[INFO] fetching crate delay_timer 0.1.0...
[INFO] testing delay_timer-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate delay_timer 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate delay_timer 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate delay_timer 0.1.0
[INFO] finished tweaking crates.io crate delay_timer 0.1.0
[INFO] tweaked toml for crates.io crate delay_timer 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate delay_timer 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cookie v0.14.2
[INFO] [stderr]   Downloaded nb-connect v1.0.2
[INFO] [stderr]   Downloaded unicode-normalization v0.1.13
[INFO] [stderr]   Downloaded error-chain v0.10.0
[INFO] [stderr]   Downloaded signal-hook v0.1.16
[INFO] [stderr]   Downloaded addr2line v0.13.0
[INFO] [stderr]   Downloaded tinyvec v0.3.4
[INFO] [stderr]   Downloaded async-global-executor v1.3.0
[INFO] [stderr]   Downloaded futures-core v0.3.6
[INFO] [stderr]   Downloaded sha2 v0.9.1
[INFO] [stderr]   Downloaded universal-hash v0.4.0
[INFO] [stderr]   Downloaded futures-channel v0.3.6
[INFO] [stderr]   Downloaded aes-soft v0.4.0
[INFO] [stderr]   Downloaded futures-macro v0.3.6
[INFO] [stderr]   Downloaded smol v1.2.4
[INFO] [stderr]   Downloaded ghash v0.3.0
[INFO] [stderr]   Downloaded backtrace v0.3.53
[INFO] [stderr]   Downloaded aead v0.3.2
[INFO] [stderr]   Downloaded tracing-attributes v0.1.11
[INFO] [stderr]   Downloaded http-client v6.1.0
[INFO] [stderr]   Downloaded curl-sys v0.4.38+curl-7.73.0
[INFO] [stderr]   Downloaded nom v4.1.1
[INFO] [stderr]   Downloaded object v0.21.1
[INFO] [stderr]   Downloaded vec-arena v1.0.0
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.18
[INFO] [stderr]   Downloaded gimli v0.22.0
[INFO] [stderr]   Downloaded http-types v2.6.0
[INFO] [stderr]   Downloaded pin-project-lite v0.1.10
[INFO] [stderr]   Downloaded cron_clock v0.6.6
[INFO] [stderr]   Downloaded async-net v1.4.7
[INFO] [stderr]   Downloaded wepoll-sys v3.0.0
[INFO] [stderr]   Downloaded futures-util v0.3.6
[INFO] [stderr]   Downloaded async-io v1.1.10
[INFO] [stderr]   Downloaded futures-task v0.3.6
[INFO] [stderr]   Downloaded surf v2.1.0
[INFO] [stderr]   Downloaded aesni v0.7.0
[INFO] [stderr]   Downloaded const-random v0.1.11
[INFO] [stderr]   Downloaded async-task v4.0.2
[INFO] [stderr]   Downloaded aes v0.4.0
[INFO] [stderr]   Downloaded serde_qs v0.7.0
[INFO] [stderr]   Downloaded subtle v2.3.0
[INFO] [stderr]   Downloaded async-std v1.6.5
[INFO] [stderr]   Downloaded polling v2.0.1
[INFO] [stderr]   Downloaded isahc v0.9.10
[INFO] [stderr]   Downloaded aes-gcm v0.6.0
[INFO] [stderr]   Downloaded futures-lite v1.11.1
[INFO] [stderr]   Downloaded data-encoding v2.3.0
[INFO] [stderr]   Downloaded waitmap v1.1.0
[INFO] [stderr]   Downloaded rs-snowflake v0.3.0
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]   Downloaded encoding_rs v0.8.24
[INFO] [stderr]   Downloaded async-channel v1.5.1
[INFO] [stderr]   Downloaded syn v1.0.44
[INFO] [stderr]   Downloaded curl v0.4.34
[INFO] [stderr]   Downloaded hmac v0.8.1
[INFO] [stderr]   Downloaded fastrand v1.4.0
[INFO] [stderr]   Downloaded infer v0.2.3
[INFO] [stderr]   Downloaded sluice v0.5.2
[INFO] [stderr]   Downloaded async-executor v1.3.0
[INFO] [stderr]   Downloaded event-listener v2.5.1
[INFO] [stderr]   Downloaded blocking v1.0.2
[INFO] [stderr]   Downloaded hkdf v0.9.0
[INFO] [stderr]   Downloaded instant v0.1.7
[INFO] [stderr]   Downloaded futures-io v0.3.6
[INFO] [stderr]   Downloaded const-random-macro v0.1.11
[INFO] [stderr]   Downloaded rustc-demangle v0.1.17
[INFO] [stderr]   Downloaded async-fs v1.5.0
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[INFO] [stderr]   Downloaded crypto-mac v0.8.0
[INFO] [stderr]   Downloaded async-lock v2.3.0
[INFO] [stderr]   Downloaded async-process v1.0.1
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[INFO] [stderr]   Downloaded polyval v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f44538f5e674eec27f2bcdee8add525a30a70bd0d5b04e9ba95d8bc3dcbf4860
[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" "f44538f5e674eec27f2bcdee8add525a30a70bd0d5b04e9ba95d8bc3dcbf4860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f44538f5e674eec27f2bcdee8add525a30a70bd0d5b04e9ba95d8bc3dcbf4860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f44538f5e674eec27f2bcdee8add525a30a70bd0d5b04e9ba95d8bc3dcbf4860", kill_on_drop: false }`
[INFO] [stdout] f44538f5e674eec27f2bcdee8add525a30a70bd0d5b04e9ba95d8bc3dcbf4860
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a2017c4cb0191d5eecdb3b82095373f891b1fa2c66b1d4fcbd70b30807a795e
[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" "0a2017c4cb0191d5eecdb3b82095373f891b1fa2c66b1d4fcbd70b30807a795e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling futures-core v0.3.6
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling pin-project-lite v0.1.10
[INFO] [stderr]    Compiling futures-io v0.3.6
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling async-task v4.0.2
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling arc-swap v0.4.7
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.17
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling rs-snowflake v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling async-lock v2.3.0
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling futures-lite v1.11.1
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling polling v2.0.1
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-io v1.1.10
[INFO] [stderr]    Compiling async-executor v1.3.0
[INFO] [stderr]    Compiling async-fs v1.5.0
[INFO] [stderr]    Compiling async-net v1.4.7
[INFO] [stderr]    Compiling async-process v1.0.1
[INFO] [stderr]    Compiling const-random v0.1.11
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling smol v1.2.4
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling dashmap v3.11.10
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling waitmap v1.1.0
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling cron_clock v0.6.6
[INFO] [stderr]    Compiling delay_timer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![feature(split_inclusive)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(drain_filter)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(test)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `delay_timer`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0a2017c4cb0191d5eecdb3b82095373f891b1fa2c66b1d4fcbd70b30807a795e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a2017c4cb0191d5eecdb3b82095373f891b1fa2c66b1d4fcbd70b30807a795e", kill_on_drop: false }`
[INFO] [stdout] 0a2017c4cb0191d5eecdb3b82095373f891b1fa2c66b1d4fcbd70b30807a795e