[INFO] fetching crate ayaka-plugin-wasmi 0.3.0...
[INFO] checking ayaka-plugin-wasmi-0.3.0 against 1.95.0 for pr-155915
[INFO] extracting crate ayaka-plugin-wasmi 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate ayaka-plugin-wasmi 0.3.0
[INFO] finished tweaking crates.io crate ayaka-plugin-wasmi 0.3.0
[INFO] tweaked toml for crates.io crate ayaka-plugin-wasmi 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ayaka-plugin-wasmi 0.3.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] [stderr]       Adding wasmi v0.31.2 (available: v1.0.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indexmap-nostd v0.4.0
[INFO] [stderr]   Downloaded ayaka-plugin v0.3.0
[INFO] [stderr]   Downloaded wasmi_arena v0.4.1
[INFO] [stderr]   Downloaded wasmi_core v0.13.0
[INFO] [stderr]   Downloaded wasmparser-nostd v0.100.2
[INFO] [stderr]   Downloaded wasmi v0.31.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33aa789e8275669f9ef3aaf5ce94ee23b332acc4d0224fe399ed0b2e0885c2df
[INFO] running `Command { std: "docker" "start" "-a" "33aa789e8275669f9ef3aaf5ce94ee23b332acc4d0224fe399ed0b2e0885c2df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33aa789e8275669f9ef3aaf5ce94ee23b332acc4d0224fe399ed0b2e0885c2df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33aa789e8275669f9ef3aaf5ce94ee23b332acc4d0224fe399ed0b2e0885c2df", kill_on_drop: false }`
[INFO] [stdout] 33aa789e8275669f9ef3aaf5ce94ee23b332acc4d0224fe399ed0b2e0885c2df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c4c87f93942e2f6d804d6d72a2013fe5e9fcf52905d2f7f64e1b184de9cd4ce
[INFO] running `Command { std: "docker" "start" "-a" "5c4c87f93942e2f6d804d6d72a2013fe5e9fcf52905d2f7f64e1b184de9cd4ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking indexmap-nostd v0.4.0
[INFO] [stderr]     Checking downcast-rs v1.2.1
[INFO] [stderr]     Checking wasmi_arena v0.4.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking wasmi_core v0.13.0
[INFO] [stderr]     Checking wasmparser-nostd v0.100.2
[INFO] [stderr]     Checking rmp-serde v1.3.1
[INFO] [stderr]     Checking ayaka-plugin v0.3.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ayaka-plugin-0.3.0/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(tuple_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ayaka-plugin` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5c4c87f93942e2f6d804d6d72a2013fe5e9fcf52905d2f7f64e1b184de9cd4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c4c87f93942e2f6d804d6d72a2013fe5e9fcf52905d2f7f64e1b184de9cd4ce", kill_on_drop: false }`
[INFO] [stdout] 5c4c87f93942e2f6d804d6d72a2013fe5e9fcf52905d2f7f64e1b184de9cd4ce
