[INFO] fetching crate cpclib-z80emu 0.4.2-alpha...
[INFO] documenting cpclib-z80emu-0.4.2-alpha against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate cpclib-z80emu 0.4.2-alpha into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cpclib-z80emu 0.4.2-alpha on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cpclib-z80emu 0.4.2-alpha
[INFO] finished tweaking crates.io crate cpclib-z80emu 0.4.2-alpha
[INFO] tweaked toml for crates.io crate cpclib-z80emu 0.4.2-alpha written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-crate v0.1.5
[INFO] [stderr]   Downloaded derivative v2.1.1
[INFO] [stderr]   Downloaded getset v0.0.9
[INFO] [stderr]   Downloaded cargo-lock v4.0.1
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded built v0.4.3
[INFO] [stderr]   Downloaded num_enum_derive v0.4.3
[INFO] [stderr]   Downloaded num_enum v0.4.3
[INFO] [stderr]   Downloaded custom_error v1.8.0
[INFO] [stderr]   Downloaded remain v0.2.2
[INFO] [stderr]   Downloaded bitsets v0.1.1
[INFO] [stderr]   Downloaded cpclib-tokens v0.4.2-alpha
[INFO] [stderr]   Downloaded cpclib-basic v0.4.2-alpha
[INFO] [stderr]   Downloaded cpclib-disc v0.4.2-alpha
[INFO] [stderr]   Downloaded cpclib-sna v0.4.2-alpha
[INFO] [stderr]   Downloaded cpclib-asm v0.4.2-alpha
[INFO] [stderr]   Downloaded delegate v0.3.0
[INFO] [stderr]   Downloaded chardet v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 23060967e491e0b20e0aee90741c51cbc690ad4720711bf98d4028e9f11b5507
[INFO] running `Command { std: "docker" "start" "-a" "23060967e491e0b20e0aee90741c51cbc690ad4720711bf98d4028e9f11b5507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23060967e491e0b20e0aee90741c51cbc690ad4720711bf98d4028e9f11b5507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23060967e491e0b20e0aee90741c51cbc690ad4720711bf98d4028e9f11b5507", kill_on_drop: false }`
[INFO] [stdout] 23060967e491e0b20e0aee90741c51cbc690ad4720711bf98d4028e9f11b5507
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2ed6af1a3a2574768a109d01a64612b3e4346d3631a8632cca67af4bdf47997
[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" "a2ed6af1a3a2574768a109d01a64612b3e4346d3631a8632cca67af4bdf47997", 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] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking bitsets v0.1.1
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking custom_error v1.8.0
[INFO] [stderr]     Checking chardet v0.2.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling delegate v0.3.0
[INFO] [stderr]     Checking rayon v1.4.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling remain v0.2.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling serde v1.0.117
[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 v0.4.3
[INFO] [stderr]    Compiling built v0.4.3
[INFO] [stderr]    Compiling cpclib-sna v0.4.2-alpha
[INFO] [stderr]    Compiling cpclib-tokens v0.4.2-alpha
[INFO] [stderr]    Compiling cpclib-disc v0.4.2-alpha
[INFO] [stderr]    Compiling cpclib-basic v0.4.2-alpha
[INFO] [stderr]    Compiling cpclib-asm v0.4.2-alpha
[INFO] [stderr]     Checking num_enum v0.4.3
[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-sna-0.4.2-alpha/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_drain_as_slice)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[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-sna`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a2ed6af1a3a2574768a109d01a64612b3e4346d3631a8632cca67af4bdf47997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2ed6af1a3a2574768a109d01a64612b3e4346d3631a8632cca67af4bdf47997", kill_on_drop: false }`
[INFO] [stdout] a2ed6af1a3a2574768a109d01a64612b3e4346d3631a8632cca67af4bdf47997
