[INFO] crate reflective 0.1.0 is already in cache
[INFO] checking reflective-0.1.0 against try#85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 for pr-73323
[INFO] extracting crate reflective 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate reflective 0.1.0 on toolchain 85cc1486e1f000dce4bb8e1b3cfab2b654b102a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reflective 0.1.0
[INFO] finished tweaking crates.io crate reflective 0.1.0
[INFO] tweaked toml for crates.io crate reflective 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] deb07b6e0863910143ecccdc9f9db2606d12c8e33adb856a547c7e6e1a0de993
[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" "deb07b6e0863910143ecccdc9f9db2606d12c8e33adb856a547c7e6e1a0de993", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "deb07b6e0863910143ecccdc9f9db2606d12c8e33adb856a547c7e6e1a0de993", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deb07b6e0863910143ecccdc9f9db2606d12c8e33adb856a547c7e6e1a0de993", kill_on_drop: false }`
[INFO] [stdout] deb07b6e0863910143ecccdc9f9db2606d12c8e33adb856a547c7e6e1a0de993
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c1e1c11fc096956ce2c158b5cf2531f78c1c45bcfe6cc71c08e60d002159a1ba
[INFO] running `Command { std: "docker" "start" "-a" "c1e1c11fc096956ce2c158b5cf2531f78c1c45bcfe6cc71c08e60d002159a1ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling reflective v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `struct_body`
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let struct_body : TokenStream;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_body`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `datatype`
[INFO] [stdout]   --> src/lib.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |     for (field,datatype) in &struct_props {
[INFO] [stdout]    |                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_datatype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_body`
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let struct_body : TokenStream;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_body`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `datatype`
[INFO] [stdout]   --> src/lib.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |     for (field,datatype) in &struct_props {
[INFO] [stdout]    |                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_datatype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_body`
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let struct_body : TokenStream;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_body`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `datatype`
[INFO] [stdout]   --> src/lib.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |     for (field,datatype) in &struct_props {
[INFO] [stdout]    |                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_datatype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] pub struct TestStruct { name : & 'static str, }
[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] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/fields.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut res : &str = TestStruct::get_field(s, "name");
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `Command { std: "docker" "inspect" "c1e1c11fc096956ce2c158b5cf2531f78c1c45bcfe6cc71c08e60d002159a1ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1e1c11fc096956ce2c158b5cf2531f78c1c45bcfe6cc71c08e60d002159a1ba", kill_on_drop: false }`
[INFO] [stdout] c1e1c11fc096956ce2c158b5cf2531f78c1c45bcfe6cc71c08e60d002159a1ba