[INFO] updating cached repository U007D/def_err
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/U007D/def_err
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/U007D/def_err" "work/ex/beta-1.38-1/sources/1.37.0/gh/U007D/def_err"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/U007D/def_err'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/U007D/def_err" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/U007D/def_err"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/U007D/def_err'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ca088afdfd2507f46713013a13aabc68a2df0b49
[INFO] sha for GitHub repo U007D/def_err: ca088afdfd2507f46713013a13aabc68a2df0b49
[INFO] validating manifest of U007D/def_err 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 U007D/def_err 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 U007D/def_err
[INFO] finished frobbing U007D/def_err
[INFO] frobbed toml for U007D/def_err written to work/ex/beta-1.38-1/sources/1.37.0/gh/U007D/def_err/Cargo.toml
[INFO] started frobbing U007D/def_err
[INFO] finished frobbing U007D/def_err
[INFO] frobbed toml for U007D/def_err written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/U007D/def_err/Cargo.toml
[INFO] crate U007D/def_err 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 U007D/def_err 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/U007D/def_err:/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] 057e1f432c676ec3ff933403a9ce10688372bd11b4097f1a1f8aebcfd2b07dcd
[INFO] running `"docker" "start" "-a" "057e1f432c676ec3ff933403a9ce10688372bd11b4097f1a1f8aebcfd2b07dcd"`
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling def_err v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `,`
[INFO] [stderr]   --> src/main.rs:15:45
[INFO] [stderr]    |
[INFO] [stderr] 15 |             $(parse_variant!($err_variants)),+;
[INFO] [stderr]    |                                             ^ expected one of `.`, `;`, `?`, `}`, or an operator here
[INFO] [stderr] 
[INFO] [stderr] error: unexpected end of macro invocation
[INFO] [stderr]   --> src/main.rs:98:19
[INFO] [stderr]    |
[INFO] [stderr] 36 | macro_rules! parse_variant {
[INFO] [stderr]    | -------------------------- when calling this macro
[INFO] [stderr] ...
[INFO] [stderr] 98 |         SampleErr1,
[INFO] [stderr]    |                   ^ missing tokens in macro arguments
[INFO] [stderr] 
[INFO] [stderr] note: trace_macro
[INFO] [stderr]    --> src/main.rs:97:5
[INFO] [stderr]     |
[INFO] [stderr] 97  | /     def_err! {
[INFO] [stderr] 98  | |         SampleErr1,
[INFO] [stderr] 99  | |         SampleErr2(foo: u64, bar: f32),
[INFO] [stderr] 100 | |         SampleErr3("my message"),
[INFO] [stderr] ...   |
[INFO] [stderr] 105 | |         SampleErr8(),
[INFO] [stderr] 106 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: expanding `def_err! { SampleErr1 , SampleErr2 ( foo : u64 , bar : f32 ) , SampleErr3 ( "my message"
[INFO] [stderr]             ) , SampleErr4 ( foo : u32 , bar : f64 ; "another message: {}, {}" , foo , bar
[INFO] [stderr]             ) , SampleErr5 ( { std :: fmt :: Error } ) , SampleErr6 (
[INFO] [stderr]             foo : u8 , bar : String ; { std :: fmt :: Error } ) , SampleErr7 (
[INFO] [stderr]             baz : i64 ; { std :: fmt :: Error } , "and another message (baz: {})" , baz )
[INFO] [stderr]             , SampleErr8 (  ) , }`
[INFO] [stderr]     = note: to `def_err ! (
[INFO] [stderr]             Error {
[INFO] [stderr]             SampleErr1 , SampleErr2 ( foo : u64 , bar : f32 ) , SampleErr3 ( "my message"
