[INFO] cloning repository https://github.com/tetsuo-cpp/charm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tetsuo-cpp/charm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetsuo-cpp%2Fcharm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetsuo-cpp%2Fcharm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f857bb35c53721e3c210d399d74a853eedb0e30
[INFO] testing tetsuo-cpp/charm against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetsuo-cpp%2Fcharm" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tetsuo-cpp/charm on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tetsuo-cpp/charm
[INFO] finished tweaking git repo https://github.com/tetsuo-cpp/charm
[INFO] tweaked toml for git repo https://github.com/tetsuo-cpp/charm written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/tetsuo-cpp/charm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6485467fa536a5706d78bf4e502cac3a73b148caf4bc93de348763cd330e6c07
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6485467fa536a5706d78bf4e502cac3a73b148caf4bc93de348763cd330e6c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6485467fa536a5706d78bf4e502cac3a73b148caf4bc93de348763cd330e6c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6485467fa536a5706d78bf4e502cac3a73b148caf4bc93de348763cd330e6c07", kill_on_drop: false }`
[INFO] [stdout] 6485467fa536a5706d78bf4e502cac3a73b148caf4bc93de348763cd330e6c07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0abc231424ef42fc2e9d89822ad02f46fe4151e3309b6eec2f1b95bd80fe2aa2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0abc231424ef42fc2e9d89822ad02f46fe4151e3309b6eec2f1b95bd80fe2aa2", kill_on_drop: false }`
[INFO] [stderr]    Compiling charm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]    --> src/lib.rs:416:5
[INFO] [stdout]     |
[INFO] [stdout] 416 |     If(IfNode<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BinOp`
[INFO] [stdout]    --> src/lib.rs:418:5
[INFO] [stdout]     |
[INFO] [stdout] 418 |     BinOp(BinOpNode<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `condition`
[INFO] [stdout]    --> src/lib.rs:422:5
[INFO] [stdout]     |
[INFO] [stdout] 422 |     condition: Box<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `then_block`
[INFO] [stdout]    --> src/lib.rs:423:5
[INFO] [stdout]     |
[INFO] [stdout] 423 |     then_block: Vec<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `else_block`
[INFO] [stdout]    --> src/lib.rs:424:5
[INFO] [stdout]     |
[INFO] [stdout] 424 |     else_block: Vec<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/lib.rs:428:5
[INFO] [stdout]     |
[INFO] [stdout] 428 |     name: &'a [u8],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rhs`
[INFO] [stdout]    --> src/lib.rs:429:5
[INFO] [stdout]     |
[INFO] [stdout] 429 |     rhs: Box<Option<Ast<'a>>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `op`
[INFO] [stdout]    --> src/lib.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 433 |     op: Token<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lhs`
[INFO] [stdout]    --> src/lib.rs:434:5
[INFO] [stdout]     |
[INFO] [stdout] 434 |     lhs: Box<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rhs`
[INFO] [stdout]    --> src/lib.rs:435:5
[INFO] [stdout]     |
[INFO] [stdout] 435 |     rhs: Box<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_expr`
[INFO] [stdout]    --> src/lib.rs:488:8
[INFO] [stdout]     |
[INFO] [stdout] 488 |     fn parse_expr(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_addition`
[INFO] [stdout]    --> src/lib.rs:492:8
[INFO] [stdout]     |
[INFO] [stdout] 492 |     fn parse_addition(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_multiplication`
[INFO] [stdout]    --> src/lib.rs:510:8
[INFO] [stdout]     |
[INFO] [stdout] 510 |     fn parse_multiplication(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "0abc231424ef42fc2e9d89822ad02f46fe4151e3309b6eec2f1b95bd80fe2aa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0abc231424ef42fc2e9d89822ad02f46fe4151e3309b6eec2f1b95bd80fe2aa2", kill_on_drop: false }`
[INFO] [stdout] 0abc231424ef42fc2e9d89822ad02f46fe4151e3309b6eec2f1b95bd80fe2aa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb9969519e8744986dc395ee7457c175fd357ab8904218d5da3726486cc4ddb1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bb9969519e8744986dc395ee7457c175fd357ab8904218d5da3726486cc4ddb1", kill_on_drop: false }`
