[INFO] crate scule 1.0.0 is already in cache
[INFO] extracting crate scule 1.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/scule/1.0.0
[INFO] extracting crate scule 1.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/scule/1.0.0
[INFO] validating manifest of scule-1.0.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of scule-1.0.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing scule-1.0.0
[INFO] finished frobbing scule-1.0.0
[INFO] frobbed toml for scule-1.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/scule/1.0.0/Cargo.toml
[INFO] started frobbing scule-1.0.0
[INFO] finished frobbing scule-1.0.0
[INFO] frobbed toml for scule-1.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/scule/1.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing scule-1.0.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/scule/1.0.0:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 163ff0e94f8738ffa23e3f05c5306cb1d4ad74d3332d1adbd8c5e3a71d194997
[INFO] running `"docker" "start" "-a" "163ff0e94f8738ffa23e3f05c5306cb1d4ad74d3332d1adbd8c5e3a71d194997"`
[INFO] [stderr]    Compiling scule v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/main.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 |         Err(err) => "",
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:108:12
[INFO] [stderr]     |
[INFO] [stderr] 108 |         Ok(x) => bytes, 
[INFO] [stderr]     |            ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `"docker" "inspect" "163ff0e94f8738ffa23e3f05c5306cb1d4ad74d3332d1adbd8c5e3a71d194997"`
[INFO] running `"docker" "rm" "-f" "163ff0e94f8738ffa23e3f05c5306cb1d4ad74d3332d1adbd8c5e3a71d194997"`
[INFO] [stdout] 163ff0e94f8738ffa23e3f05c5306cb1d4ad74d3332d1adbd8c5e3a71d194997
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/scule/1.0.0:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6d14cffa8f303e503e0468e9a763e0b14bc7b01c95c210541242ca1a1741e57d
[INFO] running `"docker" "start" "-a" "6d14cffa8f303e503e0468e9a763e0b14bc7b01c95c210541242ca1a1741e57d"`
[INFO] [stderr]    Compiling scule v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::process::Command`
[INFO] [stderr]    --> src/main.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |     use std::process::Command; 
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]    --> src/main.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |     use std::str; 
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/main.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 |         Err(err) => "",
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:108:12
[INFO] [stderr]     |
[INFO] [stderr] 108 |         Ok(x) => bytes, 
[INFO] [stderr]     |            ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "6d14cffa8f303e503e0468e9a763e0b14bc7b01c95c210541242ca1a1741e57d"`
[INFO] running `"docker" "rm" "-f" "6d14cffa8f303e503e0468e9a763e0b14bc7b01c95c210541242ca1a1741e57d"`
[INFO] [stdout] 6d14cffa8f303e503e0468e9a763e0b14bc7b01c95c210541242ca1a1741e57d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/scule/1.0.0:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 61026161c9d87db5182a6abfc74e6463551dda0aa89952a80e3cedd0bdae75a9
[INFO] running `"docker" "start" "-a" "61026161c9d87db5182a6abfc74e6463551dda0aa89952a80e3cedd0bdae75a9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/scule-ed9460791230d8bb
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::testConvertCaseASCII ... ok
[INFO] [stdout] test tests::testConvertCaseUnicode ... ok
[INFO] [stdout] test tests::testIsPrintableASCII ... ok
[INFO] [stdout] test tests::testOpenFile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "61026161c9d87db5182a6abfc74e6463551dda0aa89952a80e3cedd0bdae75a9"`
[INFO] running `"docker" "rm" "-f" "61026161c9d87db5182a6abfc74e6463551dda0aa89952a80e3cedd0bdae75a9"`
[INFO] [stdout] 61026161c9d87db5182a6abfc74e6463551dda0aa89952a80e3cedd0bdae75a9