[INFO] updating cached repository https://github.com/chrisdickinson/blog-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2d1dc6c6db542c1dc8a008c4826891a861ac3c2f
[INFO] checking chrisdickinson/blog-rs against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisdickinson%2Fblog-rs" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chrisdickinson/blog-rs on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/chrisdickinson/blog-rs
[INFO] finished tweaking git repo https://github.com/chrisdickinson/blog-rs
[INFO] tweaked toml for git repo https://github.com/chrisdickinson/blog-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/chrisdickinson/blog-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cc7b77aad2bbcfd75e0f0c6e616f3c1e05b983863a7efb5e8cfbc1dc2de621fd
[INFO] running `"docker" "start" "-a" "cc7b77aad2bbcfd75e0f0c6e616f3c1e05b983863a7efb5e8cfbc1dc2de621fd"`
[INFO] [stderr]    Compiling syn v0.15.31
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]     Checking data-encoding v2.1.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking tokio-sync v0.1.4
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking buf_redux v0.8.1
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.14
[INFO] [stderr]     Checking serde_qs v0.4.5
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.14
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.14
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.14
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking h2 v0.1.18
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.13
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio v0.1.18
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking hyper v0.12.27
[INFO] [stderr]     Checking multipart v0.15.4
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.5
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling futures-select-macro-preview v0.3.0-alpha.14
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking dotenv v0.13.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.14
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-util-preview-0.3.0-alpha.14/src/lib.rs:6:51
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![cfg_attr(feature = "std", feature(async_await, await_macro))]
[INFO] [stderr]   |                                                   ^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: subsumed by `.await` syntax
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0557`.
[INFO] [stderr] error: could not compile `futures-util-preview`.
[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] [stderr] error: build failed
[INFO] running `"docker" "inspect" "cc7b77aad2bbcfd75e0f0c6e616f3c1e05b983863a7efb5e8cfbc1dc2de621fd"`
[INFO] running `"docker" "rm" "-f" "cc7b77aad2bbcfd75e0f0c6e616f3c1e05b983863a7efb5e8cfbc1dc2de621fd"`
[INFO] [stdout] cc7b77aad2bbcfd75e0f0c6e616f3c1e05b983863a7efb5e8cfbc1dc2de621fd
