[INFO] updating cached repository https://github.com/paavohuhtala/toylang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cef30c0fec1d034c80bec83264738666facf326
[INFO] testing paavohuhtala/toylang against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaavohuhtala%2Ftoylang" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paavohuhtala/toylang on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paavohuhtala/toylang
[INFO] finished tweaking git repo https://github.com/paavohuhtala/toylang
[INFO] tweaked toml for git repo https://github.com/paavohuhtala/toylang written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/paavohuhtala/toylang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24ccf9ec7dbfe0b6b9ab24ebefaa061326f4b8d565557f2fc88a939fb9168945
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "24ccf9ec7dbfe0b6b9ab24ebefaa061326f4b8d565557f2fc88a939fb9168945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24ccf9ec7dbfe0b6b9ab24ebefaa061326f4b8d565557f2fc88a939fb9168945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24ccf9ec7dbfe0b6b9ab24ebefaa061326f4b8d565557f2fc88a939fb9168945", kill_on_drop: false }`
[INFO] [stdout] 24ccf9ec7dbfe0b6b9ab24ebefaa061326f4b8d565557f2fc88a939fb9168945
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9938245a2e9dfc7b21f41f8ef4ab1fccc04cc104fa626df9b75ffc0464e5c9e2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9938245a2e9dfc7b21f41f8ef4ab1fccc04cc104fa626df9b75ffc0464e5c9e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling toylanguage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/interpreter.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |       _ => unreachable!(),
[INFO] [stdout]    |       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     _ => unimplemented!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     _ => panic!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn are_equal(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn is_assignable(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `semantic_ctx`
[INFO] [stdout]   --> src/interpreter.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   semantic_ctx: SemanticContext,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/interpreter.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |       _ => unreachable!(),
[INFO] [stdout]    |       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     _ => unimplemented!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     _ => panic!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn are_equal(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn is_assignable(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equals`
[INFO] [stdout]  --> src/ast_common.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Equals,
[INFO] [stdout]   |   ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unary`
[INFO] [stdout]   --> src/ast_common.rs:27:3
[INFO] [stdout]    |
[INFO] [stdout] 27 |   Unary(UnaryOperator),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take`
[INFO] [stdout]   --> src/char_stream.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub fn take(&mut self) -> Option<char> {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip_until`
[INFO] [stdout]   --> src/char_stream.rs:89:10
[INFO] [stdout]    |
[INFO] [stdout] 89 |   pub fn skip_until(&mut self, predicate: impl Fn(char) -> bool) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]   --> src/interpreter.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   Bool(bool),
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `semantic_ctx`
[INFO] [stdout]   --> src/interpreter.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   semantic_ctx: SemanticContext,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take_integer`
[INFO] [stdout]   --> src/parser.rs:58:10
[INFO] [stdout]    |
[INFO] [stdout] 58 |   pub fn take_integer(&mut self) -> ParseResult<(usize, i128)> {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `declare_type`
[INFO] [stdout]   --> src/semantic.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 |   pub fn declare_type(&mut self, type_: UserType) -> TypeRef {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve_scope_mut`
[INFO] [stdout]   --> src/semantic.rs:95:10
[INFO] [stdout]    |
[INFO] [stdout] 95 |   pub fn resolve_scope_mut(&mut self, scope_id: ScopeId) -> &mut Scope {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnterminatedString`
[INFO] [stdout]  --> src/token_stream.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   UnterminatedString,
[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 4.38s
[INFO] running `Command { std: "docker" "inspect" "9938245a2e9dfc7b21f41f8ef4ab1fccc04cc104fa626df9b75ffc0464e5c9e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9938245a2e9dfc7b21f41f8ef4ab1fccc04cc104fa626df9b75ffc0464e5c9e2", kill_on_drop: false }`
[INFO] [stdout] 9938245a2e9dfc7b21f41f8ef4ab1fccc04cc104fa626df9b75ffc0464e5c9e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8933a5df94a774ab59f935b2ecd6ffa55ec979fafd3b0faa00e16715bd23b198
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8933a5df94a774ab59f935b2ecd6ffa55ec979fafd3b0faa00e16715bd23b198", kill_on_drop: false }`
[INFO] [stderr]    Compiling toylanguage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/interpreter.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |       _ => unreachable!(),
