[INFO] cloning repository https://github.com/jwrunge/compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jwrunge/compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwrunge%2Fcompiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwrunge%2Fcompiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b284443e480d62f08d35fe1dbc076902e6cb1e5
[INFO] checking jwrunge/compiler against master#75530e9f72a1990ed2305e16fd51d02f47048f12 for pr-138676
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwrunge%2Fcompiler" "/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/jwrunge/compiler on toolchain 75530e9f72a1990ed2305e16fd51d02f47048f12
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jwrunge/compiler
[INFO] finished tweaking git repo https://github.com/jwrunge/compiler
[INFO] tweaked toml for git repo https://github.com/jwrunge/compiler written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jwrunge/compiler 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" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 698bdabf948c316cf13af7324157691585e58ae45408cbf79a679551b5f89392
[INFO] running `Command { std: "docker" "start" "-a" "698bdabf948c316cf13af7324157691585e58ae45408cbf79a679551b5f89392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "698bdabf948c316cf13af7324157691585e58ae45408cbf79a679551b5f89392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "698bdabf948c316cf13af7324157691585e58ae45408cbf79a679551b5f89392", kill_on_drop: false }`
[INFO] [stdout] 698bdabf948c316cf13af7324157691585e58ae45408cbf79a679551b5f89392
[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=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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 891b2a01b52ac335bdc1f6f1a06bf5508122a978557062ee85bdfc426a719162
[INFO] running `Command { std: "docker" "start" "-a" "891b2a01b52ac335bdc1f6f1a06bf5508122a978557062ee85bdfc426a719162", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/parse.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let g = grammar::get_grammar();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/parse.rs:54:20
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn parse_statement(t: Vec<Token>, s: grammar::Grammar) {
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/parse.rs:54:35
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn parse_statement(t: Vec<Token>, s: grammar::Grammar) {
[INFO] [stdout]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asm_maps`
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let asm_maps = asm::get_asm_maps();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_asm_maps`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ASTProgram` is never constructed
[INFO] [stdout]  --> src/parse.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct ASTProgram {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ASTFunction` is never constructed
[INFO] [stdout]   --> src/parse.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct ASTFunction {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ASTStatement` is never constructed
[INFO] [stdout]   --> src/parse.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct ASTStatement {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ASTExpression` is never used
[INFO] [stdout]   --> src/parse.rs:21:6
[INFO] [stdout]    |
[INFO] [stdout] 21 | type ASTExpression = String;
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StatementAction` is never used
[INFO] [stdout]   --> src/parse.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum StatementAction {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_statement` is never used
[INFO] [stdout]   --> src/parse.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn parse_statement(t: Vec<Token>, s: grammar::Grammar) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reg` and `val` are never read
[INFO] [stdout]  --> src/asm.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct ConstArgs {
[INFO] [stdout]   |            --------- fields in this struct
[INFO] [stdout] 4 |     reg: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     val: i32,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reg`, `func`, and `reg_arg` are never read
[INFO] [stdout]   --> src/asm.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct AutoArgs {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 9  |     reg: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     func: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     reg_arg: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `const_args`, `user_arg_regs`, and `auto_args` are never read
[INFO] [stdout]   --> src/asm.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct AsmMap {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 15 |     const_args: Option<Vec<ConstArgs>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 16 |     user_arg_regs: Option<Vec<String>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 17 |     auto_args: Option<AutoArgs>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_files_list` is never used
[INFO] [stdout]   --> src/asm.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn get_files_list() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/parse.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let g = grammar::get_grammar();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/parse.rs:54:20
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn parse_statement(t: Vec<Token>, s: grammar::Grammar) {
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/parse.rs:54:35
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn parse_statement(t: Vec<Token>, s: grammar::Grammar) {
[INFO] [stdout]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asm_maps`
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let asm_maps = asm::get_asm_maps();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_asm_maps`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ASTProgram` is never constructed
[INFO] [stdout]  --> src/parse.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct ASTProgram {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ASTFunction` is never constructed
[INFO] [stdout]   --> src/parse.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct ASTFunction {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ASTStatement` is never constructed
[INFO] [stdout]   --> src/parse.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct ASTStatement {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ASTExpression` is never used
[INFO] [stdout]   --> src/parse.rs:21:6
[INFO] [stdout]    |
[INFO] [stdout] 21 | type ASTExpression = String;
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StatementAction` is never used
[INFO] [stdout]   --> src/parse.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum StatementAction {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_statement` is never used
[INFO] [stdout]   --> src/parse.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn parse_statement(t: Vec<Token>, s: grammar::Grammar) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reg` and `val` are never read
[INFO] [stdout]  --> src/asm.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct ConstArgs {
[INFO] [stdout]   |            --------- fields in this struct
[INFO] [stdout] 4 |     reg: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     val: i32,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reg`, `func`, and `reg_arg` are never read
[INFO] [stdout]   --> src/asm.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct AutoArgs {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 9  |     reg: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     func: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     reg_arg: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `const_args`, `user_arg_regs`, and `auto_args` are never read
[INFO] [stdout]   --> src/asm.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct AsmMap {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 15 |     const_args: Option<Vec<ConstArgs>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 16 |     user_arg_regs: Option<Vec<String>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 17 |     auto_args: Option<AutoArgs>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_files_list` is never used
[INFO] [stdout]   --> src/asm.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn get_files_list() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.20s
[INFO] running `Command { std: "docker" "inspect" "891b2a01b52ac335bdc1f6f1a06bf5508122a978557062ee85bdfc426a719162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "891b2a01b52ac335bdc1f6f1a06bf5508122a978557062ee85bdfc426a719162", kill_on_drop: false }`
[INFO] [stdout] 891b2a01b52ac335bdc1f6f1a06bf5508122a978557062ee85bdfc426a719162