[INFO] updating cached repository kwebi/lisp-interpreter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kwebi/lisp-interpreter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kwebi/lisp-interpreter" "work/ex/beta-1.37-6/sources/1.36.0/gh/kwebi/lisp-interpreter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/kwebi/lisp-interpreter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kwebi/lisp-interpreter" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kwebi/lisp-interpreter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kwebi/lisp-interpreter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 91021717017cf3609630f4f3b860c7cf86cfb1db
[INFO] sha for GitHub repo kwebi/lisp-interpreter: 91021717017cf3609630f4f3b860c7cf86cfb1db
[INFO] validating manifest of kwebi/lisp-interpreter 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 kwebi/lisp-interpreter 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 kwebi/lisp-interpreter
[INFO] finished frobbing kwebi/lisp-interpreter
[INFO] frobbed toml for kwebi/lisp-interpreter written to work/ex/beta-1.37-6/sources/1.36.0/gh/kwebi/lisp-interpreter/Cargo.toml
[INFO] started frobbing kwebi/lisp-interpreter
[INFO] finished frobbing kwebi/lisp-interpreter
[INFO] frobbed toml for kwebi/lisp-interpreter written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kwebi/lisp-interpreter/Cargo.toml
[INFO] crate kwebi/lisp-interpreter 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 kwebi/lisp-interpreter 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-4/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/kwebi/lisp-interpreter:/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] 8850f225c447a59bd7f58abb2fdc00d93b1e3d7dba5ff476eb53aa9bdc367460
[INFO] running `"docker" "start" "-a" "8850f225c447a59bd7f58abb2fdc00d93b1e3d7dba5ff476eb53aa9bdc367460"`
[INFO] [stderr]    Compiling lisp-interpreter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     while true {
[INFO] [stderr]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(while_true)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |         stdout_handle.flush();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "8850f225c447a59bd7f58abb2fdc00d93b1e3d7dba5ff476eb53aa9bdc367460"`
[INFO] running `"docker" "rm" "-f" "8850f225c447a59bd7f58abb2fdc00d93b1e3d7dba5ff476eb53aa9bdc367460"`
[INFO] [stdout] 8850f225c447a59bd7f58abb2fdc00d93b1e3d7dba5ff476eb53aa9bdc367460
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/kwebi/lisp-interpreter:/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] bbe193bf9c589fbc3ca41d979beda57f9f3d2dbfba3e9559b2178b7386802354
[INFO] running `"docker" "start" "-a" "bbe193bf9c589fbc3ca41d979beda57f9f3d2dbfba3e9559b2178b7386802354"`
[INFO] [stderr]    Compiling lisp-interpreter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     while true {
[INFO] [stderr]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(while_true)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |         stdout_handle.flush();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "bbe193bf9c589fbc3ca41d979beda57f9f3d2dbfba3e9559b2178b7386802354"`
[INFO] running `"docker" "rm" "-f" "bbe193bf9c589fbc3ca41d979beda57f9f3d2dbfba3e9559b2178b7386802354"`
[INFO] [stdout] bbe193bf9c589fbc3ca41d979beda57f9f3d2dbfba3e9559b2178b7386802354
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/kwebi/lisp-interpreter:/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] 19b1968daae00d611868c15a4dd1c5a36005c97f282fb44867c25cf6051476bb
[INFO] running `"docker" "start" "-a" "19b1968daae00d611868c15a4dd1c5a36005c97f282fb44867c25cf6051476bb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lisp_interpreter-e2276532d771ce48
[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" "19b1968daae00d611868c15a4dd1c5a36005c97f282fb44867c25cf6051476bb"`
[INFO] running `"docker" "rm" "-f" "19b1968daae00d611868c15a4dd1c5a36005c97f282fb44867c25cf6051476bb"`
[INFO] [stdout] 19b1968daae00d611868c15a4dd1c5a36005c97f282fb44867c25cf6051476bb