[INFO] fetching crate basic-oop 0.8.3...
[INFO] checking basic-oop-0.8.3 against 1.95.0 for pr-155915
[INFO] extracting crate basic-oop 0.8.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate basic-oop 0.8.3
[INFO] finished tweaking crates.io crate basic-oop 0.8.3
[INFO] tweaked toml for crates.io crate basic-oop 0.8.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate basic-oop 0.8.3 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] crate crates.io crate basic-oop 0.8.3 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" "+1.95.0" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded macro_magic_core_macros v0.6.0
[INFO] [stderr]   Downloaded basic-oop-macro v0.8.2
[INFO] [stderr]   Downloaded macro_magic v0.6.0
[INFO] [stderr]   Downloaded arraybox v0.1.4
[INFO] [stderr]   Downloaded anycase v0.1.0
[INFO] [stderr]   Downloaded macro_magic_core v0.6.0
[INFO] [stderr]   Downloaded dynamic-cast v0.2.0
[INFO] [stderr]   Downloaded derive-syn-parse v0.2.0
[INFO] [stderr]   Downloaded macro_magic_macros v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] fb0085767edce170ea8acff3e058cf45d7387b476358d0d943ec4c9f8802cfd6
[INFO] running `Command { std: "docker" "start" "-a" "fb0085767edce170ea8acff3e058cf45d7387b476358d0d943ec4c9f8802cfd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb0085767edce170ea8acff3e058cf45d7387b476358d0d943ec4c9f8802cfd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb0085767edce170ea8acff3e058cf45d7387b476358d0d943ec4c9f8802cfd6", kill_on_drop: false }`
[INFO] [stdout] fb0085767edce170ea8acff3e058cf45d7387b476358d0d943ec4c9f8802cfd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d806e788136a620cff9ffbd6f490aa72be9a458c5780d85f66b2e651e1c06b71
[INFO] running `Command { std: "docker" "start" "-a" "d806e788136a620cff9ffbd6f490aa72be9a458c5780d85f66b2e651e1c06b71", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling anycase v0.1.0
[INFO] [stderr]     Checking downcast-rs v2.0.1
[INFO] [stderr]     Checking arraybox v0.1.4
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling syn v2.0.101
[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/arraybox-0.1.4/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(ptr_metadata)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `arraybox` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d806e788136a620cff9ffbd6f490aa72be9a458c5780d85f66b2e651e1c06b71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d806e788136a620cff9ffbd6f490aa72be9a458c5780d85f66b2e651e1c06b71", kill_on_drop: false }`
[INFO] [stdout] d806e788136a620cff9ffbd6f490aa72be9a458c5780d85f66b2e651e1c06b71
