[INFO] fetching crate vtables_derive 0.1.0...
[INFO] testing vtables_derive-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate vtables_derive 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate vtables_derive 0.1.0
[INFO] finished tweaking crates.io crate vtables_derive 0.1.0
[INFO] tweaked toml for crates.io crate vtables_derive 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vtables_derive 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vtables v0.1.0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0690cff29d65b927d047f2f75afa2cecac36770bc5ec85bb3fb950f7b0583b80
[INFO] running `Command { std: "docker" "start" "-a" "0690cff29d65b927d047f2f75afa2cecac36770bc5ec85bb3fb950f7b0583b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0690cff29d65b927d047f2f75afa2cecac36770bc5ec85bb3fb950f7b0583b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0690cff29d65b927d047f2f75afa2cecac36770bc5ec85bb3fb950f7b0583b80", kill_on_drop: false }`
[INFO] [stdout] 0690cff29d65b927d047f2f75afa2cecac36770bc5ec85bb3fb950f7b0583b80
[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=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] c53f4be174b65267498c18cf3ffc9822ed537c53f70d3a868b150c45138e4bc0
[INFO] running `Command { std: "docker" "start" "-a" "c53f4be174b65267498c18cf3ffc9822ed537c53f70d3a868b150c45138e4bc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling vtables_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "c53f4be174b65267498c18cf3ffc9822ed537c53f70d3a868b150c45138e4bc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c53f4be174b65267498c18cf3ffc9822ed537c53f70d3a868b150c45138e4bc0", kill_on_drop: false }`
[INFO] [stdout] c53f4be174b65267498c18cf3ffc9822ed537c53f70d3a868b150c45138e4bc0
[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=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] 4f0f97af1afe08f657c3d0346c3966a2ee265efc44160f7d161dec13aa7a06e3
[INFO] running `Command { std: "docker" "start" "-a" "4f0f97af1afe08f657c3d0346c3966a2ee265efc44160f7d161dec13aa7a06e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling vtables v0.1.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling vtables_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/tests.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(abi_thiscall)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `abi_thiscall` has been stable since `1.73.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0570]: "thiscall" is not a supported ABI for the current target
[INFO] [stdout]   --> tests/tests.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[dyn_glue]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `dyn_glue` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `abi_thiscall` has been stable since 1.73.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> tests/tests.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(abi_thiscall)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0570.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vtables_derive` (test "tests") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "4f0f97af1afe08f657c3d0346c3966a2ee265efc44160f7d161dec13aa7a06e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0f97af1afe08f657c3d0346c3966a2ee265efc44160f7d161dec13aa7a06e3", kill_on_drop: false }`
[INFO] [stdout] 4f0f97af1afe08f657c3d0346c3966a2ee265efc44160f7d161dec13aa7a06e3