[INFO] crate chewy 2.0.0 is already in cache
[INFO] extracting crate chewy 2.0.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/chewy/2.0.0
[INFO] extracting crate chewy 2.0.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/chewy/2.0.0
[INFO] validating manifest of chewy-2.0.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chewy-2.0.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chewy-2.0.0
[INFO] finished frobbing chewy-2.0.0
[INFO] frobbed toml for chewy-2.0.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/chewy/2.0.0/Cargo.toml
[INFO] started frobbing chewy-2.0.0
[INFO] finished frobbing chewy-2.0.0
[INFO] frobbed toml for chewy-2.0.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/chewy/2.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing chewy-2.0.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/chewy/2.0.0:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 25df7e27622e958c101bd1e79968f03ab211e977dfd51e9801006ef7620f285d
[INFO] running `"docker" "start" "-a" "25df7e27622e958c101bd1e79968f03ab211e977dfd51e9801006ef7620f285d"`
[INFO] [stderr]    Compiling chewy v2.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `stack`
[INFO] [stderr]   --> src/main.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn execute1(stack: &mut Vec<i128>, op: String, b: i128) {
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_stack`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "25df7e27622e958c101bd1e79968f03ab211e977dfd51e9801006ef7620f285d"`
[INFO] running `"docker" "rm" "-f" "25df7e27622e958c101bd1e79968f03ab211e977dfd51e9801006ef7620f285d"`
[INFO] [stdout] 25df7e27622e958c101bd1e79968f03ab211e977dfd51e9801006ef7620f285d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/chewy/2.0.0:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 716ef2f1a9bdc1f8aff1f5932b72ca3c0c101de6f67561c3225cbf6866f5c8fe
[INFO] running `"docker" "start" "-a" "716ef2f1a9bdc1f8aff1f5932b72ca3c0c101de6f67561c3225cbf6866f5c8fe"`
[INFO] [stderr]    Compiling chewy v2.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `stack`
[INFO] [stderr]   --> src/main.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn execute1(stack: &mut Vec<i128>, op: String, b: i128) {
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_stack`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "716ef2f1a9bdc1f8aff1f5932b72ca3c0c101de6f67561c3225cbf6866f5c8fe"`
[INFO] running `"docker" "rm" "-f" "716ef2f1a9bdc1f8aff1f5932b72ca3c0c101de6f67561c3225cbf6866f5c8fe"`
[INFO] [stdout] 716ef2f1a9bdc1f8aff1f5932b72ca3c0c101de6f67561c3225cbf6866f5c8fe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/chewy/2.0.0:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 05d34ae7344f02155cced511fbfeb7b1bd66d8d254406e789ddd1dbc0bbe2485
[INFO] running `"docker" "start" "-a" "05d34ae7344f02155cced511fbfeb7b1bd66d8d254406e789ddd1dbc0bbe2485"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chewy-75cb54be129b8ce7
[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" "05d34ae7344f02155cced511fbfeb7b1bd66d8d254406e789ddd1dbc0bbe2485"`
[INFO] running `"docker" "rm" "-f" "05d34ae7344f02155cced511fbfeb7b1bd66d8d254406e789ddd1dbc0bbe2485"`
[INFO] [stdout] 05d34ae7344f02155cced511fbfeb7b1bd66d8d254406e789ddd1dbc0bbe2485