[INFO] cloning repository https://github.com/gsson/mini-web-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gsson/mini-web-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgsson%2Fmini-web-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgsson%2Fmini-web-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 978e4fdacee93e5ff85e15c002066e5bace54973
[INFO] testing gsson/mini-web-rs against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgsson%2Fmini-web-rs" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gsson/mini-web-rs on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gsson/mini-web-rs
[INFO] finished tweaking git repo https://github.com/gsson/mini-web-rs
[INFO] tweaked toml for git repo https://github.com/gsson/mini-web-rs written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/gsson/mini-web-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded axum v0.3.1
[INFO] [stderr]   Downloaded protobuf v2.25.2
[INFO] [stderr]   Downloaded tower v0.4.10
[INFO] [stderr]   Downloaded opentelemetry-prometheus v0.9.0
[INFO] [stderr]   Downloaded serde_json v1.0.69
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 493adc29b5bf147d1038a43d6bf031764ff5a21eb9773d47fee0efba572abdea
[INFO] running `Command { std: "docker" "start" "-a" "493adc29b5bf147d1038a43d6bf031764ff5a21eb9773d47fee0efba572abdea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "493adc29b5bf147d1038a43d6bf031764ff5a21eb9773d47fee0efba572abdea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "493adc29b5bf147d1038a43d6bf031764ff5a21eb9773d47fee0efba572abdea", kill_on_drop: false }`
[INFO] [stdout] 493adc29b5bf147d1038a43d6bf031764ff5a21eb9773d47fee0efba572abdea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] 6565c89288c78e56d077110f389c0c05f65f871f7d1d5d93a00778267e8c7248
[INFO] running `Command { std: "docker" "start" "-a" "6565c89288c78e56d077110f389c0c05f65f871f7d1d5d93a00778267e8c7248", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling protobuf v2.25.2
[INFO] [stderr]    Compiling serde_json v1.0.69
[INFO] [stderr]    Compiling prometheus v0.12.0
[INFO] [stderr]    Compiling anyhow v1.0.45
[INFO] [stderr]    Compiling matchit v0.4.4
[INFO] [stderr]    Compiling sync_wrapper v0.1.1
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling tokio v1.13.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling dashmap v4.0.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling tracing-subscriber v0.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling tower-http v0.1.1
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling opentelemetry v0.16.0
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling tower v0.4.10
[INFO] [stderr]    Compiling hyper v0.14.14
[INFO] [stderr]    Compiling opentelemetry-prometheus v0.9.0
[INFO] [stderr]    Compiling tracing-opentelemetry v0.16.0
[INFO] [stderr]    Compiling axum v0.3.1
[INFO] [stderr]    Compiling mini-web v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `record_separator`
[INFO] [stdout]   --> src/json_logging/mod.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn record_separator(self, separator: impl Into<Vec<u8>>) -> Layer<S, E, W> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `event_format`
[INFO] [stdout]   --> src/json_logging/mod.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn event_format<E2>(self, event_format: E2) -> Layer<S, E2, W>
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_writer`
[INFO] [stdout]   --> src/json_logging/mod.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn with_writer<W2>(self, make_writer: W2) -> Layer<S, E, W2>
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Off`
[INFO] [stdout]    --> src/json_logging/mod.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     Off,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `DisplayLevelFilter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/json_logging/mod.rs:111:16
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[derive(Copy, Clone)]
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `All`
[INFO] [stdout]    --> src/json_logging/mod.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     All,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `DisplayLevelFilter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/json_logging/mod.rs:111:16
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[derive(Copy, Clone)]
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Level`
[INFO] [stdout]    --> src/json_logging/mod.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     Level(Level),
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `DisplayLevelFilter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/json_logging/mod.rs:111:16
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[derive(Copy, Clone)]
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Event`
[INFO] [stdout]    --> src/json_logging/mod.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     Event,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `DisplayLevelFilter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/json_logging/mod.rs:111:16
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[derive(Copy, Clone)]
[INFO] [stdout]     |                ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `ERROR`
[INFO] [stdout]    --> src/json_logging/mod.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub const ERROR: DisplayLevelFilter = Self::from_level(Level::ERROR);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `WARN`
[INFO] [stdout]    --> src/json_logging/mod.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub const WARN: DisplayLevelFilter = Self::from_level(Level::WARN);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `INFO`
[INFO] [stdout]    --> src/json_logging/mod.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub const INFO: DisplayLevelFilter = Self::from_level(Level::INFO);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `DEBUG`
[INFO] [stdout]    --> src/json_logging/mod.rs:123:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub const DEBUG: DisplayLevelFilter = Self::from_level(Level::DEBUG);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `TRACE`
[INFO] [stdout]    --> src/json_logging/mod.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub const TRACE: DisplayLevelFilter = Self::from_level(Level::TRACE);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_level`
[INFO] [stdout]    --> src/json_logging/mod.rs:127:14
[INFO] [stdout]     |
[INFO] [stdout] 127 |     const fn from_level(level: Level) -> DisplayLevelFilter {
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_location`
[INFO] [stdout]   --> src/json_logging/format.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn with_location(self, display_location: bool) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_fields`
[INFO] [stdout]   --> src/json_logging/format.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn with_fields(self, display_fields: bool) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_timestamp`
[INFO] [stdout]   --> src/json_logging/logstash.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn with_timestamp(self, display_timestamp: bool) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_version`
[INFO] [stdout]   --> src/json_logging/logstash.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn with_version(self, display_version: bool) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_logger_name`
[INFO] [stdout]   --> src/json_logging/logstash.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn with_logger_name(self, display_logger_name: bool) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_thread_name`
[INFO] [stdout]   --> src/json_logging/logstash.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn with_thread_name(self, display_thread_name: bool) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_level`
[INFO] [stdout]   --> src/json_logging/logstash.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn with_level(self, display_level: bool) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_level_value`
[INFO] [stdout]   --> src/json_logging/logstash.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn with_level_value(self, display_level_value: bool) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_span_list`
[INFO] [stdout]   --> src/json_logging/logstash.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn with_span_list(self, display_span_list: Option<DisplayLevelFilter>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_stack_trace`
[INFO] [stdout]   --> src/json_logging/logstash.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn with_stack_trace(self, display_stack_trace: Option<DisplayLevelFilter>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span_format`
[INFO] [stdout]   --> src/json_logging/logstash.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn span_format<FS2>(self, span_format: FS2) -> LogstashFormat<FS2> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(poll_ready)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mini-web` due to 2 previous errors; 24 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6565c89288c78e56d077110f389c0c05f65f871f7d1d5d93a00778267e8c7248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6565c89288c78e56d077110f389c0c05f65f871f7d1d5d93a00778267e8c7248", kill_on_drop: false }`
[INFO] [stdout] 6565c89288c78e56d077110f389c0c05f65f871f7d1d5d93a00778267e8c7248