[INFO] updating cached repository paavohuhtala/toylang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/paavohuhtala/toylang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/paavohuhtala/toylang" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/paavohuhtala/toylang"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/paavohuhtala/toylang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/paavohuhtala/toylang" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/paavohuhtala/toylang"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/paavohuhtala/toylang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3cef30c0fec1d034c80bec83264738666facf326
[INFO] sha for GitHub repo paavohuhtala/toylang: 3cef30c0fec1d034c80bec83264738666facf326
[INFO] validating manifest of paavohuhtala/toylang on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of paavohuhtala/toylang on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing paavohuhtala/toylang
[INFO] finished frobbing paavohuhtala/toylang
[INFO] frobbed toml for paavohuhtala/toylang written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/paavohuhtala/toylang/Cargo.toml
[INFO] started frobbing paavohuhtala/toylang
[INFO] finished frobbing paavohuhtala/toylang
[INFO] frobbed toml for paavohuhtala/toylang written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/paavohuhtala/toylang/Cargo.toml
[INFO] crate paavohuhtala/toylang already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking paavohuhtala/toylang against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-2/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/paavohuhtala/toylang:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] eb4b96122a6d74a5f8cb612667bb37493491e0ac86709829ea6b299f3a708a6a
[INFO] running `"docker" "start" "-a" "eb4b96122a6d74a5f8cb612667bb37493491e0ac86709829ea6b299f3a708a6a"`
[INFO] [stderr]     Checking toylanguage v0.1.0 (/opt/crater/workdir)
[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: consider prefixing 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: consider prefixing with an underscore: `_ctx`
[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: consider prefixing 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: consider prefixing with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `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: field is never used: `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: 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: consider prefixing 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: consider prefixing with an underscore: `_ctx`
[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: consider prefixing 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: consider prefixing 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 used: `semantic_ctx`
[INFO] [stderr]   --> src/interpreter.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   semantic_ctx: SemanticContext,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `take_integer`
[INFO] [stderr]   --> src/parser.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |   pub fn take_integer(&mut self) -> ParseResult<(usize, i128)> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `declare_type`
[INFO] [stderr]   --> src/semantic.rs:62:3
[INFO] [stderr]    |
[INFO] [stderr] 62 |   pub fn declare_type(&mut self, type_: UserType) -> TypeRef {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `resolve_scope_mut`
[INFO] [stderr]   --> src/semantic.rs:95:3
[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: 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: method is never used: `take`
[INFO] [stderr]   --> src/char_stream.rs:31:3
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn take(&mut self) -> Option<char> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `skip_until`
[INFO] [stderr]   --> src/char_stream.rs:89:3
[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 used: `semantic_ctx`
[INFO] [stderr]   --> src/interpreter.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   semantic_ctx: SemanticContext,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `take_integer`
[INFO] [stderr]   --> src/parser.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |   pub fn take_integer(&mut self) -> ParseResult<(usize, i128)> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `declare_type`
[INFO] [stderr]   --> src/semantic.rs:62:3
[INFO] [stderr]    |
[INFO] [stderr] 62 |   pub fn declare_type(&mut self, type_: UserType) -> TypeRef {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `resolve_scope_mut`
[INFO] [stderr]   --> src/semantic.rs:95:3
[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]     Finished dev [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `"docker" "inspect" "eb4b96122a6d74a5f8cb612667bb37493491e0ac86709829ea6b299f3a708a6a"`
[INFO] running `"docker" "rm" "-f" "eb4b96122a6d74a5f8cb612667bb37493491e0ac86709829ea6b299f3a708a6a"`
[INFO] [stdout] eb4b96122a6d74a5f8cb612667bb37493491e0ac86709829ea6b299f3a708a6a