[INFO] cloning repository https://github.com/u66u/juu2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/u66u/juu2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu66u%2Fjuu2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu66u%2Fjuu2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cdb386318b0414ce327f84180db6be3371478df
[INFO] testing u66u/juu2 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu66u%2Fjuu2" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/u66u/juu2
[INFO] finished tweaking git repo https://github.com/u66u/juu2
[INFO] tweaked toml for git repo https://github.com/u66u/juu2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/u66u/juu2 on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/u66u/juu2 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "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
[ERROR] error running command: no output for 300 seconds
[INFO] testing u66u/juu2 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu66u%2Fjuu2" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/u66u/juu2
[INFO] finished tweaking git repo https://github.com/u66u/juu2
[INFO] tweaked toml for git repo https://github.com/u66u/juu2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/u66u/juu2 on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/u66u/juu2 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest_derive v2.8.4
[INFO] [stderr]   Downloaded pest_meta v2.8.4
[INFO] [stderr]   Downloaded pest_generator v2.8.4
[INFO] [stderr]   Downloaded pest v2.8.4
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac82623f886a5916c9a5cda7c5813680197962f9407de8375c10d5a8d971e1d8
[INFO] running `Command { std: "docker" "start" "-a" "ac82623f886a5916c9a5cda7c5813680197962f9407de8375c10d5a8d971e1d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac82623f886a5916c9a5cda7c5813680197962f9407de8375c10d5a8d971e1d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac82623f886a5916c9a5cda7c5813680197962f9407de8375c10d5a8d971e1d8", kill_on_drop: false }`
[INFO] [stdout] ac82623f886a5916c9a5cda7c5813680197962f9407de8375c10d5a8d971e1d8
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 651252c45a2fa5e6a3f30a9dc2b55bb17850fae3ef20e5b68281b0189c552655
[INFO] running `Command { std: "docker" "start" "-a" "651252c45a2fa5e6a3f30a9dc2b55bb17850fae3ef20e5b68281b0189c552655", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling pest v2.8.4
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling pest_meta v2.8.4
[INFO] [stderr]    Compiling pest_generator v2.8.4
[INFO] [stderr]    Compiling pest_derive v2.8.4
[INFO] [stderr]    Compiling juu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]  --> src/monomorphize.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/monomorphize.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let mut local_gen_types = concrete_gens.clone();
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TypeVar` is never constructed
[INFO] [stdout]  --> src/ast.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Type {
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     TypeVar(String),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mutable` is never read
[INFO] [stdout]   --> src/ast.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     Let {
[INFO] [stdout]    |     --- field in this variant
[INFO] [stdout] 73 |         name: String,
[INFO] [stdout] 74 |         mutable: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stmt` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ast.rs:101:10
[INFO] [stdout]     |
[INFO] [stdout] 101 |     Stmt(Stmt),
[INFO] [stdout]     |     ---- ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Item` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 101 -     Stmt(Stmt),
[INFO] [stdout] 101 +     Stmt(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `U8` and `Struct` are never constructed
[INFO] [stdout]   --> src/ir.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum CType {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 30 |     U8,       
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     Struct(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `If` and `While` are never constructed
[INFO] [stdout]   --> src/ir.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub enum Stmt {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 50 |     If {
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     While {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stmt` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Raw` is never constructed
[INFO] [stdout]   --> src/ir.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub enum Expr {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 86 |     Raw(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_bodies` is never read
[INFO] [stdout]   --> src/types.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct ProgramContext {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn_bodies: HashMap<String, crate::ast::Function>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ProgramContext` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/types.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct TypeInfo {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 65 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `generics` are never read
[INFO] [stdout]   --> src/types.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub struct TraitInfo {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 72 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 73 |     pub generics: Vec<u32>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TraitInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `Command { std: "docker" "inspect" "651252c45a2fa5e6a3f30a9dc2b55bb17850fae3ef20e5b68281b0189c552655", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "651252c45a2fa5e6a3f30a9dc2b55bb17850fae3ef20e5b68281b0189c552655", kill_on_drop: false }`
[INFO] [stdout] 651252c45a2fa5e6a3f30a9dc2b55bb17850fae3ef20e5b68281b0189c552655
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 70587b804fcdeb4aefc1bc5f7edae1f53a9bd86fb24431aa13b47b9526043139
[INFO] running `Command { std: "docker" "start" "-a" "70587b804fcdeb4aefc1bc5f7edae1f53a9bd86fb24431aa13b47b9526043139", kill_on_drop: false }`
