[INFO] cloning repository https://github.com/bbartling/rusty-bacnet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bbartling/rusty-bacnet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbartling%2Frusty-bacnet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbartling%2Frusty-bacnet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a81672fb8dd7be0c055bbbf25542800b2c369a41
[INFO] checking bbartling/rusty-bacnet against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbartling%2Frusty-bacnet" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bbartling/rusty-bacnet on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bbartling/rusty-bacnet
[INFO] finished tweaking git repo https://github.com/bbartling/rusty-bacnet
[INFO] tweaked toml for git repo https://github.com/bbartling/rusty-bacnet written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bbartling/rusty-bacnet 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ea79fe23a7a9cc1cf20d20a62619694f8707e6adf02fd8528cfb09f9ca0ed26
[INFO] running `Command { std: "docker" "start" "-a" "2ea79fe23a7a9cc1cf20d20a62619694f8707e6adf02fd8528cfb09f9ca0ed26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ea79fe23a7a9cc1cf20d20a62619694f8707e6adf02fd8528cfb09f9ca0ed26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ea79fe23a7a9cc1cf20d20a62619694f8707e6adf02fd8528cfb09f9ca0ed26", kill_on_drop: false }`
[INFO] [stdout] 2ea79fe23a7a9cc1cf20d20a62619694f8707e6adf02fd8528cfb09f9ca0ed26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47a677fa66406da5c3e9a381157592f7d8b533381f3a99a63c38f1fd7e04a566
[INFO] running `Command { std: "docker" "start" "-a" "47a677fa66406da5c3e9a381157592f7d8b533381f3a99a63c38f1fd7e04a566", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking rusty-bacnet v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/bvlc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/bvlc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `len` is never read
[INFO] [stdout]    --> src/network.rs:224:17
[INFO] [stdout]     |
[INFO] [stdout] 224 |                 len += 1;
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bvlc_header`
[INFO] [stdout]    --> src/network.rs:295:15
[INFO] [stdout]     |
[INFO] [stdout] 295 |     if let Ok(bvlc_header) = BVLCHeader::parse(data) {
[INFO] [stdout]     |               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bvlc_header`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bvlc_type`, `function`, and `length` are never read
[INFO] [stdout]  --> src/bvlc.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct BVLCHeader {
[INFO] [stdout]   |            ---------- fields in this struct
[INFO] [stdout] 6 |     pub bvlc_type: u8,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 7 |     pub function: u8,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 8 |     pub length: u16,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MessageType` is never used
[INFO] [stdout]   --> src/network.rs:46:6
[INFO] [stdout]    |
[INFO] [stdout] 46 | enum MessageType {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_u8` and `to_u8` are never used
[INFO] [stdout]   --> src/network.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl MessageType {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 64 |     fn from_u8(value: u8) -> Option<Self> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     fn to_u8(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `encode` is never used
[INFO] [stdout]    --> src/network.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl NPDU {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 106 |     pub fn encode(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_incoming_message` is never used
[INFO] [stdout]    --> src/network.rs:294:8
[INFO] [stdout]     |
[INFO] [stdout] 294 | pub fn handle_incoming_message(data: &[u8]) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `len` is never read
[INFO] [stdout]    --> src/network.rs:224:17
[INFO] [stdout]     |
[INFO] [stdout] 224 |                 len += 1;
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bvlc_header`
[INFO] [stdout]    --> src/network.rs:295:15
[INFO] [stdout]     |
[INFO] [stdout] 295 |     if let Ok(bvlc_header) = BVLCHeader::parse(data) {
[INFO] [stdout]     |               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bvlc_header`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bvlc_type`, `function`, and `length` are never read
[INFO] [stdout]  --> src/bvlc.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct BVLCHeader {
[INFO] [stdout]   |            ---------- fields in this struct
[INFO] [stdout] 6 |     pub bvlc_type: u8,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 7 |     pub function: u8,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 8 |     pub length: u16,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `encode` is never used
[INFO] [stdout]    --> src/network.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl NPDU {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 106 |     pub fn encode(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_incoming_message` is never used
[INFO] [stdout]    --> src/network.rs:294:8
[INFO] [stdout]     |
[INFO] [stdout] 294 | pub fn handle_incoming_message(data: &[u8]) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.92s
[INFO] running `Command { std: "docker" "inspect" "47a677fa66406da5c3e9a381157592f7d8b533381f3a99a63c38f1fd7e04a566", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47a677fa66406da5c3e9a381157592f7d8b533381f3a99a63c38f1fd7e04a566", kill_on_drop: false }`
[INFO] [stdout] 47a677fa66406da5c3e9a381157592f7d8b533381f3a99a63c38f1fd7e04a566