[INFO] updating cached repository NicholasLYang/saber [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/NicholasLYang/saber [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/NicholasLYang/saber" "work/ex/beta-1.38-1/sources/1.37.0/gh/NicholasLYang/saber"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/NicholasLYang/saber'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/NicholasLYang/saber" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NicholasLYang/saber"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NicholasLYang/saber'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 1313b4bb9b06cf428026b8a38c77f08a34bf3246 [INFO] sha for GitHub repo NicholasLYang/saber: 1313b4bb9b06cf428026b8a38c77f08a34bf3246 [INFO] validating manifest of NicholasLYang/saber on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of NicholasLYang/saber on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing NicholasLYang/saber [INFO] finished frobbing NicholasLYang/saber [INFO] frobbed toml for NicholasLYang/saber written to work/ex/beta-1.38-1/sources/1.37.0/gh/NicholasLYang/saber/Cargo.toml [INFO] started frobbing NicholasLYang/saber [INFO] finished frobbing NicholasLYang/saber [INFO] frobbed toml for NicholasLYang/saber written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NicholasLYang/saber/Cargo.toml [INFO] crate NicholasLYang/saber already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "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" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing NicholasLYang/saber against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/NicholasLYang/saber:/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=warn" "-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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 46acb22a453f5ca5612c4e9ef8ecb90c3c10ab591fe46794897af7c751a93e9c [INFO] running `"docker" "start" "-a" "46acb22a453f5ca5612c4e9ef8ecb90c3c10ab591fe46794897af7c751a93e9c"` [INFO] [stderr] Compiling byte-tools v0.3.0 [INFO] [stderr] Compiling byteorder v1.2.7 [INFO] [stderr] Compiling opaque-debug v0.2.1 [INFO] [stderr] Compiling lalrpop-util v0.16.1 [INFO] [stderr] Compiling strum v0.13.0 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling phf_generator v0.7.23 [INFO] [stderr] Compiling memchr v2.1.1 [INFO] [stderr] Compiling syn v0.15.15 [INFO] [stderr] Compiling block-padding v0.1.2 [INFO] [stderr] Compiling string_cache_codegen v0.4.2 [INFO] [stderr] Compiling ena v0.10.1 [INFO] [stderr] Compiling block-buffer v0.7.0 [INFO] [stderr] Compiling aho-corasick v0.6.9 [INFO] [stderr] Compiling sha2 v0.8.0 [INFO] [stderr] Compiling regex v1.0.5 [INFO] [stderr] Compiling string_cache v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.80 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling strum_macros v0.13.0 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling docopt v1.0.2 [INFO] [stderr] Compiling lalrpop v0.16.1 [INFO] [stderr] Compiling saber v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `Name` [INFO] [stderr] --> src/parser.rs:1:24 [INFO] [stderr] | [INFO] [stderr] 1 | use crate::ast::{Expr, Name, Op, Pat, Stmt, TypeSig, Value}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/parser.rs:434:20 [INFO] [stderr] | [INFO] [stderr] 434 | parse_fn: &Fn(&mut Self) -> Result, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Self) -> Result` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `itertools::Itertools` [INFO] [stderr] --> src/typechecker.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use itertools::Itertools; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `end` [INFO] [stderr] --> src/parser.rs:307:41 [INFO] [stderr] | [INFO] [stderr] 307 | Some((start, Token::LParen, end)) => { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_end` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `start` [INFO] [stderr] --> src/parser.rs:307:19 [INFO] [stderr] | [INFO] [stderr] 307 | Some((start, Token::LParen, end)) => { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_start` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `end` [INFO] [stderr] --> src/parser.rs:319:46 [INFO] [stderr] | [INFO] [stderr] 319 | Some((start, Token::Ident(name), end)) => Ok(Expr::Var { name }), [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_end` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `start` [INFO] [stderr] --> src/parser.rs:319:19 [INFO] [stderr] | [INFO] [stderr] 319 | Some((start, Token::Ident(name), end)) => Ok(Expr::Var { name }), [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_start` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `end` [INFO] [stderr] --> src/parser.rs:389:46 [INFO] [stderr] | [INFO] [stderr] 389 | Some((start, Token::Ident(name), end)) => { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_end` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `start` [INFO] [stderr] --> src/parser.rs:389:19 [INFO] [stderr] | [INFO] [stderr] 389 | Some((start, Token::Ident(name), end)) => { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_start` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/typechecker.rs:172:21 [INFO] [stderr] | [INFO] [stderr] 172 | Pat::Id(name, Some(type_sig)) => self.lookup_type_sig(&type_sig), [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_name` [INFO] [stderr] [INFO] [stderr] warning: private type `parser::Location` in public interface (error E0446) [INFO] [stderr] --> src/parser.