[INFO] cloning repository https://github.com/uwulasm/lang-template
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uwulasm/lang-template" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuwulasm%2Flang-template", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuwulasm%2Flang-template'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17d3186539a50589a050ad3865bc02f679d72613
[INFO] checking uwulasm/lang-template against master#61cc47e367d7be91e13bcd01e4e96e0e233d4f6d for pr-133502-21
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuwulasm%2Flang-template" "/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/uwulasm/lang-template
[INFO] finished tweaking git repo https://github.com/uwulasm/lang-template
[INFO] tweaked toml for git repo https://github.com/uwulasm/lang-template written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/uwulasm/lang-template on toolchain 61cc47e367d7be91e13bcd01e4e96e0e233d4f6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/uwulasm/lang-template 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" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded find-msvc-tools v0.1.0
[INFO] [stderr]   Downloaded ariadne v0.5.1
[INFO] [stderr]   Downloaded cc v1.2.35
[INFO] [stderr]   Downloaded chumsky v0.10.1
[INFO] [stderr]   Downloaded unicode-width v0.1.14
[INFO] [stderr]   Downloaded libc v0.2.175
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afffdf3bc12b013b44a1e41a7d579daceb1ada95039e1f4706f9bfcc950c9de1
[INFO] running `Command { std: "docker" "start" "-a" "afffdf3bc12b013b44a1e41a7d579daceb1ada95039e1f4706f9bfcc950c9de1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afffdf3bc12b013b44a1e41a7d579daceb1ada95039e1f4706f9bfcc950c9de1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afffdf3bc12b013b44a1e41a7d579daceb1ada95039e1f4706f9bfcc950c9de1", kill_on_drop: false }`
[INFO] [stdout] afffdf3bc12b013b44a1e41a7d579daceb1ada95039e1f4706f9bfcc950c9de1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71d0cca1dd56b3b5dc4781ccc9e1f3b52601c9636dd8e99cb83efd4813243b99
[INFO] running `Command { std: "docker" "start" "-a" "71d0cca1dd56b3b5dc4781ccc9e1f3b52601c9636dd8e99cb83efd4813243b99", kill_on_drop: false }`
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.0
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking equivalent v1.0.2
[INFO] [stderr]    Compiling chumsky v0.10.1
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]    Compiling cc v1.2.35
[INFO] [stderr]     Checking ariadne v0.5.1
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]    Compiling psm v0.1.26
[INFO] [stderr]    Compiling stacker v0.1.21
[INFO] [stderr]     Checking chumskytest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |             _ => unreachable!(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout]  50 |             Statement::Print(expr) => {
[INFO] [stdout]     |             ---------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  54 |             Statement::Expr(expr) => {
[INFO] [stdout]     |             --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  57 |             Statement::If(expr, block) => {
[INFO] [stdout]     |             -------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  70 |             Statement::While(expr, block) => {
[INFO] [stdout]     |             ----------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 102 |             _ => unreachable!(),
[INFO] [stdout]     |             ^ ...and 4 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: `x`
[INFO] [stdout]    --> src/main.rs:206:32
[INFO] [stdout]     |
[INFO] [stdout] 206 |             Value::Function(_, x) => unreachable!(),
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:215:32
[INFO] [stdout]     |
[INFO] [stdout] 215 |             Value::Function(_, x) => print!("function {{ ... }}"),
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `String` is never constructed
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Expr {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] 19 |     Number(u32),
[INFO] [stdout] 20 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are 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: unreachable pattern
[INFO] [stdout]    --> src/main.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |             _ => unreachable!(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout]  50 |             Statement::Print(expr) => {
[INFO] [stdout]     |             ---------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  54 |             Statement::Expr(expr) => {
[INFO] [stdout]     |             --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  57 |             Statement::If(expr, block) => {
[INFO] [stdout]     |             -------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout]  70 |             Statement::While(expr, block) => {
[INFO] [stdout]     |             ----------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 102 |             _ => unreachable!(),
[INFO] [stdout]     |             ^ ...and 4 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: `x`
[INFO] [stdout]    --> src/main.rs:206:32
[INFO] [stdout]     |
[INFO] [stdout] 206 |             Value::Function(_, x) => unreachable!(),
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:215:32
[INFO] [stdout]     |
[INFO] [stdout] 215 |             Value::Function(_, x) => print!("function {{ ... }}"),
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `String` is never constructed
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Expr {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] 19 |     Number(u32),
[INFO] [stdout] 20 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.57s
[INFO] running `Command { std: "docker" "inspect" "71d0cca1dd56b3b5dc4781ccc9e1f3b52601c9636dd8e99cb83efd4813243b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71d0cca1dd56b3b5dc4781ccc9e1f3b52601c9636dd8e99cb83efd4813243b99", kill_on_drop: false }`
[INFO] [stdout] 71d0cca1dd56b3b5dc4781ccc9e1f3b52601c9636dd8e99cb83efd4813243b99
