[INFO] fetching crate cpclib-xfertool 0.4.4...
[INFO] testing cpclib-xfertool-0.4.4 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate cpclib-xfertool 0.4.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate cpclib-xfertool 0.4.4 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cpclib-xfertool 0.4.4
[INFO] finished tweaking crates.io crate cpclib-xfertool 0.4.4
[INFO] tweaked toml for crates.io crate cpclib-xfertool 0.4.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate cpclib-xfertool 0.4.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded term_grid v0.2.0
[INFO] [stderr]   Downloaded cpclib-xfer v0.4.4
[INFO] [stderr]   Downloaded path-absolutize v3.0.6
[INFO] [stderr]   Downloaded rustyline-derive v0.3.1
[INFO] [stderr]   Downloaded path-dedot v3.0.7
[INFO] [stderr]   Downloaded hotwatch v0.4.4
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] a8705c56a09533d98bab580a83bc19313203b96bba41ca37128655468181bb8e
[INFO] running `Command { std: "docker" "start" "-a" "a8705c56a09533d98bab580a83bc19313203b96bba41ca37128655468181bb8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8705c56a09533d98bab580a83bc19313203b96bba41ca37128655468181bb8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8705c56a09533d98bab580a83bc19313203b96bba41ca37128655468181bb8e", kill_on_drop: false }`
[INFO] [stdout] a8705c56a09533d98bab580a83bc19313203b96bba41ca37128655468181bb8e
[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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8a2038f641618f268741851c63ee8ef793696020ee699f6b8c82e1ed2e0bd3a
[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" "e8a2038f641618f268741851c63ee8ef793696020ee699f6b8c82e1ed2e0bd3a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling funty v1.0.1
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling bitsets v0.1.1
[INFO] [stderr]    Compiling paste v1.0.3
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling custom_error v1.8.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.0
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling nom v6.0.0
[INFO] [stderr]    Compiling standback v0.2.13
[INFO] [stderr]    Compiling path-dedot v3.0.7
[INFO] [stderr]    Compiling addr2line v0.14.0
[INFO] [stderr]    Compiling term_grid v0.2.0
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling path-absolutize v3.0.6
[INFO] [stderr]    Compiling bitvec v0.19.4
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling curl-sys v0.4.38+curl-7.73.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling inotify-sys v0.1.4
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling socket2 v0.3.17
[INFO] [stderr]    Compiling filetime v0.2.13
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling dirs-sys-next v0.1.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termize v0.1.1
[INFO] [stderr]    Compiling subprocess v0.2.6
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling inotify v0.8.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling dirs-next v1.0.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tokio v0.2.23
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling notify v4.0.15
[INFO] [stderr]    Compiling notify v5.0.0-pre.4
[INFO] [stderr]    Compiling hotwatch v0.4.4
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling delegate v0.5.0
[INFO] [stderr]    Compiling remain v0.2.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling rustyline-derive v0.3.1
[INFO] [stderr]    Compiling rustyline v6.3.0
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling time v0.2.23
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling cargo-lock v4.0.1
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling hyper v0.13.9
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling built v0.4.3
[INFO] [stderr]    Compiling cpclib-sna v0.4.4
[INFO] [stderr]    Compiling cpclib-tokens v0.4.4
[INFO] [stderr]    Compiling cpclib-disc v0.4.4
[INFO] [stderr]    Compiling cpclib-xfer v0.4.4
[INFO] [stderr]    Compiling cpclib-xfertool v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num_enum v0.5.1
[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-0.4.4/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-0.4.4/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[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" "e8a2038f641618f268741851c63ee8ef793696020ee699f6b8c82e1ed2e0bd3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8a2038f641618f268741851c63ee8ef793696020ee699f6b8c82e1ed2e0bd3a", kill_on_drop: false }`
[INFO] [stdout] e8a2038f641618f268741851c63ee8ef793696020ee699f6b8c82e1ed2e0bd3a