[INFO] fetching crate devise_core 0.2.0...
[INFO] checking devise_core-0.2.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate devise_core 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate devise_core 0.2.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate devise_core 0.2.0
[INFO] finished tweaking crates.io crate devise_core 0.2.0
[INFO] tweaked toml for crates.io crate devise_core 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9bf24e3cadc270eb15436303fa8a86a636ad16b062208f51099d3bc85caf730
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a9bf24e3cadc270eb15436303fa8a86a636ad16b062208f51099d3bc85caf730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9bf24e3cadc270eb15436303fa8a86a636ad16b062208f51099d3bc85caf730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9bf24e3cadc270eb15436303fa8a86a636ad16b062208f51099d3bc85caf730", kill_on_drop: false }`
[INFO] [stdout] a9bf24e3cadc270eb15436303fa8a86a636ad16b062208f51099d3bc85caf730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20ec56c4f743dcd3ce5d88e26c101239dd9d293872e75ddccff8d3a3b788d7ef
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "20ec56c4f743dcd3ce5d88e26c101239dd9d293872e75ddccff8d3a3b788d7ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking devise_core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic, proc_macro_span)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(crate_visibility_modifier)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(concat_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic, proc_macro_span)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(crate_visibility_modifier)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(concat_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:71:31
[INFO] [stdout]    |
[INFO] [stdout] 71 |     crate enum_validator: Box<Fn(&DeriveGenerator, Enum) -> Result<()>>,
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Enum) -> Result<()>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:72:33
[INFO] [stdout]    |
[INFO] [stdout] 72 |     crate struct_validator: Box<Fn(&DeriveGenerator, Struct) -> Result<()>>,
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Struct) -> Result<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:73:35
[INFO] [stdout]    |
[INFO] [stdout] 73 |     crate generics_validator: Box<Fn(&DeriveGenerator, &::syn::Generics) -> Result<()>>,
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, &::syn::Generics) -> Result<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:74:33
[INFO] [stdout]    |
[INFO] [stdout] 74 |     crate fields_validator: Box<Fn(&DeriveGenerator, Fields) -> Result<()>>,
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Fields) -> Result<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:75:43
[INFO] [stdout]    |
[INFO] [stdout] 75 |     crate type_generic_mapper: Option<Box<Fn(&DeriveGenerator, &syn::Ident, &syn::TypeParam) -> TokenStream2>>,
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, &syn::Ident, &syn::TypeParam) -> TokenStream2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:77:30
[INFO] [stdout]    |
[INFO] [stdout] 77 |     crate functions: Vec<Box<Fn(&DeriveGenerator, TokenStream2) -> TokenStream2>>,
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, TokenStream2) -> TokenStream2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:78:33
[INFO] [stdout]    |
[INFO] [stdout] 78 |     crate enum_mappers: Vec<Box<Fn(&DeriveGenerator, Enum) -> MapResult>>,
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Enum) -> MapResult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:79:35
[INFO] [stdout]    |
[INFO] [stdout] 79 |     crate struct_mappers: Vec<Box<Fn(&DeriveGenerator, Struct) -> MapResult>>,
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Struct) -> MapResult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:80:36
[INFO] [stdout]    |
[INFO] [stdout] 80 |     crate variant_mappers: Vec<Box<Fn(&DeriveGenerator, Variant) -> MapResult>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Variant) -> MapResult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:71:31
[INFO] [stdout]    |
[INFO] [stdout] 71 |     crate enum_validator: Box<Fn(&DeriveGenerator, Enum) -> Result<()>>,
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Enum) -> Result<()>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:81:35
[INFO] [stdout]    |
[INFO] [stdout] 81 |     crate fields_mappers: Vec<Box<Fn(&DeriveGenerator, Fields) -> MapResult>>,
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Fields) -> MapResult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:72:33
[INFO] [stdout]    |
[INFO] [stdout] 72 |     crate struct_validator: Box<Fn(&DeriveGenerator, Struct) -> Result<()>>,
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Struct) -> Result<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:82:34