[INFO] [stdout]    |       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     _ => unimplemented!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     _ => panic!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn are_equal(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn is_assignable(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `semantic_ctx`
[INFO] [stdout]   --> src/interpreter.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   semantic_ctx: SemanticContext,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/interpreter.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |       _ => unreachable!(),
[INFO] [stdout]    |       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     _ => unimplemented!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     _ => panic!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn are_equal(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn is_assignable(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equals`
[INFO] [stdout]  --> src/ast_common.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Equals,
[INFO] [stdout]   |   ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unary`
[INFO] [stdout]   --> src/ast_common.rs:27:3
[INFO] [stdout]    |
[INFO] [stdout] 27 |   Unary(UnaryOperator),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take`
[INFO] [stdout]   --> src/char_stream.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub fn take(&mut self) -> Option<char> {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip_until`
[INFO] [stdout]   --> src/char_stream.rs:89:10
[INFO] [stdout]    |
[INFO] [stdout] 89 |   pub fn skip_until(&mut self, predicate: impl Fn(char) -> bool) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]   --> src/interpreter.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   Bool(bool),
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `semantic_ctx`
[INFO] [stdout]   --> src/interpreter.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   semantic_ctx: SemanticContext,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take_integer`
[INFO] [stdout]   --> src/parser.rs:58:10
[INFO] [stdout]    |
[INFO] [stdout] 58 |   pub fn take_integer(&mut self) -> ParseResult<(usize, i128)> {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `declare_type`
[INFO] [stdout]   --> src/semantic.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 |   pub fn declare_type(&mut self, type_: UserType) -> TypeRef {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve_scope_mut`
[INFO] [stdout]   --> src/semantic.rs:95:10
[INFO] [stdout]    |
[INFO] [stdout] 95 |   pub fn resolve_scope_mut(&mut self, scope_id: ScopeId) -> &mut Scope {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnterminatedString`
[INFO] [stdout]  --> src/token_stream.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   UnterminatedString,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/interpreter.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |       _ => unreachable!(),
[INFO] [stdout]    |       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     _ => unimplemented!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     _ => panic!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn are_equal(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn is_assignable(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Equals`
[INFO] [stdout]  --> src/ast_common.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Equals,
[INFO] [stdout]   |   ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unary`
[INFO] [stdout]   --> src/ast_common.rs:27:3
[INFO] [stdout]    |
[INFO] [stdout] 27 |   Unary(UnaryOperator),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]   --> src/interpreter.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   Bool(bool),
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `semantic_ctx`
[INFO] [stdout]   --> src/interpreter.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   semantic_ctx: SemanticContext,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take_integer`
[INFO] [stdout]   --> src/parser.rs:58:10
[INFO] [stdout]    |
[INFO] [stdout] 58 |   pub fn take_integer(&mut self) -> ParseResult<(usize, i128)> {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `declare_type`
[INFO] [stdout]   --> src/semantic.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 |   pub fn declare_type(&mut self, type_: UserType) -> TypeRef {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve_scope_mut`
[INFO] [stdout]   --> src/semantic.rs:95:10
[INFO] [stdout]    |
[INFO] [stdout] 95 |   pub fn resolve_scope_mut(&mut self, scope_id: ScopeId) -> &mut Scope {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnterminatedString`
[INFO] [stdout]  --> src/token_stream.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   UnterminatedString,
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/interpreter.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |       _ => unreachable!(),
[INFO] [stdout]    |       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     _ => unimplemented!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/type_checker.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     _ => panic!(),
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn are_equal(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/type_checker.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn is_assignable(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `semantic_ctx`
[INFO] [stdout]   --> src/interpreter.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   semantic_ctx: SemanticContext,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.32s