[INFO] [stderr]             ) , SampleErr4 ( foo : u32 , bar : f64 ; "another message: {}, {}" , foo , bar
[INFO] [stderr]             ) , SampleErr5 ( { std :: fmt :: Error } ) , SampleErr6 (
[INFO] [stderr]             foo : u8 , bar : String ; { std :: fmt :: Error } ) , SampleErr7 (
[INFO] [stderr]             baz : i64 ; { std :: fmt :: Error } , "and another message (baz: {})" , baz )
[INFO] [stderr]             , SampleErr8 (  ) , } ) ;`
[INFO] [stderr]     = note: expanding `def_err! { Error {
[INFO] [stderr]             SampleErr1 , SampleErr2 ( foo : u64 , bar : f32 ) , SampleErr3 ( "my message"
[INFO] [stderr]             ) , SampleErr4 ( foo : u32 , bar : f64 ; "another message: {}, {}" , foo , bar
[INFO] [stderr]             ) , SampleErr5 ( { std :: fmt :: Error } ) , SampleErr6 (
[INFO] [stderr]             foo : u8 , bar : String ; { std :: fmt :: Error } ) , SampleErr7 (
[INFO] [stderr]             baz : i64 ; { std :: fmt :: Error } , "and another message (baz: {})" , baz )
[INFO] [stderr]             , SampleErr8 (  ) , } }`
[INFO] [stderr]     = note: to `parse_variant ! ( SampleErr1 ) , parse_variant ! ( , ) , parse_variant ! (
[INFO] [stderr]             SampleErr2 ) , parse_variant ! ( ( foo : u64 , bar : f32 ) ) , parse_variant !
[INFO] [stderr]             ( , ) , parse_variant ! ( SampleErr3 ) , parse_variant ! ( ( "my message" ) )
[INFO] [stderr]             , parse_variant ! ( , ) , parse_variant ! ( SampleErr4 ) , parse_variant ! (
[INFO] [stderr]             ( foo : u32 , bar : f64 ; "another message: {}, {}" , foo , bar ) ) ,
[INFO] [stderr]             parse_variant ! ( , ) , parse_variant ! ( SampleErr5 ) , parse_variant ! (
[INFO] [stderr]             ( { std :: fmt :: Error } ) ) , parse_variant ! ( , ) , parse_variant ! (
[INFO] [stderr]             SampleErr6 ) , parse_variant ! (
[INFO] [stderr]             ( foo : u8 , bar : String ; { std :: fmt :: Error } ) ) , parse_variant ! ( ,
[INFO] [stderr]             ) , parse_variant ! ( SampleErr7 ) , parse_variant ! (
[INFO] [stderr]             ( baz : i64 ; { std :: fmt :: Error } , "and another message (baz: {})" , baz
[INFO] [stderr]             ) ) , parse_variant ! ( , ) , parse_variant ! ( SampleErr8 ) , parse_variant !
[INFO] [stderr]             ( (  ) ) , parse_variant ! ( , ) ;`
[INFO] [stderr]     = note: expanding `parse_variant! { SampleErr1 }`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(trace_macros)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/main.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | / macro_rules! parse_args {
[INFO] [stderr] 51 | |     // Terminate processing when nothing left to parse
[INFO] [stderr] 52 | | //    () => {};
[INFO] [stderr] 53 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 73 | |     };
[INFO] [stderr] 74 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/main.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | / macro_rules! parse_extparams {
[INFO] [stderr] 77 | |     // Terminate processing when nothing left to parse
[INFO] [stderr] 78 | |     () => {};
[INFO] [stderr] 79 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 93 | |
[INFO] [stderr] 94 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `def_err`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "057e1f432c676ec3ff933403a9ce10688372bd11b4097f1a1f8aebcfd2b07dcd"`
[INFO] running `"docker" "rm" "-f" "057e1f432c676ec3ff933403a9ce10688372bd11b4097f1a1f8aebcfd2b07dcd"`
[INFO] [stdout] 057e1f432c676ec3ff933403a9ce10688372bd11b4097f1a1f8aebcfd2b07dcd