[INFO] cloning repository https://github.com/lmeninato/bnav
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lmeninato/bnav" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flmeninato%2Fbnav", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flmeninato%2Fbnav'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eaf215c8836ac50acea0867f50685b6b6e1eac6f
[INFO] testing lmeninato/bnav against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flmeninato%2Fbnav" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lmeninato/bnav on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lmeninato/bnav
[INFO] finished tweaking git repo https://github.com/lmeninato/bnav
[INFO] tweaked toml for git repo https://github.com/lmeninato/bnav written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/lmeninato/bnav already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c0913c157b2c438b328b4158b45294f74eef15add6093b1198f19556a5f5b05
[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" "2c0913c157b2c438b328b4158b45294f74eef15add6093b1198f19556a5f5b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c0913c157b2c438b328b4158b45294f74eef15add6093b1198f19556a5f5b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c0913c157b2c438b328b4158b45294f74eef15add6093b1198f19556a5f5b05", kill_on_drop: false }`
[INFO] [stdout] 2c0913c157b2c438b328b4158b45294f74eef15add6093b1198f19556a5f5b05
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56ab0ba052d13249235b302b9cd63a31a5887b5aa3bca0bba62fa2aa7a773e3e
[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" "56ab0ba052d13249235b302b9cd63a31a5887b5aa3bca0bba62fa2aa7a773e3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling cpufeatures v0.1.4
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling tokio v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling sha-1 v0.9.6
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling headers v0.3.4
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling tungstenite v0.12.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling multipart v0.17.1
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stderr]    Compiling tokio-stream v0.1.6
[INFO] [stderr]    Compiling tokio-tungstenite v0.13.0
[INFO] [stderr]    Compiling h2 v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling hyper v0.14.9
[INFO] [stderr]    Compiling warp v0.3.1
[INFO] [stderr]    Compiling bnav v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_hygiene, decl_macro)]
[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 `bnav` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "56ab0ba052d13249235b302b9cd63a31a5887b5aa3bca0bba62fa2aa7a773e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56ab0ba052d13249235b302b9cd63a31a5887b5aa3bca0bba62fa2aa7a773e3e", kill_on_drop: false }`
[INFO] [stdout] 56ab0ba052d13249235b302b9cd63a31a5887b5aa3bca0bba62fa2aa7a773e3e