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | location: Location, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(private_in_public)] on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #34537 [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Expr` [INFO] [stderr] --> src/ast.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | Expr(Expr), [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `If` [INFO] [stderr] --> src/ast.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | If(Expr, Box, Option>), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Return` [INFO] [stderr] --> src/ast.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | Return(TypedExpr), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Block` [INFO] [stderr] --> src/ast.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | Block(Vec), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Call` [INFO] [stderr] --> src/ast.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | / Call { [INFO] [stderr] 44 | | callee: Box, [INFO] [stderr] 45 | | arg: Box, [INFO] [stderr] 46 | | }, [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `UnaryOp` [INFO] [stderr] --> src/ast.rs:66:5 [INFO] [stderr] | [INFO] [stderr] 66 | / UnaryOp { [INFO] [stderr] 67 | | op: Op, [INFO] [stderr] 68 | | rhs: Box, [INFO] [stderr] 69 | | type_: Type, [INFO] [stderr] 70 | | }, [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Call` [INFO] [stderr] --> src/ast.rs:76:5 [INFO] [stderr] | [INFO] [stderr] 76 | / Call { [INFO] [stderr] 77 | | callee: Box, [INFO] [stderr] 78 | | arg: Box, [INFO] [stderr] 79 | | type_: Type, [INFO] [stderr] 80 | | }, [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Comma` [INFO] [stderr] --> src/ast.rs:94:5 [INFO] [stderr] | [INFO] [stderr] 94 | Comma, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Arrow` [INFO] [stderr] --> src/ast.rs:120:5 [INFO] [stderr] | [INFO] [stderr] 120 | Arrow(Box, Box), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Illegal` [INFO] [stderr] --> src/lexer.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | Illegal, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `EndOfFile` [INFO] [stderr] --> src/lexer.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | EndOfFile, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `peek` [INFO] [stderr] --> src/parser.rs:113:5 [INFO] [stderr] | [INFO] [stderr] 113 | fn peek(&mut self) -> Result<()> { [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: method is never used: `infer_multiple_asgn` [INFO] [stderr] --> src/typechecker.rs:131:5 [INFO] [stderr] | [INFO] [stderr] 131 | fn infer_multiple_asgn(&mut self, asgns: &Vec, rhs_type: Type) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_types_from_pat_vec` [INFO] [stderr] --> src/typechecker.rs:151:5 [INFO] [stderr] | [INFO] [stderr] 151 | fn get_types_from_pat_vec(&mut self, patterns: &Vec) -> Result, TypeError> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/typechecker.rs:273:21 [INFO] [stderr] | [INFO] [stderr] 273 | self.insert_params(pat); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/typechecker.rs:278:21 [INFO] [stderr] | [INFO] [stderr] 278 | self.insert_params(pat); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 53s [INFO] running `"docker" "inspect" "46acb22a453f5ca5612c4e9ef8ecb90c3c10ab591fe46794897af7c751a93e9c"` [INFO] running `"docker" "rm" "-f" "46acb22a453f5ca5612c4e9ef8ecb90c3c10ab591fe46794897af7c751a93e9c"` [INFO] [stdout] 46acb22a453f5ca5612c4e9ef8ecb90c3c10ab591fe46794897af7c751a93e9c [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/NicholasLYang/saber:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 9cfb63d57479bd79fdb0188b62569d54739b478d56a4987365849ae004755bd0 [INFO] running `"docker" "start" "-a" "9cfb63d57479bd79fdb0188b62569d54739b478d56a4987365849ae004755bd0"` [INFO] [stderr] Compiling saber v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `Name` [INFO] [stderr] --> src/parser.rs:1:24 [INFO] [stderr] | [INFO] [stderr] 1 | use crate::ast::{Expr, Name, Op, Pat, Stmt, TypeSig, Value}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/parser.rs:434:20 [INFO] [stderr] | [INFO] [stderr] 434 | parse_fn: &Fn(&mut Self) -> Result, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Self) -> Result` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `itertools::Itertools` [INFO] [stderr] --> src/typechecker.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use itertools::Itertools; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `end` [INFO] [stderr] --> src/parser.rs:307:41 [INFO] [stderr] | [INFO] [stderr] 307 | Some((start, Token::LParen, end)) => { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_end` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `start` [INFO] [stderr] --> src/parser.rs:307:19 [INFO] [stderr] | [INFO] [stderr] 307 | Some((start, Token::LParen, end)) => { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_start` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `end` [INFO] [stderr] --> src/parser.rs:319:46 [INFO] [stderr] | [INFO] [stderr] 319 | Some((start, Token::Ident(name), end)) => Ok(Expr::Var { name }), [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_end` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `start` [INFO] [stderr] --> src/parser.rs:319:19 [INFO] [stderr] | [INFO] [stderr] 