[INFO] fetching crate libmaj 0.1.6...
[INFO] documenting libmaj-0.1.6 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate libmaj 0.1.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libmaj 0.1.6 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libmaj 0.1.6
[INFO] finished tweaking crates.io crate libmaj 0.1.6
[INFO] tweaked toml for crates.io crate libmaj 0.1.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d215b25166d18b569eab3eae9a5f903543b485cb0b117cf14d5d4cd1031a01c8
[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" "d215b25166d18b569eab3eae9a5f903543b485cb0b117cf14d5d4cd1031a01c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d215b25166d18b569eab3eae9a5f903543b485cb0b117cf14d5d4cd1031a01c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d215b25166d18b569eab3eae9a5f903543b485cb0b117cf14d5d4cd1031a01c8", kill_on_drop: false }`
[INFO] [stdout] d215b25166d18b569eab3eae9a5f903543b485cb0b117cf14d5d4cd1031a01c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] 7eaacf2861d33c5b8d657f66ac03d168e0dea86a2d4fcf11adf1a77041f264d7
[INFO] running `Command { std: "docker" "start" "-a" "7eaacf2861d33c5b8d657f66ac03d168e0dea86a2d4fcf11adf1a77041f264d7", kill_on_drop: false }`
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]     Checking symlink v0.1.0
[INFO] [stderr]    Compiling lzma-sys v0.1.17
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking openssl-sys v0.9.65
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking tar v0.4.35
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking error-chain v0.12.4
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking openssl v0.10.35
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking native-tls v0.2.7
[INFO] [stderr]     Checking hyper v0.12.36
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking file-fetcher v0.1.4
[INFO] [stderr]  Documenting libmaj v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/helpers.rs:42:47
[INFO] [stdout]    |
[INFO] [stdout] 42 | type VarTransform = dyn Fn(&ActionContext) -> (Result<String>) + Sync;
[INFO] [stdout]    |                                               ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/helpers.rs:48:43
[INFO] [stdout]    |
[INFO] [stdout] 48 |             where T:Fn(&ActionContext) -> (Result<String>) + Sync + 'static {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/helpers.rs:103:43
[INFO] [stdout]     |
[INFO] [stdout] 103 |             where T:Fn(&ActionContext) -> (Result<String>) + Sync + 'static {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.40s
[INFO] running `Command { std: "docker" "inspect" "7eaacf2861d33c5b8d657f66ac03d168e0dea86a2d4fcf11adf1a77041f264d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eaacf2861d33c5b8d657f66ac03d168e0dea86a2d4fcf11adf1a77041f264d7", kill_on_drop: false }`
[INFO] [stdout] 7eaacf2861d33c5b8d657f66ac03d168e0dea86a2d4fcf11adf1a77041f264d7
