[INFO] fetching crate treescript-interpreter 0.1.1...
[INFO] testing treescript-interpreter-0.1.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate treescript-interpreter 0.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate treescript-interpreter 0.1.1 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 treescript-interpreter 0.1.1
[INFO] finished tweaking crates.io crate treescript-interpreter 0.1.1
[INFO] tweaked toml for crates.io crate treescript-interpreter 0.1.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode_reader v0.1.1
[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] e29152b9a49f132b41664092f1902cf0f053d4d1e9584ebf57e2968d1a6473f8
[INFO] running `Command { std: "docker" "start" "-a" "e29152b9a49f132b41664092f1902cf0f053d4d1e9584ebf57e2968d1a6473f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e29152b9a49f132b41664092f1902cf0f053d4d1e9584ebf57e2968d1a6473f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e29152b9a49f132b41664092f1902cf0f053d4d1e9584ebf57e2968d1a6473f8", kill_on_drop: false }`
[INFO] [stdout] e29152b9a49f132b41664092f1902cf0f053d4d1e9584ebf57e2968d1a6473f8
[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] 6caf537c665251067f90c1f5ffbfc91dddfd1152d779e116c36d2ed682ac8ebb
[INFO] running `Command { std: "docker" "start" "-a" "6caf537c665251067f90c1f5ffbfc91dddfd1152d779e116c36d2ed682ac8ebb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling array-macro v1.0.5
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling enum-map-internals v0.1.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling rmp v0.8.12
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling xdg v2.5.2
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode_reader v0.1.1
[INFO] [stderr]    Compiling app_dirs v1.2.1
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling tempfile v3.9.0
[INFO] [stderr]    Compiling enum-map-derive v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling serde_repr v0.1.18
[INFO] [stderr]    Compiling enum-map v0.5.0
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling rmp-serde v0.13.7
[INFO] [stderr]    Compiling treescript-interpreter v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(refcell_map_split, generators, generator_trait)]
[INFO] [stdout]   |                               ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::ops::Generator`, `std::ops::GeneratorState`
[INFO] [stdout]  --> src/util.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::{Generator, GeneratorState};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^^^^^^ no `GeneratorState` in `ops`
[INFO] [stdout]   |                |
[INFO] [stdout]   |                no `Generator` in `ops`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::ops::Generator`
[INFO] [stdout]  --> src/value.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Generator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ no `Generator` in `ops`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]    --> src/value.rs:266:17
[INFO] [stdout]     |
[INFO] [stdout] 266 |                 yield top_prop;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]    --> src/value.rs:302:17
[INFO] [stdout]     |
[INFO] [stdout] 302 |                 yield top_prop;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(refcell_map_split, generators, generator_trait)]
[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:1:43
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(refcell_map_split, generators, generator_trait)]
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `refcell_map_split` has been stable since 1.35.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(refcell_map_split, generators, generator_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `generator_trait`
[INFO] [stdout]  --> src/lib.rs:1:43
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(refcell_map_split, generators, generator_trait)]
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:214:64
[INFO] [stdout]     |
[INFO] [stdout] 214 |   pub fn read_ast<P: AsRef<Path>>(&self, input_path: P) -> Box<Read> {
[INFO] [stdout]     |                                                                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 214 |   pub fn read_ast<P: AsRef<Path>>(&self, input_path: P) -> Box<dyn Read> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:233:57
[INFO] [stdout]     |
[INFO] [stdout] 233 |   pub fn write_ast(&self, output_path: PathBuf) -> (Box<Write>, AtomicFileCommit) {
[INFO] [stdout]     |                                                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 233 |   pub fn write_ast(&self, output_path: PathBuf) -> (Box<dyn Write>, AtomicFileCommit) {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0557, E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `treescript-interpreter` (lib) due to 9 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6caf537c665251067f90c1f5ffbfc91dddfd1152d779e116c36d2ed682ac8ebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6caf537c665251067f90c1f5ffbfc91dddfd1152d779e116c36d2ed682ac8ebb", kill_on_drop: false }`
