[INFO] cloning repository https://github.com/xfix/PSDevBot-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xfix/PSDevBot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxfix%2FPSDevBot-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxfix%2FPSDevBot-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11ecdfab021ad36dbb439f5a414cb6c0075b159e
[INFO] documenting xfix/PSDevBot-rust against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxfix%2FPSDevBot-rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xfix/PSDevBot-rust on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xfix/PSDevBot-rust
[INFO] finished tweaking git repo https://github.com/xfix/PSDevBot-rust
[INFO] tweaked toml for git repo https://github.com/xfix/PSDevBot-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/xfix/PSDevBot-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5a28ba12cb8170c1777d804d5b9bf3e25fa9a804b41e221f3fa13390a4b1b9d
[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" "f5a28ba12cb8170c1777d804d5b9bf3e25fa9a804b41e221f3fa13390a4b1b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5a28ba12cb8170c1777d804d5b9bf3e25fa9a804b41e221f3fa13390a4b1b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5a28ba12cb8170c1777d804d5b9bf3e25fa9a804b41e221f3fa13390a4b1b9d", kill_on_drop: false }`
[INFO] [stdout] f5a28ba12cb8170c1777d804d5b9bf3e25fa9a804b41e221f3fa13390a4b1b9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "RUSTDOCFLAGS=--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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] 84d4ac67e79ed36e09e5db92cd0c0bc5d5d1b4c62af2baedc2366014d9b21ec2
[INFO] running `Command { std: "docker" "start" "-a" "84d4ac67e79ed36e09e5db92cd0c0bc5d5d1b4c62af2baedc2366014d9b21ec2", kill_on_drop: false }`
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking urlencoding v1.0.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking htmlescape v0.3.1
[INFO] [stderr]    Compiling unicase v2.3.0
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.1
[INFO] [stderr]     Checking block-padding v0.1.3
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.3
[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 rand v0.5.6
[INFO] [stderr]     Checking uname v0.1.1
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling openssl-sys v0.9.43
[INFO] [stderr]    Compiling im v12.3.3
[INFO] [stderr]    Compiling sentry v0.13.0
[INFO] [stderr]     Checking sized-chunks v0.1.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-0.1.25/src/lib.rs:161:34
[INFO] [stdout]     |
[INFO] [stdout] 161 | #![cfg_attr(feature = "nightly", feature(pin))]
[INFO] [stdout]     |                                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking block-buffer v0.7.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking hyper v0.10.15
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]     Checking github_webhook_message_validator v0.1.3
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking http v0.1.16
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[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 `futures`.
[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 `Command { std: "docker" "inspect" "84d4ac67e79ed36e09e5db92cd0c0bc5d5d1b4c62af2baedc2366014d9b21ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84d4ac67e79ed36e09e5db92cd0c0bc5d5d1b4c62af2baedc2366014d9b21ec2", kill_on_drop: false }`
[INFO] [stdout] 84d4ac67e79ed36e09e5db92cd0c0bc5d5d1b4c62af2baedc2366014d9b21ec2