[INFO] crate reflective 0.1.0 is already in cache
[INFO] extracting crate reflective 0.1.0 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/reflective/0.1.0
[INFO] extracting crate reflective 0.1.0 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/reflective/0.1.0
[INFO] validating manifest of reflective-0.1.0 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of reflective-0.1.0 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing reflective-0.1.0
[INFO] finished frobbing reflective-0.1.0
[INFO] frobbed toml for reflective-0.1.0 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/reflective/0.1.0/Cargo.toml
[INFO] started frobbing reflective-0.1.0
[INFO] finished frobbing reflective-0.1.0
[INFO] frobbed toml for reflective-0.1.0 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/reflective/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking reflective-0.1.0 against try#8ec8125bea94852768b56958f05da47666c21ab0 for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-1/try#8ec8125bea94852768b56958f05da47666c21ab0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/reflective/0.1.0:/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=forbid" "-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" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a64399196fa8c2f616b95d8b2d9a5aa28ac873887f103a427f21c54b60cb25c5
[INFO] running `"docker" "start" "-a" "a64399196fa8c2f616b95d8b2d9a5aa28ac873887f103a427f21c54b60cb25c5"`
[INFO] [stderr]    Compiling reflective v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `struct_body`
[INFO] [stderr]   --> src/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let struct_body : TokenStream;
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_struct_body`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `datatype`
[INFO] [stderr]   --> src/lib.rs:89:16
[INFO] [stderr]    |
[INFO] [stderr] 89 |     for (field,datatype) in &struct_props {
[INFO] [stderr]    |                ^^^^^^^^ help: consider prefixing with an underscore: `_datatype`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `struct_body`
[INFO] [stderr]   --> src/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let struct_body : TokenStream;
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_struct_body`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `datatype`
[INFO] [stderr]   --> src/lib.rs:89:16
[INFO] [stderr]    |
[INFO] [stderr] 89 |     for (field,datatype) in &struct_props {
[INFO] [stderr]    |                ^^^^^^^^ help: consider prefixing with an underscore: `_datatype`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `struct_body`
[INFO] [stderr]   --> src/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let struct_body : TokenStream;
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_struct_body`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `datatype`
[INFO] [stderr]   --> src/lib.rs:89:16
[INFO] [stderr]    |
[INFO] [stderr] 89 |     for (field,datatype) in &struct_props {
[INFO] [stderr]    |                ^^^^^^^^ help: consider prefixing with an underscore: `_datatype`
[INFO] [stderr] 
[INFO] [stdout] pub struct TestStruct {
[INFO] [stdout]     name: &'static str,
[INFO] [stdout] }
[INFO] [stdout] impl TestStruct {
[INFO] [stdout]      fn get_field<T: Copy + 'static>(s: &TestStruct, field: &str) -> T {
[INFO] [stdout]         let a : &dyn std::any::Any = { match field 
[INFO] [stdout] 
{"name" => &(s.name) as &dyn std::any::Any,
[INFO] [stdout] 
_ => panic!("Invalid field."), }};
[INFO] [stdout]         *(a.downcast_ref::<T>().unwrap())
[INFO] [stdout]     }
[INFO] [stdout] 
[INFO] [stdout]      fn set_field<T: Copy + 'static>(s: &mut TestStruct, field: &str, val : T) {
[INFO] [stdout]         match field {
[INFO] [stdout]             "name" => { s.name = ((&val as &dyn std::any::Any).downcast_ref::<&'static str>().unwrap()).to_owned(); },
[INFO] [stdout] _ => { panic!("invalid field"); } }
[INFO] [stdout]     }
[INFO] [stdout] }
[INFO] [stdout] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/fields.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut res : &str = TestStruct::get_field(s, "name");
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `"docker" "inspect" "a64399196fa8c2f616b95d8b2d9a5aa28ac873887f103a427f21c54b60cb25c5"`
[INFO] running `"docker" "rm" "-f" "a64399196fa8c2f616b95d8b2d9a5aa28ac873887f103a427f21c54b60cb25c5"`
[INFO] [stdout] a64399196fa8c2f616b95d8b2d9a5aa28ac873887f103a427f21c54b60cb25c5