[INFO] updating cached repository corndog/pe11_20
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/corndog/pe11_20
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/corndog/pe11_20" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/corndog/pe11_20"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/corndog/pe11_20'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/corndog/pe11_20" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/corndog/pe11_20"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/corndog/pe11_20'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4171255bdb0b927a544c9c82eb0b0a9db5e509d2
[INFO] sha for GitHub repo corndog/pe11_20: 4171255bdb0b927a544c9c82eb0b0a9db5e509d2
[INFO] validating manifest of corndog/pe11_20 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 corndog/pe11_20 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 corndog/pe11_20
[INFO] finished frobbing corndog/pe11_20
[INFO] frobbed toml for corndog/pe11_20 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/corndog/pe11_20/Cargo.toml
[INFO] started frobbing corndog/pe11_20
[INFO] finished frobbing corndog/pe11_20
[INFO] frobbed toml for corndog/pe11_20 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/corndog/pe11_20/Cargo.toml
[INFO] crate corndog/pe11_20 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 corndog/pe11_20 against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/corndog/pe11_20:/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] 238f188f7e57635d18c56c52da081d7de500d59f8ef780baa60787e471a7dc16
[INFO] running `"docker" "start" "-a" "238f188f7e57635d18c56c52da081d7de500d59f8ef780baa60787e471a7dc16"`
[INFO] [stderr]    Compiling num-bigint v0.1.40
[INFO] [stderr]    Compiling num-rational v0.1.39
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling stopwatch v0.0.7
[INFO] [stderr]    Compiling pe2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `sw`
[INFO] [stderr]    --> src/main.rs:358:9
[INFO] [stderr]     |
[INFO] [stderr] 358 |     let sw = Stopwatch::start_new();
[INFO] [stderr]     |         ^^ help: consider prefixing with an underscore: `_sw`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.23s
[INFO] running `"docker" "inspect" "238f188f7e57635d18c56c52da081d7de500d59f8ef780baa60787e471a7dc16"`
[INFO] running `"docker" "rm" "-f" "238f188f7e57635d18c56c52da081d7de500d59f8ef780baa60787e471a7dc16"`
[INFO] [stdout] 238f188f7e57635d18c56c52da081d7de500d59f8ef780baa60787e471a7dc16
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/corndog/pe11_20:/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] 2c3c6aa470ad3ca5b88ab7584096e8de16b9f6e35a0365a12edb53a849ea44b7
[INFO] running `"docker" "start" "-a" "2c3c6aa470ad3ca5b88ab7584096e8de16b9f6e35a0365a12edb53a849ea44b7"`
[INFO] [stderr]    Compiling pe2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `sw`
[INFO] [stderr]    --> src/main.rs:358:9
[INFO] [stderr]     |
[INFO] [stderr] 358 |     let sw = Stopwatch::start_new();
[INFO] [stderr]     |         ^^ help: consider prefixing with an underscore: `_sw`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "2c3c6aa470ad3ca5b88ab7584096e8de16b9f6e35a0365a12edb53a849ea44b7"`
[INFO] running `"docker" "rm" "-f" "2c3c6aa470ad3ca5b88ab7584096e8de16b9f6e35a0365a12edb53a849ea44b7"`
[INFO] [stdout] 2c3c6aa470ad3ca5b88ab7584096e8de16b9f6e35a0365a12edb53a849ea44b7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/corndog/pe11_20:/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] 9935e4111060d2456f7f0bbb374cccc29b71fba1d4bdc402b7af654defb0218e
[INFO] running `"docker" "start" "-a" "9935e4111060d2456f7f0bbb374cccc29b71fba1d4bdc402b7af654defb0218e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pe2-4b350b944709e361
[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" "9935e4111060d2456f7f0bbb374cccc29b71fba1d4bdc402b7af654defb0218e"`
[INFO] running `"docker" "rm" "-f" "9935e4111060d2456f7f0bbb374cccc29b71fba1d4bdc402b7af654defb0218e"`
[INFO] [stdout] 9935e4111060d2456f7f0bbb374cccc29b71fba1d4bdc402b7af654defb0218e