[INFO] fetching crate rtz 0.5.3...
[INFO] testing rtz-0.5.3 against 1.75.0 for beta-1.76-1
[INFO] extracting crate rtz 0.5.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate rtz 0.5.3 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rtz 0.5.3
[INFO] finished tweaking crates.io crate rtz 0.5.3
[INFO] tweaked toml for crates.io crate rtz 0.5.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate rtz 0.5.3 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.19
[INFO] [stderr]   Downloaded rstar v0.11.0
[INFO] [stderr]   Downloaded okapi v0.7.0-rc.1
[INFO] [stderr]   Downloaded rocket_okapi_codegen v0.8.0-rc.3
[INFO] [stderr]   Downloaded serde_json v1.0.103
[INFO] [stderr]   Downloaded geo-types v0.7.11
[INFO] [stderr]   Downloaded robust v1.1.0
[INFO] [stderr]   Downloaded earcutr v0.4.2
[INFO] [stderr]   Downloaded geo v0.26.0
[INFO] [stderr]   Downloaded geojson v0.24.1
[INFO] [stderr]   Downloaded clap_builder v4.3.17
[INFO] [stderr]   Downloaded rocket_okapi v0.8.0-rc.3
[INFO] [stderr]   Downloaded winnow v0.5.0
[INFO] [stderr]   Downloaded ref-cast v1.0.19
[INFO] [stderr]   Downloaded clap v4.3.17
[INFO] [stderr]   Downloaded rtz-build v0.2.6
[INFO] [stderr]   Downloaded unicase_serde v0.1.0
[INFO] [stderr]   Downloaded rtz-core v0.1.4
[INFO] [stderr]   Downloaded dyn-clone v1.0.12
[INFO] [stderr]   Downloaded pest_meta v2.7.1
[INFO] [stderr]   Downloaded pest_generator v2.7.1
[INFO] [stderr]   Downloaded pest_derive v2.7.1
[INFO] [stderr]   Downloaded geographiclib-rs v0.2.3
[INFO] [stderr]   Downloaded figment v0.10.10
[INFO] [stderr]   Downloaded yansi v1.0.0-rc
[INFO] [stderr]   Downloaded rocket_cors v0.6.0-alpha2
[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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d85133c8abfb794e3814c6e9bd4dc5b44fc7cb9bbcf8bacd0d52f49c6b2bca2
[INFO] running `Command { std: "docker" "start" "-a" "0d85133c8abfb794e3814c6e9bd4dc5b44fc7cb9bbcf8bacd0d52f49c6b2bca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d85133c8abfb794e3814c6e9bd4dc5b44fc7cb9bbcf8bacd0d52f49c6b2bca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d85133c8abfb794e3814c6e9bd4dc5b44fc7cb9bbcf8bacd0d52f49c6b2bca2", kill_on_drop: false }`
[INFO] [stdout] 0d85133c8abfb794e3814c6e9bd4dc5b44fc7cb9bbcf8bacd0d52f49c6b2bca2
[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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92927734232d65ce66e610b1463a1b1b352a3169d347f1ccbef031df85f471f2
[INFO] running `Command { std: "docker" "start" "-a" "92927734232d65ce66e610b1463a1b1b352a3169d347f1ccbef031df85f471f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
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[INFO] [stderr]    Compiling unicode-normalization v0.1.22
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[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling inout v0.1.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling base64ct v1.6.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling gimli v0.27.3
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling tokio-util v0.7.8
[INFO] [stderr]    Compiling thiserror v1.0.43
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling serde_json v1.0.103
[INFO] [stderr]    Compiling h2 v0.3.20
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling password-hash v0.4.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.43
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling addr2line v0.20.0
[INFO] [stderr]    Compiling sha2 v0.10.7
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling object v0.31.1
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling geographiclib-rs v0.2.3
[INFO] [stderr]    Compiling time v0.3.23
[INFO] [stderr]    Compiling earcutr v0.4.2
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling pbkdf2 v0.11.0
[INFO] [stderr]    Compiling hyper v0.14.27
[INFO] [stderr]    Compiling flate2 v1.0.26
[INFO] [stderr]    Compiling aes v0.8.3
[INFO] [stderr]    Compiling url v2.4.0
[INFO] [stderr]    Compiling sha1 v0.10.5
[INFO] [stderr]    Compiling encoding_rs v0.8.32
[INFO] [stderr]    Compiling float_next_after v1.0.0
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling robust v1.1.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.3
[INFO] [stderr]    Compiling bitflags v2.3.3
[INFO] [stderr]    Compiling base64 v0.21.2
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling ipnet v2.8.0
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling chashmap v2.2.2
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling anstyle v1.0.1
[INFO] [stderr]    Compiling async-trait v0.1.71
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling geo-types v0.7.11
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling geo v0.26.0
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]    Compiling reqwest v0.11.18
[INFO] [stderr]    Compiling anstream v0.3.2
[INFO] [stderr]    Compiling clap_lex v0.5.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling clap_builder v4.3.17
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]    Compiling geojson v0.24.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling bincode v2.0.0-rc.3
[INFO] [stderr]    Compiling clap v4.3.17
