[INFO] cloning repository https://github.com/Vurich/basic-midi-sequencer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Vurich/basic-midi-sequencer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVurich%2Fbasic-midi-sequencer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVurich%2Fbasic-midi-sequencer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d006dbaaf9484dd59cbd8e8ec09711e0f93d8fea
[INFO] checking Vurich/basic-midi-sequencer against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVurich%2Fbasic-midi-sequencer" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vurich/basic-midi-sequencer on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Vurich/basic-midi-sequencer
[INFO] finished tweaking git repo https://github.com/Vurich/basic-midi-sequencer
[INFO] tweaked toml for git repo https://github.com/Vurich/basic-midi-sequencer written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Vurich/basic-midi-sequencer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0bb3002c981ff5008bafbabcd0e88bc0a83a5e8d233f1e03457a16c8f63e4646
[INFO] running `Command { std: "docker" "start" "-a" "0bb3002c981ff5008bafbabcd0e88bc0a83a5e8d233f1e03457a16c8f63e4646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bb3002c981ff5008bafbabcd0e88bc0a83a5e8d233f1e03457a16c8f63e4646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bb3002c981ff5008bafbabcd0e88bc0a83a5e8d233f1e03457a16c8f63e4646", kill_on_drop: false }`
[INFO] [stdout] 0bb3002c981ff5008bafbabcd0e88bc0a83a5e8d233f1e03457a16c8f63e4646
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] efc56916a86af84a0efa99372a2718cf6d69073da282cc5bcc686e2feb1b2940
[INFO] running `Command { std: "docker" "start" "-a" "efc56916a86af84a0efa99372a2718cf6d69073da282cc5bcc686e2feb1b2940", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking arraytools v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking ghakuf v0.5.5
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking ron v0.6.0
[INFO] [stderr]     Checking elektron-sequencer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1081:14
[INFO] [stdout]      |
[INFO] [stdout] 1081 |             .map(move |(i, channel)| channel.events_between(i as u8, start, end));
[INFO] [stdout]      |              ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]      = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `arraytools::ArrayTools::map(...)` to keep using the current method
[INFO] [stdout]      = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1083:58
[INFO] [stdout]      |
[INFO] [stdout] 1083 |         let mut messages = inner_messages.as_mut_array().map(|iter| iter.next());
[INFO] [stdout]      |                                                          ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `arraytools::ArrayTools::map(...)` to keep using the current method
[INFO] [stdout]      = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1081:14
[INFO] [stdout]      |
[INFO] [stdout] 1081 |             .map(move |(i, channel)| channel.events_between(i as u8, start, end));
[INFO] [stdout]      |              ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]      = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `arraytools::ArrayTools::map(...)` to keep using the current method
[INFO] [stdout]      = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]     --> src/main.rs:1083:58
[INFO] [stdout]      |
[INFO] [stdout] 1083 |         let mut messages = inner_messages.as_mut_array().map(|iter| iter.next());
[INFO] [stdout]      |                                                          ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]      = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]      = help: call with fully qualified syntax `arraytools::ArrayTools::map(...)` to keep using the current method
[INFO] [stdout]      = help: add `#![feature(array_map)]` to the crate attributes to enable `array::<impl [T; N]>::map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.98s
[INFO] running `Command { std: "docker" "inspect" "efc56916a86af84a0efa99372a2718cf6d69073da282cc5bcc686e2feb1b2940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efc56916a86af84a0efa99372a2718cf6d69073da282cc5bcc686e2feb1b2940", kill_on_drop: false }`
[INFO] [stdout] efc56916a86af84a0efa99372a2718cf6d69073da282cc5bcc686e2feb1b2940