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]    --> src/lib.rs:416:5
[INFO] [stdout]     |
[INFO] [stdout] 416 |     If(IfNode<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling charm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `BinOp`
[INFO] [stdout]    --> src/lib.rs:418:5
[INFO] [stdout]     |
[INFO] [stdout] 418 |     BinOp(BinOpNode<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `condition`
[INFO] [stdout]    --> src/lib.rs:422:5
[INFO] [stdout]     |
[INFO] [stdout] 422 |     condition: Box<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `then_block`
[INFO] [stdout]    --> src/lib.rs:423:5
[INFO] [stdout]     |
[INFO] [stdout] 423 |     then_block: Vec<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `else_block`
[INFO] [stdout]    --> src/lib.rs:424:5
[INFO] [stdout]     |
[INFO] [stdout] 424 |     else_block: Vec<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/lib.rs:428:5
[INFO] [stdout]     |
[INFO] [stdout] 428 |     name: &'a [u8],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rhs`
[INFO] [stdout]    --> src/lib.rs:429:5
[INFO] [stdout]     |
[INFO] [stdout] 429 |     rhs: Box<Option<Ast<'a>>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `op`
[INFO] [stdout]    --> src/lib.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 433 |     op: Token<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lhs`
[INFO] [stdout]    --> src/lib.rs:434:5
[INFO] [stdout]     |
[INFO] [stdout] 434 |     lhs: Box<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rhs`
[INFO] [stdout]    --> src/lib.rs:435:5
[INFO] [stdout]     |
[INFO] [stdout] 435 |     rhs: Box<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_expr`
[INFO] [stdout]    --> src/lib.rs:488:8
[INFO] [stdout]     |
[INFO] [stdout] 488 |     fn parse_expr(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_addition`
[INFO] [stdout]    --> src/lib.rs:492:8
[INFO] [stdout]     |
[INFO] [stdout] 492 |     fn parse_addition(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_multiplication`
[INFO] [stdout]    --> src/lib.rs:510:8
[INFO] [stdout]     |
[INFO] [stdout] 510 |     fn parse_multiplication(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:402:13
[INFO] [stdout]     |
[INFO] [stdout] 402 |         let mut lexer = Lexer::new(source);
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]    --> src/lib.rs:400:8
[INFO] [stdout]     |
[INFO] [stdout] 400 |     fn parse<'a>(source: &'a str) -> Result<Vec<Box<Ast>>, Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]    --> src/lib.rs:416:5
[INFO] [stdout]     |
[INFO] [stdout] 416 |     If(IfNode<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BinOp`
[INFO] [stdout]    --> src/lib.rs:418:5
[INFO] [stdout]     |
[INFO] [stdout] 418 |     BinOp(BinOpNode<'a>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `condition`
[INFO] [stdout]    --> src/lib.rs:422:5
[INFO] [stdout]     |
[INFO] [stdout] 422 |     condition: Box<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `then_block`
[INFO] [stdout]    --> src/lib.rs:423:5
[INFO] [stdout]     |
[INFO] [stdout] 423 |     then_block: Vec<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `else_block`
[INFO] [stdout]    --> src/lib.rs:424:5
[INFO] [stdout]     |
[INFO] [stdout] 424 |     else_block: Vec<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/lib.rs:428:5
[INFO] [stdout]     |
[INFO] [stdout] 428 |     name: &'a [u8],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rhs`
[INFO] [stdout]    --> src/lib.rs:429:5
[INFO] [stdout]     |
[INFO] [stdout] 429 |     rhs: Box<Option<Ast<'a>>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `op`
[INFO] [stdout]    --> src/lib.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 433 |     op: Token<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lhs`
[INFO] [stdout]    --> src/lib.rs:434:5
[INFO] [stdout]     |
[INFO] [stdout] 434 |     lhs: Box<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rhs`
[INFO] [stdout]    --> src/lib.rs:435:5
[INFO] [stdout]     |
[INFO] [stdout] 435 |     rhs: Box<Ast<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_expr`
[INFO] [stdout]    --> src/lib.rs:488:8
[INFO] [stdout]     |
[INFO] [stdout] 488 |     fn parse_expr(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_addition`
[INFO] [stdout]    --> src/lib.rs:492:8
[INFO] [stdout]     |
[INFO] [stdout] 492 |     fn parse_addition(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_multiplication`