319 | Some((start, Token::Ident(name), end)) => Ok(Expr::Var { name }), [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_start` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `end` [INFO] [stderr] --> src/parser.rs:389:46 [INFO] [stderr] | [INFO] [stderr] 389 | Some((start, Token::Ident(name), end)) => { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_end` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `start` [INFO] [stderr] --> src/parser.rs:389:19 [INFO] [stderr] | [INFO] [stderr] 389 | Some((start, Token::Ident(name), end)) => { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_start` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/typechecker.rs:172:21 [INFO] [stderr] | [INFO] [stderr] 172 | Pat::Id(name, Some(type_sig)) => self.lookup_type_sig(&type_sig), [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_name` [INFO] [stderr] [INFO] [stderr] warning: private type `parser::Location` in public interface (error E0446) [INFO] [stderr] --> src/parser.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | location: Location, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(private_in_public)] on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #34537 [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Expr` [INFO] [stderr] --> src/ast.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | Expr(Expr), [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `If` [INFO] [stderr] --> src/ast.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | If(Expr, Box, Option>), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Return` [INFO] [stderr] --> src/ast.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | Return(TypedExpr), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Block` [INFO] [stderr] --> src/ast.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | Block(Vec), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Call` [INFO] [stderr] --> src/ast.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | / Call { [INFO] [stderr] 44 | | callee: Box, [INFO] [stderr] 45 | | arg: Box, [INFO] [stderr] 46 | | }, [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `UnaryOp` [INFO] [stderr] --> src/ast.rs:66:5 [INFO] [stderr] | [INFO] [stderr] 66 | / UnaryOp { [INFO] [stderr] 67 | | op: Op, [INFO] [stderr] 68 | | rhs: Box, [INFO] [stderr] 69 | | type_: Type, [INFO] [stderr] 70 | | }, [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Call` [INFO] [stderr] --> src/ast.rs:76:5 [INFO] [stderr] | [INFO] [stderr] 76 | / Call { [INFO] [stderr] 77 | | callee: Box, [INFO] [stderr] 78 | | arg: Box, [INFO] [stderr] 79 | | type_: Type, [INFO] [stderr] 80 | | }, [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Comma` [INFO] [stderr] --> src/ast.rs:94:5 [INFO] [stderr] | [INFO] [stderr] 94 | Comma, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Arrow` [INFO] [stderr] --> src/ast.rs:120:5 [INFO] [stderr] | [INFO] [stderr] 120 | Arrow(Box, Box), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Illegal` [INFO] [stderr] --> src/lexer.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | Illegal, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `EndOfFile` [INFO] [stderr] --> src/lexer.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | EndOfFile, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `peek` [INFO] [stderr] --> src/parser.rs:113:5 [INFO] [stderr] | [INFO] [stderr] 113 | fn peek(&mut self) -> Result<()> { [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: method is never used: `infer_multiple_asgn` [INFO] [stderr] --> src/typechecker.rs:131:5 [INFO] [stderr] | [INFO] [stderr] 131 | fn infer_multiple_asgn(&mut self, asgns: &Vec, rhs_type: Type) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_types_from_pat_vec` [INFO] [stderr] --> src/typechecker.rs:151:5 [INFO] [stderr] | [INFO] [stderr] 151 | fn get_types_from_pat_vec(&mut self, patterns: &Vec) -> Result, TypeError> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/typechecker.rs:273:21 [INFO] [stderr] | [INFO] [stderr] 273 | self.insert_params(pat); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/typechecker.rs:278:21 [INFO] [stderr] | [INFO] [stderr] 278 | self.insert_params(pat); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.59s [INFO] running `"docker" "inspect" "9cfb63d57479bd79fdb0188b62569d54739b478d56a4987365849ae004755bd0"` [INFO] running `"docker" "rm" "-f" "9cfb63d57479bd79fdb0188b62569d54739b478d56a4987365849ae004755bd0"` [INFO] [stdout] 9cfb63d57479bd79fdb0188b62569d54739b478d56a4987365849ae004755bd0 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/NicholasLYang/saber:/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=warn" "-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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 66217db66160384a79de252096615fc0bd9d2638ccf56e70a96704c4f3f8ead9 [INFO] running `"docker" "start" "-a" "66217db66160384a79de252096615fc0bd9d2638ccf56e70a96704c4f3f8ead9"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.15s [INFO] [stderr] Running /opt/crater/target/debug/deps/saber-f301d214b96c0665 [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 `"docker" "inspect" "66217db66160384a79de252096615fc0bd9d2638ccf56e70a96704c4f3f8ead9"` [INFO] running `"docker" "rm" "-f" "66217db66160384a79de252096615fc0bd9d2638ccf56e70a96704c4f3f8ead9"` [INFO] [stdout] 66217db66160384a79de252096615fc0bd9d2638ccf56e70a96704c4f3f8ead9