[INFO] crate auto-args 0.2.6 is already in cache
[INFO] checking auto-args-0.2.6 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate auto-args 0.2.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate auto-args 0.2.6 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate auto-args 0.2.6
[INFO] finished tweaking crates.io crate auto-args 0.2.6
[INFO] tweaked toml for crates.io crate auto-args 0.2.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a7437f0a7c27ca88bf866ae54a8dd79639a9aa16f7dc854e5b6449c9a38e04c1
[INFO] running `"docker" "start" "-a" "a7437f0a7c27ca88bf866ae54a8dd79639a9aa16f7dc854e5b6449c9a38e04c1"`
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]    Compiling auto-args-derive v0.1.4
[INFO] [stderr]     Checking meval v0.2.0
[INFO] [stderr]     Checking auto-args v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/options.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/unit-struct.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/nested.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/enum.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `First_World` should have an upper camel case name
[INFO] [stderr]   --> tests/enum.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         First_World,
[INFO] [stderr]    |         ^^^^^^^^^^^ help: convert the identifier to upper camel case: `FirstWorld`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/underscore-in-optional-field.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/create-guide.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> tests/create-guide.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     /// This gives the following usage.
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 72 |     strings.push(Foo::usage());
[INFO] [stderr]    |     -------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> tests/create-guide.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     /// and the following help message.
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 75 |     strings.push(Foo::help());
[INFO] [stderr]    |     ------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> tests/create-guide.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     /// This gives the following usage.
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 94 |     strings.push(Help::usage());
[INFO] [stderr]    |     --------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> tests/create-guide.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     /// and the following help message.
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 97 |     strings.push(Help::help());
[INFO] [stderr]    |     -------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> tests/create-guide.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     /// This gives the following usage.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 121 |     strings.push(Flags::help());
[INFO] [stderr]     |     --------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> tests/create-guide.rs:144:5
[INFO] [stderr]     |
[INFO] [stderr] 144 |     /// This gives the following usage.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 145 |     strings.push(Types::help());
[INFO] [stderr]     |     --------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> tests/create-guide.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     /// This gives the following usage.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 174 |     strings.push(Optional::help());
[INFO] [stderr]     |     ------------------------------ rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> tests/create-guide.rs:201:5
[INFO] [stderr]     |
[INFO] [stderr] 201 |     /// This gives the following usage.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 202 |     strings.push(Exclusive::usage());
[INFO] [stderr]     |     -------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> tests/create-guide.rs:204:5
[INFO] [stderr]     |
[INFO] [stderr] 204 |     /// and the following help message.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 205 |     strings.push(Exclusive::help());
[INFO] [stderr]     |     ------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> tests/create-guide.rs:246:5
[INFO] [stderr]     |
[INFO] [stderr] 246 |     /// This gives the following usage.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 247 |     strings.push(Nested::help());
[INFO] [stderr]     |     ---------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> tests/create-guide.rs:278:5
[INFO] [stderr]     |
[INFO] [stderr] 278 |     /// This gives the following usage.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 279 |     strings.push(Flattened::usage());
[INFO] [stderr]     |     -------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> tests/create-guide.rs:281:5
[INFO] [stderr]     |
[INFO] [stderr] 281 |     /// and the following help message.
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 282 |     strings.push(Flattened::help());
[INFO] [stderr]     |     ------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> tests/create-guide.rs:284:5
[INFO] [stderr]     |
[INFO] [stderr] 284 | /     /// This may be a good idea if `MyConfig` and `YourConfig` are
[INFO] [stderr] 285 | |     /// implementation details that your user need not be aware of.
[INFO] [stderr] 286 | |
[INFO] [stderr] 287 | |     /// ## Other possibilities
[INFO] [stderr] ...   |
[INFO] [stderr] 302 | |     /// an issue on github if there is a type that you would like to
[INFO] [stderr] 303 | |     /// have supported by auto_args.  Pull requests are most welcome.
[INFO] [stderr]     | |_____________________________________________________________________^
[INFO] [stderr] 304 | 
[INFO] [stderr] 305 |       strings.reverse();
[INFO] [stderr]     |       ----------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/deeply-nested-with-underscores.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `foo`
[INFO] [stderr]   --> tests/create-guide.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |         foo: bool,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `verbose`
[INFO] [stderr]   --> tests/create-guide.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         verbose: bool,
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `T`
[INFO] [stderr]   --> tests/create-guide.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         T: bool,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `verbose`
[INFO] [stderr]    --> tests/create-guide.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         verbose: bool,
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `blue_is_nice_`
[INFO] [stderr]    --> tests/create-guide.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         blue_is_nice_: bool,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `min_T`
[INFO] [stderr]    --> tests/create-guide.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         min_T: bool,
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]    --> tests/create-guide.rs:137:9
[INFO] [stderr]     |
[INFO] [stderr] 137 |         name: String,
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `T`
[INFO] [stderr]    --> tests/create-guide.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |         T: f64,
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `directory`
[INFO] [stderr]    --> tests/create-guide.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 |         directory: std::path::PathBuf,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]    --> tests/create-guide.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         name: Option<String>,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]    --> tests/create-guide.rs:189:13
[INFO] [stderr]     |
[INFO] [stderr] 189 |             a: String,
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]    --> tests/create-guide.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |             b: String,
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]    --> tests/create-guide.rs:233:9
[INFO] [stderr]     |
[INFO] [stderr] 233 |         x: f64, y: f64,
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]    --> tests/create-guide.rs:233:17
[INFO] [stderr]     |
[INFO] [stderr] 233 |         x: f64, y: f64,
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `position`
[INFO] [stderr]    --> tests/create-guide.rs:242:9
[INFO] [stderr]     |
[INFO] [stderr] 242 |         position: Vec2d,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `velocity`
[INFO] [stderr]    --> tests/create-guide.rs:243:9
[INFO] [stderr]     |
[INFO] [stderr] 243 |         velocity: Vec2d,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]    --> tests/create-guide.rs:265:9
[INFO] [stderr]     |
[INFO] [stderr] 265 |         name: String,
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `address`
[INFO] [stderr]    --> tests/create-guide.rs:270:9
[INFO] [stderr]     |
[INFO] [stderr] 270 |         address: String,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.12s
[INFO] running `"docker" "inspect" "a7437f0a7c27ca88bf866ae54a8dd79639a9aa16f7dc854e5b6449c9a38e04c1"`
[INFO] running `"docker" "rm" "-f" "a7437f0a7c27ca88bf866ae54a8dd79639a9aa16f7dc854e5b6449c9a38e04c1"`
[INFO] [stdout] a7437f0a7c27ca88bf866ae54a8dd79639a9aa16f7dc854e5b6449c9a38e04c1
