[INFO] fetching crate preserves-schema-macros 1.0.0-rc.2...
[INFO] checking preserves-schema-macros-1.0.0-rc.2 against try#94382f34384023f3d2062a34ccf0bb6b4d44a75a for mutual-coercion
[INFO] extracting crate preserves-schema-macros 1.0.0-rc.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate preserves-schema-macros 1.0.0-rc.2
[INFO] finished tweaking crates.io crate preserves-schema-macros 1.0.0-rc.2
[INFO] tweaked toml for crates.io crate preserves-schema-macros 1.0.0-rc.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate preserves-schema-macros 1.0.0-rc.2 on toolchain 94382f34384023f3d2062a34ccf0bb6b4d44a75a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94382f34384023f3d2062a34ccf0bb6b4d44a75a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate preserves-schema-macros 1.0.0-rc.2 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" "+94382f34384023f3d2062a34ccf0bb6b4d44a75a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+94382f34384023f3d2062a34ccf0bb6b4d44a75a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b65cc0dc6d46fc467f749101ee7f3223bb27d60eccdd0e52e22a05c9e1853d15
[INFO] running `Command { std: "docker" "start" "-a" "b65cc0dc6d46fc467f749101ee7f3223bb27d60eccdd0e52e22a05c9e1853d15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b65cc0dc6d46fc467f749101ee7f3223bb27d60eccdd0e52e22a05c9e1853d15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65cc0dc6d46fc467f749101ee7f3223bb27d60eccdd0e52e22a05c9e1853d15", kill_on_drop: false }`
[INFO] [stdout] b65cc0dc6d46fc467f749101ee7f3223bb27d60eccdd0e52e22a05c9e1853d15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+94382f34384023f3d2062a34ccf0bb6b4d44a75a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ba57714598ba985d5d0742e069f860d5946110ab37afdd51b55a1f5eaec58a4
[INFO] running `Command { std: "docker" "start" "-a" "9ba57714598ba985d5d0742e069f860d5946110ab37afdd51b55a1f5eaec58a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking bytemuck v1.22.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stderr]     Checking convert_case v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.100
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking preserves v5.0.0-rc.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking preserves-schema v6.0.0-rc.4
[INFO] [stdout] error[E0277]: the size for values of type `dyn Emittable` cannot be known at compilation time
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/preserves-schema-6.0.0-rc.4/src/compiler/types.rs:227:77
[INFO] [stdout]     |
[INFO] [stdout] 227 |     fn render(&self, ctxt: &ModuleContext, direct: bool, defining: &Ref) -> impl Emittable {
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Sized` is not implemented for `dyn Emittable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/preserves-schema-6.0.0-rc.4/src/compiler/types.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 228 | /         match self {
[INFO] [stdout] 229 | |             TField::Unit => seq!["()"],
[INFO] [stdout] 230 | |             TField::Any => seq![ctxt.any_type()],
[INFO] [stdout] 231 | |             TField::Embedded => seq![ctxt.dom_type()],
[INFO] [stdout] ...   |
[INFO] [stdout] 248 | |             TField::Base(n) => seq![n.to_owned()],
[INFO] [stdout] 249 | |         }
[INFO] [stdout]     | |_________^ expected `dyn Emittable`, found `Sequence`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected trait object `dyn Emittable`
[INFO] [stdout]                      found struct `block::Sequence`
[INFO] [stdout]     = help: `block::Sequence` implements `Emittable` so you could box the found value and coerce it to the trait object `Box<dyn Emittable>`, you will have to change the expected type as well
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `preserves-schema` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9ba57714598ba985d5d0742e069f860d5946110ab37afdd51b55a1f5eaec58a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ba57714598ba985d5d0742e069f860d5946110ab37afdd51b55a1f5eaec58a4", kill_on_drop: false }`
[INFO] [stdout] 9ba57714598ba985d5d0742e069f860d5946110ab37afdd51b55a1f5eaec58a4
