[INFO] cloning repository https://github.com/Nyrox/experimental-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nyrox/experimental-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyrox%2Fexperimental-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyrox%2Fexperimental-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9546bd7b7de756541a155165c2939df440e6ab6c
[INFO] testing Nyrox/experimental-lang against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyrox%2Fexperimental-lang" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nyrox/experimental-lang 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 git repo https://github.com/Nyrox/experimental-lang
[INFO] finished tweaking git repo https://github.com/Nyrox/experimental-lang
[INFO] tweaked toml for git repo https://github.com/Nyrox/experimental-lang written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Nyrox/experimental-lang 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded siphasher v0.3.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b8b40f4edda63dd49b4175c423cb3f890f99deb4b8d1c4dbb53a172d3c8f2e7
[INFO] running `Command { std: "docker" "start" "-a" "3b8b40f4edda63dd49b4175c423cb3f890f99deb4b8d1c4dbb53a172d3c8f2e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b8b40f4edda63dd49b4175c423cb3f890f99deb4b8d1c4dbb53a172d3c8f2e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b8b40f4edda63dd49b4175c423cb3f890f99deb4b8d1c4dbb53a172d3c8f2e7", kill_on_drop: false }`
[INFO] [stdout] 3b8b40f4edda63dd49b4175c423cb3f890f99deb4b8d1c4dbb53a172d3c8f2e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b419e812b01e59cb72c60981aa58a46f111872c1cad89685346f7bdf49b92e63
[INFO] running `Command { std: "docker" "start" "-a" "b419e812b01e59cb72c60981aa58a46f111872c1cad89685346f7bdf49b92e63", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling siphasher v0.3.9
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling smallstr v0.2.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling terminfo v0.7.3
[INFO] [stderr]    Compiling mortal v0.2.2
[INFO] [stderr]    Compiling linefeed v0.6.0
[INFO] [stderr]    Compiling experimental-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_chains)]
[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:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(iterator_fold_self)]
[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:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(try_trait_v2)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Position`, `Span`
[INFO] [stdout]  --> src/parser/recdec.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::{Position, Span, Spanned, Token};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/parser/recdec.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::ast::untyped::{self, *};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/interpret.rs:274:51
[INFO] [stdout]     |
[INFO] [stdout] 274 | ...                   Operator::BinOpMod => (l % r),
[INFO] [stdout]     |                                             ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 274 -                             Operator::BinOpMod => (l % r),
[INFO] [stdout] 274 +                             Operator::BinOpMod => l % r,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/typecheck/mod.rs:469:30
[INFO] [stdout]     |
[INFO] [stdout] 469 |             Type::ErrType => (0),
[INFO] [stdout]     |                              ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 469 -             Type::ErrType => (0),
[INFO] [stdout] 469 +             Type::ErrType => 0,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `untyped::Operator`
[INFO] [stdout]    --> src/typecheck/mod.rs:522:17
[INFO] [stdout]     |
[INFO] [stdout] 522 |             use untyped::Operator;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `untyped::TypeDeclaration`
[INFO] [stdout]    --> src/typecheck/mod.rs:755:9
[INFO] [stdout]     |
[INFO] [stdout] 755 |     use untyped::TypeDeclaration;
[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:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(iterator_fold_self)]
[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:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(try_trait_v2)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iterator_fold_self` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(iterator_fold_self)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]   --> src/main.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::{error::Error, borrow::Borrow};
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 8 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 `experimental-lang` due to 7 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b419e812b01e59cb72c60981aa58a46f111872c1cad89685346f7bdf49b92e63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b419e812b01e59cb72c60981aa58a46f111872c1cad89685346f7bdf49b92e63", kill_on_drop: false }`
[INFO] [stdout] b419e812b01e59cb72c60981aa58a46f111872c1cad89685346f7bdf49b92e63