[INFO] running `Command { std: "docker" "inspect" "8933a5df94a774ab59f935b2ecd6ffa55ec979fafd3b0faa00e16715bd23b198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8933a5df94a774ab59f935b2ecd6ffa55ec979fafd3b0faa00e16715bd23b198", kill_on_drop: false }`
[INFO] [stdout] 8933a5df94a774ab59f935b2ecd6ffa55ec979fafd3b0faa00e16715bd23b198
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 04ff510f22cbd3856f118cbc9189f001be55ecf118082541706513bed15a5fcf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "04ff510f22cbd3856f118cbc9189f001be55ecf118082541706513bed15a5fcf", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/interpreter.rs:53:7
[INFO] [stderr]    |
[INFO] [stderr] 53 |       _ => unreachable!(),
[INFO] [stderr]    |       ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/type_checker.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     _ => unimplemented!(),
[INFO] [stderr]     |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/type_checker.rs:141:5
[INFO] [stderr]     |
[INFO] [stderr] 141 |     _ => panic!(),
[INFO] [stderr]     |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/type_checker.rs:35:18
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn are_equal(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stderr]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/type_checker.rs:43:22
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn is_assignable(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `semantic_ctx`
[INFO] [stderr]   --> src/interpreter.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   semantic_ctx: SemanticContext,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/interpreter.rs:53:7
[INFO] [stderr]    |
[INFO] [stderr] 53 |       _ => unreachable!(),
[INFO] [stderr]    |       ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/type_checker.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     _ => unimplemented!(),
[INFO] [stderr]     |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/type_checker.rs:141:5
[INFO] [stderr]     |
[INFO] [stderr] 141 |     _ => panic!(),
[INFO] [stderr]     |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/type_checker.rs:35:18
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn are_equal(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stderr]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/type_checker.rs:43:22
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn is_assignable(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `semantic_ctx`
[INFO] [stderr]   --> src/interpreter.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   semantic_ctx: SemanticContext,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/interpreter.rs:53:7
[INFO] [stderr]    |
[INFO] [stderr] 53 |       _ => unreachable!(),
[INFO] [stderr]    |       ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/type_checker.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     _ => unimplemented!(),
[INFO] [stderr]     |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/type_checker.rs:141:5
[INFO] [stderr]     |
[INFO] [stderr] 141 |     _ => panic!(),
[INFO] [stderr]     |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/type_checker.rs:35:18
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn are_equal(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stderr]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/type_checker.rs:43:22
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn is_assignable(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Equals`
[INFO] [stderr]  --> src/ast_common.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Equals,
[INFO] [stderr]   |   ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unary`
[INFO] [stderr]   --> src/ast_common.rs:27:3
[INFO] [stderr]    |
[INFO] [stderr] 27 |   Unary(UnaryOperator),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]   --> src/interpreter.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   Bool(bool),
[INFO] [stderr]    |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `semantic_ctx`
[INFO] [stderr]   --> src/interpreter.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   semantic_ctx: SemanticContext,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `take_integer`
[INFO] [stderr]   --> src/parser.rs:58:10
[INFO] [stderr]    |
[INFO] [stderr] 58 |   pub fn take_integer(&mut self) -> ParseResult<(usize, i128)> {
[INFO] [stderr]    |          ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `declare_type`
[INFO] [stderr]   --> src/semantic.rs:62:10
[INFO] [stderr]    |
[INFO] [stderr] 62 |   pub fn declare_type(&mut self, type_: UserType) -> TypeRef {
[INFO] [stderr]    |          ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `resolve_scope_mut`
[INFO] [stderr]   --> src/semantic.rs:95:10
[INFO] [stderr]    |
[INFO] [stderr] 95 |   pub fn resolve_scope_mut(&mut self, scope_id: ScopeId) -> &mut Scope {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UnterminatedString`
[INFO] [stderr]  --> src/token_stream.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   UnterminatedString,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/interpreter.rs:53:7
[INFO] [stderr]    |
[INFO] [stderr] 53 |       _ => unreachable!(),
[INFO] [stderr]    |       ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/type_checker.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     _ => unimplemented!(),
[INFO] [stderr]     |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/type_checker.rs:141:5
