[INFO] cloning repository https://github.com/TopologicallySpeaking/ckproof
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TopologicallySpeaking/ckproof" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTopologicallySpeaking%2Fckproof", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTopologicallySpeaking%2Fckproof'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9157adfb56c8cf926479f8a0f2427a5881647abb
[INFO] testing TopologicallySpeaking/ckproof against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTopologicallySpeaking%2Fckproof" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TopologicallySpeaking/ckproof on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TopologicallySpeaking/ckproof
[INFO] finished tweaking git repo https://github.com/TopologicallySpeaking/ckproof
[INFO] tweaked toml for git repo https://github.com/TopologicallySpeaking/ckproof written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/TopologicallySpeaking/ckproof already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e12e3c253cf62271334e0a6ebf41a68fa5df1711c513b9c9868ef6ccc357c61b
[INFO] running `Command { std: "docker" "start" "-a" "e12e3c253cf62271334e0a6ebf41a68fa5df1711c513b9c9868ef6ccc357c61b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e12e3c253cf62271334e0a6ebf41a68fa5df1711c513b9c9868ef6ccc357c61b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e12e3c253cf62271334e0a6ebf41a68fa5df1711c513b9c9868ef6ccc357c61b", kill_on_drop: false }`
[INFO] [stdout] e12e3c253cf62271334e0a6ebf41a68fa5df1711c513b9c9868ef6ccc357c61b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afd073b4dd2cb0ccce10d2f5cd3a4560e005dd4ff9856bf83283f99317e011fd
[INFO] running `Command { std: "docker" "start" "-a" "afd073b4dd2cb0ccce10d2f5cd3a4560e005dd4ff9856bf83283f99317e011fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling tinyvec v1.1.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling form_urlencoded v1.0.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling unicode-normalization v0.1.16
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling ckproof v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]     --> src/builders/language.rs:2032:18
[INFO] [stdout]      |
[INFO] [stdout] 2032 |     fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `formula`
[INFO] [stdout]     --> src/builders/language.rs:2487:39
[INFO] [stdout]      |
[INFO] [stdout] 2487 |             Self::ReadableApplication(formula) => todo!(),
[INFO] [stdout]      |                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errors`
[INFO] [stdout]     --> src/builders/system.rs:2199:9
[INFO] [stdout]      |
[INFO] [stdout] 2199 |         errors: &mut ParsingErrorContext,
[INFO] [stdout]      |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_errors`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:110:19
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:333:19
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:479:19
[INFO] [stdout]     |
[INFO] [stdout] 479 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:508:19
[INFO] [stdout]     |
[INFO] [stdout] 508 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/structure.rs:267:19
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_ref`
[INFO] [stdout]    --> src/document/structure.rs:304:25
[INFO] [stdout]     |
[INFO] [stdout] 304 |             Block::Type(type_ref) => todo!(),
[INFO] [stdout]     |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:117:19
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:258:19
[INFO] [stdout]     |
[INFO] [stdout] 258 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:420:19
[INFO] [stdout]     |
[INFO] [stdout] 420 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:589:19
[INFO] [stdout]     |
[INFO] [stdout] 589 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]    --> src/document/system.rs:615:26
[INFO] [stdout]     |
[INFO] [stdout] 615 |     pub fn render(&self, text: Option<&BareText>) -> String {
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/text.rs:226:19
[INFO] [stdout]     |
[INFO] [stdout] 226 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/language.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/language.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/deduction/language.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     id: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/deduction/language.rs:188:5
[INFO] [stdout]     |
[INFO] [stdout] 188 |     id: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/system.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/system.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/system.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.51s
[INFO] running `Command { std: "docker" "inspect" "afd073b4dd2cb0ccce10d2f5cd3a4560e005dd4ff9856bf83283f99317e011fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afd073b4dd2cb0ccce10d2f5cd3a4560e005dd4ff9856bf83283f99317e011fd", kill_on_drop: false }`
[INFO] [stdout] afd073b4dd2cb0ccce10d2f5cd3a4560e005dd4ff9856bf83283f99317e011fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 989486e9ae22877dc339509608ab966782538ece5e36a71219fc01e496b60cff
[INFO] running `Command { std: "docker" "start" "-a" "989486e9ae22877dc339509608ab966782538ece5e36a71219fc01e496b60cff", kill_on_drop: false }`
[INFO] [stderr]    Compiling ckproof v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]     --> src/builders/language.rs:2032:18
[INFO] [stdout]      |
[INFO] [stdout] 2032 |     fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `formula`
[INFO] [stdout]     --> src/builders/language.rs:2487:39
[INFO] [stdout]      |
[INFO] [stdout] 2487 |             Self::ReadableApplication(formula) => todo!(),
[INFO] [stdout]      |                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errors`
[INFO] [stdout]     --> src/builders/system.rs:2199:9
[INFO] [stdout]      |
[INFO] [stdout] 2199 |         errors: &mut ParsingErrorContext,
[INFO] [stdout]      |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_errors`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:110:19
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:333:19
