[INFO] cloning repository https://github.com/GillesMommerency/research
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GillesMommerency/research" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGillesMommerency%2Fresearch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGillesMommerency%2Fresearch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc924991933e1f7c1760a210a67a640c095be684
[INFO] building GillesMommerency/research against try#0c94de7c1a8f4b82b92d562847c35f513f520c7a for pr-102832-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGillesMommerency%2Fresearch" "/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/GillesMommerency/research on toolchain 0c94de7c1a8f4b82b92d562847c35f513f520c7a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0c94de7c1a8f4b82b92d562847c35f513f520c7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GillesMommerency/research
[INFO] finished tweaking git repo https://github.com/GillesMommerency/research
[INFO] tweaked toml for git repo https://github.com/GillesMommerency/research written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/GillesMommerency/research already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0c94de7c1a8f4b82b92d562847c35f513f520c7a" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+0c94de7c1a8f4b82b92d562847c35f513f520c7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4582be8f91f5a3fd97068d30dca34dd6bda55f0abe399a53697ab15cf098a0b5
[INFO] running `Command { std: "docker" "start" "-a" "4582be8f91f5a3fd97068d30dca34dd6bda55f0abe399a53697ab15cf098a0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4582be8f91f5a3fd97068d30dca34dd6bda55f0abe399a53697ab15cf098a0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4582be8f91f5a3fd97068d30dca34dd6bda55f0abe399a53697ab15cf098a0b5", kill_on_drop: false }`
[INFO] [stdout] 4582be8f91f5a3fd97068d30dca34dd6bda55f0abe399a53697ab15cf098a0b5
[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" "RUSTFLAGS=--cap-lints=forbid" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+0c94de7c1a8f4b82b92d562847c35f513f520c7a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a9253d3b2cf7a28be5e156b7819f1bd990e16dbd2de2af11fb2e7cff5088a72
[INFO] running `Command { std: "docker" "start" "-a" "4a9253d3b2cf7a28be5e156b7819f1bd990e16dbd2de2af11fb2e7cff5088a72", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.120
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.120
[INFO] [stderr]    Compiling futures-core v0.3.12
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-sink v0.3.12
[INFO] [stderr]    Compiling futures-channel v0.3.12
[INFO] [stderr]    Compiling futures-task v0.3.12
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.12
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]    Compiling paho-mqtt-sys v0.5.0 (https://github.com/eclipse/paho.mqtt.rust.git?branch=master#798b151f)
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rppal v0.11.3
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling ccs811 v0.1.3
[INFO] [stderr]    Compiling serialport v3.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling futures-util v0.3.12
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling futures-executor v0.3.12
[INFO] [stderr]    Compiling futures v0.3.12
[INFO] [stderr]    Compiling paho-mqtt v0.9.1 (https://github.com/eclipse/paho.mqtt.rust.git?branch=master#798b151f)
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling sds011 v0.2.1
[INFO] [stderr]    Compiling research_project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:112:25
[INFO] [stdout]     |
[INFO] [stdout] 112 |                     Err(e) => "Empty Buffer",
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/gpio.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut pin = match controller.get(pin_num) {
[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: associated function `read_retry` is never used
[INFO] [stdout]   --> src/dht11.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 |   pub fn read_retry(&mut self, retry: usize) -> Result<(f32, f32), SensorError> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pin_num` is never read
[INFO] [stdout]  --> src/gpio.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct GPIOPin {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 9 |   pin_num: u8,
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.13s
[INFO] running `Command { std: "docker" "inspect" "4a9253d3b2cf7a28be5e156b7819f1bd990e16dbd2de2af11fb2e7cff5088a72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a9253d3b2cf7a28be5e156b7819f1bd990e16dbd2de2af11fb2e7cff5088a72", kill_on_drop: false }`
[INFO] [stdout] 4a9253d3b2cf7a28be5e156b7819f1bd990e16dbd2de2af11fb2e7cff5088a72
[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" "RUSTFLAGS=--cap-lints=forbid" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+0c94de7c1a8f4b82b92d562847c35f513f520c7a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 585fe70bce188b3275ddccbf3dc29dea209bfad3cd597d15ae80bbab6d1e5093
[INFO] running `Command { std: "docker" "start" "-a" "585fe70bce188b3275ddccbf3dc29dea209bfad3cd597d15ae80bbab6d1e5093", kill_on_drop: false }`
[INFO] [stderr]    Compiling research_project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:112:25
[INFO] [stdout]     |
[INFO] [stdout] 112 |                     Err(e) => "Empty Buffer",
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/gpio.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut pin = match controller.get(pin_num) {
[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: associated function `read_retry` is never used
[INFO] [stdout]   --> src/dht11.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 |   pub fn read_retry(&mut self, retry: usize) -> Result<(f32, f32), SensorError> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pin_num` is never read
[INFO] [stdout]  --> src/gpio.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct GPIOPin {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 9 |   pin_num: u8,
[INFO] [stdout]   |   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "585fe70bce188b3275ddccbf3dc29dea209bfad3cd597d15ae80bbab6d1e5093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "585fe70bce188b3275ddccbf3dc29dea209bfad3cd597d15ae80bbab6d1e5093", kill_on_drop: false }`
[INFO] [stdout] 585fe70bce188b3275ddccbf3dc29dea209bfad3cd597d15ae80bbab6d1e5093