[INFO] updating cached repository 8bittree/pietro
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/8bittree/pietro
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/8bittree/pietro" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/8bittree/pietro"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/8bittree/pietro'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/8bittree/pietro" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/8bittree/pietro"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/8bittree/pietro'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 44376cf3f47db5ec40b2da0821c09e858a54bbe3
[INFO] sha for GitHub repo 8bittree/pietro: 44376cf3f47db5ec40b2da0821c09e858a54bbe3
[INFO] validating manifest of 8bittree/pietro on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of 8bittree/pietro on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing 8bittree/pietro
[INFO] finished frobbing 8bittree/pietro
[INFO] frobbed toml for 8bittree/pietro written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/8bittree/pietro/Cargo.toml
[INFO] started frobbing 8bittree/pietro
[INFO] finished frobbing 8bittree/pietro
[INFO] frobbed toml for 8bittree/pietro written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/8bittree/pietro/Cargo.toml
[INFO] crate 8bittree/pietro has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing 8bittree/pietro against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/8bittree/pietro:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 50a23c72ee417fc00cb13a80aad5108ca8dce331920324730b981f1ee17feeb6
[INFO] running `"docker" "start" "-a" "50a23c72ee417fc00cb13a80aad5108ca8dce331920324730b981f1ee17feeb6"`
[INFO] [stderr]    Compiling pietro v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `DirEntry`
[INFO] [stderr]  --> src/main.rs:1:21
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::{self, DirEntry};
[INFO] [stderr]   |                     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `dirEntries` should have a snake case name
[INFO] [stderr]   --> src/main.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 |         if let Ok(mut dirEntries) = fs::read_dir(dir) {
[INFO] [stderr]    |                       ^^^^^^^^^^ help: convert the identifier to snake case: `dir_entries`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "50a23c72ee417fc00cb13a80aad5108ca8dce331920324730b981f1ee17feeb6"`
[INFO] running `"docker" "rm" "-f" "50a23c72ee417fc00cb13a80aad5108ca8dce331920324730b981f1ee17feeb6"`
[INFO] [stdout] 50a23c72ee417fc00cb13a80aad5108ca8dce331920324730b981f1ee17feeb6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/8bittree/pietro:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] b9f613214416a007c5f2c01b590542889eea09ded916539679b864599d66e52f
[INFO] running `"docker" "start" "-a" "b9f613214416a007c5f2c01b590542889eea09ded916539679b864599d66e52f"`
[INFO] [stderr]    Compiling pietro v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `DirEntry`
[INFO] [stderr]  --> src/main.rs:1:21
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::{self, DirEntry};
[INFO] [stderr]   |                     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `dirEntries` should have a snake case name
[INFO] [stderr]   --> src/main.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 |         if let Ok(mut dirEntries) = fs::read_dir(dir) {
[INFO] [stderr]    |                       ^^^^^^^^^^ help: convert the identifier to snake case: `dir_entries`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "b9f613214416a007c5f2c01b590542889eea09ded916539679b864599d66e52f"`
[INFO] running `"docker" "rm" "-f" "b9f613214416a007c5f2c01b590542889eea09ded916539679b864599d66e52f"`
[INFO] [stdout] b9f613214416a007c5f2c01b590542889eea09ded916539679b864599d66e52f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/8bittree/pietro:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 315d8c8de6821a368cf0ba6f2e4b680dd499c3729f6afebde21fa539862b010f
[INFO] running `"docker" "start" "-a" "315d8c8de6821a368cf0ba6f2e4b680dd499c3729f6afebde21fa539862b010f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pietro-622a2ccccb92fd4c
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "315d8c8de6821a368cf0ba6f2e4b680dd499c3729f6afebde21fa539862b010f"`
[INFO] running `"docker" "rm" "-f" "315d8c8de6821a368cf0ba6f2e4b680dd499c3729f6afebde21fa539862b010f"`
[INFO] [stdout] 315d8c8de6821a368cf0ba6f2e4b680dd499c3729f6afebde21fa539862b010f