[INFO] [stdout]    |
[INFO] [stdout] 82 |     crate field_mappers: Vec<Box<Fn(&DeriveGenerator, Field) -> MapResult>>,
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Field) -> MapResult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:73:35
[INFO] [stdout]    |
[INFO] [stdout] 73 |     crate generics_validator: Box<Fn(&DeriveGenerator, &::syn::Generics) -> Result<()>>,
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, &::syn::Generics) -> Result<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:74:33
[INFO] [stdout]    |
[INFO] [stdout] 74 |     crate fields_validator: Box<Fn(&DeriveGenerator, Fields) -> Result<()>>,
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Fields) -> Result<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:75:43
[INFO] [stdout]    |
[INFO] [stdout] 75 |     crate type_generic_mapper: Option<Box<Fn(&DeriveGenerator, &syn::Ident, &syn::TypeParam) -> TokenStream2>>,
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, &syn::Ident, &syn::TypeParam) -> TokenStream2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:77:30
[INFO] [stdout]    |
[INFO] [stdout] 77 |     crate functions: Vec<Box<Fn(&DeriveGenerator, TokenStream2) -> TokenStream2>>,
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, TokenStream2) -> TokenStream2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:78:33
[INFO] [stdout]    |
[INFO] [stdout] 78 |     crate enum_mappers: Vec<Box<Fn(&DeriveGenerator, Enum) -> MapResult>>,
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Enum) -> MapResult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:79:35
[INFO] [stdout]    |
[INFO] [stdout] 79 |     crate struct_mappers: Vec<Box<Fn(&DeriveGenerator, Struct) -> MapResult>>,
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Struct) -> MapResult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:80:36
[INFO] [stdout]    |
[INFO] [stdout] 80 |     crate variant_mappers: Vec<Box<Fn(&DeriveGenerator, Variant) -> MapResult>>,
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Variant) -> MapResult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:81:35
[INFO] [stdout]    |
[INFO] [stdout] 81 |     crate fields_mappers: Vec<Box<Fn(&DeriveGenerator, Fields) -> MapResult>>,
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Fields) -> MapResult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generator.rs:55:42
[INFO] [stdout]     |
[INFO] [stdout] 55  |               pub fn $get_f(&self) -> &Box<Fn(&DeriveGenerator, $type) -> MapResult> {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, $type) -> MapResult`
[INFO] [stdout] ...
[INFO] [stdout] 193 | /     mappers! {
[INFO] [stdout] 194 | |         (map_struct, try_map_struct, struct_mapper): Struct, struct_mappers,
[INFO] [stdout] 195 | |         (map_enum, try_map_enum, enum_mapper): Enum, enum_mappers,
[INFO] [stdout] 196 | |         (map_variant, try_map_variant, variant_mapper): Variant, variant_mappers,
[INFO] [stdout] 197 | |         (map_fields, try_map_fields, fields_mapper): Fields, fields_mappers,
[INFO] [stdout] 198 | |         (map_field, try_map_field, field_mapper): Field, field_mappers
[INFO] [stdout] 199 | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/generator.rs:82:34
[INFO] [stdout]    |
[INFO] [stdout] 82 |     crate field_mappers: Vec<Box<Fn(&DeriveGenerator, Field) -> MapResult>>,
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, Field) -> MapResult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generator.rs:55:42
[INFO] [stdout]     |
[INFO] [stdout] 55  |               pub fn $get_f(&self) -> &Box<Fn(&DeriveGenerator, $type) -> MapResult> {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&DeriveGenerator, $type) -> MapResult`
[INFO] [stdout] ...
[INFO] [stdout] 193 | /     mappers! {
[INFO] [stdout] 194 | |         (map_struct, try_map_struct, struct_mapper): Struct, struct_mappers,
[INFO] [stdout] 195 | |         (map_enum, try_map_enum, enum_mapper): Enum, enum_mappers,
[INFO] [stdout] 196 | |         (map_variant, try_map_variant, variant_mapper): Variant, variant_mappers,
[INFO] [stdout] 197 | |         (map_fields, try_map_fields, fields_mapper): Fields, fields_mappers,
[INFO] [stdout] 198 | |         (map_field, try_map_field, field_mapper): Field, field_mappers
[INFO] [stdout] 199 | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `devise_core`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors; 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "20ec56c4f743dcd3ce5d88e26c101239dd9d293872e75ddccff8d3a3b788d7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ec56c4f743dcd3ce5d88e26c101239dd9d293872e75ddccff8d3a3b788d7ef", kill_on_drop: false }`
[INFO] [stdout] 20ec56c4f743dcd3ce5d88e26c101239dd9d293872e75ddccff8d3a3b788d7ef
