[INFO] updating cached repository https://github.com/santifa/rs-examples
[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] ce37b7f73eec596b5d70dc29cdaa7ed172891db0
[INFO] testing santifa/rs-examples against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsantifa%2Frs-examples" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/santifa/rs-examples 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/santifa/rs-examples
[INFO] finished tweaking git repo https://github.com/santifa/rs-examples
[INFO] tweaked toml for git repo https://github.com/santifa/rs-examples written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/santifa/rs-examples 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] 75009a4d6ba69859d14ce9d7f40d350f370d364b8eefd79ed4825edbafee4960
[INFO] running `"docker" "start" "-a" "75009a4d6ba69859d14ce9d7f40d350f370d364b8eefd79ed4825edbafee4960"`
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling num v0.1.41
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling flate2 v1.0.1
[INFO] [stderr]    Compiling rs-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/bayes.rs:96:21
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 let mut mean = filtered
[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/bin/bayes.rs:101:21
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 let mut variance = filtered.iter().fold(0., |acc, &x| {
[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/bin/fb.rs:241:21
[INFO] [stderr]     |
[INFO] [stderr] 241 |                 let mut glyph = &glyphs[time_bytes[s] as usize]; // use char code to index glyph
[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]     Finished dev [unoptimized + debuginfo] target(s) in 4.16s
[INFO] running `"docker" "inspect" "75009a4d6ba69859d14ce9d7f40d350f370d364b8eefd79ed4825edbafee4960"`
[INFO] running `"docker" "rm" "-f" "75009a4d6ba69859d14ce9d7f40d350f370d364b8eefd79ed4825edbafee4960"`
[INFO] [stdout] 75009a4d6ba69859d14ce9d7f40d350f370d364b8eefd79ed4825edbafee4960
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] cf47a6bf53d38576d761475cbfb2ac3e28173ab3df7ee115a0df791412ccf076
[INFO] running `"docker" "start" "-a" "cf47a6bf53d38576d761475cbfb2ac3e28173ab3df7ee115a0df791412ccf076"`
[INFO] [stderr]    Compiling rs-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/bayes.rs:96:21
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 let mut mean = filtered
[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/bin/bayes.rs:101:21
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 let mut variance = filtered.iter().fold(0., |acc, &x| {
[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/bin/fb.rs:241:21
[INFO] [stderr]     |
[INFO] [stderr] 241 |                 let mut glyph = &glyphs[time_bytes[s] as usize]; // use char code to index glyph
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "cf47a6bf53d38576d761475cbfb2ac3e28173ab3df7ee115a0df791412ccf076"`
[INFO] running `"docker" "rm" "-f" "cf47a6bf53d38576d761475cbfb2ac3e28173ab3df7ee115a0df791412ccf076"`
[INFO] [stdout] cf47a6bf53d38576d761475cbfb2ac3e28173ab3df7ee115a0df791412ccf076
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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"`
[INFO] [stdout] 9cd82fac187489be4483f01a87976c5b39330dd1a1cc18b40eed0ec3b7a709fd
[INFO] running `"docker" "start" "-a" "9cd82fac187489be4483f01a87976c5b39330dd1a1cc18b40eed0ec3b7a709fd"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bayes-372c623c083c659a
[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/rustwide/target/debug/deps/fb-35699c1aced611ff
[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/rustwide/target/debug/deps/type-9f974210318eec2e
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::valid_judgement ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9cd82fac187489be4483f01a87976c5b39330dd1a1cc18b40eed0ec3b7a709fd"`
[INFO] running `"docker" "rm" "-f" "9cd82fac187489be4483f01a87976c5b39330dd1a1cc18b40eed0ec3b7a709fd"`
[INFO] [stdout] 9cd82fac187489be4483f01a87976c5b39330dd1a1cc18b40eed0ec3b7a709fd