[INFO] [stderr]    Compiling bzip2 v0.4.4
[INFO] [stderr]    Compiling zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]    Compiling zip v0.6.6
[INFO] [stderr]    Compiling rtz-core v0.1.4
[INFO] [stderr]    Compiling rtz-build v0.2.6
[INFO] [stderr]    Compiling rtz v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![feature(async_closure)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | #![feature(test)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | #![feature(string_remove_matches)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | #![feature(fs_try_exists)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | #![feature(once_cell)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stdout]  --> src/shared.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | #![feature(test)]
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | #![feature(string_remove_matches)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | #![feature(fs_try_exists)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | #![feature(once_cell)]
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning 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 `rtz` (lib) due to 10 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "92927734232d65ce66e610b1463a1b1b352a3169d347f1ccbef031df85f471f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92927734232d65ce66e610b1463a1b1b352a3169d347f1ccbef031df85f471f2", kill_on_drop: false }`
[INFO] [stdout] 92927734232d65ce66e610b1463a1b1b352a3169d347f1ccbef031df85f471f2
[INFO] testing rtz-0.5.3 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate rtz 0.5.3 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate rtz 0.5.3 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rtz 0.5.3
[INFO] finished tweaking crates.io crate rtz 0.5.3
[INFO] tweaked toml for crates.io crate rtz 0.5.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate rtz 0.5.3 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fec6f214af493d6b4f11d855bf260022d555752996e852b3a57dd41abfb4af6
[INFO] running `Command { std: "docker" "start" "-a" "5fec6f214af493d6b4f11d855bf260022d555752996e852b3a57dd41abfb4af6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fec6f214af493d6b4f11d855bf260022d555752996e852b3a57dd41abfb4af6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fec6f214af493d6b4f11d855bf260022d555752996e852b3a57dd41abfb4af6", kill_on_drop: false }`
[INFO] [stdout] 5fec6f214af493d6b4f11d855bf260022d555752996e852b3a57dd41abfb4af6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2a8cdb0a24cf74ca27bdf649a2c299be70930cab0df08393569c66e835d635d
[INFO] running `Command { std: "docker" "start" "-a" "b2a8cdb0a24cf74ca27bdf649a2c299be70930cab0df08393569c66e835d635d", kill_on_drop: false }`
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[INFO] [stderr]    Compiling idna v0.4.0
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[INFO] [stderr]    Compiling geographiclib-rs v0.2.3
[INFO] [stderr]    Compiling pbkdf2 v0.11.0
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[INFO] [stderr]    Compiling geo-types v0.7.11
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling reqwest v0.11.18
[INFO] [stderr]    Compiling clap_lex v0.5.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling async-trait v0.1.71
[INFO] [stderr]    Compiling geo v0.26.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling geojson v0.24.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling bincode v2.0.0-rc.3
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]    Compiling anstream v0.3.2
[INFO] [stderr]    Compiling clap_builder v4.3.17
[INFO] [stderr]    Compiling bzip2 v0.4.4
[INFO] [stderr]    Compiling clap v4.3.17
[INFO] [stderr]    Compiling zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]    Compiling zip v0.6.6
[INFO] [stderr]    Compiling rtz-core v0.1.4
[INFO] [stderr]    Compiling rtz-build v0.2.6
[INFO] [stderr]    Compiling rtz v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![feature(async_closure)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | #![feature(test)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | #![feature(string_remove_matches)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | #![feature(fs_try_exists)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | #![feature(once_cell)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stdout]  --> src/shared.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | #![feature(test)]
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | #![feature(string_remove_matches)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | #![feature(fs_try_exists)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | #![feature(once_cell)]
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning 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 `rtz` (lib) due to 10 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b2a8cdb0a24cf74ca27bdf649a2c299be70930cab0df08393569c66e835d635d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2a8cdb0a24cf74ca27bdf649a2c299be70930cab0df08393569c66e835d635d", kill_on_drop: false }`
[INFO] [stdout] b2a8cdb0a24cf74ca27bdf649a2c299be70930cab0df08393569c66e835d635d