[INFO] [stderr]    Compiling juu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]  --> src/monomorphize.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/monomorphize.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 228 |     let mut local_gen_types = concrete_gens.clone();
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/parser.rs:574:51
[INFO] [stdout]     |
[INFO] [stdout] 574 |         if let Stmt::Expr(Expr::Binary { op, lhs, rhs }) = stmt {
[INFO] [stdout]     |                                                   ^^^ help: try ignoring the field: `rhs: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l_add`
[INFO] [stdout]    --> src/parser.rs:579:22
[INFO] [stdout]     |
[INFO] [stdout] 579 |                 lhs: l_add,
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_l_add`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TypeVar` is never constructed
[INFO] [stdout]  --> src/ast.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Type {
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     TypeVar(String),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mutable` is never read
[INFO] [stdout]   --> src/ast.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     Let {
[INFO] [stdout]    |     --- field in this variant
[INFO] [stdout] 73 |         name: String,
[INFO] [stdout] 74 |         mutable: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stmt` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ast.rs:101:10
[INFO] [stdout]     |
[INFO] [stdout] 101 |     Stmt(Stmt),
[INFO] [stdout]     |     ---- ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Item` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 101 -     Stmt(Stmt),
[INFO] [stdout] 101 +     Stmt(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `U8` and `Struct` are never constructed
[INFO] [stdout]   --> src/ir.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum CType {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 30 |     U8,       
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     Struct(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `If` and `While` are never constructed
[INFO] [stdout]   --> src/ir.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub enum Stmt {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 50 |     If {
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     While {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stmt` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Raw` is never constructed
[INFO] [stdout]   --> src/ir.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub enum Expr {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 86 |     Raw(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_bodies` is never read
[INFO] [stdout]   --> src/types.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct ProgramContext {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn_bodies: HashMap<String, crate::ast::Function>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ProgramContext` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/types.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct TypeInfo {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 65 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `generics` are never read
[INFO] [stdout]   --> src/types.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub struct TraitInfo {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 72 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 73 |     pub generics: Vec<u32>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TraitInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "70587b804fcdeb4aefc1bc5f7edae1f53a9bd86fb24431aa13b47b9526043139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70587b804fcdeb4aefc1bc5f7edae1f53a9bd86fb24431aa13b47b9526043139", kill_on_drop: false }`
[INFO] [stdout] 70587b804fcdeb4aefc1bc5f7edae1f53a9bd86fb24431aa13b47b9526043139
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] def8e801b7d583bc339d7bcc29875643d8308f8de89f2993cbf6f771d31d6de2
[INFO] running `Command { std: "docker" "start" "-a" "def8e801b7d583bc339d7bcc29875643d8308f8de89f2993cbf6f771d31d6de2", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Arc` and `Mutex`
[INFO] [stderr]  --> src/monomorphize.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::sync::{Arc, Mutex};
[INFO] [stderr]   |                 ^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/monomorphize.rs:228:9
[INFO] [stderr]     |
[INFO] [stderr] 228 |     let mut local_gen_types = concrete_gens.clone();
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rhs`
[INFO] [stderr]    --> src/parser.rs:574:51
[INFO] [stderr]     |
[INFO] [stderr] 574 |         if let Stmt::Expr(Expr::Binary { op, lhs, rhs }) = stmt {
[INFO] [stderr]     |                                                   ^^^ help: try ignoring the field: `rhs: _`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l_add`
[INFO] [stderr]    --> src/parser.rs:579:22
[INFO] [stderr]     |
[INFO] [stderr] 579 |                 lhs: l_add,
[INFO] [stderr]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_l_add`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `TypeVar` is never constructed
[INFO] [stderr]  --> src/ast.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub enum Type {
[INFO] [stderr]   |          ---- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 5 |     TypeVar(String),
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `mutable` is never read
[INFO] [stderr]   --> src/ast.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     Let {
[INFO] [stderr]    |     --- field in this variant
[INFO] [stderr] 73 |         name: String,
[INFO] [stderr] 74 |         mutable: bool,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Stmt` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/ast.rs:101:10
[INFO] [stderr]     |
[INFO] [stderr] 101 |     Stmt(Stmt),
[INFO] [stderr]     |     ---- ^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Item` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 101 -     Stmt(Stmt),
[INFO] [stderr] 101 +     Stmt(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: variants `U8` and `Struct` are never constructed
[INFO] [stderr]   --> src/ir.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub enum CType {
[INFO] [stderr]    |          ----- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 30 |     U8,       
[INFO] [stderr]    |     ^^
[INFO] [stderr] ...
