[INFO] cloning repository https://github.com/manio/hard
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/manio/hard" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanio%2Fhard", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanio%2Fhard'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b3e1776f01e287ffdacd14af49d0eda90f3f4b3
[INFO] checking manio/hard against try#d42a007e04d1d7df0de258d39ac2402f35aba932 for pr-103029-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanio%2Fhard" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/manio/hard on toolchain d42a007e04d1d7df0de258d39ac2402f35aba932
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d42a007e04d1d7df0de258d39ac2402f35aba932" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/manio/hard
[INFO] finished tweaking git repo https://github.com/manio/hard
[INFO] tweaked toml for git repo https://github.com/manio/hard written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/manio/hard already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d42a007e04d1d7df0de258d39ac2402f35aba932" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+d42a007e04d1d7df0de258d39ac2402f35aba932" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a08ebcf8dd4ed7645c33c692059da28376de9f47645a3e6a2fa2c5d4a9766a7
[INFO] running `Command { std: "docker" "start" "-a" "8a08ebcf8dd4ed7645c33c692059da28376de9f47645a3e6a2fa2c5d4a9766a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a08ebcf8dd4ed7645c33c692059da28376de9f47645a3e6a2fa2c5d4a9766a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a08ebcf8dd4ed7645c33c692059da28376de9f47645a3e6a2fa2c5d4a9766a7", kill_on_drop: false }`
[INFO] [stdout] 8a08ebcf8dd4ed7645c33c692059da28376de9f47645a3e6a2fa2c5d4a9766a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+d42a007e04d1d7df0de258d39ac2402f35aba932" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "f8b09efd8d2c98754ae60b344fffc45ea1da772387cf0b3b4a7a92bdae834851", kill_on_drop: false }`
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[INFO] [stdout] warning: variant `AlarmArming` is never constructed
[INFO] [stdout]   --> src/ethlcd.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum BeepMethod {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 16 |     AlarmArming,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BeepMethod` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Off` is never constructed
[INFO] [stdout]   --> src/onewire.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub enum Operation {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] 63 |     On,
[INFO] [stdout] 64 |     Off,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `AlarmArming` is never constructed
[INFO] [stdout]   --> src/ethlcd.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum BeepMethod {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 16 |     AlarmArming,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BeepMethod` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Off` is never constructed
[INFO] [stdout]   --> src/onewire.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub enum Operation {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] 63 |     On,
[INFO] [stdout] 64 |     Off,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]     --> src/onewire.rs:1158:24
[INFO] [stdout]      |
[INFO] [stdout] 1158 |             for tag in sensor_tags.iter().find(|&x| x.starts_with("wicket_gate")) {
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]      |
[INFO] [stdout] 1158 |             while let Some(tag) = sensor_tags.iter().find(|&x| x.starts_with("wicket_gate")) {
[INFO] [stdout]      |             ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]      |
[INFO] [stdout] 1158 |             if let Some(tag) = sensor_tags.iter().find(|&x| x.starts_with("wicket_gate")) {
[INFO] [stdout]      |             ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]     --> src/onewire.rs:1158:24
[INFO] [stdout]      |
[INFO] [stdout] 1158 |             for tag in sensor_tags.iter().find(|&x| x.starts_with("wicket_gate")) {
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]      |
[INFO] [stdout] 1158 |             while let Some(tag) = sensor_tags.iter().find(|&x| x.starts_with("wicket_gate")) {
[INFO] [stdout]      |             ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]      |
[INFO] [stdout] 1158 |             if let Some(tag) = sensor_tags.iter().find(|&x| x.starts_with("wicket_gate")) {
[INFO] [stdout]      |             ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]     --> src/onewire.rs:1359:33
[INFO] [stdout]      |
[INFO] [stdout] 1359 |                 for rfid_tag in rfid_tags.iter().find(|&x| x.id_tag as u32 == *id) {
[INFO] [stdout]      |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]      |
[INFO] [stdout] 1359 |                 while let Some(rfid_tag) = rfid_tags.iter().find(|&x| x.id_tag as u32 == *id) {
[INFO] [stdout]      |                 ~~~~~~~~~~~~~~~        ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]      |
[INFO] [stdout] 1359 |                 if let Some(rfid_tag) = rfid_tags.iter().find(|&x| x.id_tag as u32 == *id) {
[INFO] [stdout]      |                 ~~~~~~~~~~~~        ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]     --> src/onewire.rs:1359:33
[INFO] [stdout]      |
[INFO] [stdout] 1359 |                 for rfid_tag in rfid_tags.iter().find(|&x| x.id_tag as u32 == *id) {
[INFO] [stdout]      |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]      |
[INFO] [stdout] 1359 |                 while let Some(rfid_tag) = rfid_tags.iter().find(|&x| x.id_tag as u32 == *id) {
[INFO] [stdout]      |                 ~~~~~~~~~~~~~~~        ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]      |
[INFO] [stdout] 1359 |                 if let Some(rfid_tag) = rfid_tags.iter().find(|&x| x.id_tag as u32 == *id) {
[INFO] [stdout]      |                 ~~~~~~~~~~~~        ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.70s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: http-types v2.9.0, rocket v0.5.0-dev (https://github.com/SergioBenitez/Rocket#1f1f44f3), ubyte v0.10.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "f8b09efd8d2c98754ae60b344fffc45ea1da772387cf0b3b4a7a92bdae834851", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b09efd8d2c98754ae60b344fffc45ea1da772387cf0b3b4a7a92bdae834851", kill_on_drop: false }`
[INFO] [stdout] f8b09efd8d2c98754ae60b344fffc45ea1da772387cf0b3b4a7a92bdae834851