[INFO] [stdout]    --> src/lib.rs:510:8
[INFO] [stdout]     |
[INFO] [stdout] 510 |     fn parse_multiplication(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "bb9969519e8744986dc395ee7457c175fd357ab8904218d5da3726486cc4ddb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb9969519e8744986dc395ee7457c175fd357ab8904218d5da3726486cc4ddb1", kill_on_drop: false }`
[INFO] [stdout] bb9969519e8744986dc395ee7457c175fd357ab8904218d5da3726486cc4ddb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 81d042edfc1d81dbce55e0e9001d83e5d3a2eddf25714a099b80bc9549729170
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "81d042edfc1d81dbce55e0e9001d83e5d3a2eddf25714a099b80bc9549729170", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]    --> src/lib.rs:416:5
[INFO] [stderr]     |
[INFO] [stderr] 416 |     If(IfNode<'a>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BinOp`
[INFO] [stderr]    --> src/lib.rs:418:5
[INFO] [stderr]     |
[INFO] [stderr] 418 |     BinOp(BinOpNode<'a>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `condition`
[INFO] [stderr]    --> src/lib.rs:422:5
[INFO] [stderr]     |
[INFO] [stderr] 422 |     condition: Box<Ast<'a>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `then_block`
[INFO] [stderr]    --> src/lib.rs:423:5
[INFO] [stderr]     |
[INFO] [stderr] 423 |     then_block: Vec<Ast<'a>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `else_block`
[INFO] [stderr]    --> src/lib.rs:424:5
[INFO] [stderr]     |
[INFO] [stderr] 424 |     else_block: Vec<Ast<'a>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]    --> src/lib.rs:428:5
[INFO] [stderr]     |
[INFO] [stderr] 428 |     name: &'a [u8],
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rhs`
[INFO] [stderr]    --> src/lib.rs:429:5
[INFO] [stderr]     |
[INFO] [stderr] 429 |     rhs: Box<Option<Ast<'a>>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `op`
[INFO] [stderr]    --> src/lib.rs:433:5
[INFO] [stderr]     |
[INFO] [stderr] 433 |     op: Token<'a>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `lhs`
[INFO] [stderr]    --> src/lib.rs:434:5
[INFO] [stderr]     |
[INFO] [stderr] 434 |     lhs: Box<Ast<'a>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rhs`
[INFO] [stderr]    --> src/lib.rs:435:5
[INFO] [stderr]     |
[INFO] [stderr] 435 |     rhs: Box<Ast<'a>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_expr`
[INFO] [stderr]    --> src/lib.rs:488:8
[INFO] [stderr]     |
[INFO] [stderr] 488 |     fn parse_expr(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_addition`
[INFO] [stderr]    --> src/lib.rs:492:8
[INFO] [stderr]     |
[INFO] [stderr] 492 |     fn parse_addition(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse_multiplication`
[INFO] [stderr]    --> src/lib.rs:510:8
[INFO] [stderr]     |
[INFO] [stderr] 510 |     fn parse_multiplication(&mut self) -> Result<Box<Ast<'a>>, Box<dyn Error>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `charm` (lib) generated 13 warnings
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:402:13
[INFO] [stderr]     |
[INFO] [stderr] 402 |         let mut lexer = Lexer::new(source);
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]    --> src/lib.rs:400:8
[INFO] [stderr]     |
[INFO] [stderr] 400 |     fn parse<'a>(source: &'a str) -> Result<Vec<Box<Ast>>, Box<dyn Error>> {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]    --> src/lib.rs:416:5
[INFO] [stderr]     |
[INFO] [stderr] 416 |     If(IfNode<'a>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `charm` (lib test) generated 15 warnings (12 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/charm-13c9c8aad4441990)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_lex_identifier ... ok
[INFO] [stdout] test tests::test_lex_number ... ok
[INFO] [stdout] test tests::test_lex_kw ... ok
[INFO] [stdout] test tests::test_lex_identifiers_with_digits ... ok
[INFO] [stdout] test tests::test_lex_sym ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/charm-45a46c2e08cc0a1e)
[INFO] [stderr]    Doc-tests charm
[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" "81d042edfc1d81dbce55e0e9001d83e5d3a2eddf25714a099b80bc9549729170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81d042edfc1d81dbce55e0e9001d83e5d3a2eddf25714a099b80bc9549729170", kill_on_drop: false }`
[INFO] [stdout] 81d042edfc1d81dbce55e0e9001d83e5d3a2eddf25714a099b80bc9549729170