[INFO] crate json_macros 0.3.2 is already in cache
[INFO] extracting crate json_macros 0.3.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/json_macros/0.3.2
[INFO] extracting crate json_macros 0.3.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/json_macros/0.3.2
[INFO] validating manifest of json_macros-0.3.2 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 json_macros-0.3.2 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 json_macros-0.3.2
[INFO] removed 0 missing examples
[INFO] removed 1 missing tests
[INFO] finished frobbing json_macros-0.3.2
[INFO] frobbed toml for json_macros-0.3.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/json_macros/0.3.2/Cargo.toml
[INFO] started frobbing json_macros-0.3.2
[INFO] removed 0 missing examples
[INFO] removed 1 missing tests
[INFO] finished frobbing json_macros-0.3.2
[INFO] frobbed toml for json_macros-0.3.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/json_macros/0.3.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 json_macros-0.3.2 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/json_macros/0.3.2:/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] ffe530d4307a78f7a4569da4557cb42aec3394677ba9b4271cf229ed1e5bf10e
[INFO] running `"docker" "start" "-a" "ffe530d4307a78f7a4569da4557cb42aec3394677ba9b4271cf229ed1e5bf10e"`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/tests/tests.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling json_macros v0.3.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:1:30
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(plugin_registrar, quote)]
[INFO] [stderr]   |                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `syntax::codemap`
[INFO] [stderr]  --> src/plugin.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use syntax::codemap::Span;
[INFO] [stderr]   |             ^^^^^^^ could not find `codemap` in `syntax`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_expr!` in this scope
[INFO] [stderr]   --> src/plugin.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             quote_expr!(cx, {
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_expr!` in this scope
[INFO] [stderr]   --> src/plugin.rs:56:27
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 let key = quote_expr!(cx, {
[INFO] [stderr]    |                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_expr!` in this scope
[INFO] [stderr]   --> src/plugin.rs:67:33
[INFO] [stderr]    |
[INFO] [stderr] 67 |                 insertions.push(quote_expr!(cx, {
[INFO] [stderr]    |                                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_expr!` in this scope
[INFO] [stderr]   --> src/plugin.rs:71:24
[INFO] [stderr]    |
[INFO] [stderr] 71 |             let expr = quote_expr!(cx, {
[INFO] [stderr]    |                        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_expr!` in this scope
[INFO] [stderr]   --> src/plugin.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |             quote_expr!(cx, {{
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_expr!` in this scope
[INFO] [stderr]   --> src/plugin.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |             quote_expr!(cx, { ::rustc_serialize::json::Json::Null })
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find macro `quote_expr!` in this scope
[INFO] [stderr]   --> src/plugin.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |             quote_expr!(cx, {{
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `common` in `parse`
[INFO] [stderr]   --> src/plugin.rs:26:30
[INFO] [stderr]    |
[INFO] [stderr] 26 |             ::syntax::parse::common::SeqSep {
[INFO] [stderr]    |                              ^^^^^^ could not find `common` in `parse`
[INFO] [stderr] ...
[INFO] [stderr] 39 |             let exprs = parser.parse_seq_to_end(&r_bracket, comma_sep!(), |p| {
[INFO] [stderr]    |                                                             ------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `common` in `parse`
[INFO] [stderr]   --> src/plugin.rs:26:30
[INFO] [stderr]    |
[INFO] [stderr] 26 |             ::syntax::parse::common::SeqSep {
[INFO] [stderr]    |                              ^^^^^^ could not find `common` in `parse`
[INFO] [stderr] ...
[INFO] [stderr] 52 |             let kvs = parser.parse_seq_to_end(&r_brace, comma_sep!(), |p| {
[INFO] [stderr]    |                                                         ------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(plugin_registrar, quote)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(rustc_private)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0023]: this pattern has 1 field, but the corresponding tuple variant has 2 fields
[INFO] [stderr]   --> src/plugin.rs:85:10
[INFO] [stderr]    |
[INFO] [stderr] 85 |         &Token::Ident(id) if id.name.as_str() == "null" => {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^ expected 2 fields, found 1
[INFO] [stderr] 
[INFO] [stderr] error[E0614]: type `syntax::ast::Name` cannot be dereferenced
[INFO] [stderr]   --> src/plugin.rs:54:26
[INFO] [stderr]    |
[INFO] [stderr] 54 |                 let s = &*istr;
[INFO] [stderr]    |                          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `parse_pat_literal_maybe_minus` found for type `&mut syntax::parse::parser::Parser<'_>` in the current scope
[INFO] [stderr]   --> src/plugin.rs:90:31
[INFO] [stderr]    |
[INFO] [stderr] 90 |             let expr = parser.parse_pat_literal_maybe_minus().ok().unwrap();
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 16 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0023, E0432, E0433, E0554, E0557, E0599, E0614.
[INFO] [stderr] For more information about an error, try `rustc --explain E0023`.
[INFO] [stderr] error: Could not compile `json_macros`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ffe530d4307a78f7a4569da4557cb42aec3394677ba9b4271cf229ed1e5bf10e"`
[INFO] running `"docker" "rm" "-f" "ffe530d4307a78f7a4569da4557cb42aec3394677ba9b4271cf229ed1e5bf10e"`
[INFO] [stdout] ffe530d4307a78f7a4569da4557cb42aec3394677ba9b4271cf229ed1e5bf10e