[INFO] fetching crate terminal-midi-monitor 0.3.0... [INFO] checking terminal-midi-monitor-0.3.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate terminal-midi-monitor 0.3.0 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate terminal-midi-monitor 0.3.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate terminal-midi-monitor 0.3.0 [INFO] finished tweaking crates.io crate terminal-midi-monitor 0.3.0 [INFO] tweaked toml for crates.io crate terminal-midi-monitor 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 34 packages to latest compatible versions [INFO] [stderr] Adding alsa v0.2.2 (available: v0.9.1) [INFO] [stderr] Adding alsa-sys v0.1.2 (available: v0.3.1) [INFO] [stderr] Adding bitflags v0.9.1 (available: v2.6.0) [INFO] [stderr] Adding bitflags v1.3.2 (available: v2.6.0) [INFO] [stderr] Adding cfg-if v0.1.10 (available: v1.0.0) [INFO] [stderr] Adding clap v2.34.0 (available: v4.5.18) [INFO] [stderr] Adding colored v1.9.4 (available: v2.1.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (available: v0.4.0) [INFO] [stderr] Adding nix v0.9.0 (available: v0.29.0) [INFO] [stderr] Adding strsim v0.8.0 (available: v0.11.1) [INFO] [stderr] Adding textwrap v0.11.0 (available: v0.16.1) [INFO] [stderr] Adding unicode-width v0.1.14 (available: v0.2.0) [INFO] [stderr] Adding windows-sys v0.52.0 (available: v0.59.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9d4620c0a5463660260f76f9bed92518cda575b51913bc7b908903e42893e6e0 [INFO] running `Command { std: "docker" "start" "-a" "9d4620c0a5463660260f76f9bed92518cda575b51913bc7b908903e42893e6e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9d4620c0a5463660260f76f9bed92518cda575b51913bc7b908903e42893e6e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d4620c0a5463660260f76f9bed92518cda575b51913bc7b908903e42893e6e0", kill_on_drop: false }` [INFO] [stdout] 9d4620c0a5463660260f76f9bed92518cda575b51913bc7b908903e42893e6e0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5ade127119e7c518b53d9543be970cfc099b167983c82eac19986395e2e7930d [INFO] running `Command { std: "docker" "start" "-a" "5ade127119e7c518b53d9543be970cfc099b167983c82eac19986395e2e7930d", kill_on_drop: false }` [INFO] [stderr] Checking bitflags v0.9.1 [INFO] [stderr] Compiling alsa-sys v0.1.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking colored v1.9.4 [INFO] [stderr] Checking nix v0.9.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking alsa v0.2.2 [INFO] [stderr] Checking terminal-midi-monitor v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:290:69 [INFO] [stdout] | [INFO] [stdout] 290 | fn get_origin(&mut self, ev: &seq::Event) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 290 | fn get_origin(&mut self, ev: &seq::Event) -> Result> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:294:74 [INFO] [stdout] | [INFO] [stdout] 294 | fn get_port_name(&mut self, source: seq::Addr) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 294 | fn get_port_name(&mut self, source: seq::Addr) -> Result> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:321:53 [INFO] [stdout] | [INFO] [stdout] 321 | fn autoconnect_all(&mut self) -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 321 | fn autoconnect_all(&mut self) -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:335:69 [INFO] [stdout] | [INFO] [stdout] 335 | fn connect_from(&mut self, sender: seq::Addr) -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 335 | fn connect_from(&mut self, sender: seq::Addr) -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:255:51 [INFO] [stdout] | [INFO] [stdout] 255 | fn setup_alsaseq() -> Result<(seq::Seq, i32), Box>{ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 255 | fn setup_alsaseq() -> Result<(seq::Seq, i32), Box>{ [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:344:85 [INFO] [stdout] | [INFO] [stdout] 344 | fn print_midi_ev(midi_monitor: &mut MidiMonitor, ev: &seq::Event) -> Result<(), Box>{ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 344 | fn print_midi_ev(midi_monitor: &mut MidiMonitor, ev: &seq::Event) -> Result<(), Box>{ [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:511:29 [INFO] [stdout] | [INFO] [stdout] 511 | fn main() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 511 | fn main() -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:290:69 [INFO] [stdout] | [INFO] [stdout] 290 | fn get_origin(&mut self, ev: &seq::Event) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 290 | fn get_origin(&mut self, ev: &seq::Event) -> Result> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:294:74 [INFO] [stdout] | [INFO] [stdout] 294 | fn get_port_name(&mut self, source: seq::Addr) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 294 | fn get_port_name(&mut self, source: seq::Addr) -> Result> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:321:53 [INFO] [stdout] | [INFO] [stdout] 321 | fn autoconnect_all(&mut self) -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 321 | fn autoconnect_all(&mut self) -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:335:69 [INFO] [stdout] | [INFO] [stdout] 335 | fn connect_from(&mut self, sender: seq::Addr) -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 335 | fn connect_from(&mut self, sender: seq::Addr) -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:255:51 [INFO] [stdout] | [INFO] [stdout] 255 | fn setup_alsaseq() -> Result<(seq::Seq, i32), Box>{ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 255 | fn setup_alsaseq() -> Result<(seq::Seq, i32), Box>{ [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:344:85 [INFO] [stdout] | [INFO] [stdout] 344 | fn print_midi_ev(midi_monitor: &mut MidiMonitor, ev: &seq::Event) -> Result<(), Box>{ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 344 | fn print_midi_ev(midi_monitor: &mut MidiMonitor, ev: &seq::Event) -> Result<(), Box>{ [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:511:29 [INFO] [stdout] | [INFO] [stdout] 511 | fn main() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 511 | fn main() -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:571:5 [INFO] [stdout] | [INFO] [stdout] 554 | / loop { [INFO] [stdout] 555 | | // FIXME For some events (PortStart,End...) this timeout limits how many to receive per loop. [INFO] [stdout] 556 | | alsa::poll::poll(&mut fds, 1000)?; [INFO] [stdout] 557 | | while input.event_input_pending(true)? != 0 { [INFO] [stdout] ... | [INFO] [stdout] 568 | | } [INFO] [stdout] 569 | | }; [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 570 | [INFO] [stdout] 571 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:571:5 [INFO] [stdout] | [INFO] [stdout] 554 | / loop { [INFO] [stdout] 555 | | // FIXME For some events (PortStart,End...) this timeout limits how many to receive per loop. [INFO] [stdout] 556 | | alsa::poll::poll(&mut fds, 1000)?; [INFO] [stdout] 557 | | while input.event_input_pending(true)? != 0 { [INFO] [stdout] ... | [INFO] [stdout] 568 | | } [INFO] [stdout] 569 | | }; [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 570 | [INFO] [stdout] 571 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:347:9 [INFO] [stdout] | [INFO] [stdout] 347 | let mut event; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:347:9 [INFO] [stdout] | [INFO] [stdout] 347 | let mut event; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.26s [INFO] running `Command { std: "docker" "inspect" "5ade127119e7c518b53d9543be970cfc099b167983c82eac19986395e2e7930d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ade127119e7c518b53d9543be970cfc099b167983c82eac19986395e2e7930d", kill_on_drop: false }` [INFO] [stdout] 5ade127119e7c518b53d9543be970cfc099b167983c82eac19986395e2e7930d