.1.43
Oct 12 13:18:02.216 INFO kablam!     Checking num-iter v0.1.35
Oct 12 13:18:03.004 INFO kablam!     Checking nix v0.10.0
Oct 12 13:18:12.505 INFO kablam!    Compiling serde_derive v1.0.29
Oct 12 13:18:14.136 INFO kablam!     Checking num-rational v0.1.42
Oct 12 13:18:16.777 INFO kablam!     Checking num v0.1.42
Oct 12 13:18:17.684 INFO kablam!     Checking chrono v0.4.0
Oct 12 13:18:32.032 INFO kablam!     Checking fsbench v0.1.0 (/source)
Oct 12 13:18:33.840 INFO kablam! warning: unused import: `std::process::Command`
Oct 12 13:18:33.841 INFO kablam!    --> src/fsbench/blktrace/trace.rs:173:13
Oct 12 13:18:33.841 INFO kablam!     |
Oct 12 13:18:33.841 INFO kablam! 173 |         use std::process::Command;
Oct 12 13:18:33.841 INFO kablam!     |             ^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:33.842 INFO kablam!     |
Oct 12 13:18:33.848 INFO kablam!     = note: #[warn(unused_imports)] on by default
Oct 12 13:18:33.848 INFO kablam! 
Oct 12 13:18:33.965 INFO kablam! warning: unused import: `std::process::Command`
Oct 12 13:18:33.965 INFO kablam!    --> src/fsbench/blktrace/trace.rs:173:13
Oct 12 13:18:33.965 INFO kablam!     |
Oct 12 13:18:33.966 INFO kablam! 173 |         use std::process::Command;
Oct 12 13:18:33.966 INFO kablam!     |             ^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:33.966 INFO kablam!     |
Oct 12 13:18:33.967 INFO kablam!     = note: #[warn(unused_imports)] on by default
Oct 12 13:18:33.972 INFO kablam! 
Oct 12 13:18:35.508 INFO kablam! warning: unused variable: `split_string`
Oct 12 13:18:35.508 INFO kablam!   --> src/fsbench/operation.rs:28:9
Oct 12 13:18:35.508 INFO kablam!    |
Oct 12 13:18:35.508 INFO kablam! 28 |     let split_string = vec![String::new()];
Oct 12 13:18:35.508 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_split_string` instead
Oct 12 13:18:35.508 INFO kablam!    |
Oct 12 13:18:35.508 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 13:18:35.508 INFO kablam! 
Oct 12 13:18:35.508 INFO kablam! warning: variable `bytes` is assigned to, but never used
Oct 12 13:18:35.508 INFO kablam!    --> src/fsbench/operation.rs:304:17
Oct 12 13:18:35.509 INFO kablam!     |
Oct 12 13:18:35.509 INFO kablam! 304 |         let mut bytes = 0;
Oct 12 13:18:35.509 INFO kablam!     |                 ^^^^^
Oct 12 13:18:35.509 INFO kablam!     |
Oct 12 13:18:35.509 INFO kablam!     = note: consider using `_bytes` instead
Oct 12 13:18:35.509 INFO kablam! 
Oct 12 13:18:35.716 INFO kablam! warning: unused variable: `split_string`
Oct 12 13:18:35.717 INFO kablam!   --> src/fsbench/operation.rs:28:9
Oct 12 13:18:35.717 INFO kablam!    |
Oct 12 13:18:35.717 INFO kablam! 28 |     let split_string = vec![String::new()];
Oct 12 13:18:35.717 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_split_string` instead
Oct 12 13:18:35.717 INFO kablam!    |
Oct 12 13:18:35.720 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 13:18:35.720 INFO kablam! 
