[INFO] updating cached repository ladydraco/rust_markov
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ladydraco/rust_markov
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ladydraco/rust_markov" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/ladydraco/rust_markov"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/ladydraco/rust_markov'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ladydraco/rust_markov" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/ladydraco/rust_markov"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/ladydraco/rust_markov'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4473b91381d5cd634cb04afbf7239d90c8d6a14f
[INFO] sha for GitHub repo ladydraco/rust_markov: 4473b91381d5cd634cb04afbf7239d90c8d6a14f
[INFO] validating manifest of ladydraco/rust_markov on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ladydraco/rust_markov on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ladydraco/rust_markov
[INFO] finished frobbing ladydraco/rust_markov
[INFO] frobbed toml for ladydraco/rust_markov written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/ladydraco/rust_markov/Cargo.toml
[INFO] started frobbing ladydraco/rust_markov
[INFO] finished frobbing ladydraco/rust_markov
[INFO] frobbed toml for ladydraco/rust_markov written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/ladydraco/rust_markov/Cargo.toml
[INFO] crate ladydraco/rust_markov already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/ladydraco/rust_markov/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ladydraco/rust_markov against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-1/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/ladydraco/rust_markov:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4198795e74ff37e9b783869c50d6e0b27a2ceb4fa8382854f7f09b0e079cfd70
[INFO] running `"docker" "start" "-a" "4198795e74ff37e9b783869c50d6e0b27a2ceb4fa8382854f7f09b0e079cfd70"`
[INFO] [stderr]     Checking rust_markov v0.1.0 (/opt/crater/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: 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: 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] 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 0.87s
[INFO] running `"docker" "inspect" "4198795e74ff37e9b783869c50d6e0b27a2ceb4fa8382854f7f09b0e079cfd70"`
[INFO] running `"docker" "rm" "-f" "4198795e74ff37e9b783869c50d6e0b27a2ceb4fa8382854f7f09b0e079cfd70"`
[INFO] [stdout] 4198795e74ff37e9b783869c50d6e0b27a2ceb4fa8382854f7f09b0e079cfd70