[INFO] updating cached repository souvik1997/fsbench [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/souvik1997/fsbench [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/souvik1997/fsbench" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/souvik1997/fsbench"` [INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/souvik1997/fsbench'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/souvik1997/fsbench" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/souvik1997/fsbench"` [INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/souvik1997/fsbench'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 77cc337e9e88a07ae9381abb4710f4c1b4ae2423 [INFO] sha for GitHub repo souvik1997/fsbench: 77cc337e9e88a07ae9381abb4710f4c1b4ae2423 [INFO] validating manifest of souvik1997/fsbench on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of souvik1997/fsbench on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing souvik1997/fsbench [INFO] finished frobbing souvik1997/fsbench [INFO] frobbed toml for souvik1997/fsbench written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/souvik1997/fsbench/Cargo.toml [INFO] started frobbing souvik1997/fsbench [INFO] finished frobbing souvik1997/fsbench [INFO] frobbed toml for souvik1997/fsbench written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/souvik1997/fsbench/Cargo.toml [INFO] crate souvik1997/fsbench already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking souvik1997/fsbench against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-0/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/souvik1997/fsbench:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 4c8156498a42089270c745aa74ebbfd1b82213126b9d9a013b7dae0c8f032791 [INFO] running `"docker" "start" "-a" "4c8156498a42089270c745aa74ebbfd1b82213126b9d9a013b7dae0c8f032791"` [INFO] [stderr] Checking serde v1.0.29 [INFO] [stderr] Compiling num-traits v0.2.2 [INFO] [stderr] Compiling proc-macro2 v0.2.3 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking num-bigint v0.1.43 [INFO] [stderr] Checking clap v2.29.2 [INFO] [stderr] Checking nix v0.10.0 [INFO] [stderr] Checking fern v0.5.2 [INFO] [stderr] Checking tempdir v0.3.6 [INFO] [stderr] Compiling quote v0.4.2 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Compiling syn v0.12.14 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking chrono v0.4.0 [INFO] [stderr] Compiling serde_derive_internals v0.20.0 [INFO] [stderr] Compiling num-derive v0.2.0 [INFO] [stderr] Compiling serde_derive v1.0.29 [INFO] [stderr] Checking serde_json v1.0.11 [INFO] [stderr] Checking fsbench v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: the item `rand` is imported redundantly [INFO] [stderr] --> src/benchmarks/create.rs:255:13 [INFO] [stderr] | [INFO] [stderr] 255 | use super::rand; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] ::: src/main.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | extern crate rand; [INFO] [stderr] | ------------------ the item `rand` is already imported here [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: the item `serde_json` is imported redundantly [INFO] [stderr] --> src/benchmarks/delete.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 10 | use super::serde_json; [INFO] [stderr] | ----------------- the item `serde_json` is already imported here [INFO] [stderr] ... [INFO] [stderr] 34 | use super::serde_json; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `rand` is imported redundantly [INFO] [stderr] --> src/benchmarks/delete.rs:55:13 [INFO] [stderr] | [INFO] [stderr] 55 | use super::rand; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] ::: src/main.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | extern crate rand; [INFO] [stderr] | ------------------ the item `rand` is already imported here [INFO] [stderr] [INFO] [stderr] warning: the item `serde_json` is imported redundantly [INFO] [stderr] --> src/benchmarks/rename.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 11 | use super::serde_json; [INFO] [stderr] | ----------------- the item `serde_json` is already imported here [INFO] [stderr] ... [INFO] [stderr] 35 | use super::serde_json; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `serde_json` is imported redundantly [INFO] [stderr] --> src/benchmarks/listdir.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 11 | use super::serde_json; [INFO] [stderr] | ----------------- the item `serde_json` is already imported here [INFO] [stderr] ... [INFO] [stderr] 35 | use super::serde_json; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `num` is imported redundantly [INFO] [stderr] --> src/fsbench/blktrace/trace.rs:78:13 [INFO] [stderr] | [INFO] [stderr] 78 | use num; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] ::: src/main.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | extern crate num; [INFO] [stderr] | ----------------- the item `num` is already imported here [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::process::Command` [INFO] [stderr] --> src/fsbench/blktrace/trace.rs:173:13 [INFO] [stderr] | [INFO] [stderr] 173 | use std::process::Command; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `rand` is imported redundantly [INFO] [stderr] --> src/benchmarks/create.rs:255:13 [INFO] [stderr] | [INFO] [stderr] 255 | use super::rand; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] ::: src/main.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | extern crate rand; [INFO] [stderr] | ------------------ the item `rand` is already imported here [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: the item `serde_json` is imported redundantly [INFO] [stderr] --> src/benchmarks/delete.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 10 | use super::serde_json; [INFO] [stderr] | ----------------- the item `serde_json` is already imported here [INFO] [stderr] ... [INFO] [stderr] 34 | use super::serde_json; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `rand` is imported redundantly [INFO] [stderr] --> src/benchmarks/delete.rs:55:13 [INFO] [stderr] | [INFO] [stderr] 55 | use super::rand; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] ::: src/main.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | extern crate rand; [INFO] [stderr] | ------------------ the item `rand` is already imported here [INFO] [stderr] [INFO] [stderr] warning: the item `serde_json` is imported redundantly [INFO] [stderr] --> src/benchmarks/rename.