[INFO] updating cached repository https://github.com/eldad/mpk-mini-ctl
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 01aff135ddd048cb18ad52dda373fd2ffc75b0a4
[INFO] checking eldad/mpk-mini-ctl against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Feldad%2Fmpk-mini-ctl" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eldad/mpk-mini-ctl on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/eldad/mpk-mini-ctl
[INFO] finished tweaking git repo https://github.com/eldad/mpk-mini-ctl
[INFO] tweaked toml for git repo https://github.com/eldad/mpk-mini-ctl written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/eldad/mpk-mini-ctl already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1d955c68bffd02dd0dcb7c3b2cf79b1fa2d497ac5d0e041b6e2370018352185f
[INFO] running `"docker" "start" "-a" "1d955c68bffd02dd0dcb7c3b2cf79b1fa2d497ac5d0e041b6e2370018352185f"`
[INFO] [stderr]     Checking serde_yaml v0.7.3
[INFO] [stderr]     Checking simplelog v0.5.0
[INFO] [stderr]     Checking mpk-mini-ctl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:49:32
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:81:32
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:48:63
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn midi_out_connect() -> Result<MidiOutputConnection, Box<Error>> {
[INFO] [stderr]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:64:98
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn midi_in_connect <F, T: Send> (callback: F, data: T) -> Result<MidiInputConnection<T>, Box<Error>>
[INFO] [stderr]    |                                                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:49:30
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn snoop() -> Result<(), Box<Error>> {
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:62:36
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn passthrough() -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:94:61
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn get_bank_desc(bank: u8) -> Result<MpkBankDescriptor, Box<Error>> {
[INFO] [stderr]    |                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:128:80
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn set_bank_from_desc(bank:u8, bank_desc: MpkBankDescriptor) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:138:42
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn show_bank(bank: u8) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:144:47
[INFO] [stderr]     |
[INFO] [stderr] 144 | fn dump_bank_yaml(bank: u8) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:151:58
[INFO] [stderr]     |
[INFO] [stderr] 151 | fn cmd_show_bank(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:157:63
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn cmd_dump_bank_yaml(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:163:53
[INFO] [stderr]     |
[INFO] [stderr] 163 | fn cmd_show(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:171:58
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn cmd_dump_yaml(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:179:58
[INFO] [stderr]     |
[INFO] [stderr] 179 | fn cmd_read_yaml(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:187:58
[INFO] [stderr]     |
[INFO] [stderr] 187 | fn cmd_send_yaml(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:195:28
[INFO] [stderr]     |
[INFO] [stderr] 195 | fn app() -> Result<(), Box<Error>> {
[INFO] [stderr]     |                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:49:32
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:81:32
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:48:63
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn midi_out_connect() -> Result<MidiOutputConnection, Box<Error>> {
[INFO] [stderr]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:64:98
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn midi_in_connect <F, T: Send> (callback: F, data: T) -> Result<MidiInputConnection<T>, Box<Error>>
[INFO] [stderr]    |                                                                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:49:30
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn snoop() -> Result<(), Box<Error>> {
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:62:36
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn passthrough() -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:94:61
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn get_bank_desc(bank: u8) -> Result<MpkBankDescriptor, Box<Error>> {
[INFO] [stderr]    |                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:128:80
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn set_bank_from_desc(bank:u8, bank_desc: MpkBankDescriptor) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:138:42
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn show_bank(bank: u8) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:144:47
[INFO] [stderr]     |
[INFO] [stderr] 144 | fn dump_bank_yaml(bank: u8) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:151:58
[INFO] [stderr]     |
[INFO] [stderr] 151 | fn cmd_show_bank(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:157:63
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn cmd_dump_bank_yaml(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:163:53
[INFO] [stderr]     |
[INFO] [stderr] 163 | fn cmd_show(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:171:58
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn cmd_dump_yaml(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:179:58
[INFO] [stderr]     |
[INFO] [stderr] 179 | fn cmd_read_yaml(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:187:58
[INFO] [stderr]     |
[INFO] [stderr] 187 | fn cmd_send_yaml(matches: &ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:195:28
[INFO] [stderr]     |
[INFO] [stderr] 195 | fn app() -> Result<(), Box<Error>> {
[INFO] [stderr]     |                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.41s
[INFO] running `"docker" "inspect" "1d955c68bffd02dd0dcb7c3b2cf79b1fa2d497ac5d0e041b6e2370018352185f"`
[INFO] running `"docker" "rm" "-f" "1d955c68bffd02dd0dcb7c3b2cf79b1fa2d497ac5d0e041b6e2370018352185f"`
[INFO] [stdout] 1d955c68bffd02dd0dcb7c3b2cf79b1fa2d497ac5d0e041b6e2370018352185f