[INFO] updating cached repository https://github.com/anurse/warthog
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9c7b6c2ad83616605e07a148aa7cb797d13232ed
[INFO] testing anurse/warthog against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanurse%2Fwarthog" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anurse/warthog on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/anurse/warthog
[INFO] finished tweaking git repo https://github.com/anurse/warthog
[INFO] tweaked toml for git repo https://github.com/anurse/warthog written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/anurse/warthog already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 53dc8f6785559b700a24f6f9b56236fd117bd67f642ce48a6d0f75be50f8bac6
[INFO] running `"docker" "start" "-a" "53dc8f6785559b700a24f6f9b56236fd117bd67f642ce48a6d0f75be50f8bac6"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling leb128 v0.2.3
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling csv v1.0.2
[INFO] [stderr]    Compiling warthog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> build.rs:135:76
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let input_path = Path::new(&manifest_dir).join("instructions.csv");;
[INFO] [stderr]     |                                                                            ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/sparse_vec.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 let mut item = factory(index);
[INFO] [stderr]    |                     ----^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hosting/host.rs:273:17
[INFO] [stderr]     |
[INFO] [stderr] 273 |             let mut mem = mem_inst.memory();
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/module/module_names.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |             let mut f = funcs.get_or_add(ind_name.index(), |_| FuncNames::new());
[INFO] [stderr]    |                 ----^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.92s
[INFO] running `"docker" "inspect" "53dc8f6785559b700a24f6f9b56236fd117bd67f642ce48a6d0f75be50f8bac6"`
[INFO] running `"docker" "rm" "-f" "53dc8f6785559b700a24f6f9b56236fd117bd67f642ce48a6d0f75be50f8bac6"`
[INFO] [stdout] 53dc8f6785559b700a24f6f9b56236fd117bd67f642ce48a6d0f75be50f8bac6
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 61d4b2d0c9dad673914d1ccf88ab17fb00182826c73e9fab4520fa0022f002bd
[INFO] running `"docker" "start" "-a" "61d4b2d0c9dad673914d1ccf88ab17fb00182826c73e9fab4520fa0022f002bd"`
[INFO] [stderr]    Compiling warthog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0583]: file not found for module `spec`
[INFO] [stderr]   --> tests/spec_tests.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | mod spec;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: name the file either spec.rs or spec/mod.rs inside the directory "tests"
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0583`.
[INFO] [stderr] error: could not compile `warthog`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/sparse_vec.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 let mut item = factory(index);
[INFO] [stderr]    |                     ----^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hosting/host.rs:273:17
[INFO] [stderr]     |
[INFO] [stderr] 273 |             let mut mem = mem_inst.memory();
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/module/module_names.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |             let mut f = funcs.get_or_add(ind_name.index(), |_| FuncNames::new());
[INFO] [stderr]    |                 ----^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "61d4b2d0c9dad673914d1ccf88ab17fb00182826c73e9fab4520fa0022f002bd"`
[INFO] running `"docker" "rm" "-f" "61d4b2d0c9dad673914d1ccf88ab17fb00182826c73e9fab4520fa0022f002bd"`
[INFO] [stdout] 61d4b2d0c9dad673914d1ccf88ab17fb00182826c73e9fab4520fa0022f002bd