[INFO] fetching crate async-dropper 0.3.1...
[INFO] testing async-dropper-0.3.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate async-dropper 0.3.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate async-dropper 0.3.1
[INFO] removed 5 missing examples
[INFO] finished tweaking crates.io crate async-dropper 0.3.1
[INFO] tweaked toml for crates.io crate async-dropper 0.3.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate async-dropper 0.3.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate async-dropper 0.3.1 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-dropper-derive v0.3.1
[INFO] [stderr]   Downloaded async-dropper-simple v0.2.5
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e6ba277dd5d07e15af23bdb90d753dd2f97b55cc0b9152901f716addef433e1
[INFO] running `Command { std: "docker" "start" "-a" "2e6ba277dd5d07e15af23bdb90d753dd2f97b55cc0b9152901f716addef433e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e6ba277dd5d07e15af23bdb90d753dd2f97b55cc0b9152901f716addef433e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e6ba277dd5d07e15af23bdb90d753dd2f97b55cc0b9152901f716addef433e1", kill_on_drop: false }`
[INFO] [stdout] 2e6ba277dd5d07e15af23bdb90d753dd2f97b55cc0b9152901f716addef433e1
[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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 42e2cc2728c89b34bb769cfd73a51fc8bacdc8a97a348415a82ae79699bb0918
[INFO] running `Command { std: "docker" "start" "-a" "42e2cc2728c89b34bb769cfd73a51fc8bacdc8a97a348415a82ae79699bb0918", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling async-trait v0.1.74
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling async-dropper-simple v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling async-dropper-derive v0.3.1
[INFO] [stdout] error: either 'async-std' or 'tokio' features must be enabled for the async-dropper crate
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/async-dropper-derive-0.3.1/src/lib.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 | /     compile_error!(
[INFO] [stdout] 114 | |         "either 'async-std' or 'tokio' features must be enabled for the async-dropper crate"
[INFO] [stdout] 115 | |     );
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/async-dropper-derive-0.3.1/src/lib.rs:9:13
[INFO] [stdout]     |
[INFO] [stdout] 9   |             gen_impl(&derive_input),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^ expected `proc_macro2::TokenStream`, found `proc_macro::TokenStream`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `proc_macro::TokenStream` and `proc_macro2::TokenStream` have similar names, but are actually distinct types
[INFO] [stdout] note: `proc_macro::TokenStream` is defined in crate `proc_macro`
[INFO] [stdout]    --> /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/proc_macro/src/lib.rs:103:1
[INFO] [stdout] note: `proc_macro2::TokenStream` is defined in crate `proc_macro2`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.69/src/lib.rs:173:1
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub struct TokenStream {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: call `Into::into` on this expression to convert `proc_macro::TokenStream` into `proc_macro2::TokenStream`
[INFO] [stdout]     |
[INFO] [stdout] 9   |             gen_impl(&derive_input).into(),
[INFO] [stdout]     |                                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/async-dropper-derive-0.3.1/src/lib.rs:112:33
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn gen_impl(_: &DeriveInput) -> proc_macro::TokenStream {
[INFO] [stdout]     |    --------                     ^^^^^^^^^^^^^^^^^^^^^^^ expected `TokenStream`, found `()`
[INFO] [stdout]     |    |
[INFO] [stdout]     |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-dropper-derive` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "42e2cc2728c89b34bb769cfd73a51fc8bacdc8a97a348415a82ae79699bb0918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42e2cc2728c89b34bb769cfd73a51fc8bacdc8a97a348415a82ae79699bb0918", kill_on_drop: false }`
[INFO] [stdout] 42e2cc2728c89b34bb769cfd73a51fc8bacdc8a97a348415a82ae79699bb0918