[INFO] cloning repository https://github.com/unbalancedparentheses/toylang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/unbalancedparentheses/toylang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funbalancedparentheses%2Ftoylang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funbalancedparentheses%2Ftoylang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 03fb524eae12098c5f8d1474d5846be52f2f30ef
[INFO] testing unbalancedparentheses/toylang against 1.93.0 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funbalancedparentheses%2Ftoylang" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/unbalancedparentheses/toylang
[INFO] finished tweaking git repo https://github.com/unbalancedparentheses/toylang
[INFO] tweaked toml for git repo https://github.com/unbalancedparentheses/toylang written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/unbalancedparentheses/toylang on toolchain 1.93.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.93.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/unbalancedparentheses/toylang 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" "+1.93.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8parse v0.1.1
[INFO] [stderr]   Downloaded rust-argon2 v0.5.1
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[INFO] [stderr]   Downloaded serde v1.0.103
[INFO] [stderr]   Downloaded petgraph v0.4.13
[INFO] [stderr]   Downloaded lalrpop v0.17.2
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[INFO] [stderr]   Downloaded cc v1.0.48
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[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.3
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[INFO] [stderr]   Downloaded libc v0.2.66
[INFO] [stderr]   Downloaded diff v0.1.11
[INFO] [stderr]   Downloaded ena v0.13.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7f6b60df57046f5ad30e4594c9c75ba5a2124fa834741fb5937f68cd5daa133
[INFO] running `Command { std: "docker" "start" "-a" "a7f6b60df57046f5ad30e4594c9c75ba5a2124fa834741fb5937f68cd5daa133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7f6b60df57046f5ad30e4594c9c75ba5a2124fa834741fb5937f68cd5daa133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7f6b60df57046f5ad30e4594c9c75ba5a2124fa834741fb5937f68cd5daa133", kill_on_drop: false }`
[INFO] [stdout] a7f6b60df57046f5ad30e4594c9c75ba5a2124fa834741fb5937f68cd5daa133
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73963ab12351ef311969b1dbbf4180640a5387975fcfb22136efd05ffaf12fb1
[INFO] running `Command { std: "docker" "start" "-a" "73963ab12351ef311969b1dbbf4180640a5387975fcfb22136efd05ffaf12fb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling lalrpop-util v0.17.2
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling rustyline v5.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Expr` and `Opcode`
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::ast::{Expr, Opcode};
[INFO] [stdout]   |                  ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:784:5
[INFO] [stdout]     |
[INFO] [stdout] 784 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 784 -     (__0)
[INFO] [stdout] 784 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:821:5
[INFO] [stdout]     |
[INFO] [stdout] 821 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 821 -     (__0)
[INFO] [stdout] 821 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:858:5
[INFO] [stdout]     |
[INFO] [stdout] 858 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 858 -     (__0)
[INFO] [stdout] 858 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:869:5
[INFO] [stdout]     |
[INFO] [stdout] 869 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 869 -     (__0)
[INFO] [stdout] 869 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:882:5
[INFO] [stdout]     |
[INFO] [stdout] 882 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 882 -     (__0)
[INFO] [stdout] 882 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.92s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.17.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "73963ab12351ef311969b1dbbf4180640a5387975fcfb22136efd05ffaf12fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73963ab12351ef311969b1dbbf4180640a5387975fcfb22136efd05ffaf12fb1", kill_on_drop: false }`
[INFO] [stdout] 73963ab12351ef311969b1dbbf4180640a5387975fcfb22136efd05ffaf12fb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a10c538a3de6984e48aad73d9c97ae45ce451e355e93cbd9cee0378a5382c797
[INFO] running `Command { std: "docker" "start" "-a" "a10c538a3de6984e48aad73d9c97ae45ce451e355e93cbd9cee0378a5382c797", kill_on_drop: false }`
[INFO] [stderr]    Compiling lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Expr` and `Opcode`
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::ast::{Expr, Opcode};
[INFO] [stdout]   |                  ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:784:5
[INFO] [stdout]     |
