[INFO] updating cached repository https://github.com/iemelyanov/simpleast
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 750a9a84df68ba8af63dbe3ad73ea2f6c45b3b89
[INFO] testing iemelyanov/simpleast against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiemelyanov%2Fsimpleast" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iemelyanov/simpleast on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/iemelyanov/simpleast
[INFO] finished tweaking git repo https://github.com/iemelyanov/simpleast
[INFO] tweaked toml for git repo https://github.com/iemelyanov/simpleast written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/iemelyanov/simpleast already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] d1ac2114e55c28b207f293dc14d20b53f2a50ebf98d721ed1923a731407bc4c9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d1ac2114e55c28b207f293dc14d20b53f2a50ebf98d721ed1923a731407bc4c9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling typed-arena v2.0.1
[INFO] [stderr]    Compiling simpleast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `tree`
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let tree = Expr::Binary {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_tree`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `BinOp`
[INFO] [stderr]  --> src/main.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 |     enum BinOp {
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Variable`
[INFO] [stderr]  --> src/main.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 |     enum Variable {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Expr`
[INFO] [stderr]   --> src/main.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 |     enum Expr {
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `play`
[INFO] [stderr]   --> src/main.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn play() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]   --> src/main.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         Add,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]   --> src/main.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         Sub,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]   --> src/main.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         Div,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]   --> src/main.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |         Add,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]    --> src/main.rs:258:9
[INFO] [stderr]     |
[INFO] [stderr] 258 |         String(String),
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 269 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]    --> src/main.rs:270:9
[INFO] [stderr]     |
[INFO] [stderr] 270 |         Sub,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]    --> src/main.rs:272:9
[INFO] [stderr]     |
[INFO] [stderr] 272 |         Div,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:277:9
[INFO] [stderr]     |
[INFO] [stderr] 277 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `repr`
[INFO] [stderr]    --> src/main.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         pub fn repr(&mut self, ast: &dyn Expr<String>) -> String {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:468:9
[INFO] [stderr]     |
[INFO] [stderr] 468 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]    --> src/main.rs:469:9
[INFO] [stderr]     |
[INFO] [stderr] 469 |         Sub,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]    --> src/main.rs:471:9
[INFO] [stderr]     |
[INFO] [stderr] 471 |         Div,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:476:9
[INFO] [stderr]     |
[INFO] [stderr] 476 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `"docker" "inspect" "d1ac2114e55c28b207f293dc14d20b53f2a50ebf98d721ed1923a731407bc4c9"`
[INFO] running `"docker" "rm" "-f" "d1ac2114e55c28b207f293dc14d20b53f2a50ebf98d721ed1923a731407bc4c9"`
[INFO] [stdout] d1ac2114e55c28b207f293dc14d20b53f2a50ebf98d721ed1923a731407bc4c9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fab55ba2968e52109eec61d879e5b5800052953bb40d1cc8f67c48639fcdb0e0
[INFO] running `"docker" "start" "-a" "fab55ba2968e52109eec61d879e5b5800052953bb40d1cc8f67c48639fcdb0e0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling simpleast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `tree`
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let tree = Expr::Binary {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_tree`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `BinOp`
[INFO] [stderr]  --> src/main.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 |     enum BinOp {
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Variable`
[INFO] [stderr]  --> src/main.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 |     enum Variable {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Expr`
[INFO] [stderr]   --> src/main.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 |     enum Expr {
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `play`
[INFO] [stderr]   --> src/main.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn play() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]   --> src/main.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         Add,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]   --> src/main.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         Sub,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]   --> src/main.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         Div,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]   --> src/main.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |         Add,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]    --> src/main.rs:258:9
[INFO] [stderr]     |
[INFO] [stderr] 258 |         String(String),
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 269 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]    --> src/main.rs:270:9
[INFO] [stderr]     |
[INFO] [stderr] 270 |         Sub,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]    --> src/main.rs:272:9
[INFO] [stderr]     |
[INFO] [stderr] 272 |         Div,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:277:9
[INFO] [stderr]     |
[INFO] [stderr] 277 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `repr`
[INFO] [stderr]    --> src/main.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         pub fn repr(&mut self, ast: &dyn Expr<String>) -> String {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:468:9
[INFO] [stderr]     |
[INFO] [stderr] 468 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]    --> src/main.rs:469:9
[INFO] [stderr]     |
[INFO] [stderr] 469 |         Sub,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]    --> src/main.rs:471:9
[INFO] [stderr]     |
[INFO] [stderr] 471 |         Div,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:476:9
[INFO] [stderr]     |
[INFO] [stderr] 476 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "fab55ba2968e52109eec61d879e5b5800052953bb40d1cc8f67c48639fcdb0e0"`
[INFO] running `"docker" "rm" "-f" "fab55ba2968e52109eec61d879e5b5800052953bb40d1cc8f67c48639fcdb0e0"`
[INFO] [stdout] fab55ba2968e52109eec61d879e5b5800052953bb40d1cc8f67c48639fcdb0e0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stdout] d23ae88eef374b546f3115c1f238a7f2ada9947e50ed4e6e13b0fecdf2c02d52
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d23ae88eef374b546f3115c1f238a7f2ada9947e50ed4e6e13b0fecdf2c02d52"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `tree`
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let tree = Expr::Binary {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_tree`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `BinOp`
[INFO] [stderr]  --> src/main.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 |     enum BinOp {
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Variable`
[INFO] [stderr]  --> src/main.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 |     enum Variable {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Expr`
[INFO] [stderr]   --> src/main.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 |     enum Expr {
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `play`
[INFO] [stderr]   --> src/main.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn play() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]   --> src/main.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         Add,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]   --> src/main.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         Sub,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]   --> src/main.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         Div,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]   --> src/main.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |         Add,
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]    --> src/main.rs:258:9
[INFO] [stderr]     |
[INFO] [stderr] 258 |         String(String),
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 269 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]    --> src/main.rs:270:9
[INFO] [stderr]     |
[INFO] [stderr] 270 |         Sub,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]    --> src/main.rs:272:9
[INFO] [stderr]     |
[INFO] [stderr] 272 |         Div,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:277:9
[INFO] [stderr]     |
[INFO] [stderr] 277 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `repr`
[INFO] [stderr]    --> src/main.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         pub fn repr(&mut self, ast: &dyn Expr<String>) -> String {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:468:9
[INFO] [stderr]     |
[INFO] [stderr] 468 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]    --> src/main.rs:469:9
[INFO] [stderr]     |
[INFO] [stderr] 469 |         Sub,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]    --> src/main.rs:471:9
[INFO] [stderr]     |
[INFO] [stderr] 471 |         Div,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]    --> src/main.rs:476:9
[INFO] [stderr]     |
[INFO] [stderr] 476 |         Add,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/simpleast-435ae0d01c1738cf
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d23ae88eef374b546f3115c1f238a7f2ada9947e50ed4e6e13b0fecdf2c02d52"`
[INFO] running `"docker" "rm" "-f" "d23ae88eef374b546f3115c1f238a7f2ada9947e50ed4e6e13b0fecdf2c02d52"`
[INFO] [stdout] d23ae88eef374b546f3115c1f238a7f2ada9947e50ed4e6e13b0fecdf2c02d52