[INFO] cloning repository https://github.com/julyfun/r0
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/julyfun/r0" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulyfun%2Fr0", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulyfun%2Fr0'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5e425dd0d2ce259b36c67985f1d3debd61fe5c2
[INFO] checking julyfun/r0 against master#485ec3fbcc12fa14ef6596dabb125ad710499c9e for pr-157710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulyfun%2Fr0" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/julyfun/r0
[INFO] finished tweaking git repo https://github.com/julyfun/r0
[INFO] tweaked toml for git repo https://github.com/julyfun/r0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/julyfun/r0 on toolchain 485ec3fbcc12fa14ef6596dabb125ad710499c9e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/julyfun/r0 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" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.199
[INFO] [stderr]   Downloaded proc-macro2 v1.0.81
[INFO] [stderr]   Downloaded serde v1.0.199
[INFO] [stderr]   Downloaded syn v2.0.60
[INFO] [stderr]   Downloaded libc v0.2.153
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e2148671c59f91036bd7f4e199fbb436baf1ea2af8ffc31273d92035469d824a
[INFO] running `Command { std: "docker" "start" "e2148671c59f91036bd7f4e199fbb436baf1ea2af8ffc31273d92035469d824a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e2148671c59f91036bd7f4e199fbb436baf1ea2af8ffc31273d92035469d824a" "/opt/rustwide/cargo-home/bin/cargo" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2148671c59f91036bd7f4e199fbb436baf1ea2af8ffc31273d92035469d824a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e2148671c59f91036bd7f4e199fbb436baf1ea2af8ffc31273d92035469d824a" "/opt/rustwide/cargo-home/bin/cargo" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling serde v1.0.199
[INFO] [stderr]     Checking getrandom v0.2.14
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking r0 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `uniquify` is never used
[INFO] [stdout]   --> src/compiler.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn uniquify(expr: Expr) -> Expr {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `uniqify_expr` is never used
[INFO] [stdout]   --> src/compiler.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn uniqify_expr(expr: Expr, uniq_name_env: Rc<SymTable<String, String>>) -> Expr {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `anf_exp` is never used
[INFO] [stdout]   --> src/compiler.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn anf_exp(expr: Expr) -> Expr {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_atm` is never used
[INFO] [stdout]    --> src/compiler.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn is_atm(expr: &Expr) -> bool {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `readint` is never used
[INFO] [stdout]  --> src/helper.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn readint() -> i64 {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_digit` is never used
[INFO] [stdout]   --> src/helper.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn is_digit(x: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HasDigit` is never used
[INFO] [stdout]   --> src/helper.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | trait HasDigit {
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_valid_var_name` is never used
[INFO] [stdout]   --> src/helper.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn is_valid_var_name(s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gensym` is never used
[INFO] [stdout]   --> src/helper.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn gensym() -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `interp_exp` is never used
[INFO] [stdout]   --> src/interp.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn interp_exp(expr: Expr, env: Rc<SymTable<String, i64>>) -> i64 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `interp_r1` is never used
[INFO] [stdout]   --> src/interp.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn interp_r1(expr: Expr) -> i64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Sexpr` is never used
[INFO] [stdout]   --> src/parser.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Sexpr {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scan` is never used
[INFO] [stdout]   --> src/parser.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn scan(expr: &str) -> Sexpr {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_sexpr` is never used
[INFO] [stdout]   --> src/parser.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn parse_sexpr(sexpr: &Sexpr) -> Expr {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]    --> src/parser.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn parse(expr: &str) -> Expr {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]  --> src/syntax.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Expr {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SymTable` is never constructed
[INFO] [stdout]   --> src/syntax.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct SymTable<T, H>
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `lookup`, `bind`, and `extended` are never used
[INFO] [stdout]   --> src/syntax.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | / impl<T, H> SymTable<T, H>
[INFO] [stdout] 32 | | where
[INFO] [stdout] 33 | |     T: Eq + Hash,
[INFO] [stdout] 34 | |     H: Eq + Hash,
[INFO] [stdout]    | |_________________- associated items in this implementation
[INFO] [stdout] 35 |   {
[INFO] [stdout] 36 |       pub fn new() -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |       pub fn lookup(&self, x: &T) -> &H {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |       pub fn bind(&mut self, var: T, val: H) -> Option<H> {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |       pub fn extended(map: HashMap<T, H>, table: &Rc<SymTable<T, H>>) -> Self {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HasDigit` is never used
[INFO] [stdout]   --> src/helper.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | trait HasDigit {
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `bind` is never used
[INFO] [stdout]   --> src/syntax.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | / impl<T, H> SymTable<T, H>
[INFO] [stdout] 32 | | where
[INFO] [stdout] 33 | |     T: Eq + Hash,
[INFO] [stdout] 34 | |     H: Eq + Hash,
[INFO] [stdout]    | |_________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 55 |       pub fn bind(&mut self, var: T, val: H) -> Option<H> {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.62s
[INFO] running `Command { std: "docker" "inspect" "e2148671c59f91036bd7f4e199fbb436baf1ea2af8ffc31273d92035469d824a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2148671c59f91036bd7f4e199fbb436baf1ea2af8ffc31273d92035469d824a", kill_on_drop: false }`
[INFO] [stdout] e2148671c59f91036bd7f4e199fbb436baf1ea2af8ffc31273d92035469d824a
