[INFO] cloning repository https://github.com/notomo/vimonga
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/notomo/vimonga" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotomo%2Fvimonga", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotomo%2Fvimonga'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6e7142f23376d2403697bf3f5118ba64ef08450
[INFO] testing notomo/vimonga against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotomo%2Fvimonga" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/notomo/vimonga on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/notomo/vimonga
[INFO] finished tweaking git repo https://github.com/notomo/vimonga
[INFO] tweaked toml for git repo https://github.com/notomo/vimonga written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/notomo/vimonga already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20b87c6fc4db42b31babca696d71553d8353135dadb4f4d54e5eed4f5d123fe8
[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" "20b87c6fc4db42b31babca696d71553d8353135dadb4f4d54e5eed4f5d123fe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20b87c6fc4db42b31babca696d71553d8353135dadb4f4d54e5eed4f5d123fe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b87c6fc4db42b31babca696d71553d8353135dadb4f4d54e5eed4f5d123fe8", kill_on_drop: false }`
[INFO] [stdout] 20b87c6fc4db42b31babca696d71553d8353135dadb4f4d54e5eed4f5d123fe8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", 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] 838080c2894863ee18b1a27cbe68c6a67333b6f4b9969f97cfd6e0c99af32022
[INFO] running `Command { std: "docker" "start" "-a" "838080c2894863ee18b1a27cbe68c6a67333b6f4b9969f97cfd6e0c99af32022", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling constant_time_eq v0.1.3
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling md5 v0.3.8
[INFO] [stderr]    Compiling data-encoding v2.1.2
[INFO] [stderr]    Compiling separator v0.3.1
[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling crypto-mac v0.6.2
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling hmac v0.6.3
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling md-5 v0.7.0
[INFO] [stderr]    Compiling sha-1 v0.7.0
[INFO] [stderr]    Compiling pbkdf2 v0.2.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling scan_fmt v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.38
[INFO] [stderr]    Compiling bson v0.13.0
[INFO] [stderr]    Compiling textnonce v0.6.4
[INFO] [stderr]    Compiling mongodb v0.3.12
[INFO] [stderr]    Compiling vimonga v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns)]
[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 `vimonga`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "838080c2894863ee18b1a27cbe68c6a67333b6f4b9969f97cfd6e0c99af32022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "838080c2894863ee18b1a27cbe68c6a67333b6f4b9969f97cfd6e0c99af32022", kill_on_drop: false }`
[INFO] [stdout] 838080c2894863ee18b1a27cbe68c6a67333b6f4b9969f97cfd6e0c99af32022