[INFO] fetching crate benemalloc 0.1.1-BETA...
[INFO] checking benemalloc-0.1.1-BETA against 1.95.0 for pr-155915
[INFO] extracting crate benemalloc 0.1.1-BETA into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate benemalloc 0.1.1-BETA
[INFO] finished tweaking crates.io crate benemalloc 0.1.1-BETA
[INFO] tweaked toml for crates.io crate benemalloc 0.1.1-BETA written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate benemalloc 0.1.1-BETA 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 20 packages to latest compatible versions
[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 windows-interface v0.56.0
[INFO] [stderr]   Downloaded allocations v0.1.0-BETA
[INFO] [stderr]   Downloaded windows-core v0.56.0
[INFO] [stderr]   Downloaded windows-implement v0.56.0
[INFO] [stderr]   Downloaded windows v0.56.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6b98d1d3c97de218dd6317cdff3aa2b0b844ceb964390a88cda43330ef2aefdd
[INFO] running `Command { std: "docker" "start" "-a" "6b98d1d3c97de218dd6317cdff3aa2b0b844ceb964390a88cda43330ef2aefdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b98d1d3c97de218dd6317cdff3aa2b0b844ceb964390a88cda43330ef2aefdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b98d1d3c97de218dd6317cdff3aa2b0b844ceb964390a88cda43330ef2aefdd", kill_on_drop: false }`
[INFO] [stdout] 6b98d1d3c97de218dd6317cdff3aa2b0b844ceb964390a88cda43330ef2aefdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3d3c5f85a5f2285041550e542adef3fd688fb9bd8a1ed417498b5161a2f1be85
[INFO] running `Command { std: "docker" "start" "-a" "3d3c5f85a5f2285041550e542adef3fd688fb9bd8a1ed417498b5161a2f1be85", kill_on_drop: false }`
[INFO] [stderr]     Checking allocations v0.1.0-BETA
[INFO] [stderr]     Checking benemalloc v0.1.1-BETA (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `benemalloc` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `benemalloc` (lib test) due to 1 previous error
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(c_size_t)]
[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:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(c_size_t)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "3d3c5f85a5f2285041550e542adef3fd688fb9bd8a1ed417498b5161a2f1be85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d3c5f85a5f2285041550e542adef3fd688fb9bd8a1ed417498b5161a2f1be85", kill_on_drop: false }`
[INFO] [stdout] 3d3c5f85a5f2285041550e542adef3fd688fb9bd8a1ed417498b5161a2f1be85
