[INFO] cloning repository https://github.com/2bt/fanta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/2bt/fanta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2bt%2Ffanta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2bt%2Ffanta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48ff44f42d2b41ce561b659939169f4a12498ff5
[INFO] testing 2bt/fanta against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2bt%2Ffanta" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/2bt/fanta
[INFO] finished tweaking git repo https://github.com/2bt/fanta
[INFO] tweaked toml for git repo https://github.com/2bt/fanta written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/2bt/fanta on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/2bt/fanta 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72cdc69754e1ede24d8e925315df224ed68aa17d48cc92894ccad82fe8270849
[INFO] running `Command { std: "docker" "start" "-a" "72cdc69754e1ede24d8e925315df224ed68aa17d48cc92894ccad82fe8270849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72cdc69754e1ede24d8e925315df224ed68aa17d48cc92894ccad82fe8270849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72cdc69754e1ede24d8e925315df224ed68aa17d48cc92894ccad82fe8270849", kill_on_drop: false }`
[INFO] [stdout] 72cdc69754e1ede24d8e925315df224ed68aa17d48cc92894ccad82fe8270849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 912fa65da64f87d8571d2b56ab83d002bd58d7d01c822b631649eb6633ee4433
[INFO] running `Command { std: "docker" "start" "-a" "912fa65da64f87d8571d2b56ab83d002bd58d7d01c822b631649eb6633ee4433", kill_on_drop: false }`
[INFO] [stderr]    Compiling fanta v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:101:15
[INFO] [stdout]     |
[INFO] [stdout] 101 |     Operation(Operation),
[INFO] [stdout]     |     --------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[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 -     Operation(Operation),
[INFO] [stdout] 101 +     Operation(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/main.rs:102:14
[INFO] [stdout]     |
[INFO] [stdout] 102 |     FuncCall(usize, Vec<usize>),
[INFO] [stdout]     |     -------- ^^^^^  ^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 102 -     FuncCall(usize, Vec<usize>),
[INFO] [stdout] 102 +     FuncCall((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:103:15
[INFO] [stdout]     |
[INFO] [stdout] 103 |     GlobalVar(usize),
[INFO] [stdout]     |     --------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expression` has a derived impl for the trait `Debug`, but this is 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] 103 -     GlobalVar(usize),
[INFO] [stdout] 103 +     GlobalVar(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |     Expression(usize),
[INFO] [stdout]     |     ---------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 107 -     Expression(usize),
[INFO] [stdout] 107 +     Expression(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/main.rs:108:16
[INFO] [stdout]     |
[INFO] [stdout] 108 |     Assignment(usize, usize),
[INFO] [stdout]     |     ---------- ^^^^^  ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 108 -     Assignment(usize, usize),
[INFO] [stdout] 108 +     Assignment((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:109:11
[INFO] [stdout]     |
[INFO] [stdout] 109 |     Block(Vec<usize>),
[INFO] [stdout]     |     ----- ^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 109 -     Block(Vec<usize>),
[INFO] [stdout] 109 +     Block(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/main.rs:110:11
[INFO] [stdout]     |
[INFO] [stdout] 110 |     While(usize, usize),
[INFO] [stdout]     |     ----- ^^^^^  ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 110 -     While(usize, usize),
[INFO] [stdout] 110 +     While((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/main.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     If(usize, usize, Option<usize>),
[INFO] [stdout]     |     -- ^^^^^  ^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 111 -     If(usize, usize, Option<usize>),
[INFO] [stdout] 111 +     If((), (), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     Return(Option<usize>),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 112 -     Return(Option<usize>),
[INFO] [stdout] 112 +     Return(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:171:12
[INFO] [stdout]     |
[INFO] [stdout] 171 |     Expect(TokenKind),
[INFO] [stdout]     |     ------ ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ErrorKind` has a derived impl for the trait `Debug`, but this is 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] 171 -     Expect(TokenKind),
[INFO] [stdout] 171 +     Expect(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `fmt_expr`, `fmt_datatype`, `expr_to_string`, and `datatype_to_string` are never used
[INFO] [stdout]    --> src/main.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] 178 |     fn fmt_expr(&self, n: usize, f: &mut String) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     fn fmt_datatype(&self, dt: usize, f: &mut String) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn expr_to_string(&self, n: usize) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 238 |     fn datatype_to_string(&self, n: usize) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `string_value` is never used