Oct 12 13:18:35.721 INFO kablam! warning: variable `bytes` is assigned to, but never used
Oct 12 13:18:35.721 INFO kablam!    --> src/fsbench/operation.rs:304:17
Oct 12 13:18:35.721 INFO kablam!     |
Oct 12 13:18:35.721 INFO kablam! 304 |         let mut bytes = 0;
Oct 12 13:18:35.721 INFO kablam!     |                 ^^^^^
Oct 12 13:18:35.728 INFO kablam!     |
Oct 12 13:18:35.728 INFO kablam!     = note: consider using `_bytes` instead
Oct 12 13:18:35.728 INFO kablam! 
Oct 12 13:18:35.896 INFO kablam! warning: constant item is never used: `SECTOR_SIZE`
Oct 12 13:18:35.897 INFO kablam!  --> src/fsbench/blktrace/trace.rs:9:1
Oct 12 13:18:35.897 INFO kablam!   |
Oct 12 13:18:35.897 INFO kablam! 9 | pub const SECTOR_SIZE: usize = 512;
Oct 12 13:18:35.897 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:35.898 INFO kablam!   |
Oct 12 13:18:35.898 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 13:18:35.898 INFO kablam! 
Oct 12 13:18:35.898 INFO kablam! warning: field is never used: `elapsed`
Oct 12 13:18:35.898 INFO kablam!    --> src/fsbench/blktrace/trace.rs:147:5
Oct 12 13:18:35.899 INFO kablam!     |
Oct 12 13:18:35.899 INFO kablam! 147 |     elapsed: Duration,
Oct 12 13:18:35.899 INFO kablam!     |     ^^^^^^^^^^^^^^^^^
Oct 12 13:18:35.899 INFO kablam! 
Oct 12 13:18:35.899 INFO kablam! warning: method is never used: `total_duration`
Oct 12 13:18:35.899 INFO kablam!    --> src/fsbench/blktrace/trace.rs:243:5
Oct 12 13:18:35.899 INFO kablam!     |
Oct 12 13:18:35.899 INFO kablam! 243 |     pub fn total_duration(&self) -> Duration {
Oct 12 13:18:35.899 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:35.899 INFO kablam! 
Oct 12 13:18:35.899 INFO kablam! warning: struct is never constructed: `Read`
Oct 12 13:18:35.900 INFO kablam!    --> src/fsbench/operation.rs:160:1
Oct 12 13:18:35.900 INFO kablam!     |
Oct 12 13:18:35.900 INFO kablam! 160 | pub struct Read {
Oct 12 13:18:35.900 INFO kablam!     | ^^^^^^^^^^^^^^^
Oct 12 13:18:35.900 INFO kablam! 
Oct 12 13:18:35.900 INFO kablam! warning: method is never used: `new`
Oct 12 13:18:35.900 INFO kablam!    --> src/fsbench/operation.rs:165:5
Oct 12 13:18:35.900 INFO kablam!     |
Oct 12 13:18:35.900 INFO kablam! 165 |     pub fn new() -> Read {
Oct 12 13:18:35.900 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:35.900 INFO kablam! 
Oct 12 13:18:35.900 INFO kablam! warning: method is never used: `run`
Oct 12 13:18:35.900 INFO kablam!    --> src/fsbench/operation.rs:171:5
Oct 12 13:18:35.900 INFO kablam!     |
Oct 12 13:18:35.900 INFO kablam! 171 |     pub fn run(&mut self, fd: RawFd, buf: &mut [u8]) -> nix::Result<usize> {
Oct 12 13:18:35.900 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:35.900 INFO kablam! 
Oct 12 13:18:35.900 INFO kablam! warning: struct is never constructed: `Write`
Oct 12 13:18:35.900 INFO kablam!    --> src/fsbench/operation.rs:192:1
Oct 12 13:18:35.900 INFO kablam!     |
Oct 12 13:18:35.901 INFO kablam! 192 | pub struct Write {
Oct 12 13:18:35.901 INFO kablam!     | ^^^^^^^^^^^^^^^^
Oct 12 13:18:35.901 INFO kablam! 
