[INFO] cloning repository https://github.com/giuseppecalderaro/gcore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/giuseppecalderaro/gcore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiuseppecalderaro%2Fgcore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiuseppecalderaro%2Fgcore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a6c6e46cb0b395fc119541a438cee60fe2e5b1bb
[INFO] testing giuseppecalderaro/gcore against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiuseppecalderaro%2Fgcore" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/giuseppecalderaro/gcore on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/giuseppecalderaro/gcore
[INFO] finished tweaking git repo https://github.com/giuseppecalderaro/gcore
[INFO] tweaked toml for git repo https://github.com/giuseppecalderaro/gcore written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/giuseppecalderaro/gcore already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 59474a3c00bee7e6c5e8d49b6b21a1b37899a50abe0f522bade9007be9ee531a
[INFO] running `Command { std: "docker" "start" "-a" "59474a3c00bee7e6c5e8d49b6b21a1b37899a50abe0f522bade9007be9ee531a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59474a3c00bee7e6c5e8d49b6b21a1b37899a50abe0f522bade9007be9ee531a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59474a3c00bee7e6c5e8d49b6b21a1b37899a50abe0f522bade9007be9ee531a", kill_on_drop: false }`
[INFO] [stdout] 59474a3c00bee7e6c5e8d49b6b21a1b37899a50abe0f522bade9007be9ee531a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] e4f656baf62cb2c51f60ae9da422927ace495d0dee19ad0f35436dfd1d8ea706
[INFO] running `Command { std: "docker" "start" "-a" "e4f656baf62cb2c51f60ae9da422927ace495d0dee19ad0f35436dfd1d8ea706", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling futures-task v0.3.18
[INFO] [stderr]    Compiling futures-util v0.3.18
[INFO] [stderr]    Compiling futures-io v0.3.18
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling fixedbitset v0.4.0
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling serde_json v1.0.70
[INFO] [stderr]    Compiling capnp v0.14.3
[INFO] [stderr]    Compiling fixed v1.11.0
[INFO] [stderr]    Compiling ref_slice v1.2.1
[INFO] [stderr]    Compiling sbe_objs v0.1.0 (/opt/rustwide/workdir/src/generated/sbe_objs)
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling openssl-sys v0.9.71
[INFO] [stderr]    Compiling snap v0.2.5
[INFO] [stderr]    Compiling az v1.2.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling capnpc v0.14.4
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]    Compiling prost-derive v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling uuid-macro-internal v1.0.0-alpha.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling prost-build v0.9.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling crossbeam v0.8.1
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling headers v0.3.5
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling twox-hash v1.6.1
[INFO] [stderr]    Compiling uuid v1.0.0-alpha.1
[INFO] [stderr]    Compiling multipart v0.18.0
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling tungstenite v0.14.0
[INFO] [stderr]    Compiling prost v0.9.0
[INFO] [stderr]    Compiling prost-types v0.9.0
[INFO] [stderr]    Compiling kafka v0.8.0
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling tokio-stream v0.1.8
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling tungstenite v0.16.0
[INFO] [stderr]    Compiling h2 v0.3.7
[INFO] [stderr]    Compiling futures-executor v0.3.18
[INFO] [stderr]    Compiling tokio-tungstenite v0.15.0
[INFO] [stderr]    Compiling redis-async v0.12.0
[INFO] [stderr]    Compiling tokio-tungstenite v0.16.0
[INFO] [stderr]    Compiling futures v0.3.18
[INFO] [stderr]    Compiling gcore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling hyper v0.14.15
[INFO] [stderr]    Compiling routerify v2.2.0
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling warp v0.3.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[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 `gcore` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e4f656baf62cb2c51f60ae9da422927ace495d0dee19ad0f35436dfd1d8ea706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4f656baf62cb2c51f60ae9da422927ace495d0dee19ad0f35436dfd1d8ea706", kill_on_drop: false }`
[INFO] [stdout] e4f656baf62cb2c51f60ae9da422927ace495d0dee19ad0f35436dfd1d8ea706