[INFO] cloning repository https://github.com/alan-j-hu/nonstandard-ml
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alan-j-hu/nonstandard-ml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falan-j-hu%2Fnonstandard-ml", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falan-j-hu%2Fnonstandard-ml'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6219eb3cf4a991ce1b7d8b7b7af61e09acb36f1e
[INFO] checking alan-j-hu/nonstandard-ml against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falan-j-hu%2Fnonstandard-ml" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alan-j-hu/nonstandard-ml on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alan-j-hu/nonstandard-ml
[INFO] finished tweaking git repo https://github.com/alan-j-hu/nonstandard-ml
[INFO] tweaked toml for git repo https://github.com/alan-j-hu/nonstandard-ml written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/alan-j-hu/nonstandard-ml 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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lalrpop-util v0.19.8
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[INFO] [stdout] 3a8faa3a6d99dfff43c9cb0caea0b470af5ec9ff0ededf3e59701bbbc1ba87a1
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[INFO] running `Command { std: "docker" "inspect" "3a8faa3a6d99dfff43c9cb0caea0b470af5ec9ff0ededf3e59701bbbc1ba87a1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling nonstandard-ml v0.1.0 (/opt/rustwide/workdir/core)
[INFO] [stdout] warning: field `funs` is never read
[INFO] [stdout]   --> core/src/bytecode.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Module {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 28 |     funs: Box<[Fun]>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `local_count`, `blocks`, and `stack_maps` are never read
[INFO] [stdout]   --> core/src/bytecode.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Fun {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] 32 |     local_count: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 33 |     blocks: Box<[Block]>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     stack_maps: Box<[StackMap]>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `instrs` is never read
[INFO] [stdout]   --> core/src/bytecode.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Block {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 38 |     instrs: Box<[Instr]>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `funs`, `string_lits`, and `string_pool` are never read
[INFO] [stdout]   --> core/src/bytecode/convert.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Context<'pool> {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 9  |     funs: Vec<Fun>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 10 |     fun_map: HashMap<FnName, FunIndex>,
[INFO] [stdout] 11 |     string_lits: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 12 |     string_pool: &'pool StringPool<'pool>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `blocks` is never read
[INFO] [stdout]   --> core/src/bytecode/convert.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct FnBuilder<'ssa> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     blocks: Vec<bytecode::Block>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> core/src/elab/typed.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Var<'a> {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 7 |     id: usize,
[INFO] [stdout] 8 |     name: &'a str,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Var` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `funs` is never read
[INFO] [stdout]   --> core/src/bytecode.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Module {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 28 |     funs: Box<[Fun]>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `local_count`, `blocks`, and `stack_maps` are never read
[INFO] [stdout]   --> core/src/bytecode.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Fun {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] 32 |     local_count: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 33 |     blocks: Box<[Block]>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     stack_maps: Box<[StackMap]>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `instrs` is never read
[INFO] [stdout]   --> core/src/bytecode.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Block {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 38 |     instrs: Box<[Instr]>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `funs`, `string_lits`, and `string_pool` are never read
[INFO] [stdout]   --> core/src/bytecode/convert.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Context<'pool> {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 9  |     funs: Vec<Fun>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 10 |     fun_map: HashMap<FnName, FunIndex>,
[INFO] [stdout] 11 |     string_lits: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 12 |     string_pool: &'pool StringPool<'pool>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `blocks` is never read
[INFO] [stdout]   --> core/src/bytecode/convert.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct FnBuilder<'ssa> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     blocks: Vec<bytecode::Block>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> core/src/elab/typed.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Var<'a> {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 7 |     id: usize,
[INFO] [stdout] 8 |     name: &'a str,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Var` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking mlc v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stdout] error[E0597]: `program` does not live long enough
[INFO] [stdout]   --> core/tests/main.rs:58:28
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let mut program = ssa::compile(&ssa, ret_addr, &cexp).unwrap();
[INFO] [stdout]    |         ----------- binding `program` declared here
[INFO] [stdout] 58 |     ssa::liveness::analyze(&mut program);
[INFO] [stdout]    |                            ^^^^^^^^^^^^ borrowed value does not live long enough
[INFO] [stdout] 59 | }
[INFO] [stdout]    | -
[INFO] [stdout]    | |
[INFO] [stdout]    | `program` dropped here while still borrowed
[INFO] [stdout]    | borrow might be used here, when `program` is dropped and runs the destructor for type `Program<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0597`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nonstandard-ml` (test "main") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3b93fa4c33aa5660d584d1cf6a32c7468a41416689c56c1c9fd484ab3e3f3494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b93fa4c33aa5660d584d1cf6a32c7468a41416689c56c1c9fd484ab3e3f3494", kill_on_drop: false }`
[INFO] [stdout] 3b93fa4c33aa5660d584d1cf6a32c7468a41416689c56c1c9fd484ab3e3f3494