[INFO] [stdout] 784 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 784 -     (__0)
[INFO] [stdout] 784 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:821:5
[INFO] [stdout]     |
[INFO] [stdout] 821 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 821 -     (__0)
[INFO] [stdout] 821 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:858:5
[INFO] [stdout]     |
[INFO] [stdout] 858 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 858 -     (__0)
[INFO] [stdout] 858 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:869:5
[INFO] [stdout]     |
[INFO] [stdout] 869 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 869 -     (__0)
[INFO] [stdout] 869 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:882:5
[INFO] [stdout]     |
[INFO] [stdout] 882 |     (__0)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 882 -     (__0)
[INFO] [stdout] 882 +     __0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.17.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "a10c538a3de6984e48aad73d9c97ae45ce451e355e93cbd9cee0378a5382c797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a10c538a3de6984e48aad73d9c97ae45ce451e355e93cbd9cee0378a5382c797", kill_on_drop: false }`
[INFO] [stdout] a10c538a3de6984e48aad73d9c97ae45ce451e355e93cbd9cee0378a5382c797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0478b426d827f8ffbbdc1f7bbeeacf57f1b3bd1d50a1cd360f6f8a936ff09cf2
[INFO] running `Command { std: "docker" "start" "-a" "0478b426d827f8ffbbdc1f7bbeeacf57f1b3bd1d50a1cd360f6f8a936ff09cf2", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Expr` and `Opcode`
[INFO] [stderr]  --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:4:18
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::ast::{Expr, Opcode};
[INFO] [stderr]   |                  ^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:784:5
[INFO] [stderr]     |
[INFO] [stderr] 784 |     (__0)
[INFO] [stderr]     |     ^   ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 784 -     (__0)
[INFO] [stderr] 784 +     __0
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:821:5
[INFO] [stderr]     |
[INFO] [stderr] 821 |     (__0)
[INFO] [stderr]     |     ^   ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 821 -     (__0)
[INFO] [stderr] 821 +     __0
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:858:5
[INFO] [stderr]     |
[INFO] [stderr] 858 |     (__0)
[INFO] [stderr]     |     ^   ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 858 -     (__0)
[INFO] [stderr] 858 +     __0
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:869:5
[INFO] [stderr]     |
[INFO] [stderr] 869 |     (__0)
[INFO] [stderr]     |     ^   ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 869 -     (__0)
[INFO] [stderr] 869 +     __0
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/lang-937fa4a668f579fc/out/lang.rs:882:5
[INFO] [stderr]     |
[INFO] [stderr] 882 |     (__0)
[INFO] [stderr]     |     ^   ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 882 -     (__0)
[INFO] [stderr] 882 +     __0
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `lang` (bin "lang" test) generated 6 warnings (run `cargo fix --bin "lang" -p lang --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.17.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lang-bd055370c6707633)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lang ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- lang stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'lang' (26) panicked at src/main.rs:52:5:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: "1034"
[INFO] [stdout]  right: "((22 * 44) + 66)"
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6006578734e2 - std::backtrace_rs::backtrace::libunwind::trace::h90e89fac33585832
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6006578734e2 - std::backtrace_rs::backtrace::trace_unsynchronized::heebcf2380a8e7359
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6006578734e2 - std::sys::backtrace::_print_fmt::hdf3e2a22d2f810db
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:68:9
[INFO] [stdout]    3:     0x6006578734e2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hac1d885928ba8582
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:38:26
[INFO] [stdout]    4:     0x600657883cc7 - core::fmt::rt::Argument::fmt::h6901eb7c19abebe8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x600657883cc7 - core::fmt::write::h83ebb4d32483be9e
[INFO] [stdout]    6:     0x600657842186 - std::io::default_write_fmt::h751a79cdae495f10
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x600657842186 - std::io::Write::write_fmt::h9ef514f8700ff7b2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x6006578527f9 - std::sys::backtrace::BacktraceLock::print::hcc2e1a3ac996c911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:41:9
[INFO] [stdout]    9:     0x6006578527f9 - std::panicking::default_hook::{{closure}}::h8e9c4d1276f0925f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x600657852691 - std::panicking::default_hook::h2b2078d38b534dfb