[INFO] [stderr]     |
[INFO] [stderr] 141 |     _ => panic!(),
[INFO] [stderr]     |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/type_checker.rs:35:18
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn are_equal(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stderr]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/type_checker.rs:43:22
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn is_assignable(ctx: &mut SemanticContext, a: TypeRef, b: TypeRef) -> bool {
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Equals`
[INFO] [stderr]  --> src/ast_common.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Equals,
[INFO] [stderr]   |   ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unary`
[INFO] [stderr]   --> src/ast_common.rs:27:3
[INFO] [stderr]    |
[INFO] [stderr] 27 |   Unary(UnaryOperator),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `take`
[INFO] [stderr]   --> src/char_stream.rs:31:10
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn take(&mut self) -> Option<char> {
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `skip_until`
[INFO] [stderr]   --> src/char_stream.rs:89:10
[INFO] [stderr]    |
[INFO] [stderr] 89 |   pub fn skip_until(&mut self, predicate: impl Fn(char) -> bool) {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]   --> src/interpreter.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   Bool(bool),
[INFO] [stderr]    |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `semantic_ctx`
[INFO] [stderr]   --> src/interpreter.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   semantic_ctx: SemanticContext,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `take_integer`
[INFO] [stderr]   --> src/parser.rs:58:10
[INFO] [stderr]    |
[INFO] [stderr] 58 |   pub fn take_integer(&mut self) -> ParseResult<(usize, i128)> {
[INFO] [stderr]    |          ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `declare_type`
[INFO] [stderr]   --> src/semantic.rs:62:10
[INFO] [stderr]    |
[INFO] [stderr] 62 |   pub fn declare_type(&mut self, type_: UserType) -> TypeRef {
[INFO] [stderr]    |          ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `resolve_scope_mut`
[INFO] [stderr]   --> src/semantic.rs:95:10
[INFO] [stderr]    |
[INFO] [stderr] 95 |   pub fn resolve_scope_mut(&mut self, scope_id: ScopeId) -> &mut Scope {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UnterminatedString`
[INFO] [stderr]  --> src/token_stream.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   UnterminatedString,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/toylang-2a9572764cd57b52
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test char_stream::char_stream_tests::take_one_twice ... ok
[INFO] [stdout] test type_checker::assignability_tests::primitive_resolved ... ok
[INFO] [stdout] test token_stream::token_stream_tests::read_seq ... ok
[INFO] [stdout] test semantic::rast_transformer_tests::transform_assignment ... ok
[INFO] [stdout] test char_stream::char_stream_tests::skip_until_all ... ok
[INFO] [stdout] test char_stream::char_stream_tests::skip_while_all ... ok
[INFO] [stdout] test char_stream::char_stream_tests::take_one_empty ... ok
[INFO] [stdout] test char_stream::char_stream_tests::take_one_unicode ... ok
[INFO] [stdout] test parser::parser_tests::parse_block ... ok
[INFO] [stdout] test char_stream::char_stream_tests::take_until_all ... ok
[INFO] [stdout] test parser::parser_tests::parse_declaration ... ok
[INFO] [stdout] test parser::parser_tests::parse_mut_declaration ... ok
[INFO] [stdout] test char_stream::char_stream_tests::take_until_whitespace ... ok
[INFO] [stdout] test parser::parser_tests::parse_declaration_with_type_annotation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/toylangi-782331cd1651568f
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test char_stream::char_stream_tests::take_until_all ... ok
[INFO] [stdout] test char_stream::char_stream_tests::take_until_whitespace ... ok
[INFO] [stdout] test parser::parser_tests::parse_mut_declaration ... ok
[INFO] [stdout] test parser::parser_tests::parse_declaration_with_type_annotation ... ok
[INFO] [stdout] test type_checker::assignability_tests::primitive_resolved ... ok
[INFO] [stdout] test semantic::rast_transformer_tests::transform_assignment ... ok
[INFO] [stdout] test parser::parser_tests::parse_declaration ... ok
[INFO] [stdout] test token_stream::token_stream_tests::read_seq ... ok
[INFO] [stdout] test parser::parser_tests::parse_block ... ok
[INFO] [stdout] test char_stream::char_stream_tests::take_one_empty ... ok
[INFO] [stdout] test char_stream::char_stream_tests::skip_until_all ... ok
[INFO] [stdout] test char_stream::char_stream_tests::skip_while_all ... ok
[INFO] [stdout] test char_stream::char_stream_tests::take_one_unicode ... ok
[INFO] [stdout] test char_stream::char_stream_tests::take_one_twice ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hello-60412be24a6e9eb6
[INFO] [stdout] test hello_world ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/syntax_errors-be3d8a310f8e620f
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test missing_semicolon ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests toylang
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "04ff510f22cbd3856f118cbc9189f001be55ecf118082541706513bed15a5fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04ff510f22cbd3856f118cbc9189f001be55ecf118082541706513bed15a5fcf", kill_on_drop: false }`
[INFO] [stdout] 04ff510f22cbd3856f118cbc9189f001be55ecf118082541706513bed15a5fcf