Oct 12 13:18:35.901 INFO kablam! warning: method is never used: `new`
Oct 12 13:18:35.901 INFO kablam!    --> src/fsbench/operation.rs:197:5
Oct 12 13:18:35.901 INFO kablam!     |
Oct 12 13:18:35.901 INFO kablam! 197 |     pub fn new() -> Write {
Oct 12 13:18:35.901 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:35.901 INFO kablam! 
Oct 12 13:18:35.901 INFO kablam! warning: method is never used: `run`
Oct 12 13:18:35.901 INFO kablam!    --> src/fsbench/operation.rs:203:5
Oct 12 13:18:35.901 INFO kablam!     |
Oct 12 13:18:35.901 INFO kablam! 203 |     pub fn run(&mut self, fd: RawFd, buf: &[u8]) -> nix::Result<usize> {
Oct 12 13:18:35.901 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:35.901 INFO kablam! 
Oct 12 13:18:35.901 INFO kablam! warning: method is never used: `ops_per_second`
Oct 12 13:18:35.901 INFO kablam!   --> src/fsbench/statistics.rs:42:5
Oct 12 13:18:35.901 INFO kablam!    |
Oct 12 13:18:35.902 INFO kablam! 42 |     pub fn ops_per_second(&self) -> f64 {
Oct 12 13:18:35.902 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:35.902 INFO kablam! 
Oct 12 13:18:35.902 INFO kablam! warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable
Oct 12 13:18:35.902 INFO kablam!  --> src/main.rs:1:12
Oct 12 13:18:35.902 INFO kablam!   |
Oct 12 13:18:35.902 INFO kablam! 1 | #![feature(duration_extras)]
Oct 12 13:18:35.902 INFO kablam!   |            ^^^^^^^^^^^^^^^
Oct 12 13:18:35.902 INFO kablam!   |
Oct 12 13:18:35.902 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 12 13:18:35.902 INFO kablam! 
Oct 12 13:18:36.132 INFO kablam! warning: constant item is never used: `SECTOR_SIZE`
Oct 12 13:18:36.132 INFO kablam!  --> src/fsbench/blktrace/trace.rs:9:1
Oct 12 13:18:36.132 INFO kablam!   |
Oct 12 13:18:36.132 INFO kablam! 9 | pub const SECTOR_SIZE: usize = 512;
Oct 12 13:18:36.132 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:36.132 INFO kablam!   |
Oct 12 13:18:36.132 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 13:18:36.132 INFO kablam! 
Oct 12 13:18:36.132 INFO kablam! warning: field is never used: `elapsed`
Oct 12 13:18:36.132 INFO kablam!    --> src/fsbench/blktrace/trace.rs:147:5
Oct 12 13:18:36.132 INFO kablam!     |
Oct 12 13:18:36.132 INFO kablam! 147 |     elapsed: Duration,
Oct 12 13:18:36.132 INFO kablam!     |     ^^^^^^^^^^^^^^^^^
Oct 12 13:18:36.133 INFO kablam! 
Oct 12 13:18:36.133 INFO kablam! warning: method is never used: `total_duration`
Oct 12 13:18:36.133 INFO kablam!    --> src/fsbench/blktrace/trace.rs:243:5
Oct 12 13:18:36.133 INFO kablam!     |
Oct 12 13:18:36.133 INFO kablam! 243 |     pub fn total_duration(&self) -> Duration {
Oct 12 13:18:36.133 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:36.133 INFO kablam! 
Oct 12 13:18:36.133 INFO kablam! warning: struct is never constructed: `Read`
Oct 12 13:18:36.133 INFO kablam!    --> src/fsbench/operation.rs:160:1
Oct 12 13:18:36.133 INFO kablam!     |
Oct 12 13:18:36.133 INFO kablam! 160 | pub struct Read {
Oct 12 13:18:36.133 INFO kablam!     | ^^^^^^^^^^^^^^^
Oct 12 13:18:36.133 INFO kablam! 
