[INFO] cloning repository https://github.com/dpc/brainwiki
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dpc/brainwiki" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpc%2Fbrainwiki", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpc%2Fbrainwiki'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd049182c8a02c11b4bde3c55335c8653bae7e2e
[INFO] testing dpc/brainwiki against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpc%2Fbrainwiki" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dpc/brainwiki on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dpc/brainwiki
[INFO] finished tweaking git repo https://github.com/dpc/brainwiki
[INFO] tweaked toml for git repo https://github.com/dpc/brainwiki written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/dpc/brainwiki already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52c6321db84ca9431650ed94ef48a6c87bdc6f1cf7a3632d8c5b22e583d68750
[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" "52c6321db84ca9431650ed94ef48a6c87bdc6f1cf7a3632d8c5b22e583d68750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52c6321db84ca9431650ed94ef48a6c87bdc6f1cf7a3632d8c5b22e583d68750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52c6321db84ca9431650ed94ef48a6c87bdc6f1cf7a3632d8c5b22e583d68750", kill_on_drop: false }`
[INFO] [stdout] 52c6321db84ca9431650ed94ef48a6c87bdc6f1cf7a3632d8c5b22e583d68750
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7cff9af107ac33e31e55cefa9ced2d400559cc552fb1aa2da1042516db2bd5b
[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" "c7cff9af107ac33e31e55cefa9ced2d400559cc552fb1aa2da1042516db2bd5b", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling lazy_static v1.0.2
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]    Compiling same-file v1.0.2
[INFO] [stderr]    Compiling bytecount v0.3.1
[INFO] [stderr]    Compiling stable_deref_trait v1.1.0
[INFO] [stderr]    Compiling data-encoding v2.1.1
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling http-range v0.1.1
[INFO] [stderr]    Compiling stpl v0.5.0 (http://github.com/dpc/stpl#f524d39a)
[INFO] [stderr]    Compiling json v0.11.13
[INFO] [stderr]    Compiling file v1.1.2
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling rpassword v2.0.0
[INFO] [stderr]    Compiling inotify v0.3.0
[INFO] [stderr]    Compiling listenfd v0.3.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/stpl-62a66fe7db697e24/f524d39/src/lib.rs:97:1
[INFO] [stdout]    |
[INFO] [stdout] 97 | #![feature(unboxed_closures)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/stpl-62a66fe7db697e24/f524d39/src/lib.rs:98:1
[INFO] [stdout]    |
[INFO] [stdout] 98 | #![feature(fn_traits)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling proc-macro2 v0.4.8
[INFO] [stderr]    Compiling tokio-executor v0.1.2
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[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]    Compiling actix_derive v0.2.0
[INFO] [stderr] error: could not compile `stpl`
[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" "c7cff9af107ac33e31e55cefa9ced2d400559cc552fb1aa2da1042516db2bd5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7cff9af107ac33e31e55cefa9ced2d400559cc552fb1aa2da1042516db2bd5b", kill_on_drop: false }`
[INFO] [stdout] c7cff9af107ac33e31e55cefa9ced2d400559cc552fb1aa2da1042516db2bd5b