[INFO] cloning repository https://github.com/nrc/gh-velocity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nrc/gh-velocity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrc%2Fgh-velocity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrc%2Fgh-velocity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c8208b11fc48f3612ea794e4480c5861689742d
[INFO] checking nrc/gh-velocity against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrc%2Fgh-velocity" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nrc/gh-velocity on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nrc/gh-velocity
[INFO] finished tweaking git repo https://github.com/nrc/gh-velocity
[INFO] tweaked toml for git repo https://github.com/nrc/gh-velocity written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/nrc/gh-velocity already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 2edfc61fcc9f1b2278983c10ef248ef29072deaa937d95351d1e2659ac5017ee
[INFO] running `Command { std: "docker" "start" "-a" "2edfc61fcc9f1b2278983c10ef248ef29072deaa937d95351d1e2659ac5017ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2edfc61fcc9f1b2278983c10ef248ef29072deaa937d95351d1e2659ac5017ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2edfc61fcc9f1b2278983c10ef248ef29072deaa937d95351d1e2659ac5017ee", kill_on_drop: false }`
[INFO] [stdout] 2edfc61fcc9f1b2278983c10ef248ef29072deaa937d95351d1e2659ac5017ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcdde3b7222eb97e08830a9938c191819d772a87c6d9d412d7528b83ba60b7ed
[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" "bcdde3b7222eb97e08830a9938c191819d772a87c6d9d412d7528b83ba60b7ed", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.16
[INFO] [stderr]    Compiling openssl v0.10.22
[INFO] [stderr]    Compiling libsqlite3-sys v0.14.0
[INFO] [stderr]    Compiling openssl-sys v0.9.46
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking rusqlite v0.18.0
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio v0.1.19
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking h2 v0.1.18
[INFO] [stderr]     Checking hyperx v0.13.2
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking hyper v0.12.28
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking hubcaps v0.5.0
[INFO] [stderr]     Checking gh-velocity 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(async_await)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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(async_await)]
[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 `gh-velocity`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "bcdde3b7222eb97e08830a9938c191819d772a87c6d9d412d7528b83ba60b7ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcdde3b7222eb97e08830a9938c191819d772a87c6d9d412d7528b83ba60b7ed", kill_on_drop: false }`
[INFO] [stdout] bcdde3b7222eb97e08830a9938c191819d772a87c6d9d412d7528b83ba60b7ed