[INFO] fetching crate nyar_valkyrie 0.0.8...
[INFO] testing nyar_valkyrie-0.0.8 against 1.69.0 for beta-1.70-1
[INFO] extracting crate nyar_valkyrie 0.0.8 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate nyar_valkyrie 0.0.8 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nyar_valkyrie 0.0.8
[INFO] finished tweaking crates.io crate nyar_valkyrie 0.0.8
[INFO] tweaked toml for crates.io crate nyar_valkyrie 0.0.8 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nyar_ast v0.0.8
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca9337f70bac76ab539c741eb9de530a57fe10e8553fb77bac839c0ec567f28a
[INFO] running `Command { std: "docker" "start" "-a" "ca9337f70bac76ab539c741eb9de530a57fe10e8553fb77bac839c0ec567f28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca9337f70bac76ab539c741eb9de530a57fe10e8553fb77bac839c0ec567f28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca9337f70bac76ab539c741eb9de530a57fe10e8553fb77bac839c0ec567f28a", kill_on_drop: false }`
[INFO] [stdout] ca9337f70bac76ab539c741eb9de530a57fe10e8553fb77bac839c0ec567f28a
[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=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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a657ba1bdd700f49ffa86f63b3d3182b6f05168f9844100c69385f9388a381d
[INFO] running `Command { std: "docker" "start" "-a" "6a657ba1bdd700f49ffa86f63b3d3182b6f05168f9844100c69385f9388a381d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling pest v2.6.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling nyar_ast v0.0.8
[INFO] [stderr]    Compiling nyar_valkyrie v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated enum `pest::prec_climber::Assoc`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 | use pest::prec_climber::{Assoc, Operator, PrecClimber};
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `pest::prec_climber::Operator`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:11:33
[INFO] [stdout]    |
[INFO] [stdout] 11 | use pest::prec_climber::{Assoc, Operator, PrecClimber};
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `pest::prec_climber::PrecClimber`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:11:43
[INFO] [stdout]    |
[INFO] [stdout] 11 | use pest::prec_climber::{Assoc, Operator, PrecClimber};
[INFO] [stdout]    |                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `pest::prec_climber::PrecClimber`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:28:30
[INFO] [stdout]    |
[INFO] [stdout] 28 |     static ref PREC_CLIMBER: PrecClimber<Rule> = {
[INFO] [stdout]    |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `pest::prec_climber::PrecClimber`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         PrecClimber::new(vec![
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `pest::prec_climber::Operator`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |             Operator::new(Set, Left),
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `pest::prec_climber::Assoc::Left`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:33:32
[INFO] [stdout]    |
[INFO] [stdout] 33 |             Operator::new(Set, Left),
[INFO] [stdout]    |                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `pest::prec_climber::Operator`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Operator::new(Plus, Left) | Operator::new(Minus, Left),
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `pest::prec_climber::Assoc::Left`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:34:33
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Operator::new(Plus, Left) | Operator::new(Minus, Left),
[INFO] [stdout]    |                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `pest::prec_climber::Operator`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:34:41
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Operator::new(Plus, Left) | Operator::new(Minus, Left),
[INFO] [stdout]    |                                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `pest::prec_climber::Assoc::Left`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:34:62
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Operator::new(Plus, Left) | Operator::new(Minus, Left),
[INFO] [stdout]    |                                                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `pest::prec_climber::Operator`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Operator::new(Multiply, Left) | Operator::new(CenterDot, Left),
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `pest::prec_climber::Assoc::Left`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:35:37
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Operator::new(Multiply, Left) | Operator::new(CenterDot, Left),
[INFO] [stdout]    |                                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `pest::prec_climber::Operator`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:35:45
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Operator::new(Multiply, Left) | Operator::new(CenterDot, Left),
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `pest::prec_climber::Assoc::Left`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:35:70
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Operator::new(Multiply, Left) | Operator::new(CenterDot, Left),
[INFO] [stdout]    |                                                                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `pest::prec_climber::Operator`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             Operator::new(Power, Right),
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `pest::prec_climber::Assoc::Right`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:36:34
[INFO] [stdout]    |
[INFO] [stdout] 36 |             Operator::new(Power, Right),
[INFO] [stdout]    |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `pest::prec_climber::Operator`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Operator::new(Dot, Left)
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `pest::prec_climber::Assoc::Left`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Operator::new(Dot, Left)
[INFO] [stdout]    |                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated enum `pest::prec_climber::Assoc`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         use Assoc::*;
[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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(format_args_nl)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `pest::prec_climber::PrecClimber::<R>::new`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:32:22
[INFO] [stdout]    |
[INFO] [stdout] 32 |         PrecClimber::new(vec![
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `pest::prec_climber::Operator::<R>::new`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:33:23
[INFO] [stdout]    |
[INFO] [stdout] 33 |             Operator::new(Set, Left),
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `pest::prec_climber::Operator::<R>::new`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Operator::new(Plus, Left) | Operator::new(Minus, Left),
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `pest::prec_climber::Operator::<R>::new`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:34:51
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Operator::new(Plus, Left) | Operator::new(Minus, Left),
[INFO] [stdout]    |                                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `pest::prec_climber::Operator::<R>::new`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:35:23
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Operator::new(Multiply, Left) | Operator::new(CenterDot, Left),
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `pest::prec_climber::Operator::<R>::new`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:35:55
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Operator::new(Multiply, Left) | Operator::new(CenterDot, Left),
[INFO] [stdout]    |                                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `pest::prec_climber::Operator::<R>::new`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:36:23
[INFO] [stdout]    |
[INFO] [stdout] 36 |             Operator::new(Power, Right),
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `pest::prec_climber::Operator::<R>::new`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]   --> src/grammar.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Operator::new(Dot, Left)
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `pest::prec_climber::PrecClimber::<R>::climb`: Use `pest::pratt_parser` instead (it is an equivalent which also supports unary prefix/suffix operators).
[INFO] [stdout]          While prec_climber is going to be kept in 2.x minor and patch releases, it may be removed in a future major release.
[INFO] [stdout]    --> src/grammar.rs:275:18
[INFO] [stdout]     |
[INFO] [stdout] 275 |     PREC_CLIMBER.climb(
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 29 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 `nyar_valkyrie` due to 2 previous errors; 29 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6a657ba1bdd700f49ffa86f63b3d3182b6f05168f9844100c69385f9388a381d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a657ba1bdd700f49ffa86f63b3d3182b6f05168f9844100c69385f9388a381d", kill_on_drop: false }`
[INFO] [stdout] 6a657ba1bdd700f49ffa86f63b3d3182b6f05168f9844100c69385f9388a381d