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:479:19
[INFO] [stdout]     |
[INFO] [stdout] 479 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:508:19
[INFO] [stdout]     |
[INFO] [stdout] 508 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/structure.rs:267:19
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_ref`
[INFO] [stdout]    --> src/document/structure.rs:304:25
[INFO] [stdout]     |
[INFO] [stdout] 304 |             Block::Type(type_ref) => todo!(),
[INFO] [stdout]     |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:117:19
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:258:19
[INFO] [stdout]     |
[INFO] [stdout] 258 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:420:19
[INFO] [stdout]     |
[INFO] [stdout] 420 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:589:19
[INFO] [stdout]     |
[INFO] [stdout] 589 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]    --> src/document/system.rs:615:26
[INFO] [stdout]     |
[INFO] [stdout] 615 |     pub fn render(&self, text: Option<&BareText>) -> String {
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/text.rs:226:19
[INFO] [stdout]     |
[INFO] [stdout] 226 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/language.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/language.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/deduction/language.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     id: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/deduction/language.rs:188:5
[INFO] [stdout]     |
[INFO] [stdout] 188 |     id: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/system.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/system.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/system.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]     --> src/builders/language.rs:2032:18
[INFO] [stdout]      |
[INFO] [stdout] 2032 |     fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `formula`
[INFO] [stdout]     --> src/builders/language.rs:2487:39
[INFO] [stdout]      |
[INFO] [stdout] 2487 |             Self::ReadableApplication(formula) => todo!(),
[INFO] [stdout]      |                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `errors`
[INFO] [stdout]     --> src/builders/system.rs:2199:9
[INFO] [stdout]      |
[INFO] [stdout] 2199 |         errors: &mut ParsingErrorContext,
[INFO] [stdout]      |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_errors`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:110:19
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:333:19
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:479:19
[INFO] [stdout]     |
[INFO] [stdout] 479 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/language.rs:508:19
[INFO] [stdout]     |
[INFO] [stdout] 508 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/structure.rs:267:19
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_ref`
[INFO] [stdout]    --> src/document/structure.rs:304:25
[INFO] [stdout]     |
[INFO] [stdout] 304 |             Block::Type(type_ref) => todo!(),
[INFO] [stdout]     |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:117:19
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:258:19
[INFO] [stdout]     |
[INFO] [stdout] 258 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:420:19
[INFO] [stdout]     |
[INFO] [stdout] 420 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/system.rs:589:19
[INFO] [stdout]     |
[INFO] [stdout] 589 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]    --> src/document/system.rs:615:26
[INFO] [stdout]     |
[INFO] [stdout] 615 |     pub fn render(&self, text: Option<&BareText>) -> String {
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/document/text.rs:226:19
[INFO] [stdout]     |
[INFO] [stdout] 226 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/language.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/language.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/deduction/language.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     id: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/deduction/language.rs:188:5
[INFO] [stdout]     |
[INFO] [stdout] 188 |     id: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/system.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/system.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/deduction/system.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.49s
[INFO] running `Command { std: "docker" "inspect" "989486e9ae22877dc339509608ab966782538ece5e36a71219fc01e496b60cff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "989486e9ae22877dc339509608ab966782538ece5e36a71219fc01e496b60cff", kill_on_drop: false }`
[INFO] [stdout] 989486e9ae22877dc339509608ab966782538ece5e36a71219fc01e496b60cff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5bd32d66bda460bc45ef14ba486d31d43480da3042ef6d91eb030c42b55472b9
[INFO] running `Command { std: "docker" "start" "-a" "5bd32d66bda460bc45ef14ba486d31d43480da3042ef6d91eb030c42b55472b9", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]     --> src/builders/language.rs:2032:18
[INFO] [stderr]      |
[INFO] [stderr] 2032 |     fn eq(&self, other: &Self) -> bool {
[INFO] [stderr]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `formula`
[INFO] [stderr]     --> src/builders/language.rs:2487:39
[INFO] [stderr]      |
[INFO] [stderr] 2487 |             Self::ReadableApplication(formula) => todo!(),
[INFO] [stderr]      |                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `errors`
[INFO] [stderr]     --> src/builders/system.rs:2199:9
[INFO] [stderr]      |
[INFO] [stderr] 2199 |         errors: &mut ParsingErrorContext,
[INFO] [stderr]      |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_errors`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/language.rs:110:19
[INFO] [stderr]     |
[INFO] [stderr] 110 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/language.rs:333:19
[INFO] [stderr]     |
[INFO] [stderr] 333 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/language.rs:479:19
[INFO] [stderr]     |
[INFO] [stderr] 479 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/language.rs:508:19
[INFO] [stderr]     |