[INFO] [stdout] 6caf537c665251067f90c1f5ffbfc91dddfd1152d779e116c36d2ed682ac8ebb
[INFO] testing treescript-interpreter-0.1.1 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate treescript-interpreter 0.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate treescript-interpreter 0.1.1 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 treescript-interpreter 0.1.1
[INFO] finished tweaking crates.io crate treescript-interpreter 0.1.1
[INFO] tweaked toml for crates.io crate treescript-interpreter 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] a5fc880e6e2a2f0cab0c6bd1bf5424248e598ecd30837aa5c66e12f72efdeabb
[INFO] running `Command { std: "docker" "start" "-a" "a5fc880e6e2a2f0cab0c6bd1bf5424248e598ecd30837aa5c66e12f72efdeabb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5fc880e6e2a2f0cab0c6bd1bf5424248e598ecd30837aa5c66e12f72efdeabb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5fc880e6e2a2f0cab0c6bd1bf5424248e598ecd30837aa5c66e12f72efdeabb", kill_on_drop: false }`
[INFO] [stdout] a5fc880e6e2a2f0cab0c6bd1bf5424248e598ecd30837aa5c66e12f72efdeabb
[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] 6099f9d85e6953149fcb71f34ef08e0d511ffd4f1c4c4ba813c6c0ba74807b1b
[INFO] running `Command { std: "docker" "start" "-a" "6099f9d85e6953149fcb71f34ef08e0d511ffd4f1c4c4ba813c6c0ba74807b1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling array-macro v1.0.5
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling enum-map-internals v0.1.2
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling xdg v2.5.2
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling rmp v0.8.12
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling app_dirs v1.2.1
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling unicode_reader v0.1.1
[INFO] [stderr]    Compiling enum-map-derive v0.4.6
[INFO] [stderr]    Compiling tempfile v3.9.0
[INFO] [stderr]    Compiling enum-map v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling serde_repr v0.1.18
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling rmp-serde v0.13.7
[INFO] [stderr]    Compiling treescript-interpreter v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(refcell_map_split, generators, generator_trait)]
[INFO] [stdout]   |                               ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::ops::Generator`, `std::ops::GeneratorState`
[INFO] [stdout]  --> src/util.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::{Generator, GeneratorState};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^^^^^^ no `GeneratorState` in `ops`
[INFO] [stdout]   |                |
[INFO] [stdout]   |                no `Generator` in `ops`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::ops::Generator`
[INFO] [stdout]  --> src/value.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::ops::Generator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ no `Generator` in `ops`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]    --> src/value.rs:266:17
[INFO] [stdout]     |
[INFO] [stdout] 266 |                 yield top_prop;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]    --> src/value.rs:302:17
[INFO] [stdout]     |
[INFO] [stdout] 302 |                 yield top_prop;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(refcell_map_split, generators, generator_trait)]
[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:1:43
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(refcell_map_split, generators, generator_trait)]
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `refcell_map_split` has been stable since 1.35.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(refcell_map_split, generators, generator_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `generator_trait`
[INFO] [stdout]  --> src/lib.rs:1:43
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(refcell_map_split, generators, generator_trait)]
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:214:64
[INFO] [stdout]     |
[INFO] [stdout] 214 |   pub fn read_ast<P: AsRef<Path>>(&self, input_path: P) -> Box<Read> {
[INFO] [stdout]     |                                                                ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 214 |   pub fn read_ast<P: AsRef<Path>>(&self, input_path: P) -> Box<dyn Read> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:233:57
[INFO] [stdout]     |
[INFO] [stdout] 233 |   pub fn write_ast(&self, output_path: PathBuf) -> (Box<Write>, AtomicFileCommit) {
[INFO] [stdout]     |                                                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 233 |   pub fn write_ast(&self, output_path: PathBuf) -> (Box<dyn Write>, AtomicFileCommit) {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0557, E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `treescript-interpreter` (lib) due to 9 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6099f9d85e6953149fcb71f34ef08e0d511ffd4f1c4c4ba813c6c0ba74807b1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6099f9d85e6953149fcb71f34ef08e0d511ffd4f1c4c4ba813c6c0ba74807b1b", kill_on_drop: false }`
[INFO] [stdout] 6099f9d85e6953149fcb71f34ef08e0d511ffd4f1c4c4ba813c6c0ba74807b1b
