[INFO] cloning repository https://github.com/raphaelSeguin/collatzillator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raphaelSeguin/collatzillator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FraphaelSeguin%2Fcollatzillator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FraphaelSeguin%2Fcollatzillator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8670c510c8874f9d71730cc7532900b8446a26e8
[INFO] checking raphaelSeguin/collatzillator against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FraphaelSeguin%2Fcollatzillator" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/raphaelSeguin/collatzillator 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/raphaelSeguin/collatzillator
[INFO] finished tweaking git repo https://github.com/raphaelSeguin/collatzillator
[INFO] tweaked toml for git repo https://github.com/raphaelSeguin/collatzillator written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/raphaelSeguin/collatzillator 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7a98bf730f7deeaf431414d6730570ff89860a4477935d664ac4556d8036c59a
[INFO] running `Command { std: "docker" "start" "-a" "7a98bf730f7deeaf431414d6730570ff89860a4477935d664ac4556d8036c59a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a98bf730f7deeaf431414d6730570ff89860a4477935d664ac4556d8036c59a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a98bf730f7deeaf431414d6730570ff89860a4477935d664ac4556d8036c59a", kill_on_drop: false }`
[INFO] [stdout] 7a98bf730f7deeaf431414d6730570ff89860a4477935d664ac4556d8036c59a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] aab8677c8ef91365fc98634856eae3b02f4427c878a22998421e143eab4824cb
[INFO] running `Command { std: "docker" "start" "-a" "aab8677c8ef91365fc98634856eae3b02f4427c878a22998421e143eab4824cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling cpal v0.13.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking riff v1.0.1
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]     Checking hound v3.5.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking wav v1.0.0
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.34
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]     Checking alsa v0.6.0
[INFO] [stderr]     Checking thiserror v1.0.34
[INFO] [stderr]     Checking minimp3 v0.5.1
[INFO] [stderr]     Checking clap v3.2.20
[INFO] [stderr]     Checking rodio v0.15.0
[INFO] [stderr]     Checking collatzillator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `wav` is imported redundantly
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use wav;
[INFO] [stdout]   |     ^^^ the item `wav` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `wav` is imported redundantly
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use wav;
[INFO] [stdout]   |     ^^^ the item `wav` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `interpolation` is never read
[INFO] [stdout]   --> src/collatz.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Collatz {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub interpolation: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `interpolation` is never read
[INFO] [stdout]   --> src/collatz.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Collatz {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub interpolation: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[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` profile [unoptimized + debuginfo] target(s) in 14.13s
[INFO] running `Command { std: "docker" "inspect" "aab8677c8ef91365fc98634856eae3b02f4427c878a22998421e143eab4824cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aab8677c8ef91365fc98634856eae3b02f4427c878a22998421e143eab4824cb", kill_on_drop: false }`
[INFO] [stdout] aab8677c8ef91365fc98634856eae3b02f4427c878a22998421e143eab4824cb
[INFO] checking raphaelSeguin/collatzillator against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FraphaelSeguin%2Fcollatzillator" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/raphaelSeguin/collatzillator on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/raphaelSeguin/collatzillator
[INFO] finished tweaking git repo https://github.com/raphaelSeguin/collatzillator
[INFO] tweaked toml for git repo https://github.com/raphaelSeguin/collatzillator written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/raphaelSeguin/collatzillator 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab5c92d74a7e5102a0a2795c9c38dcbaffa4ecbb39562a01a8a781efccbbcfd2
[INFO] running `Command { std: "docker" "start" "-a" "ab5c92d74a7e5102a0a2795c9c38dcbaffa4ecbb39562a01a8a781efccbbcfd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab5c92d74a7e5102a0a2795c9c38dcbaffa4ecbb39562a01a8a781efccbbcfd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab5c92d74a7e5102a0a2795c9c38dcbaffa4ecbb39562a01a8a781efccbbcfd2", kill_on_drop: false }`
[INFO] [stdout] ab5c92d74a7e5102a0a2795c9c38dcbaffa4ecbb39562a01a8a781efccbbcfd2
[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" "-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3ea8cf23361009a43a6ce81f8ca1bc0c8224bbadf97744c1c7c12cb3a225155
[INFO] running `Command { std: "docker" "start" "-a" "a3ea8cf23361009a43a6ce81f8ca1bc0c8224bbadf97744c1c7c12cb3a225155", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[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 memoffset v0.6.5
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling cpal v0.13.5
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]     Checking riff v1.0.1
[INFO] [stderr]     Checking hound v3.5.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]     Checking wav v1.0.0
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.34
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]     Checking alsa v0.6.0
[INFO] [stderr]     Checking thiserror v1.0.34
[INFO] [stderr]     Checking minimp3 v0.5.1
[INFO] [stderr]     Checking clap v3.2.20
[INFO] [stderr]     Checking rodio v0.15.0
[INFO] [stderr]     Checking collatzillator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `wav` is imported redundantly
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use wav;
[INFO] [stdout]   |     ^^^ the item `wav` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `wav` is imported redundantly
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use wav;
[INFO] [stdout]   |     ^^^ the item `wav` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `interpolation` is never read
[INFO] [stdout]   --> src/collatz.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Collatz {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub interpolation: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `interpolation` is never read
[INFO] [stdout]   --> src/collatz.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Collatz {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub interpolation: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.02s
[INFO] running `Command { std: "docker" "inspect" "a3ea8cf23361009a43a6ce81f8ca1bc0c8224bbadf97744c1c7c12cb3a225155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3ea8cf23361009a43a6ce81f8ca1bc0c8224bbadf97744c1c7c12cb3a225155", kill_on_drop: false }`
[INFO] [stdout] a3ea8cf23361009a43a6ce81f8ca1bc0c8224bbadf97744c1c7c12cb3a225155