[INFO] fetching crate mser_macro 1.0.10...
[INFO] checking mser_macro-1.0.10 against master#a3f76a26e045a760bb1163b7eab36872985242d5 for pr-130930
[INFO] extracting crate mser_macro 1.0.10 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate mser_macro 1.0.10 on toolchain a3f76a26e045a760bb1163b7eab36872985242d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mser_macro 1.0.10
[INFO] finished tweaking crates.io crate mser_macro 1.0.10
[INFO] tweaked toml for crates.io crate mser_macro 1.0.10 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mser v1.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c6e8346442d423da9d88f57721c25efd8d3bb8e30a1ebbefcd6e2b998f5ca96
[INFO] running `Command { std: "docker" "start" "-a" "7c6e8346442d423da9d88f57721c25efd8d3bb8e30a1ebbefcd6e2b998f5ca96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c6e8346442d423da9d88f57721c25efd8d3bb8e30a1ebbefcd6e2b998f5ca96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c6e8346442d423da9d88f57721c25efd8d3bb8e30a1ebbefcd6e2b998f5ca96", kill_on_drop: false }`
[INFO] [stdout] 7c6e8346442d423da9d88f57721c25efd8d3bb8e30a1ebbefcd6e2b998f5ca96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3b90b0249f60bfd98457e7187733a25ce6074936574a3827df47f918abb2eb2
[INFO] running `Command { std: "docker" "start" "-a" "e3b90b0249f60bfd98457e7187733a25ce6074936574a3827df47f918abb2eb2", kill_on_drop: false }`
[INFO] [stderr]     Checking uuid v1.10.0
[INFO] [stderr]     Checking simdutf8 v0.1.5
[INFO] [stderr]     Checking syn v2.0.79
[INFO] [stderr]     Checking mser v1.2.3
[INFO] [stderr]     Checking mser_macro v1.0.10 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: tuple struct constructor `UnsafeWriter` is private
[INFO] [stdout]   --> src/lib.rs:28:44
[INFO] [stdout]    |
[INFO] [stdout] 28 |     mser::Write::write(&output, &mut mser::UnsafeWriter(data.as_mut_ptr()));
[INFO] [stdout]    |                                            ^^^^^^^^^^^^ private tuple struct constructor
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mser-1.2.3/src/writer.rs:1:25
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub struct UnsafeWriter(pub(crate) *mut u8);
[INFO] [stdout]    |                         ------------------ a constructor is private if any of the fields is private
[INFO] [stdout]    |
[INFO] [stdout] note: the tuple struct constructor `UnsafeWriter` is defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mser-1.2.3/src/lib.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub use self::writer::UnsafeWriter;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: tuple struct constructor `UnsafeWriter` is private
[INFO] [stdout]   --> src/lib.rs:28:44
[INFO] [stdout]    |
[INFO] [stdout] 28 |     mser::Write::write(&output, &mut mser::UnsafeWriter(data.as_mut_ptr()));
[INFO] [stdout]    |                                            ^^^^^^^^^^^^ private tuple struct constructor
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mser-1.2.3/src/writer.rs:1:25
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub struct UnsafeWriter(pub(crate) *mut u8);
[INFO] [stdout]    |                         ------------------ a constructor is private if any of the fields is private
[INFO] [stdout]    |
[INFO] [stdout] note: the tuple struct constructor `UnsafeWriter` is defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mser-1.2.3/src/lib.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub use self::writer::UnsafeWriter;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0782]: trait objects must include the `dyn` keyword
[INFO] [stdout]   --> src/lib.rs:26:15
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let len = mser::Write::len(&output);
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: add `dyn` keyword before this trait
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let len = <dyn mser::Write>::len(&output);
[INFO] [stdout]    |               ++++            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0782]: trait objects must include the `dyn` keyword
[INFO] [stdout]   --> src/lib.rs:26:15
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let len = mser::Write::len(&output);
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: add `dyn` keyword before this trait
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let len = <dyn mser::Write>::len(&output);
[INFO] [stdout]    |               ++++            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `len` exists for trait object `Write`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/lib.rs:26:28
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let len = mser::Write::len(&output);
[INFO] [stdout]    |                            ^^^ function or associated item cannot be called on `Write` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mser-1.2.3/src/lib.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub trait Write {
[INFO] [stdout]    | --------------- doesn't satisfy `dyn mser::Write: ExactSizeIterator`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `dyn mser::Write: ExactSizeIterator`
[INFO] [stdout]            which is required by `&mut dyn mser::Write: ExactSizeIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `len` exists for trait object `Write`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/lib.rs:26:28
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let len = mser::Write::len(&output);
[INFO] [stdout]    |                            ^^^ function or associated item cannot be called on `Write` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mser-1.2.3/src/lib.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub trait Write {
[INFO] [stdout]    | --------------- doesn't satisfy `dyn mser::Write: ExactSizeIterator`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `dyn mser::Write: ExactSizeIterator`
[INFO] [stdout]            which is required by `&mut dyn mser::Write: ExactSizeIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0603, E0782.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mser_macro` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mser_macro` (lib test) due to 4 previous errors
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0603, E0782.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e3b90b0249f60bfd98457e7187733a25ce6074936574a3827df47f918abb2eb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3b90b0249f60bfd98457e7187733a25ce6074936574a3827df47f918abb2eb2", kill_on_drop: false }`
[INFO] [stdout] e3b90b0249f60bfd98457e7187733a25ce6074936574a3827df47f918abb2eb2