[INFO] fetching crate rcuninit 0.2.1...
[INFO] checking rcuninit-0.2.1 against 1.95.0 for pr-155915
[INFO] extracting crate rcuninit 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate rcuninit 0.2.1
[INFO] finished tweaking crates.io crate rcuninit 0.2.1
[INFO] tweaked toml for crates.io crate rcuninit 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rcuninit 0.2.1 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 rcuninit 0.2.1 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a89311edcabe0933f2758c586b9bb43994b47132d82d452c8b6ffcb19690f41b
[INFO] running `Command { std: "docker" "start" "-a" "a89311edcabe0933f2758c586b9bb43994b47132d82d452c8b6ffcb19690f41b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a89311edcabe0933f2758c586b9bb43994b47132d82d452c8b6ffcb19690f41b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a89311edcabe0933f2758c586b9bb43994b47132d82d452c8b6ffcb19690f41b", kill_on_drop: false }`
[INFO] [stdout] a89311edcabe0933f2758c586b9bb43994b47132d82d452c8b6ffcb19690f41b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] befba7d714c846d87ce8a2aef069947b013867853a99c6de0898f1098c46fbfd
[INFO] running `Command { std: "docker" "start" "-a" "befba7d714c846d87ce8a2aef069947b013867853a99c6de0898f1098c46fbfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rcuninit v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:180:1
[INFO] [stdout]     |
[INFO] [stdout] 180 | #![feature(ptr_alignment_type)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rcuninit` (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] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:180:1
[INFO] [stdout]     |
[INFO] [stdout] 180 | #![feature(ptr_alignment_type)]
[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 `rcuninit` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "befba7d714c846d87ce8a2aef069947b013867853a99c6de0898f1098c46fbfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "befba7d714c846d87ce8a2aef069947b013867853a99c6de0898f1098c46fbfd", kill_on_drop: false }`
[INFO] [stdout] befba7d714c846d87ce8a2aef069947b013867853a99c6de0898f1098c46fbfd
