[INFO] fetching crate cpclib-xfer 0.4.3-alpha...
[INFO] checking cpclib-xfer-0.4.3-alpha against beta for pr-78714
[INFO] extracting crate cpclib-xfer 0.4.3-alpha into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate cpclib-xfer 0.4.3-alpha on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cpclib-xfer 0.4.3-alpha
[INFO] finished tweaking crates.io crate cpclib-xfer 0.4.3-alpha
[INFO] tweaked toml for crates.io crate cpclib-xfer 0.4.3-alpha written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f7c721c0aa48ef5d9ff2e8a5e3848828a5f3d4d28683b3ee0b40c878ecca797
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8f7c721c0aa48ef5d9ff2e8a5e3848828a5f3d4d28683b3ee0b40c878ecca797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f7c721c0aa48ef5d9ff2e8a5e3848828a5f3d4d28683b3ee0b40c878ecca797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f7c721c0aa48ef5d9ff2e8a5e3848828a5f3d4d28683b3ee0b40c878ecca797", kill_on_drop: false }`
[INFO] [stdout] 8f7c721c0aa48ef5d9ff2e8a5e3848828a5f3d4d28683b3ee0b40c878ecca797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82018af3d00800db0b70a19f191af9b5190c374ebbd123821bd4403af7b7b17a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "82018af3d00800db0b70a19f191af9b5190c374ebbd123821bd4403af7b7b17a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]     Checking bitsets v0.1.1
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]    Compiling paste v1.0.3
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking custom_error v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling curl-sys v0.4.38+curl-7.73.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]     Checking path-dedot v3.0.7
[INFO] [stderr]    Compiling form_urlencoded v1.0.0
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling tinyvec v1.0.1
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling remain v0.2.2
[INFO] [stderr]    Compiling delegate v0.4.3
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]     Checking path-absolutize v3.0.6
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling unicode-normalization v0.1.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]     Checking num-bigint v0.3.1
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cargo-lock v4.0.1
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling built v0.4.3
[INFO] [stderr]    Compiling cpclib-sna v0.4.3-alpha
[INFO] [stderr]    Compiling cpclib-tokens v0.4.3-alpha
[INFO] [stderr]    Compiling cpclib-disc v0.4.3-alpha
[INFO] [stderr]    Compiling cpclib-xfer v0.4.3-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cpclib-tokens-0.4.3-alpha/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(stmt_expr_attributes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cpclib-tokens-0.4.3-alpha/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cpclib-tokens`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "82018af3d00800db0b70a19f191af9b5190c374ebbd123821bd4403af7b7b17a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82018af3d00800db0b70a19f191af9b5190c374ebbd123821bd4403af7b7b17a", kill_on_drop: false }`
[INFO] [stdout] 82018af3d00800db0b70a19f191af9b5190c374ebbd123821bd4403af7b7b17a