[INFO] cloning repository https://github.com/fahdfady/rslint
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fahdfady/rslint" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffahdfady%2Frslint", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffahdfady%2Frslint'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4ec84fbee29f84de90a572b451ce00293ff3050
[INFO] checking fahdfady/rslint/c4ec84fbee29f84de90a572b451ce00293ff3050 against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffahdfady%2Frslint" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fahdfady/rslint on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fahdfady/rslint
[INFO] finished tweaking git repo https://github.com/fahdfady/rslint
[INFO] tweaked toml for git repo https://github.com/fahdfady/rslint written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/fahdfady/rslint already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21c267fc0602d6083bbdd3a7bf1bcdcf29cd0d7db2e10e1f0d49d4e974f56477
[INFO] running `Command { std: "docker" "start" "-a" "21c267fc0602d6083bbdd3a7bf1bcdcf29cd0d7db2e10e1f0d49d4e974f56477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21c267fc0602d6083bbdd3a7bf1bcdcf29cd0d7db2e10e1f0d49d4e974f56477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21c267fc0602d6083bbdd3a7bf1bcdcf29cd0d7db2e10e1f0d49d4e974f56477", kill_on_drop: false }`
[INFO] [stdout] 21c267fc0602d6083bbdd3a7bf1bcdcf29cd0d7db2e10e1f0d49d4e974f56477
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80ed0d4d5ce4a82246355b8aaa0eaa47d0d48eef6519a37b0bcb74b80f0047ef
[INFO] running `Command { std: "docker" "start" "-a" "80ed0d4d5ce4a82246355b8aaa0eaa47d0d48eef6519a37b0bcb74b80f0047ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
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[INFO] [stderr]    Compiling libc v0.2.171
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[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
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[INFO] [stderr]     Checking utf16_iter v1.0.5
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[INFO] [stderr]    Compiling serde v1.0.219
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[INFO] [stderr]     Checking tokio v1.44.1
[INFO] [stderr]     Checking pin-project v1.1.10
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[INFO] [stderr]     Checking icu_properties v1.5.1
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[INFO] [stderr]     Checking lsp-types v0.94.1
[INFO] [stderr]     Checking tower-lsp v0.20.0
[INFO] [stderr]     Checking rslint v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `DiagnosticSeverity` is never used
[INFO] [stdout]  --> src/main.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum DiagnosticSeverity {
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LintRule` is never constructed
[INFO] [stdout]   --> src/main.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct LintRule {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_lint_rules` is never used
[INFO] [stdout]   --> src/main.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Backend {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |     fn get_lint_rules(&self) -> Vec<LintRule> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DiagnosticSeverity` is never used
[INFO] [stdout]  --> src/main.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum DiagnosticSeverity {
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LintRule` is never constructed
[INFO] [stdout]   --> src/main.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct LintRule {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_lint_rules` is never used
[INFO] [stdout]   --> src/main.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Backend {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |     fn get_lint_rules(&self) -> Vec<LintRule> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.40s
[INFO] running `Command { std: "docker" "inspect" "80ed0d4d5ce4a82246355b8aaa0eaa47d0d48eef6519a37b0bcb74b80f0047ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80ed0d4d5ce4a82246355b8aaa0eaa47d0d48eef6519a37b0bcb74b80f0047ef", kill_on_drop: false }`
[INFO] [stdout] 80ed0d4d5ce4a82246355b8aaa0eaa47d0d48eef6519a37b0bcb74b80f0047ef