[INFO] updating cached repository oussama/leek-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/oussama/leek-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/oussama/leek-rs" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/oussama/leek-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/oussama/leek-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/oussama/leek-rs" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/oussama/leek-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/oussama/leek-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9a39ea3da3a2b5a1ae89f5bbbf61f08432fffe4c
[INFO] sha for GitHub repo oussama/leek-rs: 9a39ea3da3a2b5a1ae89f5bbbf61f08432fffe4c
[INFO] validating manifest of oussama/leek-rs on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of oussama/leek-rs on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing oussama/leek-rs
[INFO] finished frobbing oussama/leek-rs
[INFO] frobbed toml for oussama/leek-rs written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/oussama/leek-rs/Cargo.toml
[INFO] started frobbing oussama/leek-rs
[INFO] finished frobbing oussama/leek-rs
[INFO] frobbed toml for oussama/leek-rs written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/oussama/leek-rs/Cargo.toml
[INFO] crate oussama/leek-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking oussama/leek-rs against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/oussama/leek-rs:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 593f4aff778977ec8279707f080b32fbfe37cfc247f748be9ae75830456dcd28
[INFO] running `"docker" "start" "-a" "593f4aff778977ec8279707f080b32fbfe37cfc247f748be9ae75830456dcd28"`
[INFO] [stderr]     Checking serde v1.0.28
[INFO] [stderr]    Compiling syn v0.12.13
[INFO] [stderr]    Compiling serde_derive_internals v0.20.0
[INFO] [stderr]    Compiling serde_derive v1.0.28
[INFO] [stderr]     Checking bincode v1.0.0
[INFO] [stderr]     Checking leek v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `BufReader`
[INFO] [stderr]   --> src/lib.rs:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 | use std::io::{BufReader, BufWriter, Seek, SeekFrom};
[INFO] [stderr]    |               ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `while` condition
[INFO] [stderr]   --> src/lib.rs:77:19
[INFO] [stderr]    |
[INFO] [stderr] 77 |             while (read) {
[INFO] [stderr]    |                   ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufReader`
[INFO] [stderr]   --> src/lib.rs:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 | use std::io::{BufReader, BufWriter, Seek, SeekFrom};
[INFO] [stderr]    |               ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `while` condition
[INFO] [stderr]   --> src/lib.rs:77:19
[INFO] [stderr]    |
[INFO] [stderr] 77 |             while (read) {
[INFO] [stderr]    |                   ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `while` condition
[INFO] [stderr]    --> src/lib.rs:176:15
[INFO] [stderr]     |
[INFO] [stderr] 176 |         while (i < 10000) {
[INFO] [stderr]     |               ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]    --> src/lib.rs:189:5
[INFO] [stderr]     |
[INFO] [stderr] 189 |     thread::sleep_ms(100000);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/lib.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut file = if let Ok(mut file) = File::open(&file_path) {
[INFO] [stderr]    |                 ^^^^ help: consider prefixing with an underscore: `_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut file = if let Ok(mut file) = File::open(&file_path) {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/lib.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut file = if let Ok(mut file) = File::open(&file_path) {
[INFO] [stderr]    |                 ^^^^ help: consider prefixing with an underscore: `_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut file = if let Ok(mut file) = File::open(&file_path) {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.63s
[INFO] running `"docker" "inspect" "593f4aff778977ec8279707f080b32fbfe37cfc247f748be9ae75830456dcd28"`
[INFO] running `"docker" "rm" "-f" "593f4aff778977ec8279707f080b32fbfe37cfc247f748be9ae75830456dcd28"`
[INFO] [stdout] 593f4aff778977ec8279707f080b32fbfe37cfc247f748be9ae75830456dcd28