[INFO] fetching crate saleae 0.1.0...
[INFO] testing saleae-0.1.0 against 1.95.0 for beta-1.96-2
[INFO] extracting crate saleae 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate saleae 0.1.0
[INFO] finished tweaking crates.io crate saleae 0.1.0
[INFO] tweaked toml for crates.io crate saleae 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate saleae 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate saleae 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded faux_macros v0.0.4
[INFO] [stderr]   Downloaded darling_macro v0.10.2
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.18
[INFO] [stderr]   Downloaded enum_derive v0.1.7
[INFO] [stderr]   Downloaded proc-macro2 v1.0.19
[INFO] [stderr]   Downloaded darling_core v0.10.2
[INFO] [stderr]   Downloaded custom_derive v0.1.7
[INFO] [stderr]   Downloaded strsim v0.9.3
[INFO] [stderr]   Downloaded faux v0.0.4
[INFO] [stderr]   Downloaded syn v1.0.38
[INFO] [stderr]   Downloaded darling v0.10.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cad1a57e8bb30e3269af273dbb8053d76261b8509f7e34fc12d2795d8133bdc
[INFO] running `Command { std: "docker" "start" "-a" "2cad1a57e8bb30e3269af273dbb8053d76261b8509f7e34fc12d2795d8133bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cad1a57e8bb30e3269af273dbb8053d76261b8509f7e34fc12d2795d8133bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cad1a57e8bb30e3269af273dbb8053d76261b8509f7e34fc12d2795d8133bdc", kill_on_drop: false }`
[INFO] [stdout] 2cad1a57e8bb30e3269af273dbb8053d76261b8509f7e34fc12d2795d8133bdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f820b09b112bb3cd15bc2504acd85f3ec726c21d9a23de7f55df97d374569bd
[INFO] running `Command { std: "docker" "start" "-a" "1f820b09b112bb3cd15bc2504acd85f3ec726c21d9a23de7f55df97d374569bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling enum_derive v0.1.7
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling faux_macros v0.0.4
[INFO] [stderr]    Compiling faux v0.0.4
[INFO] [stdout] error[E0606]: casting `*mut dyn FnMut(()) + Send` as `*mut dyn FnMut(I) -> O` is invalid
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/faux-0.0.4/src/mock.rs:64:34
[INFO] [stdout]    |
[INFO] [stdout] 64 |                   let mock = &mut *(mock as *mut (dyn std::ops::FnMut(()) + std::marker::Send)
[INFO] [stdout]    |  __________________________________^
[INFO] [stdout] 65 | |                     as *mut dyn std::ops::FnMut(I) -> O);
[INFO] [stdout]    | |________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the trait objects may have different vtables
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0606`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `faux` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "1f820b09b112bb3cd15bc2504acd85f3ec726c21d9a23de7f55df97d374569bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f820b09b112bb3cd15bc2504acd85f3ec726c21d9a23de7f55df97d374569bd", kill_on_drop: false }`
[INFO] [stdout] 1f820b09b112bb3cd15bc2504acd85f3ec726c21d9a23de7f55df97d374569bd
