[INFO] cloning repository https://github.com/RetroRick/snippet_generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RetroRick/snippet_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66e450076991c9bc2163bf73ee0c94df6c7a64f1
[INFO] testing RetroRick/snippet_generator against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RetroRick/snippet_generator on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RetroRick/snippet_generator
[INFO] finished tweaking git repo https://github.com/RetroRick/snippet_generator
[INFO] tweaked toml for git repo https://github.com/RetroRick/snippet_generator written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/RetroRick/snippet_generator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6388d4a7fe79f4881e55f2b5588e2b50538d1b48fdc4e5a025077080803758fd
[INFO] running `Command { std: "docker" "start" "-a" "6388d4a7fe79f4881e55f2b5588e2b50538d1b48fdc4e5a025077080803758fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6388d4a7fe79f4881e55f2b5588e2b50538d1b48fdc4e5a025077080803758fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6388d4a7fe79f4881e55f2b5588e2b50538d1b48fdc4e5a025077080803758fd", kill_on_drop: false }`
[INFO] [stdout] 6388d4a7fe79f4881e55f2b5588e2b50538d1b48fdc4e5a025077080803758fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a7d108a93c3adaf038b1f3a7ad0f357c67fc33e7c48bb5bfc82d5101e6e93d1
[INFO] running `Command { std: "docker" "start" "-a" "9a7d108a93c3adaf038b1f3a7ad0f357c67fc33e7c48bb5bfc82d5101e6e93d1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling snippet_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `LBracket`
[INFO] [stdout]  --> src/tokenizer.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     LBracket,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RBracket`
[INFO] [stdout]   --> src/tokenizer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     RBracket,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LSquareBracket`
[INFO] [stdout]   --> src/tokenizer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LSquareBracket,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RSquareBracket`
[INFO] [stdout]   --> src/tokenizer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RSquareBracket,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LParenthesis`
[INFO] [stdout]   --> src/tokenizer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     LParenthesis,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RParenthesis`
[INFO] [stdout]   --> src/tokenizer.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     RParenthesis,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Colon`
[INFO] [stdout]   --> src/tokenizer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Colon,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Hashtag`
[INFO] [stdout]   --> src/tokenizer.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Hashtag,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FSlash`
[INFO] [stdout]   --> src/tokenizer.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     FSlash,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Asterisk`
[INFO] [stdout]   --> src/tokenizer.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Asterisk,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Underscore`
[INFO] [stdout]   --> src/tokenizer.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Underscore,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `At`
[INFO] [stdout]   --> src/tokenizer.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     At
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ValidTokenMapper`
[INFO] [stdout]   --> src/tokenizer.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct ValidTokenMapper{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tokenizer.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn new() -> ValidTokenMapper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `validate_token`
[INFO] [stdout]   --> src/tokenizer.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn validate_token(ch: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.44s
[INFO] running `Command { std: "docker" "inspect" "9a7d108a93c3adaf038b1f3a7ad0f357c67fc33e7c48bb5bfc82d5101e6e93d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a7d108a93c3adaf038b1f3a7ad0f357c67fc33e7c48bb5bfc82d5101e6e93d1", kill_on_drop: false }`
[INFO] [stdout] 9a7d108a93c3adaf038b1f3a7ad0f357c67fc33e7c48bb5bfc82d5101e6e93d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33207597b1b953de89de3efc8ce62a899f58faef41e40b4eb882f90ebac20804
[INFO] running `Command { std: "docker" "start" "-a" "33207597b1b953de89de3efc8ce62a899f58faef41e40b4eb882f90ebac20804", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling snippet_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `LBracket`
[INFO] [stdout]  --> src/tokenizer.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     LBracket,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RBracket`
[INFO] [stdout]   --> src/tokenizer.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     RBracket,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LSquareBracket`
[INFO] [stdout]   --> src/tokenizer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LSquareBracket,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RSquareBracket`
[INFO] [stdout]   --> src/tokenizer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RSquareBracket,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LParenthesis`
[INFO] [stdout]   --> src/tokenizer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     LParenthesis,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RParenthesis`
[INFO] [stdout]   --> src/tokenizer.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     RParenthesis,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Colon`
[INFO] [stdout]   --> src/tokenizer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Colon,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Hashtag`
[INFO] [stdout]   --> src/tokenizer.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Hashtag,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FSlash`
[INFO] [stdout]   --> src/tokenizer.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     FSlash,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Asterisk`
[INFO] [stdout]   --> src/tokenizer.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Asterisk,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Underscore`
[INFO] [stdout]   --> src/tokenizer.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Underscore,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `At`
[INFO] [stdout]   --> src/tokenizer.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     At
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ValidTokenMapper`
[INFO] [stdout]   --> src/tokenizer.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct ValidTokenMapper{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tokenizer.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn new() -> ValidTokenMapper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `validate_token`
[INFO] [stdout]   --> src/tokenizer.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn validate_token(ch: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "33207597b1b953de89de3efc8ce62a899f58faef41e40b4eb882f90ebac20804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33207597b1b953de89de3efc8ce62a899f58faef41e40b4eb882f90ebac20804", kill_on_drop: false }`
[INFO] [stdout] 33207597b1b953de89de3efc8ce62a899f58faef41e40b4eb882f90ebac20804
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e874d6c9f0b0f766f80671d641f2645cf7e31a3188782b02b6e66bccd740b3a3
[INFO] running `Command { std: "docker" "start" "-a" "e874d6c9f0b0f766f80671d641f2645cf7e31a3188782b02b6e66bccd740b3a3", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `LBracket`
[INFO] [stderr]  --> src/tokenizer.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     LBracket,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RBracket`
[INFO] [stderr]   --> src/tokenizer.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     RBracket,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LSquareBracket`
[INFO] [stderr]   --> src/tokenizer.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     LSquareBracket,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RSquareBracket`
[INFO] [stderr]   --> src/tokenizer.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     RSquareBracket,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LParenthesis`
[INFO] [stderr]   --> src/tokenizer.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     LParenthesis,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RParenthesis`
[INFO] [stderr]   --> src/tokenizer.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     RParenthesis,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Colon`
[INFO] [stderr]   --> src/tokenizer.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Colon,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Hashtag`
[INFO] [stderr]   --> src/tokenizer.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Hashtag,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FSlash`
[INFO] [stderr]   --> src/tokenizer.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     FSlash,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Asterisk`
[INFO] [stderr]   --> src/tokenizer.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     Asterisk,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Underscore`
[INFO] [stderr]   --> src/tokenizer.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Underscore,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `At`
[INFO] [stderr]   --> src/tokenizer.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     At
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ValidTokenMapper`
[INFO] [stderr]   --> src/tokenizer.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | struct ValidTokenMapper{
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/tokenizer.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn new() -> ValidTokenMapper {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `validate_token`
[INFO] [stderr]   --> src/tokenizer.rs:50:4
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn validate_token(ch: &String) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `snippet_generator` (bin "snippet_generator" test) generated 15 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snippet_generator-0984d3400218312a)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e874d6c9f0b0f766f80671d641f2645cf7e31a3188782b02b6e66bccd740b3a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e874d6c9f0b0f766f80671d641f2645cf7e31a3188782b02b6e66bccd740b3a3", kill_on_drop: false }`
[INFO] [stdout] e874d6c9f0b0f766f80671d641f2645cf7e31a3188782b02b6e66bccd740b3a3