[INFO] cloning repository https://github.com/sledgehammervampire/lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sledgehammervampire/lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsledgehammervampire%2Flox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsledgehammervampire%2Flox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52791c2ebe32a372ffa18d9ce94e63a44cd1515f
[INFO] checking sledgehammervampire/lox against try#df1b9bf194c9183fb7c0604484171064069ce232 for pr-149195-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsledgehammervampire%2Flox" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sledgehammervampire/lox
[INFO] finished tweaking git repo https://github.com/sledgehammervampire/lox
[INFO] tweaked toml for git repo https://github.com/sledgehammervampire/lox written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sledgehammervampire/lox on toolchain df1b9bf194c9183fb7c0604484171064069ce232
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sledgehammervampire/lox 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" "+df1b9bf194c9183fb7c0604484171064069ce232" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97324da3d1327b91793d3dcdac6389af5c4f32febb8321538b19c672a742753a
[INFO] running `Command { std: "docker" "start" "-a" "97324da3d1327b91793d3dcdac6389af5c4f32febb8321538b19c672a742753a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97324da3d1327b91793d3dcdac6389af5c4f32febb8321538b19c672a742753a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97324da3d1327b91793d3dcdac6389af5c4f32febb8321538b19c672a742753a", kill_on_drop: false }`
[INFO] [stdout] 97324da3d1327b91793d3dcdac6389af5c4f32febb8321538b19c672a742753a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 898abefff270ffeba9b4616390e4ce0b5c15a1bdd6c1b07cc3e3f83f8e2fff15
[INFO] running `Command { std: "docker" "start" "-a" "898abefff270ffeba9b4616390e4ce0b5c15a1bdd6c1b07cc3e3f83f8e2fff15", kill_on_drop: false }`
[INFO] [stderr]     Checking lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `typ`, `lexeme`, and `line` are never read
[INFO] [stdout]    --> src/main.rs:233:5
[INFO] [stdout]     |
[INFO] [stdout] 232 | struct Token<'src> {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 233 |     typ: TokenType<'src>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 234 |     lexeme: &'src str,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 235 |     line: usize,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Token` has a derived impl for the trait `Debug`, but this is 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 `0` is never read
[INFO] [stdout]    --> src/main.rs:265:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |     Str(&'src str),
[INFO] [stdout]     |     --- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TokenType` 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] 265 -     Str(&'src str),
[INFO] [stdout] 265 +     Str(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:266:12
[INFO] [stdout]     |
[INFO] [stdout] 266 |     Number(f64),
[INFO] [stdout]     |     ------ ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TokenType` 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] 266 -     Number(f64),
[INFO] [stdout] 266 +     Number(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]    --> src/main.rs:264:5
[INFO] [stdout]     |
[INFO] [stdout] 239 | enum TokenType<'src> {
[INFO] [stdout]     |      --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 264 |     Ident,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 269 |     And,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 270 |     Class,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 271 |     Else,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 272 |     False,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 273 |     Fun,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 274 |     For,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 275 |     If,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 276 |     Nil,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 277 |     Or,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 278 |     Print,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 279 |     Return,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 280 |     Super,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 281 |     This,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 282 |     True,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 283 |     Var,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 284 |     While,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TokenType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn new(src: &str) -> Scanner {
[INFO] [stdout]    |                 ^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn new(src: &str) -> Scanner<'_> {
[INFO] [stdout]    |                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `typ`, `lexeme`, and `line` are never read
[INFO] [stdout]    --> src/main.rs:233:5
[INFO] [stdout]     |
[INFO] [stdout] 232 | struct Token<'src> {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 233 |     typ: TokenType<'src>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 234 |     lexeme: &'src str,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 235 |     line: usize,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Token` has a derived impl for the trait `Debug`, but this is 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 `0` is never read
[INFO] [stdout]    --> src/main.rs:265:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |     Str(&'src str),
[INFO] [stdout]     |     --- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TokenType` 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] 265 -     Str(&'src str),
[INFO] [stdout] 265 +     Str(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:266:12
[INFO] [stdout]     |
[INFO] [stdout] 266 |     Number(f64),
[INFO] [stdout]     |     ------ ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TokenType` 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] 266 -     Number(f64),
[INFO] [stdout] 266 +     Number(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]    --> src/main.rs:264:5
[INFO] [stdout]     |
[INFO] [stdout] 239 | enum TokenType<'src> {
[INFO] [stdout]     |      --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 264 |     Ident,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 269 |     And,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 270 |     Class,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 271 |     Else,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 272 |     False,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 273 |     Fun,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 274 |     For,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 275 |     If,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 276 |     Nil,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 277 |     Or,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 278 |     Print,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 279 |     Return,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 280 |     Super,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 281 |     This,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 282 |     True,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 283 |     Var,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 284 |     While,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TokenType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn new(src: &str) -> Scanner {
[INFO] [stdout]    |                 ^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn new(src: &str) -> Scanner<'_> {
[INFO] [stdout]    |                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "898abefff270ffeba9b4616390e4ce0b5c15a1bdd6c1b07cc3e3f83f8e2fff15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "898abefff270ffeba9b4616390e4ce0b5c15a1bdd6c1b07cc3e3f83f8e2fff15", kill_on_drop: false }`
[INFO] [stdout] 898abefff270ffeba9b4616390e4ce0b5c15a1bdd6c1b07cc3e3f83f8e2fff15
