[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-1.38-1/sources/1.37.0/gh/Marwes/haskell-compiler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Marwes/haskell-compiler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Marwes/haskell-compiler" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Marwes/haskell-compiler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Marwes/haskell-compiler 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 Marwes/haskell-compiler
[INFO] finished frobbing Marwes/haskell-compiler
[INFO] frobbed toml for Marwes/haskell-compiler written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Marwes/haskell-compiler 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 080fa877982d0298ce988d1a55610d43fb7b18a101f4d9cad3d0dba94d07ecf2
[INFO] running `"docker" "start" "-a" "080fa877982d0298ce988d1a55610d43fb7b18a101f4d9cad3d0dba94d07ecf2"`
[INFO] [stderr]    Compiling getopts v0.2.14
[INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.14/src/lib.rs:1008:33
[INFO] [stderr]      |
[INFO] [stderr] 955  |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stderr]      |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 959  |         state = match (state, whitespace, limit) {
[INFO] [stderr]      |                        ----- borrow occurs due to use of `state` in closure
[INFO] [stderr] ...
[INFO] [stderr] 1008 |     while cont && match state { B | C => true, A => false } {
[INFO] [stderr]      |                                 ^ use of borrowed `state`
[INFO] [stderr] 1009 |         machine(&mut cont, (fake_i, ' '));
[INFO] [stderr]      |         ------- borrow later used here
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]      = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]      = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/compiler.rs:552:33
[INFO] [stderr]     |
[INFO] [stderr] 552 |     fn scope(&mut self, f: &mut FnMut(&mut Compiler)) {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Compiler)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/compiler.rs:903:52
[INFO] [stderr]     |
[INFO] [stderr] 903 |     fn walk_classes<T>(&self, class: Name, f: &mut FnMut(&[TypeDeclaration<Name>]) -> Option<T>) -> Option<T> {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[TypeDeclaration<Name>]) -> Option<T>`
[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<Name>)>, Vec<usize>)>,
[INFO] [stderr] 356  | |     pub stack_size : usize,
[INFO] [stderr] ...    |
[INFO] [stderr] 361  | |     context: Vec<Constraint<Name>>
[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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/typecheck.rs:92:26
[INFO] [stderr]    |
[INFO] [stderr] 92 |     assemblies: Vec<&'a (DataTypes + 'a)>,
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn DataTypes + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:139:39
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn each_binding(&self, func: &mut FnMut(&[Binding<Name>], (usize, usize)));
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Binding<Name>], (usize, usize))`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:156:39
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn each_binding(&self, func: &mut FnMut(&[Binding<Name>], (usize, usize))) {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Binding<Name>], (usize, usize))`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:197:39
[INFO] [stderr]     |
[INFO] [stderr] 197 |     fn each_binding(&self, func: &mut FnMut(&[Binding<Name>], (usize, usize))) {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Binding<Name>], (usize, usize))`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:270:44
[INFO] [stderr]     |
[INFO] [stderr] 270 |     pub fn add_types(&mut self, types: &'a DataTypes) {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn DataTypes`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:889:30
[INFO] [stderr]     |
[INFO] [stderr] 889 |             , bindings: &mut Bindings
[INFO] [stderr]     |                              ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:957:84
[INFO] [stderr]     |
[INFO] [stderr] 957 |     fn typecheck_local_bindings(&mut self, subs: &mut Substitution, bindings: &mut Bindings) {
[INFO] [stderr]     |                                                                                    ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/typecheck.rs:962:107
[INFO] [stderr]     |
[INFO] [stderr] 962 |     fn typecheck_global_bindings(&mut self, start_var_age: isize, subs: &mut Substitution, bindings: &mut Bindings) {
[INFO] [stderr]     |                                                                                                           ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:1463:27
[INFO] [stderr]      |
[INFO] [stderr] 1463 | fn build_graph(bindings: &Bindings) -> Graph<(usize, usize)> {
[INFO] [stderr]      |                           ^^^^^^^^ help: use `dyn`: `dyn Bindings`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:1514:48
[INFO] [stderr]      |
[INFO] [stderr] 1514 | fn each_type_<Id>(typ: &Type<Id>, var_fn: &mut FnMut(&TypeVariable), op_fn: &mut FnMut(&TypeConstructor<Id>)) {
[INFO] [stderr]      |                                                ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&TypeVariable)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/typecheck.rs:1514:82
[INFO] [stderr]      |
[INFO] [stderr] 1514 | fn each_type_<Id>(typ: &Type<Id>, var_fn: &mut FnMut(&TypeVariable), op_fn: &mut FnMut(&TypeConstructor<Id>)) {
[INFO] [stderr]      |                                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&TypeConstructor<Id>)`
[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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core.rs:411:38
[INFO] [stderr]     |
[INFO] [stderr] 411 |         functions_in_class: &'a mut (FnMut(Name) -> (&'a TypeVariable, &'a [TypeDeclaration<Name>]) + 'a)
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Name) -> (&'a TypeVariable, &'a [TypeDeclaration<Name>]) + 'a`
[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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lambda_lift.rs:18:58
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn each_pattern_variables(pattern: &Pattern<Id>, f: &mut FnMut(&Name)) {
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Name)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/renamer.rs:159:81
[INFO] [stderr]     |
[INFO] [stderr] 159 |     fn import_globals<T: Eq + Copy>(&mut self, module: &Module<T>, str_fn: &mut FnMut(T) -> InternedStr, uid: usize) {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(T) -> InternedStr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/deriving.rs:93:99
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn make_binop(&mut self, class: &str, funcname: &str, data: &DataDefinition<Name>, func: &mut FnMut(&mut DerivingGen, Id<Name>, Id<Name>) -> Expr<Id<Name>>) -> Binding<Id<Name>> {
[INFO] [stderr]    |                                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut DerivingGen, Id<Name>, Id<Name>) -> Expr<Id<Name>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deriving.rs:132:97
[INFO] [stderr]     |
[INFO] [stderr] 132 |     fn match_same_constructors(&mut self, data: &DataDefinition<Name>, id_r: &Id<Name>, f: &mut FnMut(&mut DerivingGen, &[Id<Name>], &[Id<Name>]) -> Expr<Id<Name>>) -> Vec<Alternative<Id<Name>>> {
[INFO] [stderr]     |                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut DerivingGen, &[Id<Name>], &[Id<Name>]) -> Expr<Id<Name>>`
[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] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/repl.rs:33:36
[INFO] [stderr]    |
[INFO] [stderr] 33 |     type_env.add_types(prelude as &DataTypes);
[INFO] [stderr]    |                                    ^^^^^^^^^ help: use `dyn`: `dyn DataTypes`
[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" "080fa877982d0298ce988d1a55610d43fb7b18a101f4d9cad3d0dba94d07ecf2"`
[INFO] running `"docker" "rm" "-f" "080fa877982d0298ce988d1a55610d43fb7b18a101f4d9cad3d0dba94d07ecf2"`
[INFO] [stdout] 080fa877982d0298ce988d1a55610d43fb7b18a101f4d9cad3d0dba94d07ecf2