[INFO] cloning repository https://github.com/Fi3/kteach-r
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fi3/kteach-r" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFi3%2Fkteach-r", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFi3%2Fkteach-r'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4eb5921b00e9049479a8468dc1751876e0aca27
[INFO] checking Fi3/kteach-r against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFi3%2Fkteach-r" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Fi3/kteach-r on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Fi3/kteach-r
[INFO] finished tweaking git repo https://github.com/Fi3/kteach-r
[INFO] tweaked toml for git repo https://github.com/Fi3/kteach-r written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Fi3/kteach-r already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aff86f1cefe78b880e34eb4c61f8b30771fac0905bcdf4e57f505a00fb917439
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aff86f1cefe78b880e34eb4c61f8b30771fac0905bcdf4e57f505a00fb917439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aff86f1cefe78b880e34eb4c61f8b30771fac0905bcdf4e57f505a00fb917439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aff86f1cefe78b880e34eb4c61f8b30771fac0905bcdf4e57f505a00fb917439", kill_on_drop: false }`
[INFO] [stdout] aff86f1cefe78b880e34eb4c61f8b30771fac0905bcdf4e57f505a00fb917439
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49bd6edaefdc0762a3c5f3dcce5861c1d858d22247542d95200154eaa01b88db
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "49bd6edaefdc0762a3c5f3dcce5861c1d858d22247542d95200154eaa01b88db", kill_on_drop: false }`
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[INFO] [stderr]     Checking symphonia v0.1.0
[INFO] [stderr]     Checking wayland-commons v0.28.2
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[INFO] [stderr]     Checking glyph_brush_draw_cache v0.1.3
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[INFO] [stderr]    Compiling thiserror-impl v1.0.22
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[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling bytemuck_derive v1.0.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling druid-derive v0.3.1 (https://github.com/linebender/druid?rev=6fd8ff9c6dd4f8c628347ca7eda4f5d762ae3001#6fd8ff9c)
[INFO] [stderr]     Checking gfx-backend-vulkan v0.6.5
[INFO] [stderr]     Checking clipboard_x11 v0.1.0
[INFO] [stderr]     Checking time-macros v0.1.1
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[INFO] [stderr]     Checking glow_glyph v0.4.0
[INFO] [stderr]     Checking zerocopy v0.3.0
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]     Checking naga v0.2.0
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]     Checking kteach-core v0.1.0 (/opt/rustwide/workdir/kteach-core)
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.0
[INFO] [stdout] warning: field is never read: `midi_connections`
[INFO] [stdout]    --> kteach-core/src/midi.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     midi_connections: Vec<MidiInputConnection<()>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> kteach-core/src/decoder.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |         Err(e) => panic!(format!("{}", e)),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `midi_connections`
[INFO] [stdout]    --> kteach-core/src/midi.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     midi_connections: Vec<MidiInputConnection<()>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> kteach-core/src/decoder.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |         Err(e) => panic!(format!("{}", e)),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking kteach-utils v0.1.0 (/opt/rustwide/workdir/utils)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> utils/src/lib.rs:129:16
[INFO] [stdout]     |
[INFO] [stdout] 129 |         panic!(e);
[INFO] [stdout]     |                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 129 |         panic!("{}", e);
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 129 |         std::panic::panic_any(e);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> utils/src/lib.rs:129:16
[INFO] [stdout]     |
[INFO] [stdout] 129 |         panic!(e);
[INFO] [stdout]     |                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 129 |         panic!("{}", e);
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 129 |         std::panic::panic_any(e);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling glib-sys v0.10.1
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling gio-sys v0.10.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]     Checking wgpu-core v0.6.5
[INFO] [stderr]     Checking smithay-clipboard v0.6.1
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[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking glib v0.10.3
[INFO] [stderr]     Checking iced_futures v0.1.2 (https://github.com/hecrj/iced#87c9df29)
[INFO] [stderr]     Checking iced_native v0.2.2 (https://github.com/hecrj/iced#87c9df29)
[INFO] [stderr]     Checking glutin v0.25.1
[INFO] [stderr]     Checking iced_graphics v0.1.0 (https://github.com/hecrj/iced#87c9df29)
[INFO] [stderr]     Checking iced_winit v0.1.1 (https://github.com/hecrj/iced#87c9df29)
[INFO] [stderr]     Checking iced_glow v0.1.0 (https://github.com/hecrj/iced#87c9df29)
[INFO] [stderr]     Checking iced_glutin v0.1.0 (https://github.com/hecrj/iced#87c9df29)
[INFO] [stderr]     Checking wgpu v0.6.2
[INFO] [stderr]     Checking rental v0.5.5
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[INFO] [stderr]     Checking wgpu_glyph v0.10.0
[INFO] [stderr]     Checking iced_wgpu v0.2.2 (https://github.com/hecrj/iced#87c9df29)
[INFO] [stderr]     Checking iced v0.1.1 (https://github.com/hecrj/iced#87c9df29)
[INFO] [stderr]     Checking iced-gui v0.1.0 (/opt/rustwide/workdir/iced-gui)
[INFO] [stderr]     Checking piet-cairo v0.2.0-pre6
[INFO] [stderr]     Checking piet-common v0.2.0-pre6
[INFO] [stderr]     Checking druid-shell v0.6.0 (https://github.com/linebender/druid?rev=6fd8ff9c6dd4f8c628347ca7eda4f5d762ae3001#6fd8ff9c)
[INFO] [stderr]     Checking druid v0.6.0 (https://github.com/linebender/druid?rev=6fd8ff9c6dd4f8c628347ca7eda4f5d762ae3001#6fd8ff9c)
[INFO] [stderr]     Checking crochet v0.1.0 (https://github.com/raphlinus/crochet?rev=a029a3e343f45262a73955df54755480514d853b#a029a3e3)
[INFO] [stderr]     Checking crochet-gui v0.1.0 (/opt/rustwide/workdir/crochet-gui)
[INFO] [stdout] warning: field is never read: `play`
[INFO] [stdout]   --> crochet-gui/src/player.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     play: PlayerState,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `play`
[INFO] [stdout]   --> crochet-gui/src/player.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     play: PlayerState,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6m 14s
[INFO] running `Command { std: "docker" "inspect" "49bd6edaefdc0762a3c5f3dcce5861c1d858d22247542d95200154eaa01b88db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49bd6edaefdc0762a3c5f3dcce5861c1d858d22247542d95200154eaa01b88db", kill_on_drop: false }`
[INFO] [stdout] 49bd6edaefdc0762a3c5f3dcce5861c1d858d22247542d95200154eaa01b88db