Nov 29 22:50:29.093 INFO checking mariosangiorgio/rulox against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 22:50:29.094 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-3/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 29 22:50:29.360 INFO [stdout] 221905afbfa537b6affcb793526f0dc0124b69617a75ba0abf0653dff9b77fbc
Nov 29 22:50:29.368 INFO running `"docker" "start" "-a" "221905afbfa537b6affcb793526f0dc0124b69617a75ba0abf0653dff9b77fbc"`
Nov 29 22:50:29.940 INFO [stderr] usermod: no changes
Nov 29 22:50:30.100 INFO [stderr]     Checking wait-timeout v0.1.5
Nov 29 22:50:30.101 INFO [stderr]     Checking rand v0.5.5
Nov 29 22:50:30.103 INFO [stderr]    Compiling syn v0.15.14
Nov 29 22:50:33.252 INFO [stderr]     Checking tempfile v3.0.4
Nov 29 22:50:34.038 INFO [stderr]     Checking rusty-fork v0.2.1
Nov 29 22:50:34.725 INFO [stderr]     Checking proptest v0.8.7
Nov 29 22:50:41.137 INFO [stderr]    Compiling num-derive v0.2.3
Nov 29 22:50:49.069 INFO [stderr]     Checking rulox v0.1.0 (/source)
Nov 29 22:50:53.588 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:50:53.588 INFO [stderr]    --> src/treewalk/mod.rs:99:5
Nov 29 22:50:53.588 INFO [stderr]     |
Nov 29 22:50:53.588 INFO [stderr] 99  | /     proptest! {
Nov 29 22:50:53.588 INFO [stderr] 100 | |     #[test]
Nov 29 22:50:53.588 INFO [stderr] 101 | |     fn doesnt_crash(ref input in "\\PC*") {
Nov 29 22:50:53.588 INFO [stderr] 102 | |         let mut lox_vm = TreeWalkRuloxInterpreter::default();
Nov 29 22:50:53.588 INFO [stderr] 103 | |         lox_vm.run(input)
Nov 29 22:50:53.588 INFO [stderr] 104 | |     }
Nov 29 22:50:53.588 INFO [stderr] 105 | |     }
Nov 29 22:50:53.588 INFO [stderr]     | |_____^
Nov 29 22:50:53.588 INFO [stderr]     |
Nov 29 22:50:53.588 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 29 22:50:53.588 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:50:53.588 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 29 22:50:53.588 INFO [stderr] 
Nov 29 22:50:53.607 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:50:53.607 INFO [stderr]   --> src/vm/mod.rs:27:5
Nov 29 22:50:53.607 INFO [stderr]    |
Nov 29 22:50:53.607 INFO [stderr] 27 | /     proptest! {
Nov 29 22:50:53.607 INFO [stderr] 28 | |     #[test]
Nov 29 22:50:53.607 INFO [stderr] 29 | |     #[ignore]
Nov 29 22:50:53.607 INFO [stderr] 30 | |     fn doesnt_crash(ref input in "\\PC*") {
Nov 29 22:50:53.607 INFO [stderr] ...  |
Nov 29 22:50:53.607 INFO [stderr] 33 | |     }
Nov 29 22:50:53.607 INFO [stderr] 34 | |     }
Nov 29 22:50:53.607 INFO [stderr]    | |_____^
Nov 29 22:50:53.607 INFO [stderr]    |
Nov 29 22:50:53.607 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:50:53.607 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 29 22:50:53.607 INFO [stderr] 
Nov 29 22:50:53.644 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.68s
Nov 29 22:50:53.660 INFO [stderr] su: No module specific data is present
Nov 29 22:50:54.635 INFO running `"docker" "inspect" "221905afbfa537b6affcb793526f0dc0124b69617a75ba0abf0653dff9b77fbc"`
Nov 29 22:50:54.916 INFO running `"docker" "rm" "-f" "221905afbfa537b6affcb793526f0dc0124b69617a75ba0abf0653dff9b77fbc"`
Nov 29 22:50:55.283 INFO [stdout] 221905afbfa537b6affcb793526f0dc0124b69617a75ba0abf0653dff9b77fbc