[INFO] fetching crate cast_trait_object 0.1.4...
[INFO] testing cast_trait_object-0.1.4 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate cast_trait_object 0.1.4 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate cast_trait_object 0.1.4
[INFO] finished tweaking crates.io crate cast_trait_object 0.1.4
[INFO] tweaked toml for crates.io crate cast_trait_object 0.1.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cast_trait_object 0.1.4 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cast_trait_object_macros v0.1.4
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ca0dfbeb06f10918e30ddde723d8d20525d7b36418734509dbf4cdf16abe0df
[INFO] running `Command { std: "docker" "start" "-a" "2ca0dfbeb06f10918e30ddde723d8d20525d7b36418734509dbf4cdf16abe0df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ca0dfbeb06f10918e30ddde723d8d20525d7b36418734509dbf4cdf16abe0df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ca0dfbeb06f10918e30ddde723d8d20525d7b36418734509dbf4cdf16abe0df", kill_on_drop: false }`
[INFO] [stdout] 2ca0dfbeb06f10918e30ddde723d8d20525d7b36418734509dbf4cdf16abe0df
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f69a617df57012ecb4d67d893aacd46c803cc245acbf2821148a7d28e6198a8b
[INFO] running `Command { std: "docker" "start" "-a" "f69a617df57012ecb4d67d893aacd46c803cc245acbf2821148a7d28e6198a8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling indexmap v2.11.0
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling proc-macro-crate v3.3.0
[INFO] [stderr]    Compiling cast_trait_object_macros v0.1.4
[INFO] [stderr]    Compiling cast_trait_object v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.56s
[INFO] running `Command { std: "docker" "inspect" "f69a617df57012ecb4d67d893aacd46c803cc245acbf2821148a7d28e6198a8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f69a617df57012ecb4d67d893aacd46c803cc245acbf2821148a7d28e6198a8b", kill_on_drop: false }`
[INFO] [stdout] f69a617df57012ecb4d67d893aacd46c803cc245acbf2821148a7d28e6198a8b
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d618f3dd7b82d75a57b2ad6e3ee19515d60bd567930a9d7b788e5dbe25594fd
[INFO] running `Command { std: "docker" "start" "-a" "7d618f3dd7b82d75a57b2ad6e3ee19515d60bd567930a9d7b788e5dbe25594fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling cast_trait_object v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `TestSuper` is never constructed
[INFO] [stdout]     --> src/lib.rs:1693:12
[INFO] [stdout]      |
[INFO] [stdout] 1693 |     struct TestSuper;
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestSub` is never constructed
[INFO] [stdout]     --> src/lib.rs:1697:12
[INFO] [stdout]      |
[INFO] [stdout] 1697 |     struct TestSub;
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestSubMixed` is never constructed
[INFO] [stdout]     --> src/lib.rs:1703:12
[INFO] [stdout]      |
[INFO] [stdout] 1703 |     struct TestSubMixed;
[INFO] [stdout]      |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestGenericMixed` is never constructed
[INFO] [stdout]     --> src/lib.rs:1729:12
[INFO] [stdout]      |
[INFO] [stdout] 1729 |     struct TestGenericMixed<T>(T);
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestSuper` is never constructed
[INFO] [stdout]     --> src/lib.rs:1778:16
[INFO] [stdout]      |
[INFO] [stdout] 1778 |         struct TestSuper;
[INFO] [stdout]      |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestSub` is never constructed
[INFO] [stdout]     --> src/lib.rs:1782:16
[INFO] [stdout]      |
[INFO] [stdout] 1782 |         struct TestSub;
[INFO] [stdout]      |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "7d618f3dd7b82d75a57b2ad6e3ee19515d60bd567930a9d7b788e5dbe25594fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d618f3dd7b82d75a57b2ad6e3ee19515d60bd567930a9d7b788e5dbe25594fd", kill_on_drop: false }`
[INFO] [stdout] 7d618f3dd7b82d75a57b2ad6e3ee19515d60bd567930a9d7b788e5dbe25594fd
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 768d6c74f9244a6a0fb36eeb03e679637731fdd0da045bc0e2948d085e7d73a7
[INFO] running `Command { std: "docker" "start" "-a" "768d6c74f9244a6a0fb36eeb03e679637731fdd0da045bc0e2948d085e7d73a7", kill_on_drop: false }`
[INFO] [stderr] warning: struct `TestSuper` is never constructed
[INFO] [stderr]     --> src/lib.rs:1693:12
[INFO] [stderr]      |
[INFO] [stderr] 1693 |     struct TestSuper;
[INFO] [stderr]      |            ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TestSub` is never constructed
[INFO] [stderr]     --> src/lib.rs:1697:12
[INFO] [stderr]      |
[INFO] [stderr] 1697 |     struct TestSub;
[INFO] [stderr]      |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TestSubMixed` is never constructed
[INFO] [stderr]     --> src/lib.rs:1703:12
[INFO] [stderr]      |
[INFO] [stderr] 1703 |     struct TestSubMixed;
[INFO] [stderr]      |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TestGenericMixed` is never constructed
[INFO] [stderr]     --> src/lib.rs:1729:12
[INFO] [stderr]      |
[INFO] [stderr] 1729 |     struct TestGenericMixed<T>(T);
[INFO] [stderr]      |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TestSuper` is never constructed
[INFO] [stderr]     --> src/lib.rs:1778:16
[INFO] [stderr]      |
[INFO] [stderr] 1778 |         struct TestSuper;
[INFO] [stderr]      |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TestSub` is never constructed
[INFO] [stderr]     --> src/lib.rs:1782:16
[INFO] [stderr]      |
[INFO] [stderr] 1782 |         struct TestSub;
[INFO] [stderr]      |                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cast_trait_object` (lib test) generated 6 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cast_trait_object-dbc834a92c112806)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::generic_impl ... ok
[INFO] [stdout] test tests::cast_to_generic_trait_object ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cast_trait_object
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test src/lib.rs - DynCastExt::dyn_cast (line 734) ... ok
[INFO] [stdout] test src/lib.rs - DynCastExt::dyn_upcast (line 765) ... ok
[INFO] [stdout] test src/lib.rs - (line 194) ... ok
[INFO] [stdout] test src/lib.rs - (line 297) ... ok
[INFO] [stdout] test src/lib.rs - DynCastExt::dyn_cast_with_config (line 837) ... ok
[INFO] [stdout] test src/lib.rs - DynCastExt::dyn_cast_adv (line 796) ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] test src/lib.rs - (line 104) ... ok
[INFO] [stdout] test src/lib.rs - (line 48) ... ok
[INFO] [stdout] test src/lib.rs - (line 245) ... ok
[INFO] [stdout] test src/lib.rs - dyn_upcast (line 480) ... ok
[INFO] [stdout] test src/lib.rs - dyn_upcast (line 457) ... ok
[INFO] [stdout] test src/lib.rs - dyn_cast (line 532) ... ok
[INFO] [stdout] test src/lib.rs - dyn_cast (line 509) ... ok
[INFO] [stdout] test src/lib.rs - (line 143) ... ok
[INFO] [stdout] test src/lib.rs - (line 69) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "768d6c74f9244a6a0fb36eeb03e679637731fdd0da045bc0e2948d085e7d73a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "768d6c74f9244a6a0fb36eeb03e679637731fdd0da045bc0e2948d085e7d73a7", kill_on_drop: false }`
[INFO] [stdout] 768d6c74f9244a6a0fb36eeb03e679637731fdd0da045bc0e2948d085e7d73a7