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x60065773b4be - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39d051e7dedac6a7
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x60065773b4be - test::test_main_with_exit_callback::{{closure}}::h4b005fe75814c302
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x600657852a72 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd426070722c13cbf
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x600657852a72 - std::panicking::panic_with_hook::h39b739724e701bfd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x6006578528b8 - std::panicking::panic_handler::{{closure}}::he540c4833054e458
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x60065784de39 - std::sys::backtrace::__rust_end_short_backtrace::hfa179d89deec8aed
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:176:18
[INFO] [stdout]   17:     0x600657836f4d - __rustc[d131491b17107b07]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x60065788b56c - core::panicking::panic_fmt::ha564519d657d9c46
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x60065788b423 - core::panicking::assert_failed_inner::h6fc38e43be639d33
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x600657715d08 - core::panicking::assert_failed::hdaa35006235c96ab
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x600657717a1a - lang::lang::hb0d9716111894a4d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:52:5
[INFO] [stdout]   22:     0x600657717a67 - lang::lang::{{closure}}::hb54260441c9b373b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:48:10
[INFO] [stdout]   23:     0x600657714d26 - core::ops::function::FnOnce::call_once::h4d9e9aa6bfc423d4
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x60065773b2eb - core::ops::function::FnOnce::call_once::h0217b30cfdee2e67
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x60065773b2eb - test::__rust_begin_short_backtrace::h6d98714a1e28f556
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x60065774ec7a - test::run_test_in_process::{{closure}}::he2c70d2634d3a3cc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x60065774ec7a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40a0a825bcf17fdd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x60065774ec7a - std::panicking::catch_unwind::do_call::h6c8eb5dd6e7b5975
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x60065774ec7a - std::panicking::catch_unwind::h55455eac2972ad1e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x60065774ec7a - std::panic::catch_unwind::h0025465150a5e558
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x60065774ec7a - test::run_test_in_process::hb61e682f9b630fbc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x60065774ec7a - test::run_test::{{closure}}::hc2c2a7a38ab176e2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x600657728f14 - test::run_test::{{closure}}::ha91867b85cd2a911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x600657728f14 - std::sys::backtrace::__rust_begin_short_backtrace::ha00a9fe02049c339
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:160:18
[INFO] [stdout]   35:     0x60065772c842 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::hd629fba9153dfb55
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:92:13
[INFO] [stdout]   36:     0x60065772c842 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4189018816a5c5d9
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x60065772c842 - std::panicking::catch_unwind::do_call::hf9fcdbca3c2e9877
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x60065772c842 - std::panicking::catch_unwind::h97b92d88631c7c64
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x60065772c842 - std::panic::catch_unwind::ha77cdbb68e725e5e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x60065772c842 - std::thread::lifecycle::spawn_unchecked::{{closure}}::h511f05bc1a132253
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:90:26
[INFO] [stdout]   41:     0x60065772c842 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6b68b31e9b685cb8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x6006578494bf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h22a27d165e4e871d
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x6006578494bf - std::sys::thread::unix::Thread::new::thread_start::h45cc87bb053add0f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   44:     0x717c104f0aa4 - <unknown>
[INFO] [stdout]   45:     0x717c1057da64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     lang
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin lang`
[INFO] running `Command { std: "docker" "inspect" "0478b426d827f8ffbbdc1f7bbeeacf57f1b3bd1d50a1cd360f6f8a936ff09cf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0478b426d827f8ffbbdc1f7bbeeacf57f1b3bd1d50a1cd360f6f8a936ff09cf2", kill_on_drop: false }`
[INFO] [stdout] 0478b426d827f8ffbbdc1f7bbeeacf57f1b3bd1d50a1cd360f6f8a936ff09cf2
