[INFO] fetching crate qtmon 0.1.1...
[INFO] testing qtmon-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate qtmon 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate qtmon 0.1.1 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 crates.io crate qtmon 0.1.1
[INFO] finished tweaking crates.io crate qtmon 0.1.1
[INFO] tweaked toml for crates.io crate qtmon 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate qtmon 0.1.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 32c5bd0b855f10285013aa607b70d632ff4d5088fa162ac2df79a72eb085b394
[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" "32c5bd0b855f10285013aa607b70d632ff4d5088fa162ac2df79a72eb085b394", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32c5bd0b855f10285013aa607b70d632ff4d5088fa162ac2df79a72eb085b394", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c5bd0b855f10285013aa607b70d632ff4d5088fa162ac2df79a72eb085b394", kill_on_drop: false }`
[INFO] [stdout] 32c5bd0b855f10285013aa607b70d632ff4d5088fa162ac2df79a72eb085b394
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] b5b67f967311c310f457de203d56df1f7d82091fa722344f3d134ba3075d6f52
[INFO] running `Command { std: "docker" "start" "-a" "b5b67f967311c310f457de203d56df1f7d82091fa722344f3d134ba3075d6f52", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling pin-project-lite v0.2.0
[INFO] [stderr]    Compiling ipnet v2.3.0
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling urlencoding v1.1.1
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling input_buffer v0.3.1
[INFO] [stderr]    Compiling tinyvec v1.1.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.0
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling buf_redux v0.8.4
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling ring v0.16.16
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.2
[INFO] [stderr]    Compiling socket2 v0.3.17
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling flate2 v1.0.19
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling sha-1 v0.9.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.16
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling headers v0.3.2
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling multipart v0.17.0
[INFO] [stderr]    Compiling tungstenite v0.11.1
[INFO] [stderr]    Compiling webpki v0.21.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling rustls v0.18.1
[INFO] [stderr]    Compiling webpki-roots v0.20.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling tokio v0.2.23
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling serde_with_macros v1.3.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-rustls v0.14.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling tokio-tungstenite v0.11.0
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling serde_with v1.6.0
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling ron v0.6.2
[INFO] [stderr]    Compiling hyper v0.13.9
[INFO] [stderr]    Compiling rustbreak v2.0.0
[INFO] [stderr]    Compiling flexi_logger v0.16.2
[INFO] [stderr]    Compiling hyper-rustls v0.21.0
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling warp v0.2.5
[INFO] [stderr]    Compiling reqwest v0.10.9
[INFO] [stderr]    Compiling questrade-rs v0.1.1
[INFO] [stderr]    Compiling qtmon v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[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 `qtmon` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b5b67f967311c310f457de203d56df1f7d82091fa722344f3d134ba3075d6f52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5b67f967311c310f457de203d56df1f7d82091fa722344f3d134ba3075d6f52", kill_on_drop: false }`
[INFO] [stdout] b5b67f967311c310f457de203d56df1f7d82091fa722344f3d134ba3075d6f52