[INFO] fetching crate wasm-mt-pool 0.1.2...
[INFO] testing wasm-mt-pool-0.1.2 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate wasm-mt-pool 0.1.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate wasm-mt-pool 0.1.2
[INFO] finished tweaking crates.io crate wasm-mt-pool 0.1.2
[INFO] tweaked toml for crates.io crate wasm-mt-pool 0.1.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasm-mt-pool 0.1.2 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 87 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-mt v0.1.3
[INFO] [stderr]   Downloaded build_id v0.2.1
[INFO] [stderr]   Downloaded hash32 v0.1.1
[INFO] [stderr]   Downloaded procinfo v0.4.2
[INFO] [stderr]   Downloaded metatype v0.2.2
[INFO] [stderr]   Downloaded as-slice v0.1.5
[INFO] [stderr]   Downloaded serde_closure v0.3.3
[INFO] [stderr]   Downloaded serde_closure_derive v0.3.3
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.68
[INFO] [stderr]   Downloaded relative v0.2.2
[INFO] [stderr]   Downloaded erased-serde v0.3.31
[INFO] [stderr]   Downloaded wasm-bindgen-test-shared v0.2.118
[INFO] [stderr]   Downloaded minicov v0.3.8
[INFO] [stderr]   Downloaded heapless v0.5.6
[INFO] [stderr]   Downloaded nix v0.15.0
[INFO] [stderr]   Downloaded palaver v0.2.8
[INFO] [stderr]   Downloaded nom v2.2.1
[INFO] [stderr]   Downloaded serde_traitobject v0.2.9
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.68
[INFO] [stderr]   Downloaded generic-array v0.13.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e0a8002ddb817f07613ca990011c3c57028e246a62c23580b7d82fe54b439b9
[INFO] running `Command { std: "docker" "start" "-a" "9e0a8002ddb817f07613ca990011c3c57028e246a62c23580b7d82fe54b439b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e0a8002ddb817f07613ca990011c3c57028e246a62c23580b7d82fe54b439b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0a8002ddb817f07613ca990011c3c57028e246a62c23580b7d82fe54b439b9", kill_on_drop: false }`
[INFO] [stdout] 9e0a8002ddb817f07613ca990011c3c57028e246a62c23580b7d82fe54b439b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed7ca4c7b1bc90a4e615d0a4cce5e2607c377cb9b4961b1225ee67158a34b9a2
[INFO] running `Command { std: "docker" "start" "-a" "ed7ca4c7b1bc90a4e615d0a4cce5e2607c377cb9b4961b1225ee67158a34b9a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.118
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling typenum v1.20.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling hash32 v0.1.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.118
[INFO] [stderr]    Compiling build_id v0.2.1
[INFO] [stderr]    Compiling nom v2.2.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling twox-hash v1.6.3
[INFO] [stderr]    Compiling relative v0.2.2
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]    Compiling serde_closure v0.3.3
[INFO] [stderr]    Compiling metatype v0.2.2
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling as-slice v0.1.5
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling serde_closure_derive v0.3.3
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.118
[INFO] [stderr]    Compiling palaver v0.2.8
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.118
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling erased-serde v0.3.31
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling serde_traitobject v0.2.9
[INFO] [stdout] error[E0804]: cannot add auto trait `Send` to dyn bound via pointer cast
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_traitobject-0.2.9/src/convenience.rs:32:25
[INFO] [stdout]    |
[INFO] [stdout] 32 |             boxed::Box::from_raw(boxed::Box::into_raw(<Box<dyn Any>>::into_any(self)) as *mut _)
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsupported cast
[INFO] [stdout]    |
[INFO] [stdout]    = note: this could allow UB elsewhere
[INFO] [stdout]    = help: use `transmute` if you're sure this is sound
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0804]: cannot add auto trait `Sync` to dyn bound via pointer cast
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_traitobject-0.2.9/src/convenience.rs:40:25
[INFO] [stdout]    |
[INFO] [stdout] 40 |             boxed::Box::from_raw(boxed::Box::into_raw(<Box<dyn Any>>::into_any(self)) as *mut _)
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsupported cast
[INFO] [stdout]    |
[INFO] [stdout]    = note: this could allow UB elsewhere
[INFO] [stdout]    = help: use `transmute` if you're sure this is sound
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0804]: cannot add auto traits `Send` and `Sync` to dyn bound via pointer cast
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_traitobject-0.2.9/src/convenience.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 |             boxed::Box::from_raw(boxed::Box::into_raw(<Box<dyn Any>>::into_any(self)) as *mut _)
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsupported cast
[INFO] [stdout]    |
[INFO] [stdout]    = note: this could allow UB elsewhere
[INFO] [stdout]    = help: use `transmute` if you're sure this is sound
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0804`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_traitobject` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ed7ca4c7b1bc90a4e615d0a4cce5e2607c377cb9b4961b1225ee67158a34b9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed7ca4c7b1bc90a4e615d0a4cce5e2607c377cb9b4961b1225ee67158a34b9a2", kill_on_drop: false }`
[INFO] [stdout] ed7ca4c7b1bc90a4e615d0a4cce5e2607c377cb9b4961b1225ee67158a34b9a2