[INFO] cloning repository https://github.com/chioni16/simple-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chioni16/simple-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchioni16%2Fsimple-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchioni16%2Fsimple-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 548102cf3634ca595805562b4ddfebe4344428b5
[INFO] checking chioni16/simple-interpreter against try#163937523761cc0def32f1ba9ed63fdf65ad3478 for pr-156749
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchioni16%2Fsimple-interpreter" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chioni16/simple-interpreter
[INFO] finished tweaking git repo https://github.com/chioni16/simple-interpreter
[INFO] tweaked toml for git repo https://github.com/chioni16/simple-interpreter written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chioni16/simple-interpreter on toolchain 163937523761cc0def32f1ba9ed63fdf65ad3478
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chioni16/simple-interpreter 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" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 793c39c48e9534daaf09befdb78ee5174d70f9b897e4642c19209ddcb5f9dc5f
[INFO] running `Command { std: "docker" "start" "793c39c48e9534daaf09befdb78ee5174d70f9b897e4642c19209ddcb5f9dc5f", 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" "793c39c48e9534daaf09befdb78ee5174d70f9b897e4642c19209ddcb5f9dc5f" "/opt/rustwide/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "793c39c48e9534daaf09befdb78ee5174d70f9b897e4642c19209ddcb5f9dc5f", 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" "793c39c48e9534daaf09befdb78ee5174d70f9b897e4642c19209ddcb5f9dc5f" "/opt/rustwide/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking simple-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in CURRENT_RUSTC_VERSION
[INFO] [stdout]   = note: superseded by `deref_patterns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in CURRENT_RUSTC_VERSION
[INFO] [stdout]   = note: superseded by `deref_patterns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/emitter/mod.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 259 |             _ => todo!(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/emitter/mod.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |             ExpressionNode::Ident(token) => {
[INFO] [stdout]     |             ---------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 167 |             ExpressionNode::Int(token) => {
[INFO] [stdout]     |             -------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 175 |             ExpressionNode::Bool(token) => {
[INFO] [stdout]     |             --------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 184 |             ExpressionNode::UnaryOperator(operator, operand) => {
[INFO] [stdout]     |             ------------------------------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 259 |             _ => todo!(),
[INFO] [stdout]     |             ^ ...and 5 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/emitter/mod.rs:255:51
[INFO] [stdout]     |
[INFO] [stdout] 255 |             ExpressionNode::FunctionCall(_, func, args) => {
[INFO] [stdout]     |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple-interpreter` (lib) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/emitter/mod.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 259 |             _ => todo!(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/emitter/mod.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |             ExpressionNode::Ident(token) => {
[INFO] [stdout]     |             ---------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 167 |             ExpressionNode::Int(token) => {
[INFO] [stdout]     |             -------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 175 |             ExpressionNode::Bool(token) => {
[INFO] [stdout]     |             --------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 184 |             ExpressionNode::UnaryOperator(operator, operand) => {
[INFO] [stdout]     |             ------------------------------------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 259 |             _ => todo!(),
[INFO] [stdout]     |             ^ ...and 5 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/emitter/mod.rs:255:51
[INFO] [stdout]     |
[INFO] [stdout] 255 |             ExpressionNode::FunctionCall(_, func, args) => {
[INFO] [stdout]     |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple-interpreter` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "793c39c48e9534daaf09befdb78ee5174d70f9b897e4642c19209ddcb5f9dc5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "793c39c48e9534daaf09befdb78ee5174d70f9b897e4642c19209ddcb5f9dc5f", kill_on_drop: false }`
[INFO] [stdout] 793c39c48e9534daaf09befdb78ee5174d70f9b897e4642c19209ddcb5f9dc5f
