[INFO] cloning repository https://github.com/coniferprod/sevenator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/coniferprod/sevenator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconiferprod%2Fsevenator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconiferprod%2Fsevenator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a74bba9836b3851f01da2dc7aae198188524c03
[INFO] checking coniferprod/sevenator against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconiferprod%2Fsevenator" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/coniferprod/sevenator on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/coniferprod/sevenator
[INFO] finished tweaking git repo https://github.com/coniferprod/sevenator
[INFO] tweaked toml for git repo https://github.com/coniferprod/sevenator written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/coniferprod/sevenator 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bit v0.1.1
[INFO] [stderr]   Downloaded rustix v0.37.11
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.1
[INFO] [stderr]   Downloaded syxpack v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 535bf61ab91d82941798a8b2add6cdb255217b871dc5dd3b9f298450b2a1f25e
[INFO] running `Command { std: "docker" "start" "-a" "535bf61ab91d82941798a8b2add6cdb255217b871dc5dd3b9f298450b2a1f25e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "535bf61ab91d82941798a8b2add6cdb255217b871dc5dd3b9f298450b2a1f25e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "535bf61ab91d82941798a8b2add6cdb255217b871dc5dd3b9f298450b2a1f25e", kill_on_drop: false }`
[INFO] [stdout] 535bf61ab91d82941798a8b2add6cdb255217b871dc5dd3b9f298450b2a1f25e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18d77720c0dcceb9bb0c20f2e712dee8995e0e5072db00185facfdbf091bfe90
[INFO] running `Command { std: "docker" "start" "-a" "18d77720c0dcceb9bb0c20f2e712dee8995e0e5072db00185facfdbf091bfe90", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling rustix v0.37.11
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking linux-raw-sys v0.3.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking bit v0.1.1
[INFO] [stderr]     Checking syxpack v0.9.0
[INFO] [stderr]     Checking regex v1.7.3
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking is-terminal v0.4.7
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking sevenator v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Unsigned`
[INFO] [stdout]  --> src/dx7.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | use num::{self, Unsigned};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]  --> src/dx7.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use num::{self, Unsigned};
[INFO] [stdout]   |           ^^^^ the item `num` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Unsigned`
[INFO] [stdout]  --> src/dx7.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | use num::{self, Unsigned};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num` is imported redundantly
[INFO] [stdout]  --> src/dx7.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use num::{self, Unsigned};
[INFO] [stdout]   |           ^^^^ the item `num` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/dx7.rs:584:9
[INFO] [stdout]     |
[INFO] [stdout] 584 |     for i in 0..VOICE_COUNT {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_brass1` is never used
[INFO] [stdout]    --> src/dx7.rs:307:4
[INFO] [stdout]     |
[INFO] [stdout] 307 | fn make_brass1() -> Voice {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/dx7.rs:711:8
[INFO] [stdout]     |
[INFO] [stdout] 711 | pub fn run() -> std::io::Result<()> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `adsr` is never used
[INFO] [stdout]    --> src/dx7.rs:804:12
[INFO] [stdout]     |
[INFO] [stdout] 781 | impl Envelope {
[INFO] [stdout]     | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 804 |     pub fn adsr(attack: Rate, decay: Rate, sustain: Level, release: Rate) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `op_flags` is never read
[INFO] [stdout]     --> src/dx7.rs:1370:9
[INFO] [stdout]      |
[INFO] [stdout] 1361 | pub struct Voice {
[INFO] [stdout]      |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1370 |     pub op_flags: [bool; 6],
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `Voice` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/dx7.rs:584:9
[INFO] [stdout]     |
[INFO] [stdout] 584 |     for i in 0..VOICE_COUNT {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/dx7.rs:711:8
[INFO] [stdout]     |
[INFO] [stdout] 711 | pub fn run() -> std::io::Result<()> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `adsr` is never used
[INFO] [stdout]    --> src/dx7.rs:804:12
[INFO] [stdout]     |
[INFO] [stdout] 781 | impl Envelope {
[INFO] [stdout]     | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 804 |     pub fn adsr(attack: Rate, decay: Rate, sustain: Level, release: Rate) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `op_flags` is never read
[INFO] [stdout]     --> src/dx7.rs:1370:9
[INFO] [stdout]      |
[INFO] [stdout] 1361 | pub struct Voice {
[INFO] [stdout]      |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1370 |     pub op_flags: [bool; 6],
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `Voice` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.15s
[INFO] running `Command { std: "docker" "inspect" "18d77720c0dcceb9bb0c20f2e712dee8995e0e5072db00185facfdbf091bfe90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18d77720c0dcceb9bb0c20f2e712dee8995e0e5072db00185facfdbf091bfe90", kill_on_drop: false }`
[INFO] [stdout] 18d77720c0dcceb9bb0c20f2e712dee8995e0e5072db00185facfdbf091bfe90