[INFO] cloning repository https://github.com/semtexzv/rafka
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/semtexzv/rafka" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemtexzv%2Frafka", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemtexzv%2Frafka'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c93a9cb3646824605b62b382ef05770f39235fe4
[INFO] checking semtexzv/rafka against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemtexzv%2Frafka" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/semtexzv/rafka on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/semtexzv/rafka
[INFO] finished tweaking git repo https://github.com/semtexzv/rafka
[INFO] tweaked toml for git repo https://github.com/semtexzv/rafka written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/semtexzv/rafka 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-timeout v0.3.0
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[INFO] [stderr]   Downloaded proc-macro2 v1.0.23
[INFO] [stderr]   Downloaded cc v1.0.60
[INFO] [stderr]   Downloaded syn v1.0.42
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[INFO] [stderr]   Downloaded tower-limit v0.3.1
[INFO] [stderr]   Downloaded libc v0.2.77
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[INFO] [stderr]   Downloaded pin-project-internal v0.4.24
[INFO] [stderr]   Downloaded pin-project-lite v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94f316252d6952845876acd4f067287c1e4c5eda9ca53e7ed57d086de91bccb9
[INFO] running `Command { std: "docker" "start" "-a" "94f316252d6952845876acd4f067287c1e4c5eda9ca53e7ed57d086de91bccb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94f316252d6952845876acd4f067287c1e4c5eda9ca53e7ed57d086de91bccb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94f316252d6952845876acd4f067287c1e4c5eda9ca53e7ed57d086de91bccb9", kill_on_drop: false }`
[INFO] [stdout] 94f316252d6952845876acd4f067287c1e4c5eda9ca53e7ed57d086de91bccb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c887d0db1d859311d85b55a7a3ec9668c00ab76bdddf6e61a69d706be9c4180d
[INFO] running `Command { std: "docker" "start" "-a" "c887d0db1d859311d85b55a7a3ec9668c00ab76bdddf6e61a69d706be9c4180d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.24
[INFO] [stderr]     Checking pin-project-lite v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]     Checking tower-layer v0.3.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking tracing-core v0.1.16
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
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[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking darling_core v0.10.2
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking pin-project v0.4.24
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tower-discover v0.3.0
[INFO] [stderr]     Checking tower-load-shed v0.3.0
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]     Checking rafka_codegen v0.0.0 (/opt/rustwide/workdir/codegen)
[INFO] [stdout] warning: fields `name`, `since`, `until`, and `default` are never read
[INFO] [stdout]   --> codegen/src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Wrapper {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 14 |     #[darling(default)]
[INFO] [stdout] 15 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     #[darling(default)]
[INFO] [stdout] 17 |     since: Option<usize>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     #[darling(default)]
[INFO] [stdout] 19 |     until: Option<usize>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     #[darling(default)]
[INFO] [stdout] 21 |     default: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Wrapper` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tag_since` and `tags` are never read
[INFO] [stdout]   --> codegen/src/lib.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct FieldArgs {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     tag_since: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     tags: bool,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `since`, `until`, and `default` are never read
[INFO] [stdout]   --> codegen/src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Wrapper {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 14 |     #[darling(default)]
[INFO] [stdout] 15 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     #[darling(default)]
[INFO] [stdout] 17 |     since: Option<usize>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     #[darling(default)]
[INFO] [stdout] 19 |     until: Option<usize>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     #[darling(default)]
[INFO] [stdout] 21 |     default: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Wrapper` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tag_since` and `tags` are never read
[INFO] [stdout]   --> codegen/src/lib.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct FieldArgs {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     tag_since: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     tags: bool,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `since`, `until`, and `default` are never read
[INFO] [stdout]   --> codegen/src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Wrapper {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 14 |     #[darling(default)]
[INFO] [stdout] 15 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     #[darling(default)]
[INFO] [stdout] 17 |     since: Option<usize>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     #[darling(default)]
[INFO] [stdout] 19 |     until: Option<usize>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     #[darling(default)]
[INFO] [stdout] 21 |     default: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Wrapper` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tag_since` and `tags` are never read
[INFO] [stdout]   --> codegen/src/lib.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct FieldArgs {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     tag_since: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     tags: bool,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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]     Checking tower-load v0.3.0
[INFO] [stderr]     Checking tower-buffer v0.3.0
[INFO] [stderr]     Checking tower-retry v0.3.0
[INFO] [stderr]     Checking tower-timeout v0.3.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-rustls v0.14.1
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking tower-util v0.3.1
[INFO] [stderr]     Checking tower-limit v0.3.1
[INFO] [stderr]     Checking tokio-tower v0.4.0
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking tower v0.3.1
[INFO] [stderr]     Checking rafka v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(min_const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(min_const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.18s
[INFO] running `Command { std: "docker" "inspect" "c887d0db1d859311d85b55a7a3ec9668c00ab76bdddf6e61a69d706be9c4180d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c887d0db1d859311d85b55a7a3ec9668c00ab76bdddf6e61a69d706be9c4180d", kill_on_drop: false }`
[INFO] [stdout] c887d0db1d859311d85b55a7a3ec9668c00ab76bdddf6e61a69d706be9c4180d