[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] checking RetroRick/snippet_generator against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator" "/workspace/builds/worker-91/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-91/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RetroRick/snippet_generator on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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-91/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90eead71138a874290c4652324fd8573ab8e08e7fb840e5cf1fe16473462e291
[INFO] running `Command { std: "docker" "start" "-a" "90eead71138a874290c4652324fd8573ab8e08e7fb840e5cf1fe16473462e291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90eead71138a874290c4652324fd8573ab8e08e7fb840e5cf1fe16473462e291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90eead71138a874290c4652324fd8573ab8e08e7fb840e5cf1fe16473462e291", kill_on_drop: false }`
[INFO] [stdout] 90eead71138a874290c4652324fd8573ab8e08e7fb840e5cf1fe16473462e291
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf40e3c93fd922db8dc5c4ccfc71625b01e7812e59c243532031cdf48349d88f
[INFO] running `Command { std: "docker" "start" "-a" "cf40e3c93fd922db8dc5c4ccfc71625b01e7812e59c243532031cdf48349d88f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking 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: 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 9.59s
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cf40e3c93fd922db8dc5c4ccfc71625b01e7812e59c243532031cdf48349d88f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf40e3c93fd922db8dc5c4ccfc71625b01e7812e59c243532031cdf48349d88f", kill_on_drop: false }`
[INFO] [stdout] cf40e3c93fd922db8dc5c4ccfc71625b01e7812e59c243532031cdf48349d88f