[INFO] updating cached repository Marwes/haskell-compiler [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Marwes/haskell-compiler [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Marwes/haskell-compiler" "work/ex/beta-1.37-6/sources/1.36.0/gh/Marwes/haskell-compiler"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Marwes/haskell-compiler'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Marwes/haskell-compiler" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Marwes/haskell-compiler"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Marwes/haskell-compiler'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 997a8b64ea57d27a547caba964081b680b1c5152 [INFO] sha for GitHub repo Marwes/haskell-compiler: 997a8b64ea57d27a547caba964081b680b1c5152 [INFO] validating manifest of Marwes/haskell-compiler on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Marwes/haskell-compiler on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Marwes/haskell-compiler [INFO] finished frobbing Marwes/haskell-compiler [INFO] frobbed toml for Marwes/haskell-compiler written to work/ex/beta-1.37-6/sources/1.36.0/gh/Marwes/haskell-compiler/Cargo.toml [INFO] started frobbing Marwes/haskell-compiler [INFO] finished frobbing Marwes/haskell-compiler [INFO] frobbed toml for Marwes/haskell-compiler written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Marwes/haskell-compiler/Cargo.toml [INFO] crate Marwes/haskell-compiler already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing Marwes/haskell-compiler against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Marwes/haskell-compiler:/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" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 70f431726cafa5acbbe17e682d68d21e50571b7bf2d343e6e741b451e4acdce2 [INFO] running `"docker" "start" "-a" "70f431726cafa5acbbe17e682d68d21e50571b7bf2d343e6e741b451e4acdce2"` [INFO] [stderr] Compiling haskell-compiler v0.0.1 (/opt/crater/workdir) [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/main.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(box_syntax)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `Compiler` is imported redundantly [INFO] [stderr] --> src/compiler.rs:1066:9 [INFO] [stderr] | [INFO] [stderr] 353 | / pub struct Compiler<'a> { [INFO] [stderr] 354 | | ///Hashmap containging class names mapped to the functions it contains [INFO] [stderr] 355 | | pub instance_dictionaries: Vec<(Vec<(Name, Type)>, Vec)>, [INFO] [stderr] 356 | | pub stack_size : usize, [INFO] [stderr] ... | [INFO] [stderr] 361 | | context: Vec> [INFO] [stderr] 362 | | } [INFO] [stderr] | |_- the item `Compiler` is already defined here [INFO] [stderr] ... [INFO] [stderr] 1066 | use compiler::Compiler; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: the item `rename_modules` is imported redundantly [INFO] [stderr] --> src/typecheck.rs:1629:9 [INFO] [stderr] | [INFO] [stderr] 12 | use renamer::*; [INFO] [stderr] | ---------- the item `rename_modules` is already imported here [INFO] [stderr] ... [INFO] [stderr] 1629 | use renamer::rename_modules; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused macro definition [INFO] [stderr] --> src/parser.rs:79:1 [INFO] [stderr] | [INFO] [stderr] 79 | / macro_rules! expect1 { [INFO] [stderr] 80 | | ($e: expr, $p: ident ($x: ident)) => ({ [INFO] [stderr] 81 | | match $e.next().token { [INFO] [stderr] 82 | | $p($x) => $x, [INFO] [stderr] ... | [INFO] [stderr] 85 | | }) [INFO] [stderr] 86 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_macros)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused macro definition [INFO] [stderr] --> src/parser.rs:88:1 [INFO] [stderr] | [INFO] [stderr] 88 | / macro_rules! matches { [INFO] [stderr] 89 | | ($e: expr, $p: pat) => ( [INFO] [stderr] 90 | | match $e { [INFO] [stderr] 91 | | $p => true, [INFO] [stderr] ... | [INFO] [stderr] 94 | | ) [INFO] [stderr] 95 | | } [INFO] [stderr] | |_^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `interner::*` [INFO] [stderr] --> src/core.rs:403:9 [INFO] [stderr] | [INFO] [stderr] 403 | use interner::*; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `name` [INFO] [stderr] --> src/lambda_lift.rs:5:15 [INFO] [stderr] | [INFO] [stderr] 5 | use renamer::{name, NameSupply}; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Application`, `Constructor` [INFO] [stderr] --> src/repl.rs:8:18 [INFO] [stderr] | [INFO] [stderr] 8 | use core::Type::{Application, Constructor}; [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `haskell-compiler`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "70f431726cafa5acbbe17e682d68d21e50571b7bf2d343e6e741b451e4acdce2"` [INFO] running `"docker" "rm" "-f" "70f431726cafa5acbbe17e682d68d21e50571b7bf2d343e6e741b451e4acdce2"` [INFO] [stdout] 70f431726cafa5acbbe17e682d68d21e50571b7bf2d343e6e741b451e4acdce2