[INFO] fetching crate dyn_struct2 0.1.0...
[INFO] checking dyn_struct2-0.1.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate dyn_struct2 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate dyn_struct2 0.1.0 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dyn_struct2 0.1.0
[INFO] finished tweaking crates.io crate dyn_struct2 0.1.0
[INFO] tweaked toml for crates.io crate dyn_struct2 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.60)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dyn_struct_derive2 v0.1.0
[INFO] [stderr]   Downloaded transmute v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 515c9dd29e036cac166892c6aada647669991e90e182027e0a24eb4494e0046d
[INFO] running `Command { std: "docker" "start" "-a" "515c9dd29e036cac166892c6aada647669991e90e182027e0a24eb4494e0046d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "515c9dd29e036cac166892c6aada647669991e90e182027e0a24eb4494e0046d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "515c9dd29e036cac166892c6aada647669991e90e182027e0a24eb4494e0046d", kill_on_drop: false }`
[INFO] [stdout] 515c9dd29e036cac166892c6aada647669991e90e182027e0a24eb4494e0046d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7741214856932571c930b1241d1822f7d781f42687095e5bf8a482afb171e4c
[INFO] running `Command { std: "docker" "start" "-a" "e7741214856932571c930b1241d1822f7d781f42687095e5bf8a482afb171e4c", kill_on_drop: false }`
[INFO] [stderr]     Checking transmute v0.1.1
[INFO] [stderr]     Checking dyn_struct2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/dyn_arg.rs:53:5
[INFO] [stdout]     |
[INFO] [stdout] 53  |     ::std::mem::forget(val);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^---^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        argument has type `[u64; 4]`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:125:51
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let mixed = DynStruct::new((true, 32u16), dyn_arg!(tail));
[INFO] [stdout]     |                                                   -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(forgetting_copy_types)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `dyn_arg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/dyn_arg.rs:53:5
[INFO] [stdout]     |
[INFO] [stdout] 53  |     ::std::mem::forget(val);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^---^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        argument has type `[u64; 4]`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:133:51
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let mixed = DynStruct::new((true, 32u16), dyn_arg!(tail) as DynArg<[u64]>);
[INFO] [stdout]     |                                                   -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `dyn_arg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/dyn_arg.rs:53:5
[INFO] [stdout]     |
[INFO] [stdout] 53  |     ::std::mem::forget(val);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^---^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        argument has type `[(); 2]`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:141:39
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let zero = DynStruct::new((), dyn_arg!(tail));
[INFO] [stdout]     |                                       -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `dyn_arg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/dyn_arg.rs:53:5
[INFO] [stdout]     |
[INFO] [stdout] 53  |     ::std::mem::forget(val);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^---^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        argument has type `[u32; 4]`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:174:54
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let mixed = DynStruct::new((false, 50usize), dyn_arg!(tail) as DynArg<[u32]>);
[INFO] [stdout]     |                                                      -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: this warning originates in the macro `dyn_arg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `dyn_struct_derive2`
[INFO] [stdout]  --> tests/derive.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use dyn_struct_derive2::DynStruct;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `dyn_struct_derive2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `custom::Foo` in the current scope
[INFO] [stdout]   --> tests/derive.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 8  |     struct Foo {
[INFO] [stdout]    |     ---------- function or associated item `new` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     let foo = Foo::new(14, dyn_arg!([1, 2, 3, 4]));
[INFO] [stdout]    |                    ^^^ function or associated item not found in `Foo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `generic::Foo` in the current scope
[INFO] [stdout]   --> tests/derive.rs:28:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |     struct Foo<'a, T: Copy, U: Copy> {
[INFO] [stdout]    |     -------------------------------- function or associated item `new` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     let foo = Foo::new(true, "hello", dyn_arg!([1, 2, 3, 4]));
[INFO] [stdout]    |                    ^^^ function or associated item not found in `Foo<'_, _, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `MyDynamicType` in the current scope
[INFO] [stdout]   --> tests/derive.rs:44:50
[INFO] [stdout]    |
[INFO] [stdout] 38 |     struct MyDynamicType {
[INFO] [stdout]    |     -------------------- function or associated item `new` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 44 |     let foo: Box<MyDynamicType> = MyDynamicType::new(true, 123, dyn_arg!([4, 5, 6, 7, 8]));
[INFO] [stdout]    |                                                  ^^^ function or associated item not found in `MyDynamicType`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dyn_struct2` (test "derive") due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "e7741214856932571c930b1241d1822f7d781f42687095e5bf8a482afb171e4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7741214856932571c930b1241d1822f7d781f42687095e5bf8a482afb171e4c", kill_on_drop: false }`
[INFO] [stdout] e7741214856932571c930b1241d1822f7d781f42687095e5bf8a482afb171e4c