[INFO] [stdout]    --> src/lexer.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 82  | impl<'a> Lexer<'a> {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |     pub fn string_value(&self, tok: &Token) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "912fa65da64f87d8571d2b56ab83d002bd58d7d01c822b631649eb6633ee4433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "912fa65da64f87d8571d2b56ab83d002bd58d7d01c822b631649eb6633ee4433", kill_on_drop: false }`
[INFO] [stdout] 912fa65da64f87d8571d2b56ab83d002bd58d7d01c822b631649eb6633ee4433
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87ff68d59a4a26bf88aa5d9a8fc9268b2cde23baa4e1fc1854b9e5745ebd2921
[INFO] running `Command { std: "docker" "start" "-a" "87ff68d59a4a26bf88aa5d9a8fc9268b2cde23baa4e1fc1854b9e5745ebd2921", kill_on_drop: false }`
[INFO] [stderr]    Compiling fanta v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:101:15
[INFO] [stdout]     |
[INFO] [stdout] 101 |     Operation(Operation),
[INFO] [stdout]     |     --------- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[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 -     Operation(Operation),
[INFO] [stdout] 101 +     Operation(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/main.rs:102:14
[INFO] [stdout]     |
[INFO] [stdout] 102 |     FuncCall(usize, Vec<usize>),
[INFO] [stdout]     |     -------- ^^^^^  ^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 102 -     FuncCall(usize, Vec<usize>),
[INFO] [stdout] 102 +     FuncCall((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:103:15
[INFO] [stdout]     |
[INFO] [stdout] 103 |     GlobalVar(usize),
[INFO] [stdout]     |     --------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Expression` has a derived impl for the trait `Debug`, but this is 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] 103 -     GlobalVar(usize),
[INFO] [stdout] 103 +     GlobalVar(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |     Expression(usize),
[INFO] [stdout]     |     ---------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 107 -     Expression(usize),
[INFO] [stdout] 107 +     Expression(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/main.rs:108:16
[INFO] [stdout]     |
[INFO] [stdout] 108 |     Assignment(usize, usize),
[INFO] [stdout]     |     ---------- ^^^^^  ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 108 -     Assignment(usize, usize),
[INFO] [stdout] 108 +     Assignment((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:109:11
[INFO] [stdout]     |
[INFO] [stdout] 109 |     Block(Vec<usize>),
[INFO] [stdout]     |     ----- ^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 109 -     Block(Vec<usize>),
[INFO] [stdout] 109 +     Block(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/main.rs:110:11
[INFO] [stdout]     |
[INFO] [stdout] 110 |     While(usize, usize),
[INFO] [stdout]     |     ----- ^^^^^  ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 110 -     While(usize, usize),
[INFO] [stdout] 110 +     While((), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/main.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     If(usize, usize, Option<usize>),
[INFO] [stdout]     |     -- ^^^^^  ^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 111 -     If(usize, usize, Option<usize>),
[INFO] [stdout] 111 +     If((), (), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     Return(Option<usize>),
[INFO] [stdout]     |     ------ ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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] 112 -     Return(Option<usize>),
[INFO] [stdout] 112 +     Return(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:171:12
[INFO] [stdout]     |
[INFO] [stdout] 171 |     Expect(TokenKind),
[INFO] [stdout]     |     ------ ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ErrorKind` has a derived impl for the trait `Debug`, but this is 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] 171 -     Expect(TokenKind),
[INFO] [stdout] 171 +     Expect(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `fmt_expr`, `fmt_datatype`, `expr_to_string`, and `datatype_to_string` are never used
[INFO] [stdout]    --> src/main.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] 178 |     fn fmt_expr(&self, n: usize, f: &mut String) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     fn fmt_datatype(&self, dt: usize, f: &mut String) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn expr_to_string(&self, n: usize) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 238 |     fn datatype_to_string(&self, n: usize) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `string_value` is never used
[INFO] [stdout]    --> src/lexer.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 82  | impl<'a> Lexer<'a> {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |     pub fn string_value(&self, tok: &Token) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "87ff68d59a4a26bf88aa5d9a8fc9268b2cde23baa4e1fc1854b9e5745ebd2921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87ff68d59a4a26bf88aa5d9a8fc9268b2cde23baa4e1fc1854b9e5745ebd2921", kill_on_drop: false }`
[INFO] [stdout] 87ff68d59a4a26bf88aa5d9a8fc9268b2cde23baa4e1fc1854b9e5745ebd2921
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3c0010d1dfdba2eab041b48dbe99bdcf325e3d52a9ea9bf2ff87ab1d465f44fd
[INFO] running `Command { std: "docker" "start" "-a" "3c0010d1dfdba2eab041b48dbe99bdcf325e3d52a9ea9bf2ff87ab1d465f44fd", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/main.rs:101:15
[INFO] [stderr]     |
