[INFO] updating cached repository das-labor/cand-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/das-labor/cand-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/das-labor/cand-rs" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/das-labor/cand-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/das-labor/cand-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/das-labor/cand-rs" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/das-labor/cand-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/das-labor/cand-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5b6c9bbd636c25b643e885d28a18ca6de5864db9
[INFO] sha for GitHub repo das-labor/cand-rs: 5b6c9bbd636c25b643e885d28a18ca6de5864db9
[INFO] validating manifest of das-labor/cand-rs on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of das-labor/cand-rs on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing das-labor/cand-rs
[INFO] finished frobbing das-labor/cand-rs
[INFO] frobbed toml for das-labor/cand-rs written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/das-labor/cand-rs/Cargo.toml
[INFO] started frobbing das-labor/cand-rs
[INFO] finished frobbing das-labor/cand-rs
[INFO] frobbed toml for das-labor/cand-rs written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/das-labor/cand-rs/Cargo.toml
[INFO] crate das-labor/cand-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking das-labor/cand-rs against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/das-labor/cand-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1a569e8750a6769208d5d557156237fb2e03afdbba6cb0ade5aac0653f8cc1ab
[INFO] running `"docker" "start" "-a" "1a569e8750a6769208d5d557156237fb2e03afdbba6cb0ade5aac0653f8cc1ab"`
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]     Checking nix v0.12.0
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.20
[INFO] [stderr]     Checking serialport v3.2.0
[INFO] [stderr]     Checking mio-serial v3.2.0
[INFO] [stderr]     Checking tokio-serial v3.2.0
[INFO] [stderr]     Checking cand v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `CanMessageRaw`, `CanMessage`
[INFO] [stderr]  --> src/can/encap.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::{CanMessageRaw, CanMessage};
[INFO] [stderr]   |             ^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `serial`
[INFO] [stderr]   --> src/can/uart.rs:13:18
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn canu_init(serial: &str) {
[INFO] [stderr]    |                  ^^^^^^ help: consider prefixing with an underscore: `_serial`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CanAddr`
[INFO] [stderr]  --> src/can.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | type CanAddr = u8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CanPort`
[INFO] [stderr]  --> src/can.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | type CanPort = u8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CanChannel`
[INFO] [stderr]  --> src/can.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | type CanChannel = u16;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CanSubchannel`
[INFO] [stderr]  --> src/can.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | type CanSubchannel = u8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `CANURcvState`
[INFO] [stderr]  --> src/can/uart.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | enum CANURcvState {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `RS232CAN_MAXLENGTH`
[INFO] [stderr]  --> src/can/encap.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const RS232CAN_MAXLENGTH: usize = 20;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] warning: unused imports: `CanMessageRaw`, `CanMessage`
[INFO] [stderr]  --> src/can/encap.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::{CanMessageRaw, CanMessage};
[INFO] [stderr]   |             ^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Rs232CanCmd`
[INFO] [stderr]  --> src/can/encap.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | enum Rs232CanCmd {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RS232CanMsg`
[INFO] [stderr]   --> src/can/encap.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | struct RS232CanMsg {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CanMessageRaw`
[INFO] [stderr]  --> src/can.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct CanMessageRaw {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CanMessage`
[INFO] [stderr]   --> src/can.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | struct CanMessage {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CanMessageV2`
[INFO] [stderr]   --> src/can.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | struct CanMessageV2 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `CanMode`
[INFO] [stderr]   --> src/can.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | enum CanMode {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `serial`
[INFO] [stderr]   --> src/can/uart.rs:13:18
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn canu_init(serial: &str) {
[INFO] [stderr]    |                  ^^^^^^ help: consider prefixing with an underscore: `_serial`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CanAddr`
[INFO] [stderr]  --> src/can.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | type CanAddr = u8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CanPort`
[INFO] [stderr]  --> src/can.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | type CanPort = u8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CanChannel`
[INFO] [stderr]  --> src/can.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | type CanChannel = u16;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CanSubchannel`
[INFO] [stderr]  --> src/can.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | type CanSubchannel = u8;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `CANURcvState`
[INFO] [stderr]  --> src/can/uart.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | enum CANURcvState {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `RS232CAN_MAXLENGTH`
[INFO] [stderr]  --> src/can/encap.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | const RS232CAN_MAXLENGTH: usize = 20;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Rs232CanCmd`
[INFO] [stderr]  --> src/can/encap.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | enum Rs232CanCmd {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RS232CanMsg`
[INFO] [stderr]   --> src/can/encap.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | struct RS232CanMsg {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CanMessageRaw`
[INFO] [stderr]  --> src/can.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct CanMessageRaw {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CanMessage`
[INFO] [stderr]   --> src/can.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | struct CanMessage {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CanMessageV2`
[INFO] [stderr]   --> src/can.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | struct CanMessageV2 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `CanMode`
[INFO] [stderr]   --> src/can.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | enum CanMode {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/main.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let args: Vec<String> = env::args().collect();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]   --> src/main.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |     let port = 2342;
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_port`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/main.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let args: Vec<String> = env::args().collect();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `port`
[INFO] [stderr]   --> src/main.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |     let port = 2342;
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_port`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.32s
[INFO] running `"docker" "inspect" "1a569e8750a6769208d5d557156237fb2e03afdbba6cb0ade5aac0653f8cc1ab"`
[INFO] running `"docker" "rm" "-f" "1a569e8750a6769208d5d557156237fb2e03afdbba6cb0ade5aac0653f8cc1ab"`
[INFO] [stdout] 1a569e8750a6769208d5d557156237fb2e03afdbba6cb0ade5aac0653f8cc1ab