[INFO] updating cached repository https://github.com/NicholasLYang/saber [INFO] running `"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"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 45a8a2ab52fcd6e884c5b09518f64fb73473ee6f [INFO] checking NicholasLYang/saber against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicholasLYang%2Fsaber" "/workspace/builds/worker-8/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NicholasLYang/saber on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c [INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/NicholasLYang/saber [INFO] finished tweaking git repo https://github.com/NicholasLYang/saber [INFO] tweaked toml for git repo https://github.com/NicholasLYang/saber written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/NicholasLYang/saber already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 2eaf13fc2cc621ec615f0e2cf92e6da52bf31fb66fa33184a9d7e43f69b621f0 [INFO] running `"docker" "start" "-a" "2eaf13fc2cc621ec615f0e2cf92e6da52bf31fb66fa33184a9d7e43f69b621f0"` [INFO] [stderr] Compiling cc v1.0.22 [INFO] [stderr] Checking strum v0.13.0 [INFO] [stderr] Checking itertools v0.8.0 [INFO] [stderr] Compiling quote v0.6.8 [INFO] [stderr] Compiling syn v0.15.15 [INFO] [stderr] Compiling backtrace-sys v0.1.24 [INFO] [stderr] Checking backtrace v0.3.9 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling strum_macros v0.13.0 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking saber v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::convert::TryInto` [INFO] [stderr] --> src/code_generator.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::convert::TryInto; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::convert::TryInto` [INFO] [stderr] --> src/code_generator.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::convert::TryInto; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `var` [INFO] [stderr] --> src/code_generator.rs:180:36 [INFO] [stderr] | [INFO] [stderr] 180 | fn get_params_index(&mut self, var: &Name) -> Result> { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_var` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `type_sig` [INFO] [stderr] --> src/typechecker.rs:269:31 [INFO] [stderr] | [INFO] [stderr] 269 | Pat::Id(name, type_sig) => return Ok(vec![TypedStmt::Asgn(name, expr)]), [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_type_sig` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `names` [INFO] [stderr] --> src/typechecker.rs:295:28 [INFO] [stderr] | [INFO] [stderr] 295 | Pat::Tuple(names) => { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_names` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `return_type` [INFO] [stderr] --> src/typechecker.rs:418:47 [INFO] [stderr] | [INFO] [stderr] 418 | if let Type::Arrow(args_type, return_type) = &(*callee_type) { [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_return_type` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/typechecker.rs:490:24 [INFO] [stderr] | [INFO] [stderr] 490 | (Type::Var(name), t2) | (t2, Type::Var(name)) => true, [INFO] [stderr] | ^^^^ ^^^^ [INFO] [stderr] | [INFO] [stderr] help: consider prefixing with an underscore [INFO] [stderr] | [INFO] [stderr] 490 | (Type::Var(_name), t2) | (t2, Type::Var(_name)) => true, [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t2` [INFO] [stderr] --> src/typechecker.rs:490:31 [INFO] [stderr] | [INFO] [stderr] 490 | (Type::Var(name), t2) | (t2, Type::Var(name)) => true, [INFO] [stderr] | ^^ ^^ [INFO] [stderr] | [INFO] [stderr] help: consider prefixing with an underscore [INFO] [stderr] | [INFO] [stderr] 490 | (Type::Var(name), _t2) | (_t2, Type::Var(name)) => true, [INFO] [stderr] | ^^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `var` [INFO] [stderr] --> src/code_generator.rs:180:36 [INFO] [stderr] | [INFO] [stderr] 180 | fn get_params_index(&mut self, var: &Name) -> Result> { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_var` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `type_sig` [INFO] [stderr] --> src/typechecker.rs:269:31 [INFO] [stderr] | [INFO] [stderr] 269 | Pat::Id(name, type_sig) => return Ok(vec![TypedStmt::Asgn(name, expr)]), [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_type_sig` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `names` [INFO] [stderr] --> src/typechecker.rs:295:28 [INFO] [stderr] | [INFO] [stderr] 295 | Pat::Tuple(names) => { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_names` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `return_type` [INFO] [stderr] --> src/typechecker.rs:418:47 [INFO] [stderr] | [INFO] [stderr] 418 | if let Type::Arrow(args_type, return_type) = &(*callee_type) { [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_return_type` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/typechecker.rs:490:24 [INFO] [stderr] | [INFO] [stderr] 490 | (Type::Var(name), t2) | (t2, Type::Var(name)) => true, [INFO] [stderr] | ^^^^ ^^^^ [INFO] [stderr] | [INFO] [stderr] help: consider prefixing with an underscore [INFO] [stderr] | [INFO] [stderr] 490 | (Type::Var(_name), t2) | (t2, Type::Var(_name)) => true, [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t2` [INFO] [stderr] --> src/typechecker.rs:490:31 [INFO] [stderr] | [INFO] [stderr] 490 | (Type::Var(name), t2) | (t2, Type::Var(name)) => true, [INFO] [stderr] | ^^ ^^ [INFO] [stderr] | [INFO] [stderr] help: consider prefixing with an underscore [INFO] [stderr] | [INFO] [stderr] 490 | (Type::Var(name), _t2) | (_t2, Type::Var(name)) => true, [INFO] [stderr] | ^^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `If` [INFO] [stderr] --> src/ast.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | If(Expr, Box, Option>), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `HiddenVar` [INFO] [stderr] --> src/ast.rs:83:5 [INFO] [stderr] | [INFO] [stderr] 83 | / HiddenVar { [INFO] [stderr] 84 | | name: u64, [INFO] [stderr] 85 | | type_: Arc, [INFO] [stderr] 86 | | }, [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Record` [INFO] [stderr] --> src/ast.rs:215:5 [INFO] [stderr] | [INFO] [stderr] 215 | Record(Vec<(Name, TypeSig)>), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Tuple` [INFO] [stderr] --> src/ast.rs:216:5 [INFO] [stderr] | [INFO] [stderr] 216 | Tuple(Vec), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `InvalidFunctionType` [INFO] [stderr] --> src/code_generator.