[INFO] cloning repository https://github.com/daniel-dron/lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daniel-dron/lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel-dron%2Flang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel-dron%2Flang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] faecc5c7a778da28678423c2370584d77a2f8d94
[INFO] checking daniel-dron/lang against try#724e78794d2cf06eef820a24c9a4608d63435e1d for pr-149145
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel-dron%2Flang" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/daniel-dron/lang
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/daniel-dron/lang
[INFO] tweaked toml for git repo https://github.com/daniel-dron/lang written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/daniel-dron/lang on toolchain 724e78794d2cf06eef820a24c9a4608d63435e1d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/daniel-dron/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" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5730d9634342b0ff0036a55e31b2a617a07ad0902991a7667fd940bde1bc3df3
[INFO] running `Command { std: "docker" "start" "-a" "5730d9634342b0ff0036a55e31b2a617a07ad0902991a7667fd940bde1bc3df3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5730d9634342b0ff0036a55e31b2a617a07ad0902991a7667fd940bde1bc3df3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5730d9634342b0ff0036a55e31b2a617a07ad0902991a7667fd940bde1bc3df3", kill_on_drop: false }`
[INFO] [stdout] 5730d9634342b0ff0036a55e31b2a617a07ad0902991a7667fd940bde1bc3df3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a00d727ace685571e55b57a67f236754ac945c45781bca33d692c169128a8328
[INFO] running `Command { std: "docker" "start" "-a" "a00d727ace685571e55b57a67f236754ac945c45781bca33d692c169128a8328", kill_on_drop: false }`
[INFO] [stderr]     Checking lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::types`
[INFO] [stdout]  --> src/frontend/mut_visitor.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::types;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::types`
[INFO] [stdout]  --> src/frontend/mut_visitor.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::types;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ref_cell`
[INFO] [stdout]    --> src/common/value.rs:104:29
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Value::Instance(ref_cell) => todo!(),
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ref_cell`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ref_cell`
[INFO] [stdout]    --> src/common/value.rs:104:29
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Value::Instance(ref_cell) => todo!(),
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ref_cell`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]   --> src/frontend/mut_visitor.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         ty,
[INFO] [stdout]    |         ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:127:59
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn walk_expression<T: MutVisitor>(vis: &mut T, Expr { id, kind, span, ty }: &mut Expr) {
[INFO] [stdout]     |                                                           ^^ help: try ignoring the field: `id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:127:69
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn walk_expression<T: MutVisitor>(vis: &mut T, Expr { id, kind, span, ty }: &mut Expr) {
[INFO] [stdout]     |                                                                     ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:127:75
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn walk_expression<T: MutVisitor>(vis: &mut T, Expr { id, kind, span, ty }: &mut Expr) {
[INFO] [stdout]     |                                                                           ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `array_index_expr`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:131:31
[INFO] [stdout]     |
[INFO] [stdout] 131 |         ExprKind::IndexAccess(array_index_expr) => todo!(),
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_array_index_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unary_expr`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:133:25
[INFO] [stdout]     |
[INFO] [stdout] 133 |         ExprKind::Unary(unary_expr) => todo!(),
[INFO] [stdout]     |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unary_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `closure_expr`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:136:27
[INFO] [stdout]     |
[INFO] [stdout] 136 |         ExprKind::Closure(closure_expr) => todo!(),
[INFO] [stdout]     |                           ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_closure_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instanciate_type_exp`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:137:28
[INFO] [stdout]     |
[INFO] [stdout] 137 |         ExprKind::Instance(instanciate_type_exp) => todo!(),
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instanciate_type_exp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `member_access_expr`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:138:32
[INFO] [stdout]     |
[INFO] [stdout] 138 |         ExprKind::MemberAccess(member_access_expr) => todo!(),
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_member_access_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |     AssignmentStmt { target, value }: &mut AssignmentStmt,
[INFO] [stdout]     |                              ^^^^^ help: try ignoring the field: `value: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_descriptor`
[INFO] [stdout]   --> src/middle/types.rs:63:29
[INFO] [stdout]    |
[INFO] [stdout] 63 |             Type::NamedType(type_descriptor) => todo!(),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_descriptor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]   --> src/frontend/mut_visitor.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         ty,
[INFO] [stdout]    |         ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:127:59
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn walk_expression<T: MutVisitor>(vis: &mut T, Expr { id, kind, span, ty }: &mut Expr) {
[INFO] [stdout]     |                                                           ^^ help: try ignoring the field: `id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:127:69
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn walk_expression<T: MutVisitor>(vis: &mut T, Expr { id, kind, span, ty }: &mut Expr) {
[INFO] [stdout]     |                                                                     ^^^^ help: try ignoring the field: `span: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:127:75
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn walk_expression<T: MutVisitor>(vis: &mut T, Expr { id, kind, span, ty }: &mut Expr) {
[INFO] [stdout]     |                                                                           ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `array_index_expr`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:131:31
[INFO] [stdout]     |
[INFO] [stdout] 131 |         ExprKind::IndexAccess(array_index_expr) => todo!(),
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_array_index_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unary_expr`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:133:25
[INFO] [stdout]     |
[INFO] [stdout] 133 |         ExprKind::Unary(unary_expr) => todo!(),
[INFO] [stdout]     |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unary_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `closure_expr`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:136:27
[INFO] [stdout]     |
[INFO] [stdout] 136 |         ExprKind::Closure(closure_expr) => todo!(),
[INFO] [stdout]     |                           ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_closure_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `instanciate_type_exp`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:137:28
[INFO] [stdout]     |
[INFO] [stdout] 137 |         ExprKind::Instance(instanciate_type_exp) => todo!(),
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instanciate_type_exp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `member_access_expr`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:138:32
[INFO] [stdout]     |
[INFO] [stdout] 138 |         ExprKind::MemberAccess(member_access_expr) => todo!(),
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_member_access_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/frontend/mut_visitor.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |     AssignmentStmt { target, value }: &mut AssignmentStmt,
[INFO] [stdout]     |                              ^^^^^ help: try ignoring the field: `value: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `type_descriptor`
[INFO] [stdout]   --> src/middle/types.rs:63:29
[INFO] [stdout]    |
[INFO] [stdout] 63 |             Type::NamedType(type_descriptor) => todo!(),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_descriptor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::error`
[INFO] [stdout]  --> src/bin/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::error;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mut_visitor::MutVisitor`
[INFO] [stdout]   --> src/bin/main.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |     frontend::{mut_visitor::MutVisitor, resolve::NameResolver},
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::error`
[INFO] [stdout]  --> src/bin/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::error;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mut_visitor::MutVisitor`
[INFO] [stdout]   --> src/bin/main.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |     frontend::{mut_visitor::MutVisitor, resolve::NameResolver},
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "a00d727ace685571e55b57a67f236754ac945c45781bca33d692c169128a8328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a00d727ace685571e55b57a67f236754ac945c45781bca33d692c169128a8328", kill_on_drop: false }`
[INFO] [stdout] a00d727ace685571e55b57a67f236754ac945c45781bca33d692c169128a8328