[INFO] [stderr] 508 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/structure.rs:267:19
[INFO] [stderr]     |
[INFO] [stderr] 267 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_ref`
[INFO] [stderr]    --> src/document/structure.rs:304:25
[INFO] [stderr]     |
[INFO] [stderr] 304 |             Block::Type(type_ref) => todo!(),
[INFO] [stderr]     |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/system.rs:117:19
[INFO] [stderr]     |
[INFO] [stderr] 117 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/system.rs:258:19
[INFO] [stderr]     |
[INFO] [stderr] 258 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/system.rs:420:19
[INFO] [stderr]     |
[INFO] [stderr] 420 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/system.rs:589:19
[INFO] [stderr]     |
[INFO] [stderr] 589 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]    --> src/document/system.rs:615:26
[INFO] [stderr]     |
[INFO] [stderr] 615 |     pub fn render(&self, text: Option<&BareText>) -> String {
[INFO] [stderr]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/text.rs:226:19
[INFO] [stderr]     |
[INFO] [stderr] 226 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/deduction/language.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     id: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/deduction/language.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     id: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]    --> src/deduction/language.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     id: String,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]    --> src/deduction/language.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 |     id: String,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/deduction/system.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     id: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/deduction/system.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     id: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/deduction/system.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     id: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]     --> src/builders/language.rs:2032:18
[INFO] [stderr]      |
[INFO] [stderr] 2032 |     fn eq(&self, other: &Self) -> bool {
[INFO] [stderr]      |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `formula`
[INFO] [stderr]     --> src/builders/language.rs:2487:39
[INFO] [stderr]      |
[INFO] [stderr] 2487 |             Self::ReadableApplication(formula) => todo!(),
[INFO] [stderr]      |                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formula`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `errors`
[INFO] [stderr]     --> src/builders/system.rs:2199:9
[INFO] [stderr]      |
[INFO] [stderr] 2199 |         errors: &mut ParsingErrorContext,
[INFO] [stderr]      |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_errors`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/language.rs:110:19
[INFO] [stderr]     |
[INFO] [stderr] 110 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/language.rs:333:19
[INFO] [stderr]     |
[INFO] [stderr] 333 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/language.rs:479:19
[INFO] [stderr]     |
[INFO] [stderr] 479 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/language.rs:508:19
[INFO] [stderr]     |
[INFO] [stderr] 508 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/structure.rs:267:19
[INFO] [stderr]     |
[INFO] [stderr] 267 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_ref`
[INFO] [stderr]    --> src/document/structure.rs:304:25
[INFO] [stderr]     |
[INFO] [stderr] 304 |             Block::Type(type_ref) => todo!(),
[INFO] [stderr]     |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/system.rs:117:19
[INFO] [stderr]     |
[INFO] [stderr] 117 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/system.rs:258:19
[INFO] [stderr]     |
[INFO] [stderr] 258 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/system.rs:420:19
[INFO] [stderr]     |
[INFO] [stderr] 420 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/system.rs:589:19
[INFO] [stderr]     |
[INFO] [stderr] 589 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]    --> src/document/system.rs:615:26
[INFO] [stderr]     |
[INFO] [stderr] 615 |     pub fn render(&self, text: Option<&BareText>) -> String {
[INFO] [stderr]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/document/text.rs:226:19
[INFO] [stderr]     |
[INFO] [stderr] 226 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/deduction/language.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     id: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/deduction/language.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     id: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]    --> src/deduction/language.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     id: String,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]    --> src/deduction/language.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 |     id: String,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/deduction/system.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     id: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/deduction/system.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     id: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/deduction/system.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     id: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ckproof-3e31d2a4e9593e01)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ckproof-1d8dcf0bc42db92a)
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests ckproof
[INFO] [stdout] test document::structure::tests::block_location ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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] [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" "5bd32d66bda460bc45ef14ba486d31d43480da3042ef6d91eb030c42b55472b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bd32d66bda460bc45ef14ba486d31d43480da3042ef6d91eb030c42b55472b9", kill_on_drop: false }`
[INFO] [stdout] 5bd32d66bda460bc45ef14ba486d31d43480da3042ef6d91eb030c42b55472b9