[INFO] fetching crate hot-lib-reloader-macro 0.7.0...
[INFO] testing hot-lib-reloader-macro-0.7.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate hot-lib-reloader-macro 0.7.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate hot-lib-reloader-macro 0.7.0
[INFO] finished tweaking crates.io crate hot-lib-reloader-macro 0.7.0
[INFO] tweaked toml for crates.io crate hot-lib-reloader-macro 0.7.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hot-lib-reloader-macro 0.7.0 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 hot-lib-reloader-macro 0.7.0 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.76
[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] 37c05042949a7c40416fb428e2786b60f41e925cebbca824ba824e8615b491b6
[INFO] running `Command { std: "docker" "start" "-a" "37c05042949a7c40416fb428e2786b60f41e925cebbca824ba824e8615b491b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37c05042949a7c40416fb428e2786b60f41e925cebbca824ba824e8615b491b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37c05042949a7c40416fb428e2786b60f41e925cebbca824ba824e8615b491b6", kill_on_drop: false }`
[INFO] [stdout] 37c05042949a7c40416fb428e2786b60f41e925cebbca824ba824e8615b491b6
[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] 9c044f978326ca70bfaee591d6661be2db9c9c7ae206bfb2b3f012fcd26a2a61
[INFO] running `Command { std: "docker" "start" "-a" "9c044f978326ca70bfaee591d6661be2db9c9c7ae206bfb2b3f012fcd26a2a61", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling hot-lib-reloader-macro v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.43s
[INFO] running `Command { std: "docker" "inspect" "9c044f978326ca70bfaee591d6661be2db9c9c7ae206bfb2b3f012fcd26a2a61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c044f978326ca70bfaee591d6661be2db9c9c7ae206bfb2b3f012fcd26a2a61", kill_on_drop: false }`
[INFO] [stdout] 9c044f978326ca70bfaee591d6661be2db9c9c7ae206bfb2b3f012fcd26a2a61
[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" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 7056764bb55bb4918d8c0374afe2ca9589fadd59b2cd6740056ebde9352468c2
[INFO] running `Command { std: "docker" "start" "-a" "7056764bb55bb4918d8c0374afe2ca9589fadd59b2cd6740056ebde9352468c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling hot-lib-reloader-macro v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stdout] error[E0277]: `syn::File` doesn't implement `Debug`
[INFO] [stdout]  --> examples/syn-test.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         dbg!(ast);
[INFO] [stdout]   |         ^^^^^^^^^ `syn::File` cannot be formatted using `{:?}` because it doesn't implement `Debug`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `Debug` is not implemented for `syn::File`
[INFO] [stdout]   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hot-lib-reloader-macro` (example "syn-test") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "7056764bb55bb4918d8c0374afe2ca9589fadd59b2cd6740056ebde9352468c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7056764bb55bb4918d8c0374afe2ca9589fadd59b2cd6740056ebde9352468c2", kill_on_drop: false }`
[INFO] [stdout] 7056764bb55bb4918d8c0374afe2ca9589fadd59b2cd6740056ebde9352468c2