Oct 12 13:18:36.136 INFO kablam! warning: method is never used: `new`
Oct 12 13:18:36.136 INFO kablam!    --> src/fsbench/operation.rs:165:5
Oct 12 13:18:36.136 INFO kablam!     |
Oct 12 13:18:36.136 INFO kablam! 165 |     pub fn new() -> Read {
Oct 12 13:18:36.136 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:36.136 INFO kablam! 
Oct 12 13:18:36.136 INFO kablam! warning: method is never used: `run`
Oct 12 13:18:36.136 INFO kablam!    --> src/fsbench/operation.rs:171:5
Oct 12 13:18:36.136 INFO kablam!     |
Oct 12 13:18:36.136 INFO kablam! 171 |     pub fn run(&mut self, fd: RawFd, buf: &mut [u8]) -> nix::Result<usize> {
Oct 12 13:18:36.136 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:36.136 INFO kablam! 
Oct 12 13:18:36.136 INFO kablam! warning: struct is never constructed: `Write`
Oct 12 13:18:36.136 INFO kablam!    --> src/fsbench/operation.rs:192:1
Oct 12 13:18:36.136 INFO kablam!     |
Oct 12 13:18:36.136 INFO kablam! 192 | pub struct Write {
Oct 12 13:18:36.136 INFO kablam!     | ^^^^^^^^^^^^^^^^
Oct 12 13:18:36.136 INFO kablam! 
Oct 12 13:18:36.136 INFO kablam! warning: method is never used: `new`
Oct 12 13:18:36.136 INFO kablam!    --> src/fsbench/operation.rs:197:5
Oct 12 13:18:36.136 INFO kablam!     |
Oct 12 13:18:36.136 INFO kablam! 197 |     pub fn new() -> Write {
Oct 12 13:18:36.136 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:36.137 INFO kablam! 
Oct 12 13:18:36.137 INFO kablam! warning: method is never used: `run`
Oct 12 13:18:36.137 INFO kablam!    --> src/fsbench/operation.rs:203:5
Oct 12 13:18:36.137 INFO kablam!     |
Oct 12 13:18:36.137 INFO kablam! 203 |     pub fn run(&mut self, fd: RawFd, buf: &[u8]) -> nix::Result<usize> {
Oct 12 13:18:36.137 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:36.137 INFO kablam! 
Oct 12 13:18:36.137 INFO kablam! warning: method is never used: `ops_per_second`
Oct 12 13:18:36.137 INFO kablam!   --> src/fsbench/statistics.rs:42:5
Oct 12 13:18:36.137 INFO kablam!    |
Oct 12 13:18:36.137 INFO kablam! 42 |     pub fn ops_per_second(&self) -> f64 {
Oct 12 13:18:36.137 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 13:18:36.137 INFO kablam! 
Oct 12 13:18:36.140 INFO kablam! warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable
Oct 12 13:18:36.140 INFO kablam!  --> src/main.rs:1:12
Oct 12 13:18:36.140 INFO kablam!   |
Oct 12 13:18:36.140 INFO kablam! 1 | #![feature(duration_extras)]
Oct 12 13:18:36.140 INFO kablam!   |            ^^^^^^^^^^^^^^^
Oct 12 13:18:36.140 INFO kablam!   |
Oct 12 13:18:36.140 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 12 13:18:36.140 INFO kablam! 
Oct 12 13:18:36.234 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 40.88s
Oct 12 13:18:36.250 INFO kablam! su: No module specific data is present
Oct 12 13:18:36.989 INFO running `"docker" "rm" "-f" "079380b45052cc8d4fc06af66f83e1a207f2eb8c106fbd0f2a83fbbe2e0ee6ce"`
Oct 12 13:18:37.426 INFO blam! 079380b45052cc8d4fc06af66f83e1a207f2eb8c106fbd0f2a83fbbe2e0ee6ce