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 11 | use super::serde_json; [INFO] [stderr] | ----------------- the item `serde_json` is already imported here [INFO] [stderr] ... [INFO] [stderr] 35 | use super::serde_json; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `serde_json` is imported redundantly [INFO] [stderr] --> src/benchmarks/listdir.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 11 | use super::serde_json; [INFO] [stderr] | ----------------- the item `serde_json` is already imported here [INFO] [stderr] ... [INFO] [stderr] 35 | use super::serde_json; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `num` is imported redundantly [INFO] [stderr] --> src/fsbench/blktrace/trace.rs:78:13 [INFO] [stderr] | [INFO] [stderr] 78 | use num; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] ::: src/main.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | extern crate num; [INFO] [stderr] | ----------------- the item `num` is already imported here [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::process::Command` [INFO] [stderr] --> src/fsbench/blktrace/trace.rs:173:13 [INFO] [stderr] | [INFO] [stderr] 173 | use std::process::Command; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `split_string` [INFO] [stderr] --> src/fsbench/operation.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | let split_string = vec![String::new()]; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_split_string` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable `bytes` is assigned to, but never used [INFO] [stderr] --> src/fsbench/operation.rs:304:17 [INFO] [stderr] | [INFO] [stderr] 304 | let mut bytes = 0; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_bytes` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `split_string` [INFO] [stderr] --> src/fsbench/operation.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | let split_string = vec![String::new()]; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_split_string` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable `bytes` is assigned to, but never used [INFO] [stderr] --> src/fsbench/operation.rs:304:17 [INFO] [stderr] | [INFO] [stderr] 304 | let mut bytes = 0; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_bytes` instead [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `SECTOR_SIZE` [INFO] [stderr] --> src/fsbench/blktrace/trace.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | pub const SECTOR_SIZE: usize = 512; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `elapsed` [INFO] [stderr] --> src/fsbench/blktrace/trace.rs:147:5 [INFO] [stderr] | [INFO] [stderr] 147 | elapsed: Duration, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `total_duration` [INFO] [stderr] --> src/fsbench/blktrace/trace.rs:243:5 [INFO] [stderr] | [INFO] [stderr] 243 | pub fn total_duration(&self) -> Duration { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Read` [INFO] [stderr] --> src/fsbench/operation.rs:160:1 [INFO] [stderr] | [INFO] [stderr] 160 | pub struct Read { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/fsbench/operation.rs:165:5 [INFO] [stderr] | [INFO] [stderr] 165 | pub fn new() -> Read { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/fsbench/operation.rs:171:5 [INFO] [stderr] | [INFO] [stderr] 171 | pub fn run(&mut self, fd: RawFd, buf: &mut [u8]) -> nix::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Write` [INFO] [stderr] --> src/fsbench/operation.rs:192:1 [INFO] [stderr] | [INFO] [stderr] 192 | pub struct Write { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/fsbench/operation.rs:197:5 [INFO] [stderr] | [INFO] [stderr] 197 | pub fn new() -> Write { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/fsbench/operation.rs:203:5 [INFO] [stderr] | [INFO] [stderr] 203 | pub fn run(&mut self, fd: RawFd, buf: &[u8]) -> nix::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `ops_per_second` [INFO] [stderr] --> src/fsbench/statistics.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 42 | pub fn ops_per_second(&self) -> f64 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(duration_extras)] [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(stable_features)] on by default [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `SECTOR_SIZE` [INFO] [stderr] --> src/fsbench/blktrace/trace.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | pub const SECTOR_SIZE: usize = 512; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `elapsed` [INFO] [stderr] --> src/fsbench/blktrace/trace.rs:147:5 [INFO] [stderr] | [INFO] [stderr] 147 | elapsed: Duration, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `total_duration` [INFO] [stderr] --> src/fsbench/blktrace/trace.rs:243:5 [INFO] [stderr] | [INFO] [stderr] 243 | pub fn total_duration(&self) -> Duration { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Read` [INFO] [stderr] --> src/fsbench/operation.rs:160:1 [INFO] [stderr] | [INFO] [stderr] 160 | pub struct Read { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/fsbench/operation.rs:165:5 [INFO] [stderr] | [INFO] [stderr] 165 | pub fn new() -> Read { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/fsbench/operation.rs:171:5 [INFO] [stderr] | [INFO] [stderr] 171 | pub fn run(&mut self, fd: RawFd, buf: &mut [u8]) -> nix::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Write` [INFO] [stderr] --> src/fsbench/operation.rs:192:1 [INFO] [stderr] | [INFO] [stderr] 192 | pub struct Write { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/fsbench/operation.rs:197:5 [INFO] [stderr] | [INFO] [stderr] 197 | pub fn new() -> Write { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/fsbench/operation.rs:203:5 [INFO] [stderr] | [INFO] [stderr] 203 | pub fn run(&mut self, fd: RawFd, buf: &[u8]) -> nix::Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `ops_per_second` [INFO] [stderr] --> src/fsbench/statistics.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 42 | pub fn ops_per_second(&self) -> f64 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `duration_extras` has been stable since 1.27.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(duration_extras)] [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(stable_features)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 50.89s [INFO] running `"docker" "inspect" "4c8156498a42089270c745aa74ebbfd1b82213126b9d9a013b7dae0c8f032791"` [INFO] running `"docker" "rm" "-f" "4c8156498a42089270c745aa74ebbfd1b82213126b9d9a013b7dae0c8f032791"` [INFO] [stdout] 4c8156498a42089270c745aa74ebbfd1b82213126b9d9a013b7dae0c8f032791