[INFO] updating cached repository yurrriq/rust-in-action
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yurrriq/rust-in-action
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yurrriq/rust-in-action" "work/ex/beta-1.37-6/sources/1.36.0/gh/yurrriq/rust-in-action"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/yurrriq/rust-in-action'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yurrriq/rust-in-action" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yurrriq/rust-in-action"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yurrriq/rust-in-action'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b972d1bc6b8409c446ff7310117b96eabbf52cd8
[INFO] sha for GitHub repo yurrriq/rust-in-action: b972d1bc6b8409c446ff7310117b96eabbf52cd8
[INFO] validating manifest of yurrriq/rust-in-action 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 yurrriq/rust-in-action 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 yurrriq/rust-in-action
[INFO] finished frobbing yurrriq/rust-in-action
[INFO] frobbed toml for yurrriq/rust-in-action written to work/ex/beta-1.37-6/sources/1.36.0/gh/yurrriq/rust-in-action/Cargo.toml
[INFO] started frobbing yurrriq/rust-in-action
[INFO] finished frobbing yurrriq/rust-in-action
[INFO] frobbed toml for yurrriq/rust-in-action written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yurrriq/rust-in-action/Cargo.toml
[INFO] crate yurrriq/rust-in-action already has a lockfile, it will not be regenerated
[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 yurrriq/rust-in-action against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yurrriq/rust-in-action:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 63dfe1202e78cd199d7da1808a43e4e005d36d25fbf573e31698fa0f60c729fb
[INFO] running `"docker" "start" "-a" "63dfe1202e78cd199d7da1808a43e4e005d36d25fbf573e31698fa0f60c729fb"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling rust-in-action v0.3.20 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `sat_a`
[INFO] [stderr]   --> src/bin/ch4-check-sat.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let sat_a = check_status(sat_a);
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_sat_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sat_a`
[INFO] [stderr]   --> src/bin/ch4-check-sats.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let sat_a = check_status(sat_a);
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_sat_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.10s
[INFO] running `"docker" "inspect" "63dfe1202e78cd199d7da1808a43e4e005d36d25fbf573e31698fa0f60c729fb"`
[INFO] running `"docker" "rm" "-f" "63dfe1202e78cd199d7da1808a43e4e005d36d25fbf573e31698fa0f60c729fb"`
[INFO] [stdout] 63dfe1202e78cd199d7da1808a43e4e005d36d25fbf573e31698fa0f60c729fb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yurrriq/rust-in-action:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 582a0051b124ec341176ee5e51763152e3c6ea14fe992c574358bc64b1381f96
[INFO] running `"docker" "start" "-a" "582a0051b124ec341176ee5e51763152e3c6ea14fe992c574358bc64b1381f96"`
[INFO] [stderr]    Compiling rust-in-action v0.3.20 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `sat_a`
[INFO] [stderr]   --> src/bin/ch4-check-sat.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let sat_a = check_status(sat_a);
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_sat_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sat_a`
[INFO] [stderr]   --> src/bin/ch4-check-sats.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let sat_a = check_status(sat_a);
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_sat_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `"docker" "inspect" "582a0051b124ec341176ee5e51763152e3c6ea14fe992c574358bc64b1381f96"`
[INFO] running `"docker" "rm" "-f" "582a0051b124ec341176ee5e51763152e3c6ea14fe992c574358bc64b1381f96"`
[INFO] [stdout] 582a0051b124ec341176ee5e51763152e3c6ea14fe992c574358bc64b1381f96
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yurrriq/rust-in-action:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 9c82cb2ccec3c008bd97899af8eabf37bb1f5fa8bbe895838a041768ef89c727
[INFO] running `"docker" "start" "-a" "9c82cb2ccec3c008bd97899af8eabf37bb1f5fa8bbe895838a041768ef89c727"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch2_first_steps-7e4230e61ef388bc
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch2_generic_with_traits-5f9cb5f2710e828c
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch2_introducing_vec-cd2a4c1aa11919a6
[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] [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] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch2_match_needles-3dec3b1110b13d00
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch2_needle_in_haystack-a79c5dcb80e0d002
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch2_non_base2-7c984c1342dda60d
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [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] [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] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch2_searching_with_regex-40ad09547b80dc16
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch2_simple_with_enumerate-2d2c9f226bcfa968
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch2_traversing_arrays-43bfb19ccfdc6bea
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [stderr]      Running /opt/crater/target/debug/deps/ch3_mock_files-64ca179c24324030
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch4_check_sat-eb7cee5d1105786e
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch4_check_sats-453b9aaa65338a97
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ch4_sat_mailbox-708ba0c0adb05e1d
[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] [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] [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] [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] [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" "9c82cb2ccec3c008bd97899af8eabf37bb1f5fa8bbe895838a041768ef89c727"`
[INFO] running `"docker" "rm" "-f" "9c82cb2ccec3c008bd97899af8eabf37bb1f5fa8bbe895838a041768ef89c727"`
[INFO] [stdout] 9c82cb2ccec3c008bd97899af8eabf37bb1f5fa8bbe895838a041768ef89c727