[INFO] fetching crate disk-based-bfs 0.1.0...
[INFO] checking disk-based-bfs-0.1.0 against 1.95.0 for pr-155915
[INFO] extracting crate disk-based-bfs 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate disk-based-bfs 0.1.0
[INFO] finished tweaking crates.io crate disk-based-bfs 0.1.0
[INFO] tweaked toml for crates.io crate disk-based-bfs 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate disk-based-bfs 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 69 packages to latest compatible versions
[INFO] [stderr]       Adding fs4 v0.12.0 (available: v1.1.0)
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[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 fs4 v0.12.0
[INFO] [stderr]   Downloaded cityhasher v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 79f0f6e1a19cb3ae0d8b8840113bbdf908892f6260e2750f0e9de88e9ba78b9c
[INFO] running `Command { std: "docker" "start" "-a" "79f0f6e1a19cb3ae0d8b8840113bbdf908892f6260e2750f0e9de88e9ba78b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79f0f6e1a19cb3ae0d8b8840113bbdf908892f6260e2750f0e9de88e9ba78b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f0f6e1a19cb3ae0d8b8840113bbdf908892f6260e2750f0e9de88e9ba78b9c", kill_on_drop: false }`
[INFO] [stdout] 79f0f6e1a19cb3ae0d8b8840113bbdf908892f6260e2750f0e9de88e9ba78b9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cb1a3e1565860043be0c62f98929aa689436aa6a37cb4aa03d8ba380eca6009c
[INFO] running `Command { std: "docker" "start" "-a" "cb1a3e1565860043be0c62f98929aa689436aa6a37cb4aa03d8ba380eca6009c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking cityhasher v0.1.0
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]    Compiling cc v1.2.62
[INFO] [stderr]     Checking fs4 v0.12.0
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]     Checking zstd v0.13.3
[INFO] [stderr]     Checking disk-based-bfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(buf_read_has_data_left)]
[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:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(buf_read_has_data_left)]
[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 `disk-based-bfs` (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] [stderr] error: could not compile `disk-based-bfs` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "cb1a3e1565860043be0c62f98929aa689436aa6a37cb4aa03d8ba380eca6009c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb1a3e1565860043be0c62f98929aa689436aa6a37cb4aa03d8ba380eca6009c", kill_on_drop: false }`
[INFO] [stdout] cb1a3e1565860043be0c62f98929aa689436aa6a37cb4aa03d8ba380eca6009c
