[INFO] updating cached repository https://github.com/ladydraco/rust_markov
[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] 4473b91381d5cd634cb04afbf7239d90c8d6a14f
[INFO] testing ladydraco/rust_markov against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fladydraco%2Frust_markov" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ladydraco/rust_markov 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/ladydraco/rust_markov
[INFO] finished tweaking git repo https://github.com/ladydraco/rust_markov
[INFO] tweaked toml for git repo https://github.com/ladydraco/rust_markov written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ladydraco/rust_markov 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] [stderr] error: the lock file /big/crater/work/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] 938a85b2bf6e80635a00efcd93f6e390cd2a754cfa69ff3d079646121a078b7b
[INFO] running `"docker" "start" "-a" "938a85b2bf6e80635a00efcd93f6e390cd2a754cfa69ff3d079646121a078b7b"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_markov v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `rand::random`
[INFO] [stderr]  --> src/generate_text.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::random;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/form_watcher.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use std::collections::HashSet;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pair2` is never read
[INFO] [stderr]    --> src/main.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |     let mut pair2: (usize, usize) = (0, 0);
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `char_choice`
[INFO] [stderr]    --> src/generate_text.rs:119:14
[INFO] [stderr]     |
[INFO] [stderr] 119 |         for (char_choice, count) in choice_stats.options.iter() {
[INFO] [stderr]     |              ^^^^^^^^^^^ help: consider prefixing with an underscore: `_char_choice`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/generate_text.rs:119:27
[INFO] [stderr]     |
[INFO] [stderr] 119 |         for (char_choice, count) in choice_stats.options.iter() {
[INFO] [stderr]     |                           ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `output_amount`
[INFO] [stderr]   --> src/generate_text.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     output_amount: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `use_html`
[INFO] [stderr]   --> src/generate_text.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     use_html: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `distortion_factor`
[INFO] [stderr]   --> src/generate_text.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     distortion_factor: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.57s
[INFO] running `"docker" "inspect" "938a85b2bf6e80635a00efcd93f6e390cd2a754cfa69ff3d079646121a078b7b"`
[INFO] running `"docker" "rm" "-f" "938a85b2bf6e80635a00efcd93f6e390cd2a754cfa69ff3d079646121a078b7b"`
[INFO] [stdout] 938a85b2bf6e80635a00efcd93f6e390cd2a754cfa69ff3d079646121a078b7b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] 7196afb1bcab1fb1555f99c9e6cda231b08f908a3a8be0281e311c467b74f37e
[INFO] running `"docker" "start" "-a" "7196afb1bcab1fb1555f99c9e6cda231b08f908a3a8be0281e311c467b74f37e"`
[INFO] [stderr]    Compiling rust_markov v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `rand::random`
[INFO] [stderr]  --> src/generate_text.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::random;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/form_watcher.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use std::collections::HashSet;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pair2` is never read
[INFO] [stderr]    --> src/main.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |     let mut pair2: (usize, usize) = (0, 0);
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `char_choice`
[INFO] [stderr]    --> src/generate_text.rs:119:14
[INFO] [stderr]     |
[INFO] [stderr] 119 |         for (char_choice, count) in choice_stats.options.iter() {
[INFO] [stderr]     |              ^^^^^^^^^^^ help: consider prefixing with an underscore: `_char_choice`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/generate_text.rs:119:27
[INFO] [stderr]     |
[INFO] [stderr] 119 |         for (char_choice, count) in choice_stats.options.iter() {
[INFO] [stderr]     |                           ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `output_amount`
[INFO] [stderr]   --> src/generate_text.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     output_amount: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `use_html`
[INFO] [stderr]   --> src/generate_text.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     use_html: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `distortion_factor`
[INFO] [stderr]   --> src/generate_text.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     distortion_factor: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "7196afb1bcab1fb1555f99c9e6cda231b08f908a3a8be0281e311c467b74f37e"`
[INFO] running `"docker" "rm" "-f" "7196afb1bcab1fb1555f99c9e6cda231b08f908a3a8be0281e311c467b74f37e"`
[INFO] [stdout] 7196afb1bcab1fb1555f99c9e6cda231b08f908a3a8be0281e311c467b74f37e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] a134bb16ebe3ba2a5dd0ab324b9a4bfd15bc9a5039da3321cf3d7bfebc1bf914
[INFO] running `"docker" "start" "-a" "a134bb16ebe3ba2a5dd0ab324b9a4bfd15bc9a5039da3321cf3d7bfebc1bf914"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_markov-cf8b7e59b4648e2f
[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" "a134bb16ebe3ba2a5dd0ab324b9a4bfd15bc9a5039da3321cf3d7bfebc1bf914"`
[INFO] running `"docker" "rm" "-f" "a134bb16ebe3ba2a5dd0ab324b9a4bfd15bc9a5039da3321cf3d7bfebc1bf914"`
[INFO] [stdout] a134bb16ebe3ba2a5dd0ab324b9a4bfd15bc9a5039da3321cf3d7bfebc1bf914