[INFO] updating cached repository https://github.com/vmasdani/smart-garden
[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] [stderr] From https://github.com/vmasdani/smart-garden
[INFO] [stderr]    9994f19..fa89890  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fa8989056e4b942ee988bc3442c8580c01f7954b
[INFO] checking vmasdani/smart-garden against master#7f940ef5d91b53e889f111f27e00849f2f5ae4a2 for pr-72493
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvmasdani%2Fsmart-garden" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vmasdani/smart-garden on toolchain 7f940ef5d91b53e889f111f27e00849f2f5ae4a2
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7f940ef5d91b53e889f111f27e00849f2f5ae4a2" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/vmasdani/smart-garden
[INFO] finished tweaking git repo https://github.com/vmasdani/smart-garden
[INFO] tweaked toml for git repo https://github.com/vmasdani/smart-garden written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/vmasdani/smart-garden already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7f940ef5d91b53e889f111f27e00849f2f5ae4a2" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+7f940ef5d91b53e889f111f27e00849f2f5ae4a2" "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] be65edfea412005ad2fa5855b4a7d68a09576e8869157c987aca7fbb67d2f8b9
[INFO] running `"docker" "start" "-a" "be65edfea412005ad2fa5855b4a7d68a09576e8869157c987aca7fbb67d2f8b9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.14
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking object v0.19.0
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]    Compiling ssd1306 v0.2.6
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking checked_int_cast v1.0.0
[INFO] [stderr]     Checking machine-ip v0.2.1
[INFO] [stderr]     Checking mosquitto-client v0.1.5
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.3
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling wiringpi v0.2.4
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking futures-timer v0.1.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking qrcode v0.8.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling paho-mqtt-sys v0.3.0
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]     Checking tinybmp v0.1.0
[INFO] [stderr]     Checking tinytga v0.1.0
[INFO] [stderr]     Checking embedded-graphics v0.4.9
[INFO] [stderr]     Checking spidev v0.3.0
[INFO] [stderr]     Checking addr2line v0.12.1
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]     Checking sysfs_gpio v0.5.4
[INFO] [stderr]     Checking i2cdev v0.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]     Checking linux-embedded-hal v0.2.2
[INFO] [stderr]     Checking gpio-cdev v0.2.0
[INFO] [stderr]     Checking paho-mqtt v0.7.1
[INFO] [stderr]     Checking rusqlite v0.21.0
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking smart_garden v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `thread`, `time::Duration`
[INFO] [stderr]  --> src/router.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::{thread, time::Duration};
[INFO] [stderr]   |           ^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `thread`, `time::Duration`
[INFO] [stderr]  --> src/router.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::{thread, time::Duration};
[INFO] [stderr]   |           ^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let (conn, mut disp, relay_pin) = init::init();
[INFO] [stderr]    |                ----^^^^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let (conn, mut disp, relay_pin) = init::init();
[INFO] [stderr]    |                ----^^^^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `poll_loop`
[INFO] [stderr]   --> src/ip_poller.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn poll_loop() {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_display`
[INFO] [stderr]  --> src/test_display.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn test_display(disp: &mut GraphicsMode<I2cInterface<I2cdev>>) {
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `poll_loop`
[INFO] [stderr]   --> src/ip_poller.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn poll_loop() {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_display`
[INFO] [stderr]  --> src/test_display.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn test_display(disp: &mut GraphicsMode<I2cInterface<I2cdev>>) {
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `"docker" "inspect" "be65edfea412005ad2fa5855b4a7d68a09576e8869157c987aca7fbb67d2f8b9"`
[INFO] running `"docker" "rm" "-f" "be65edfea412005ad2fa5855b4a7d68a09576e8869157c987aca7fbb67d2f8b9"`
[INFO] [stdout] be65edfea412005ad2fa5855b4a7d68a09576e8869157c987aca7fbb67d2f8b9