[INFO] [stderr] 101 |     Operation(Operation),
[INFO] [stderr]     |     --------- ^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[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 -     Operation(Operation),
[INFO] [stderr] 101 +     Operation(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]    --> src/main.rs:102:14
[INFO] [stderr]     |
[INFO] [stderr] 102 |     FuncCall(usize, Vec<usize>),
[INFO] [stderr]     |     -------- ^^^^^  ^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     fields in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]     |
[INFO] [stderr] 102 -     FuncCall(usize, Vec<usize>),
[INFO] [stderr] 102 +     FuncCall((), ()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/main.rs:103:15
[INFO] [stderr]     |
[INFO] [stderr] 103 |     GlobalVar(usize),
[INFO] [stderr]     |     --------- ^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Expression` has a derived impl for the trait `Debug`, but this is 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] 103 -     GlobalVar(usize),
[INFO] [stderr] 103 +     GlobalVar(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/main.rs:107:16
[INFO] [stderr]     |
[INFO] [stderr] 107 |     Expression(usize),
[INFO] [stderr]     |     ---------- ^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[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] 107 -     Expression(usize),
[INFO] [stderr] 107 +     Expression(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]    --> src/main.rs:108:16
[INFO] [stderr]     |
[INFO] [stderr] 108 |     Assignment(usize, usize),
[INFO] [stderr]     |     ---------- ^^^^^  ^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     fields in this variant
[INFO] [stderr]     |
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]     |
[INFO] [stderr] 108 -     Assignment(usize, usize),
[INFO] [stderr] 108 +     Assignment((), ()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/main.rs:109:11
[INFO] [stderr]     |
[INFO] [stderr] 109 |     Block(Vec<usize>),
[INFO] [stderr]     |     ----- ^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[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] 109 -     Block(Vec<usize>),
[INFO] [stderr] 109 +     Block(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]    --> src/main.rs:110:11
[INFO] [stderr]     |
[INFO] [stderr] 110 |     While(usize, usize),
[INFO] [stderr]     |     ----- ^^^^^  ^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     fields in this variant
[INFO] [stderr]     |
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]     |
[INFO] [stderr] 110 -     While(usize, usize),
[INFO] [stderr] 110 +     While((), ()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, and `2` are never read
[INFO] [stderr]    --> src/main.rs:111:8
[INFO] [stderr]     |
[INFO] [stderr] 111 |     If(usize, usize, Option<usize>),
[INFO] [stderr]     |     -- ^^^^^  ^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     fields in this variant
[INFO] [stderr]     |
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]     |
[INFO] [stderr] 111 -     If(usize, usize, Option<usize>),
[INFO] [stderr] 111 +     If((), (), ()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/main.rs:112:12
[INFO] [stderr]     |
[INFO] [stderr] 112 |     Return(Option<usize>),
[INFO] [stderr]     |     ------ ^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[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] 112 -     Return(Option<usize>),
[INFO] [stderr] 112 +     Return(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/main.rs:171:12
[INFO] [stderr]     |
[INFO] [stderr] 171 |     Expect(TokenKind),
[INFO] [stderr]     |     ------ ^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `ErrorKind` has a derived impl for the trait `Debug`, but this is 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] 171 -     Expect(TokenKind),
[INFO] [stderr] 171 +     Expect(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: methods `fmt_expr`, `fmt_datatype`, `expr_to_string`, and `datatype_to_string` are never used
[INFO] [stderr]    --> src/main.rs:178:8
[INFO] [stderr]     |
[INFO] [stderr] 177 | impl<'a> Parser<'a> {
[INFO] [stderr]     | ------------------- methods in this implementation
[INFO] [stderr] 178 |     fn fmt_expr(&self, n: usize, f: &mut String) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 |     fn fmt_datatype(&self, dt: usize, f: &mut String) {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 233 |     fn expr_to_string(&self, n: usize) -> String {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 238 |     fn datatype_to_string(&self, n: usize) -> String {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `string_value` is never used
[INFO] [stderr]    --> src/lexer.rs:122:12
[INFO] [stderr]     |
[INFO] [stderr] 82  | impl<'a> Lexer<'a> {
[INFO] [stderr]     | ------------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 122 |     pub fn string_value(&self, tok: &Token) -> String {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `fanta` (bin "fanta" test) generated 12 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fanta-20dbe8526c3e7b75)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3c0010d1dfdba2eab041b48dbe99bdcf325e3d52a9ea9bf2ff87ab1d465f44fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c0010d1dfdba2eab041b48dbe99bdcf325e3d52a9ea9bf2ff87ab1d465f44fd", kill_on_drop: false }`
[INFO] [stdout] 3c0010d1dfdba2eab041b48dbe99bdcf325e3d52a9ea9bf2ff87ab1d465f44fd
