[INFO] fetching crate wrappr 1.2.0...
[INFO] testing wrappr-1.2.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate wrappr 1.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate wrappr 1.2.0
[INFO] finished tweaking crates.io crate wrappr 1.2.0
[INFO] tweaked toml for crates.io crate wrappr 1.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wrappr 1.2.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2241317f1c595e04a9026799f71b29a5e33d4774c730e8aa188db3e1dcf956b8
[INFO] running `Command { std: "docker" "start" "-a" "2241317f1c595e04a9026799f71b29a5e33d4774c730e8aa188db3e1dcf956b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2241317f1c595e04a9026799f71b29a5e33d4774c730e8aa188db3e1dcf956b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2241317f1c595e04a9026799f71b29a5e33d4774c730e8aa188db3e1dcf956b8", kill_on_drop: false }`
[INFO] [stdout] 2241317f1c595e04a9026799f71b29a5e33d4774c730e8aa188db3e1dcf956b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfbc55d316ba490f052ba52c4773542ffa0662e26ccbaa671f41a6ad34495ad8
[INFO] running `Command { std: "docker" "start" "-a" "cfbc55d316ba490f052ba52c4773542ffa0662e26ccbaa671f41a6ad34495ad8", kill_on_drop: false }`
[INFO] [stderr]    Compiling wrappr v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "cfbc55d316ba490f052ba52c4773542ffa0662e26ccbaa671f41a6ad34495ad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfbc55d316ba490f052ba52c4773542ffa0662e26ccbaa671f41a6ad34495ad8", kill_on_drop: false }`
[INFO] [stdout] cfbc55d316ba490f052ba52c4773542ffa0662e26ccbaa671f41a6ad34495ad8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 313ac711067a6460be58a5a8548fbdcc6259e26772c2f6bccd04b9c118690c72
[INFO] running `Command { std: "docker" "start" "-a" "313ac711067a6460be58a5a8548fbdcc6259e26772c2f6bccd04b9c118690c72", kill_on_drop: false }`
[INFO] [stderr]    Compiling wrappr v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "313ac711067a6460be58a5a8548fbdcc6259e26772c2f6bccd04b9c118690c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "313ac711067a6460be58a5a8548fbdcc6259e26772c2f6bccd04b9c118690c72", kill_on_drop: false }`
[INFO] [stdout] 313ac711067a6460be58a5a8548fbdcc6259e26772c2f6bccd04b9c118690c72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6518a9cc4db9ec82f1af69e279dd93d6c2ecee59f30dd64f67d054f955c76c50
[INFO] running `Command { std: "docker" "start" "-a" "6518a9cc4db9ec82f1af69e279dd93d6c2ecee59f30dd64f67d054f955c76c50", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/wrappr-ca7313850510d0c6)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wrappr
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] test src/lib.rs - (line 60) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/lib.rs - (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 60) stdout ----
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:67:3
[INFO] [stdout]    |
[INFO] [stdout] 67 | y.embed(&mut x);
[INFO] [stdout]    |   ^^^^^ cannot infer type for type parameter `T` declared on the trait `Embedable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `Vec<u8>: BorrowMut<_>` found in the following crates: `alloc`, `core`:
[INFO] [stdout]            - impl<T, A> BorrowMut<[T]> for Vec<T, A>
[INFO] [stdout]              where A: Allocator;
[INFO] [stdout]            - impl<T> BorrowMut<T> for T
[INFO] [stdout]              where T: ?Sized;
[INFO] [stdout] note: required by a bound in `embed`
[INFO] [stdout]   --> src/embedable.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn embed(self, composer: &mut impl BorrowMut<T>) -> &mut T;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^ required by this bound in `Embedable::embed`
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:67:3
[INFO] [stdout]    |
[INFO] [stdout] 67 | y.embed(&mut x);
[INFO] [stdout]    |   ^^^^^ cannot infer type for type parameter `T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `_: Composer<Vec<u8>>` found in the `wrappr` crate:
[INFO] [stdout]            - impl<T> Composer<T> for Vec<T>;
[INFO] [stdout]            - impl<T> Composer<Vec<T>> for Vec<T>;
[INFO] [stdout]    = note: required for `Vec<u8>` to implement `Embedable<_>`
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:70:3
[INFO] [stdout]    |
[INFO] [stdout] 70 | z.embed(&mut x);
[INFO] [stdout]    |   ^^^^^ cannot infer type for type parameter `T` declared on the trait `Embedable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `Vec<u8>: BorrowMut<_>` found in the following crates: `alloc`, `core`:
[INFO] [stdout]            - impl<T, A> BorrowMut<[T]> for Vec<T, A>
[INFO] [stdout]              where A: Allocator;
[INFO] [stdout]            - impl<T> BorrowMut<T> for T
[INFO] [stdout]              where T: ?Sized;
[INFO] [stdout] note: required by a bound in `embed`
[INFO] [stdout]   --> src/embedable.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn embed(self, composer: &mut impl BorrowMut<T>) -> &mut T;
[INFO] [stdout]    |                                        ^^^^^^^^^^^^ required by this bound in `Embedable::embed`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 60)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.53s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "6518a9cc4db9ec82f1af69e279dd93d6c2ecee59f30dd64f67d054f955c76c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6518a9cc4db9ec82f1af69e279dd93d6c2ecee59f30dd64f67d054f955c76c50", kill_on_drop: false }`
[INFO] [stdout] 6518a9cc4db9ec82f1af69e279dd93d6c2ecee59f30dd64f67d054f955c76c50
