[INFO] fetching crate mymq 0.1.0... [INFO] checking mymq-0.1.0 against try#50f413885985a8b0a0b6ca0766a0aedd45304953 for pr-155657-1 [INFO] extracting crate mymq 0.1.0 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate mymq 0.1.0 [INFO] finished tweaking crates.io crate mymq 0.1.0 [INFO] tweaked toml for crates.io crate mymq 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mymq 0.1.0 on toolchain 50f413885985a8b0a0b6ca0766a0aedd45304953 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate mymq 0.1.0 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" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] de35225c043392f516e8eab0d253625c6c2a002f6f863d6ba630bf022544e77b [INFO] running `Command { std: "docker" "start" "-a" "de35225c043392f516e8eab0d253625c6c2a002f6f863d6ba630bf022544e77b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "de35225c043392f516e8eab0d253625c6c2a002f6f863d6ba630bf022544e77b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de35225c043392f516e8eab0d253625c6c2a002f6f863d6ba630bf022544e77b", kill_on_drop: false }` [INFO] [stdout] de35225c043392f516e8eab0d253625c6c2a002f6f863d6ba630bf022544e77b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6c060159454879585d2b0b5e1cfc65a69fab6a2c124ed02ab33e30f504b452fc [INFO] running `Command { std: "docker" "start" "-a" "6c060159454879585d2b0b5e1cfc65a69fab6a2c124ed02ab33e30f504b452fc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.132 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.11 [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Checking once_cell v1.13.1 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling unicode-ident v1.0.3 [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling serde v1.0.144 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking cityhash-rs v1.0.1 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling crossbeam-epoch v0.9.10 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Checking crossbeam-channel v0.5.6 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking mio v0.8.4 [INFO] [stderr] Checking crossbeam-deque v0.8.2 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking uuid v1.1.2 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling derive_arbitrary v1.1.3 [INFO] [stderr] Checking arbitrary v1.1.3 [INFO] [stderr] Checking toml v0.5.9 [INFO] [stderr] Checking mymq v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `fixed_byte` [INFO] [stdout] --> src/v5/types.rs:436:16 [INFO] [stdout] | [INFO] [stdout] 436 | pub(crate) use fixed_byte; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:38:7 [INFO] [stdout] | [INFO] [stdout] 38 | #[cfg(feature = "debug")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:68:7 [INFO] [stdout] | [INFO] [stdout] 68 | #[cfg(feature = "debug")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:100:29 [INFO] [stdout] | [INFO] [stdout] 100 | if cfg!(feature = "debug") { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:106:21 [INFO] [stdout] | [INFO] [stdout] 106 | if cfg!(feature = "debug") { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:129:21 [INFO] [stdout] | [INFO] [stdout] 129 | if cfg!(feature = "debug") { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:139:29 [INFO] [stdout] | [INFO] [stdout] 139 | if cfg!(feature = "debug") { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:153:21 [INFO] [stdout] | [INFO] [stdout] 153 | if cfg!(feature = "debug") { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `backtrace` has been stable since 1.65.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:52:12 [INFO] [stdout] | [INFO] [stdout] 52 | #![feature(backtrace)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `result_flattening` has been stable since 1.89.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 55 | #![feature(result_flattening)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `map_first_last` has been stable since 1.66.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:54:12 [INFO] [stdout] | [INFO] [stdout] 54 | #![feature(map_first_last)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `fixed_byte` [INFO] [stdout] --> src/v5/types.rs:436:16 [INFO] [stdout] | [INFO] [stdout] 436 | pub(crate) use fixed_byte; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:38:7 [INFO] [stdout] | [INFO] [stdout] 38 | #[cfg(feature = "debug")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:68:7 [INFO] [stdout] | [INFO] [stdout] 68 | #[cfg(feature = "debug")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:100:29 [INFO] [stdout] | [INFO] [stdout] 100 | if cfg!