[INFO] cloning repository https://github.com/Protryon/synchrony
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Protryon/synchrony" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProtryon%2Fsynchrony", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProtryon%2Fsynchrony'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b326af8fc11a120d7f49e92672424159c38bbf1a
[INFO] documenting Protryon/synchrony against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProtryon%2Fsynchrony" "/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/Protryon/synchrony on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Protryon/synchrony
[INFO] finished tweaking git repo https://github.com/Protryon/synchrony
[INFO] tweaked toml for git repo https://github.com/Protryon/synchrony written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Protryon/synchrony already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.45
[INFO] [stderr]   Downloaded time v0.2.6
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75bcf346e3c0c69381d744b1309d65f73a60c8a516f5a039aa748c4ea395316c
[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" "75bcf346e3c0c69381d744b1309d65f73a60c8a516f5a039aa748c4ea395316c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75bcf346e3c0c69381d744b1309d65f73a60c8a516f5a039aa748c4ea395316c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75bcf346e3c0c69381d744b1309d65f73a60c8a516f5a039aa748c4ea395316c", kill_on_drop: false }`
[INFO] [stdout] 75bcf346e3c0c69381d744b1309d65f73a60c8a516f5a039aa748c4ea395316c
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4a4a2aed186082ff5a4159d76d958ec406fc6d0961a8444b71322e17d6a2c86
[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" "e4a4a2aed186082ff5a4159d76d958ec406fc6d0961a8444b71322e17d6a2c86", kill_on_drop: false }`
[INFO] [stderr]    Compiling synchrony v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]     Checking aho-corasick v0.7.7
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling time-macros-impl v0.1.0
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking persistent v0.4.0
[INFO] [stderr]     Checking router v0.6.0
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking redis v0.13.0
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]     Checking time v0.2.6
[INFO] [stderr]     Checking iron-test v0.6.0
[INFO] [stderr]     Checking bodyparser v0.8.0
[INFO] [stderr]  Documenting synchrony v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]  --> src/util/config.rs:8:40
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub static ref NODE_TYPE: String = { default_env("NODE_TYPE", "default") };
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]  --> src/util/config.rs:9:41
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub static ref STORE_TYPE: String = { default_env("STORE_TYPE", "redis") };
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/util/config.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub static ref REDIS_HOST: String = { default_env("REDIS_HOST", "127.0.0.1") };
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/util/config.rs:11:41
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub static ref REDIS_PORT: String = { default_env("REDIS_PORT", "6379") };
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/util/config.rs:12:45
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub static ref REDIS_DATABASE: String = { default_env("REDIS_DATABASE", "") };
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/util/config.rs:13:50
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub static ref HTTP_SERVER_ENABLED: String = { default_env("HTTP_SERVER_ENABLED", "true") };
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/util/config.rs:14:48
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub static ref HTTP_BIND_ADDRESS: String = { default_env("HTTP_BIND_ADDRESS", "127.0.0.1:23071") };
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/util/config.rs:15:43
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub static ref HTTP_API_KEY: String = { default_env("HTTP_API_KEY", "dev_key") };
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/exec/executors/bash.rs:116:39
[INFO] [stdout]     |
[INFO] [stdout] 116 |                     if arr.iter().any({ |arg| !arg.is_string()}) {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.23s
[INFO] running `Command { std: "docker" "inspect" "e4a4a2aed186082ff5a4159d76d958ec406fc6d0961a8444b71322e17d6a2c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4a4a2aed186082ff5a4159d76d958ec406fc6d0961a8444b71322e17d6a2c86", kill_on_drop: false }`
[INFO] [stdout] e4a4a2aed186082ff5a4159d76d958ec406fc6d0961a8444b71322e17d6a2c86