[INFO] fetching crate wrappr 1.2.0...
[INFO] testing wrappr-1.2.0 against 1.90.0 for beta-1.91-3
[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 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f799d89de738506b88d2b4cbbfdfc3a4737e158f7e8d9cfdd7d573c0025ae291
[INFO] running `Command { std: "docker" "start" "-a" "f799d89de738506b88d2b4cbbfdfc3a4737e158f7e8d9cfdd7d573c0025ae291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f799d89de738506b88d2b4cbbfdfc3a4737e158f7e8d9cfdd7d573c0025ae291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f799d89de738506b88d2b4cbbfdfc3a4737e158f7e8d9cfdd7d573c0025ae291", kill_on_drop: false }`
[INFO] [stdout] f799d89de738506b88d2b4cbbfdfc3a4737e158f7e8d9cfdd7d573c0025ae291
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40912f207296f720f4b485dcd16061ad53a043ca184072b740b4c649c7c7012a
[INFO] running `Command { std: "docker" "start" "-a" "40912f207296f720f4b485dcd16061ad53a043ca184072b740b4c649c7c7012a", 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" "40912f207296f720f4b485dcd16061ad53a043ca184072b740b4c649c7c7012a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40912f207296f720f4b485dcd16061ad53a043ca184072b740b4c649c7c7012a", kill_on_drop: false }`
[INFO] [stdout] 40912f207296f720f4b485dcd16061ad53a043ca184072b740b4c649c7c7012a
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4f039284c85282cfa778c26b88276432ae8f42c8433688b82d7d50517738f78
[INFO] running `Command { std: "docker" "start" "-a" "b4f039284c85282cfa778c26b88276432ae8f42c8433688b82d7d50517738f78", kill_on_drop: false }`
[INFO] [stderr]    Compiling wrappr v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "b4f039284c85282cfa778c26b88276432ae8f42c8433688b82d7d50517738f78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4f039284c85282cfa778c26b88276432ae8f42c8433688b82d7d50517738f78", kill_on_drop: false }`
[INFO] [stdout] b4f039284c85282cfa778c26b88276432ae8f42c8433688b82d7d50517738f78
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf5880d80ab99dce8faf32ead01564057fe95567c923c8b391486d8bcc4c7685
[INFO] running `Command { std: "docker" "start" "-a" "cf5880d80ab99dce8faf32ead01564057fe95567c923c8b391486d8bcc4c7685", 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-373b1ac120e66a5c)
[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 60) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[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] 10 | 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]   --> /opt/rustwide/workdir/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] 10 | 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] 13 | 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]   --> /opt/rustwide/workdir/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 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cf5880d80ab99dce8faf32ead01564057fe95567c923c8b391486d8bcc4c7685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf5880d80ab99dce8faf32ead01564057fe95567c923c8b391486d8bcc4c7685", kill_on_drop: false }`
[INFO] [stdout] cf5880d80ab99dce8faf32ead01564057fe95567c923c8b391486d8bcc4c7685