[INFO] [stderr] 34 |     Struct(String),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `If` and `While` are never constructed
[INFO] [stderr]   --> src/ir.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub enum Stmt {
[INFO] [stderr]    |          ---- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 50 |     If {
[INFO] [stderr]    |     ^^
[INFO] [stderr] ...
[INFO] [stderr] 55 |     While {
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Stmt` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Raw` is never constructed
[INFO] [stderr]   --> src/ir.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub enum Expr {
[INFO] [stderr]    |          ---- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 86 |     Raw(String),
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `fn_bodies` is never read
[INFO] [stderr]   --> src/types.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub struct ProgramContext {
[INFO] [stderr]    |            -------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 49 |     pub fn_bodies: HashMap<String, crate::ast::Function>,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ProgramContext` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]   --> src/types.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub struct TypeInfo {
[INFO] [stderr]    |            -------- field in this struct
[INFO] [stderr] 65 |     pub name: String,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `TypeInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `generics` are never read
[INFO] [stderr]   --> src/types.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub struct TraitInfo {
[INFO] [stderr]    |            --------- fields in this struct
[INFO] [stderr] 72 |     pub name: String,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 73 |     pub generics: Vec<u32>,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `TraitInfo` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `juu` (bin "juu" test) generated 13 warnings (run `cargo fix --bin "juu" -p juu --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/juu/9bf4598d43a19334/deps/juu-9bf4598d43a19334)
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test checker::tests::test_generic_function_error ... ok
[INFO] [stdout] test checker::tests::test_function_args_mismatch ... ok
[INFO] [stdout] test checker::tests::test_generic_function_inference ... ok
[INFO] [stdout] test checker::tests::test_return_type_check ... ok
[INFO] [stdout] test checker::tests::test_nested_scope_shadowing ... ok
[INFO] [stdout] test checker::tests::test_generic_struct_usage ... ok
[INFO] [stdout] test checker::tests::test_type_mismatch ... ok
[INFO] [stdout] test checker::tests::test_typeclass_basic ... ok
[INFO] [stdout] test checker::tests::test_struct_field_mismatch ... ok
[INFO] [stdout] test checker::tests::test_struct_access ... ok
[INFO] [stdout] test infer::tests::test_basic_unify ... ok
[INFO] [stdout] test checker::tests::test_valid_math ... ok
[INFO] [stdout] test checker::tests::test_unknown_variable ... ok
[INFO] [stdout] test checker::tests::test_variable_shadowing ... ok
[INFO] [stdout] test infer::tests::test_function_arg_mismatch_complex ... ok
[INFO] [stdout] test infer::tests::test_function_unify ... ok
[INFO] [stdout] test infer::tests::test_var_binding ... ok
[INFO] [stdout] test infer::tests::test_recursive_crash ... ok
[INFO] [stdout] test infer::tests::test_complex_unification_chain ... ok
[INFO] [stdout] test infer::tests::test_list_generics ... ok
[INFO] [stdout] test infer::tests::test_nested_constructor_mismatch ... ok
[INFO] [stdout] test monomorphize::tests::test_mono_primitive_types ... ok
[INFO] [stdout] test monomorphize::tests::test_mono_member_access_resolution ... ok
[INFO] [stdout] test monomorphize::tests::test_mono_generic_function_naming ... ok
[INFO] [stdout] test monomorphize::tests::test_mono_method_call_mangling ... ok
[INFO] [stdout] test parser::tests::test_chained_calls_with_args ... ok
[INFO] [stdout] test parser::tests::test_mutable_pointer_syntax ... ok
[INFO] [stdout] test monomorphize::tests::test_mono_nested_generics ... ok
[INFO] [stdout] test parser::tests::test_complex_math_precedence ... ok
[INFO] [stdout] test parser::tests::test_generics_everywhere ... ok
[INFO] [stdout] test parser::tests::test_parsing_comments ... ok
[INFO] [stdout] test parser::tests::test_impl_parsing_distinction ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "def8e801b7d583bc339d7bcc29875643d8308f8de89f2993cbf6f771d31d6de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def8e801b7d583bc339d7bcc29875643d8308f8de89f2993cbf6f771d31d6de2", kill_on_drop: false }`
[INFO] [stdout] def8e801b7d583bc339d7bcc29875643d8308f8de89f2993cbf6f771d31d6de2
