[INFO] fetching crate sync-linux-no-libc 0.1.1...
[INFO] checking sync-linux-no-libc-0.1.1 against 1.95.0 for pr-155915
[INFO] extracting crate sync-linux-no-libc 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate sync-linux-no-libc 0.1.1
[INFO] finished tweaking crates.io crate sync-linux-no-libc 0.1.1
[INFO] tweaked toml for crates.io crate sync-linux-no-libc 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sync-linux-no-libc 0.1.1 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 sync-linux-no-libc 0.1.1 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syscalls v0.6.18
[INFO] [stderr]   Downloaded nc v0.9.6
[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] 3f1953bd13adaab4588662549830c0e488d18f53ac0dcc6fdf32d9ce6ff7d8a0
[INFO] running `Command { std: "docker" "start" "-a" "3f1953bd13adaab4588662549830c0e488d18f53ac0dcc6fdf32d9ce6ff7d8a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f1953bd13adaab4588662549830c0e488d18f53ac0dcc6fdf32d9ce6ff7d8a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f1953bd13adaab4588662549830c0e488d18f53ac0dcc6fdf32d9ce6ff7d8a0", kill_on_drop: false }`
[INFO] [stdout] 3f1953bd13adaab4588662549830c0e488d18f53ac0dcc6fdf32d9ce6ff7d8a0
[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] bbf7b1c8529350d3c676e446f09a2c4e7fbd77569991bde7849785c02e60ecd0
[INFO] running `Command { std: "docker" "start" "-a" "bbf7b1c8529350d3c676e446f09a2c4e7fbd77569991bde7849785c02e60ecd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.2.30
[INFO] [stderr]    Compiling syscalls v0.6.18
[INFO] [stderr]    Compiling nc v0.9.6
[INFO] [stderr]     Checking sync-linux-no-libc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(must_not_suspend)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(must_not_suspend)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sync-linux-no-libc` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sync-linux-no-libc` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "bbf7b1c8529350d3c676e446f09a2c4e7fbd77569991bde7849785c02e60ecd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbf7b1c8529350d3c676e446f09a2c4e7fbd77569991bde7849785c02e60ecd0", kill_on_drop: false }`
[INFO] [stdout] bbf7b1c8529350d3c676e446f09a2c4e7fbd77569991bde7849785c02e60ecd0
