[INFO] fetching crate mockiato 0.9.6...
[INFO] checking mockiato-0.9.6 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate mockiato 0.9.6 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate mockiato 0.9.6
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mockiato 0.9.6
[INFO] tweaked toml for crates.io crate mockiato 0.9.6 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mockiato 0.9.6 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mockiato 0.9.6 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9999fbc4df2dbd66e2307ff117eb6ef3fb489f4698fdf5d74ce0086226be2260
[INFO] running `Command { std: "docker" "start" "-a" "9999fbc4df2dbd66e2307ff117eb6ef3fb489f4698fdf5d74ce0086226be2260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9999fbc4df2dbd66e2307ff117eb6ef3fb489f4698fdf5d74ce0086226be2260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9999fbc4df2dbd66e2307ff117eb6ef3fb489f4698fdf5d74ce0086226be2260", kill_on_drop: false }`
[INFO] [stdout] 9999fbc4df2dbd66e2307ff117eb6ef3fb489f4698fdf5d74ce0086226be2260
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8739565bb61d34a387c924a01b896fe8516a245cb67c07416d3291af4d8248d3
[INFO] running `Command { std: "docker" "start" "-a" "8739565bb61d34a387c924a01b896fe8516a245cb67c07416d3291af4d8248d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling proc-macro2 v1.0.84
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking nearly_eq v0.2.4
[INFO] [stderr]     Checking nameof v1.2.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling mockiato-codegen v0.9.6
[INFO] [stderr]    Compiling mockiato v0.9.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stdout] warning: trait `Greeter` is never used
[INFO] [stdout]  --> tests/static_attr.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait Greeter: 'static {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Bar` is never used
[INFO] [stdout]  --> tests/default.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub(super) trait Bar {}
[INFO] [stdout]   |                      ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Foo` is never used
[INFO] [stdout]  --> tests/unsafe_traits_work.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | unsafe trait Foo {
[INFO] [stdout]   |              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Greeter` is never used
[INFO] [stdout]  --> tests/trait_with_debug_bound_can_be_formatted.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait Greeter<T, U>: Debug {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IsFriendly` is never used
[INFO] [stdout]  --> tests/default_impl.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait IsFriendly {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `step` is never used
[INFO] [stdout]   --> examples/downcasting.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait ObjectBehavior: ObjectBehaviorAsAny {
[INFO] [stdout]    |       -------------- method in this trait
[INFO] [stdout] 12 |     fn step(&mut self);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Foo` is never used
[INFO] [stdout]  --> tests/method_decls.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait Foo {
[INFO] [stdout]   |       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Greeter` is never used
[INFO] [stdout]   --> tests/display_impl_for_partial_eq_matcher.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | trait Greeter {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `downcasting`
[INFO] [stdout]   --> examples/downcasting.rs:34:2
[INFO] [stdout]    |
[INFO] [stdout] 34 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `examples/downcasting.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stdout] warning: methods `associated_type`, `generic_param_wrapped_in_container`, and `generic_param_as_return_value` are never used
[INFO] [stdout]   --> tests/generic_types.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | trait Greeter<T, V>
[INFO] [stdout]    |       ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn associated_type(&self, name: V::Output) -> String;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 18 |
[INFO] [stdout] 19 |     fn generic_param_wrapped_in_container(&self, names: Vec<T>) -> String;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 20 |
[INFO] [stdout] 21 |     fn generic_param_as_return_value(&self, name: String) -> T;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mockiato` (example "downcasting") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: trait `Debug` is never used
[INFO] [stdout]  --> tests/test.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait Debug {}
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Greeter` is never used
[INFO] [stdout]  --> tests/test.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Greeter: fmt::Debug {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Foo` is never used
[INFO] [stdout]  --> tests/auto_derive_trait_bounds.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait Foo: fmt::Debug {}
[INFO] [stdout]   |       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Greeter` is never used
[INFO] [stdout]   --> tests/visibility.rs:17:22
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub(super) trait Greeter {
[INFO] [stdout]    |                      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PubCrateGreeter` is never used
[INFO] [stdout]   --> tests/visibility.rs:25:26
[INFO] [stdout]    |
[INFO] [stdout] 25 |         pub(crate) trait PubCrateGreeter {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8739565bb61d34a387c924a01b896fe8516a245cb67c07416d3291af4d8248d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8739565bb61d34a387c924a01b896fe8516a245cb67c07416d3291af4d8248d3", kill_on_drop: false }`
[INFO] [stdout] 8739565bb61d34a387c924a01b896fe8516a245cb67c07416d3291af4d8248d3