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | InvalidFunctionType { type_: Arc }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `DestructureFunctionBinding` [INFO] [stderr] --> src/code_generator.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | DestructureFunctionBinding, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `flatten_params` [INFO] [stderr] --> src/code_generator.rs:41:8 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn flatten_params(params: &Pat) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `InvalidFunctionType` [INFO] [stderr] --> src/emitter.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | InvalidFunctionType { type_: Type }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `NotImplemented` [INFO] [stderr] --> src/emitter.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | NotImplemented, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Illegal` [INFO] [stderr] --> src/lexer.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | Illegal, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `EndOfFile` [INFO] [stderr] --> src/lexer.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | EndOfFile, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `NotImplemented` [INFO] [stderr] --> src/parser.rs:39:5 [INFO] [stderr] | [INFO] [stderr] 39 | NotImplemented, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `peek` [INFO] [stderr] --> src/parser.rs:123:5 [INFO] [stderr] | [INFO] [stderr] 123 | fn peek(&mut self) -> Result<(), ParseError> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `ArityMismatch` [INFO] [stderr] --> src/typechecker.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | ArityMismatch { arity1: usize, arity2: usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `RecordContainsNonIds` [INFO] [stderr] --> src/typechecker.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | RecordContainsNonIds { record: Pat }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Function` [INFO] [stderr] --> src/wasm.rs:89:5 [INFO] [stderr] | [INFO] [stderr] 89 | Function { type_: u32 }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Table` [INFO] [stderr] --> src/wasm.rs:90:5 [INFO] [stderr] | [INFO] [stderr] 90 | Table { type_: TableType }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Memory` [INFO] [stderr] --> src/wasm.rs:91:5 [INFO] [stderr] | [INFO] [stderr] 91 | Memory { type_: MemoryType }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Global` [INFO] [stderr] --> src/wasm.rs:92:5 [INFO] [stderr] | [INFO] [stderr] 92 | Global { type_: GlobalType }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `If` [INFO] [stderr] --> src/ast.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | If(Expr, Box, Option>), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `HiddenVar` [INFO] [stderr] --> src/ast.rs:83:5 [INFO] [stderr] | [INFO] [stderr] 83 | / HiddenVar { [INFO] [stderr] 84 | | name: u64, [INFO] [stderr] 85 | | type_: Arc, [INFO] [stderr] 86 | | }, [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Record` [INFO] [stderr] --> src/ast.rs:215:5 [INFO] [stderr] | [INFO] [stderr] 215 | Record(Vec<(Name, TypeSig)>), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Tuple` [INFO] [stderr] --> src/ast.rs:216:5 [INFO] [stderr] | [INFO] [stderr] 216 | Tuple(Vec), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `InvalidFunctionType` [INFO] [stderr] --> src/code_generator.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | InvalidFunctionType { type_: Arc }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `DestructureFunctionBinding` [INFO] [stderr] --> src/code_generator.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | DestructureFunctionBinding, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `flatten_params` [INFO] [stderr] --> src/code_generator.rs:41:8 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn flatten_params(params: &Pat) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `InvalidFunctionType` [INFO] [stderr] --> src/emitter.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | InvalidFunctionType { type_: Type }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `NotImplemented` [INFO] [stderr] --> src/emitter.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | NotImplemented, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Illegal` [INFO] [stderr] --> src/lexer.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | Illegal, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `EndOfFile` [INFO] [stderr] --> src/lexer.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | EndOfFile, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `NotImplemented` [INFO] [stderr] --> src/parser.rs:39:5 [INFO] [stderr] | [INFO] [stderr] 39 | NotImplemented, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `peek` [INFO] [stderr] --> src/parser.rs:123:5 [INFO] [stderr] | [INFO] [stderr] 123 | fn peek(&mut self) -> Result<(), ParseError> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `ArityMismatch` [INFO] [stderr] --> src/typechecker.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | ArityMismatch { arity1: usize, arity2: usize }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `RecordContainsNonIds` [INFO] [stderr] --> src/typechecker.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | RecordContainsNonIds { record: Pat }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Function` [INFO] [stderr] --> src/wasm.rs:89:5 [INFO] [stderr] | [INFO] [stderr] 89 | Function { type_: u32 }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Table` [INFO] [stderr] --> src/wasm.rs:90:5 [INFO] [stderr] | [INFO] [stderr] 90 | Table { type_: TableType }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Memory` [INFO] [stderr] --> src/wasm.rs:91:5 [INFO] [stderr] | [INFO] [stderr] 91 | Memory { type_: MemoryType }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Global` [INFO] [stderr] --> src/wasm.rs:92:5 [INFO] [stderr] | [INFO] [stderr] 92 | Global { type_: GlobalType }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 27.53s [INFO] running `"docker" "inspect" "2eaf13fc2cc621ec615f0e2cf92e6da52bf31fb66fa33184a9d7e43f69b621f0"` [INFO] running `"docker" "rm" "-f" "2eaf13fc2cc621ec615f0e2cf92e6da52bf31fb66fa33184a9d7e43f69b621f0"` [INFO] [stdout] 2eaf13fc2cc621ec615f0e2cf92e6da52bf31fb66fa33184a9d7e43f69b621f0