[INFO] updating cached repository https://github.com/smolkov/iotnode
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e7ac646b89354a6f1461466f528b298e07fdafc
[INFO] documenting smolkov/iotnode against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmolkov%2Fiotnode" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/smolkov/iotnode on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3/source/.cargo/config
[INFO] started tweaking git repo https://github.com/smolkov/iotnode
[INFO] finished tweaking git repo https://github.com/smolkov/iotnode
[INFO] tweaked toml for git repo https://github.com/smolkov/iotnode written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/smolkov/iotnode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9f7258994df775799b88e8ea759bfffdcfd71302f1c8412fa0ac613a0b0b2a7
[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" "b9f7258994df775799b88e8ea759bfffdcfd71302f1c8412fa0ac613a0b0b2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9f7258994df775799b88e8ea759bfffdcfd71302f1c8412fa0ac613a0b0b2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9f7258994df775799b88e8ea759bfffdcfd71302f1c8412fa0ac613a0b0b2a7", kill_on_drop: false }`
[INFO] [stdout] b9f7258994df775799b88e8ea759bfffdcfd71302f1c8412fa0ac613a0b0b2a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "RUSTDOCFLAGS=--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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84364163e1b790e825c5c55f45e7cbcfa28d839fda9e0cfcce8b9afc563f3c22
[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" "84364163e1b790e825c5c55f45e7cbcfa28d839fda9e0cfcce8b9afc563f3c22", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling syn v1.0.24
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking tinytga v0.1.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking spidev v0.3.0
[INFO] [stderr]     Checking tinybmp v0.1.1
[INFO] [stderr]     Checking addr2line v0.12.1
[INFO] [stderr]     Checking embedded-graphics v0.4.9
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]     Checking ssd1675 v0.1.0 (https://github.com/wezm/ssd1675.git?branch=busy-wait#fc4241d5)
[INFO] [stderr]     Checking profont v0.1.0
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking i2cdev v0.4.4
[INFO] [stderr]     Checking sysfs_gpio v0.5.4
[INFO] [stderr]    Compiling async-log-attributes v1.0.1
[INFO] [stderr]     Checking linux-embedded-hal v0.2.2
[INFO] [stderr]     Checking async-log v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking serde v1.0.110
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking femme v1.3.0
[INFO] [stderr]     Checking iotnode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting iotnode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/channel.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let name = path.join("name");
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit`
[INFO] [stdout]   --> src/channel.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let unit = path.join("unit");
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_unit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/channel.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let value = path.join("value");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/channel.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn getall(path:&Path) -> Vec<Channel> {
[INFO] [stdout]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/channel.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut channels :Vec<Channel> = Vec::new();
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 43s
[INFO] running `Command { std: "docker" "inspect" "84364163e1b790e825c5c55f45e7cbcfa28d839fda9e0cfcce8b9afc563f3c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84364163e1b790e825c5c55f45e7cbcfa28d839fda9e0cfcce8b9afc563f3c22", kill_on_drop: false }`
[INFO] [stdout] 84364163e1b790e825c5c55f45e7cbcfa28d839fda9e0cfcce8b9afc563f3c22