[INFO] fetching crate cppvtbl 0.2.1...
[INFO] testing cppvtbl-0.2.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate cppvtbl 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate cppvtbl 0.2.1
[INFO] finished tweaking crates.io crate cppvtbl 0.2.1
[INFO] tweaked toml for crates.io crate cppvtbl 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cppvtbl 0.2.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cppvtbl-macros v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 188e2b6f7dc378a80341460fd80f453e272cc26f9c864f26dedd9aed199c2f1d
[INFO] running `Command { std: "docker" "start" "-a" "188e2b6f7dc378a80341460fd80f453e272cc26f9c864f26dedd9aed199c2f1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "188e2b6f7dc378a80341460fd80f453e272cc26f9c864f26dedd9aed199c2f1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188e2b6f7dc378a80341460fd80f453e272cc26f9c864f26dedd9aed199c2f1d", kill_on_drop: false }`
[INFO] [stdout] 188e2b6f7dc378a80341460fd80f453e272cc26f9c864f26dedd9aed199c2f1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18b4376ee266ca1dfb79fed554b959f455dfa7b27fe31e768708e7a0d86bfd0c
[INFO] running `Command { std: "docker" "start" "-a" "18b4376ee266ca1dfb79fed554b959f455dfa7b27fe31e768708e7a0d86bfd0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cppvtbl-macros v0.2.1
[INFO] [stderr]    Compiling cppvtbl v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "18b4376ee266ca1dfb79fed554b959f455dfa7b27fe31e768708e7a0d86bfd0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18b4376ee266ca1dfb79fed554b959f455dfa7b27fe31e768708e7a0d86bfd0c", kill_on_drop: false }`
[INFO] [stdout] 18b4376ee266ca1dfb79fed554b959f455dfa7b27fe31e768708e7a0d86bfd0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a423c5f85acd462cd9be90d075e6fda21be21e1f7c4209b7e01f0d6149df3226
[INFO] running `Command { std: "docker" "start" "-a" "a423c5f85acd462cd9be90d075e6fda21be21e1f7c4209b7e01f0d6149df3226", kill_on_drop: false }`
[INFO] [stderr]    Compiling cppvtbl v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Test` is never used
[INFO] [stdout]  --> tests/generics.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait Test {
[INFO] [stdout]   |       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WrapperRef` is never constructed
[INFO] [stdout]  --> tests/generics.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct WrapperRef<'p>(&'p u32);
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TestVtableForWrapperRef` is never used
[INFO] [stdout]  --> tests/generics.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[impl_vtables(Test)]
[INFO] [stdout]   |                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `unsafe_impl_TestVtable` which comes from the expansion of the attribute macro `impl_vtables` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sub` is never constructed
[INFO] [stdout]   --> tests/basic.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Sub(u8);
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OperatorVtableForSub` is never used
[INFO] [stdout]   --> tests/basic.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[impl_vtables(Operator)]
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unsafe_impl_OperatorVtable` which comes from the expansion of the attribute macro `impl_vtables` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "a423c5f85acd462cd9be90d075e6fda21be21e1f7c4209b7e01f0d6149df3226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a423c5f85acd462cd9be90d075e6fda21be21e1f7c4209b7e01f0d6149df3226", kill_on_drop: false }`
[INFO] [stdout] a423c5f85acd462cd9be90d075e6fda21be21e1f7c4209b7e01f0d6149df3226
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 08f7f829ec89fb0ce4b63b14006fac8327ba03da6442724be548929086f48af2
[INFO] running `Command { std: "docker" "start" "-a" "08f7f829ec89fb0ce4b63b14006fac8327ba03da6442724be548929086f48af2", kill_on_drop: false }`
[INFO] [stderr] warning: trait `Test` is never used
[INFO] [stderr]  --> tests/generics.rs:4:7
[INFO] [stderr]   |
[INFO] [stderr] 4 | trait Test {
[INFO] [stderr]   |       ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `WrapperRef` is never constructed
[INFO] [stderr]  --> tests/generics.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct WrapperRef<'p>(&'p u32);
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `TestVtableForWrapperRef` is never used
[INFO] [stderr]  --> tests/generics.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[impl_vtables(Test)]
[INFO] [stderr]   |                ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this warning originates in the macro `unsafe_impl_TestVtable` which comes from the expansion of the attribute macro `impl_vtables` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `cppvtbl` (test "generics") generated 3 warnings
[INFO] [stderr] warning: struct `Sub` is never constructed
[INFO] [stderr]   --> tests/basic.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | struct Sub(u8);
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OperatorVtableForSub` is never used
[INFO] [stderr]   --> tests/basic.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[impl_vtables(Operator)]
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `unsafe_impl_OperatorVtable` which comes from the expansion of the attribute macro `impl_vtables` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `cppvtbl` (test "basic") generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cppvtbl-c7f94b614ebf9037)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-5c51012f5425f7c8)
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/generics.rs (/opt/rustwide/target/debug/deps/generics-615409242aa49892)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cppvtbl
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "08f7f829ec89fb0ce4b63b14006fac8327ba03da6442724be548929086f48af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f7f829ec89fb0ce4b63b14006fac8327ba03da6442724be548929086f48af2", kill_on_drop: false }`
[INFO] [stdout] 08f7f829ec89fb0ce4b63b14006fac8327ba03da6442724be548929086f48af2