(feature = "debug") { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:106:21 [INFO] [stdout] | [INFO] [stdout] 106 | if cfg!(feature = "debug") { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:129:21 [INFO] [stdout] | [INFO] [stdout] 129 | if cfg!(feature = "debug") { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:139:29 [INFO] [stdout] | [INFO] [stdout] 139 | if cfg!(feature = "debug") { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `debug` [INFO] [stdout] --> src/broker/spinlock.rs:153:21 [INFO] [stdout] | [INFO] [stdout] 153 | if cfg!(feature = "debug") { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `arbitrary`, `backtrace`, `broker`, `chrono`, `client`, `ctrlc`, `default`, `env_logger`, `fuzzy`, `mymqd`, `netw`, `pcap`, `pnet`, `pnet_datalink`, `prettytable-rs`, `rand`, and `structopt` [INFO] [stdout] = help: consider adding `debug` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable call [INFO] [stdout] --> src/error.rs:99:25 [INFO] [stdout] | [INFO] [stdout] 99 | cause: Some(Box::new($cause)), [INFO] [stdout] | ^^^^^^^^ unreachable call [INFO] [stdout] ... [INFO] [stdout] 253 | let err: result::Result<(), Error> = err!(Infallible, cause: val, "{}", val); [INFO] [stdout] | --------------------------------------- [INFO] [stdout] | | | [INFO] [stdout] | | any code following this expression is unreachable [INFO] [stdout] | in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `backtrace` has been stable since 1.65.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:52:12 [INFO] [stdout] | [INFO] [stdout] 52 | #![feature(backtrace)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `result_flattening` has been stable since 1.89.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 55 | #![feature(result_flattening)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `map_first_last` has been stable since 1.66.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:54:12 [INFO] [stdout] | [INFO] [stdout] 54 | #![feature(map_first_last)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): std::error::Error` is not satisfied [INFO] [stdout] --> src/error.rs:99:25 [INFO] [stdout] | [INFO] [stdout] 99 | cause: Some(Box::new($cause)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ the trait `std::error::Error` is not implemented for `()` [INFO] [stdout] ... [INFO] [stdout] 253 | let err: result::Result<(), Error> = err!(Infallible, cause: val, "{}", val); [INFO] [stdout] | --------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: required for the cast from `Box<()>` to `Box` [INFO] [stdout] = note: this error originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable call [INFO] [stdout] --> src/error.rs:99:25 [INFO] [stdout] | [INFO] [stdout] 99 | cause: Some(Box::new($cause)), [INFO] [stdout] | ^^^^^^^^ unreachable call [INFO] [stdout] ... [INFO] [stdout] 253 | let err: result::Result<(), Error> = err!(Infallible, cause: val, "{}", val); [INFO] [stdout] | --------------------------------------- [INFO] [stdout] | | | [INFO] [stdout] | | any code following this expression is unreachable [INFO] [stdout] | in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `(): std::error::Error` is not satisfied [INFO] [stdout] --> src/error.rs:99:25 [INFO] [stdout] | [INFO] [stdout] 99 | cause: Some(Box::new($cause)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ the trait `std::error::Error` is not implemented for `()` [INFO] [stdout] ... [INFO] [stdout] 253 | let err: result::Result<(), Error> = err!(Infallible, cause: val, "{}", val); [INFO] [stdout] | --------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: required for the cast from `Box<()>` to `Box` [INFO] [stdout] = note: this error originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mymq` (lib) due to 1 previous error; 12 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mymq` (lib test) due to 1 previous error; 12 warnings emitted [INFO] running `Command { std: "docker" "inspect" "6c060159454879585d2b0b5e1cfc65a69fab6a2c124ed02ab33e30f504b452fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c060159454879585d2b0b5e1cfc65a69fab6a2c124ed02ab33e30f504b452fc", kill_on_drop: false }` [INFO] [stdout] 6c060159454879585d2b0b5e1cfc65a69fab6a2c124ed02ab33e30f504b452fc