[INFO] fetching crate piecrust-macros 0.1.0...
[INFO] checking piecrust-macros-0.1.0 against 1.95.0 for pr-155915
[INFO] extracting crate piecrust-macros 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate piecrust-macros 0.1.0
[INFO] finished tweaking crates.io crate piecrust-macros 0.1.0
[INFO] tweaked toml for crates.io crate piecrust-macros 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate piecrust-macros 0.1.0 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]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding piecrust-uplink v0.9.0 (available: v0.20.0)
[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 piecrust-uplink v0.9.0
[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] da4c32443d6fe0289f6537ef18519155950b046d7635b48bd6005f669bbac84a
[INFO] running `Command { std: "docker" "start" "-a" "da4c32443d6fe0289f6537ef18519155950b046d7635b48bd6005f669bbac84a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da4c32443d6fe0289f6537ef18519155950b046d7635b48bd6005f669bbac84a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da4c32443d6fe0289f6537ef18519155950b046d7635b48bd6005f669bbac84a", kill_on_drop: false }`
[INFO] [stdout] da4c32443d6fe0289f6537ef18519155950b046d7635b48bd6005f669bbac84a
[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] 6eac5055b7c1df66710a05c06e668338404cdd8cb082b618a90a2776c3aa87ad
[INFO] running `Command { std: "docker" "start" "-a" "6eac5055b7c1df66710a05c06e668338404cdd8cb082b618a90a2776c3aa87ad", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]    Compiling bytecheck v0.6.12
[INFO] [stderr]    Compiling rkyv v0.7.46
[INFO] [stderr]     Checking libc v0.2.186
[INFO] [stderr]    Compiling bytecheck_derive v0.6.12
[INFO] [stderr]    Compiling rkyv_derive v0.7.46
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]     Checking syn v2.0.117
[INFO] [stderr]     Checking ptr_meta v0.1.4
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking piecrust-uplink v0.9.0
[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/piecrust-uplink-0.9.0/src/lib.rs:63:1
[INFO] [stdout]    |
[INFO] [stdout] 63 | #![feature(lang_items, panic_info_message)]
[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 `piecrust-uplink` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6eac5055b7c1df66710a05c06e668338404cdd8cb082b618a90a2776c3aa87ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eac5055b7c1df66710a05c06e668338404cdd8cb082b618a90a2776c3aa87ad", kill_on_drop: false }`
[INFO] [stdout] 6eac5055b7c1df66710a05c06e668338404cdd8cb082b618a90a2776c3aa87ad
