[INFO] cloning repository https://github.com/yukno1/pku-compiler-dev
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yukno1/pku-compiler-dev" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukno1%2Fpku-compiler-dev", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukno1%2Fpku-compiler-dev'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5de5d22a5d5c7ecf5aa8c0fbc5d2553491c49f5
[INFO] checking yukno1/pku-compiler-dev against 011c518242557d21690f7936b5812318dc2fec47 for pr-159877
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukno1%2Fpku-compiler-dev" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yukno1/pku-compiler-dev
[INFO] finished tweaking git repo https://github.com/yukno1/pku-compiler-dev
[INFO] tweaked toml for git repo https://github.com/yukno1/pku-compiler-dev written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yukno1/pku-compiler-dev on toolchain 011c518242557d21690f7936b5812318dc2fec47
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yukno1/pku-compiler-dev 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" "+011c518242557d21690f7936b5812318dc2fec47" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking yukno1/pku-compiler-dev against 011c518242557d21690f7936b5812318dc2fec47 for pr-159877
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukno1%2Fpku-compiler-dev" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yukno1/pku-compiler-dev
[INFO] finished tweaking git repo https://github.com/yukno1/pku-compiler-dev
[INFO] tweaked toml for git repo https://github.com/yukno1/pku-compiler-dev written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yukno1/pku-compiler-dev on toolchain 011c518242557d21690f7936b5812318dc2fec47
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yukno1/pku-compiler-dev 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" "+011c518242557d21690f7936b5812318dc2fec47" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lalrpop-util v0.23.1
[INFO] [stderr]   Downloaded lalrpop v0.23.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:1fa6594d87c8fa7b311925a7a77a16f539833322d9dfba4ce891f211db2f90b1" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b8a7792ebd4cb4934e7561ea80893acb2dcad68caba5aceccba8c414fcba9e00
[INFO] running `Command { std: "docker" "start" "b8a7792ebd4cb4934e7561ea80893acb2dcad68caba5aceccba8c414fcba9e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8a7792ebd4cb4934e7561ea80893acb2dcad68caba5aceccba8c414fcba9e00", 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" "b8a7792ebd4cb4934e7561ea80893acb2dcad68caba5aceccba8c414fcba9e00" "/opt/rustwide/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8a7792ebd4cb4934e7561ea80893acb2dcad68caba5aceccba8c414fcba9e00", 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" "b8a7792ebd4cb4934e7561ea80893acb2dcad68caba5aceccba8c414fcba9e00" "/opt/rustwide/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.20.1
[INFO] [stderr]    Compiling memchr v2.8.1
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling siphasher v1.0.3
[INFO] [stderr]    Compiling lalrpop-util v0.23.1
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling indexmap v2.14.0
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling phf_shared v0.13.1
[INFO] [stderr]    Compiling either v1.16.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling log v0.4.30
[INFO] [stderr]    Compiling bit-vec v0.9.1
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling term v1.2.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling keccak v0.1.6
[INFO] [stderr]    Compiling string_cache v0.9.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling petgraph v0.8.3
[INFO] [stderr]    Compiling ena v0.14.4
[INFO] [stderr]    Compiling bit-set v0.9.1
[INFO] [stderr]    Compiling ascii-canvas v4.0.0
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling pico-args v0.5.0
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha3 v0.10.9
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling lalrpop v0.23.1
[INFO] [stderr]    Compiling SysY v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mode = args.next().unwrap();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let output = args.next().unwrap();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mode = args.next().unwrap();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let output = args.next().unwrap();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `func_def` is never read
[INFO] [stdout]  --> src/ast.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct CompUnit {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 3 |     pub func_def: FuncDef,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CompUnit` has a derived impl for the trait `Debug`, but this is 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: fields `func_type`, `ident`, and `block` are never read
[INFO] [stdout]   --> src/ast.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct FuncDef {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout]  8 |     pub func_type: FuncType,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]  9 |     pub ident: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 10 |     pub block: Block,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FuncDef` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stmt` is never read
[INFO] [stdout]   --> src/ast.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Block {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 20 |     pub stmt: Stmt,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num` is never read
[INFO] [stdout]   --> src/ast.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct Stmt {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 25 |     pub num: i32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stmt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]   --> src/ast.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub enum Number {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `func_def` is never read
[INFO] [stdout]  --> src/ast.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct CompUnit {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 3 |     pub func_def: FuncDef,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CompUnit` has a derived impl for the trait `Debug`, but this is 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: fields `func_type`, `ident`, and `block` are never read
[INFO] [stdout]   --> src/ast.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct FuncDef {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout]  8 |     pub func_type: FuncType,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]  9 |     pub ident: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 10 |     pub block: Block,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FuncDef` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stmt` is never read
[INFO] [stdout]   --> src/ast.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Block {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 20 |     pub stmt: Stmt,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Block` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num` is never read
[INFO] [stdout]   --> src/ast.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct Stmt {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 25 |     pub num: i32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stmt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]   --> src/ast.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub enum Number {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.96s
[INFO] running `Command { std: "docker" "inspect" "b8a7792ebd4cb4934e7561ea80893acb2dcad68caba5aceccba8c414fcba9e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8a7792ebd4cb4934e7561ea80893acb2dcad68caba5aceccba8c414fcba9e00", kill_on_drop: false }`
[INFO] [stdout] b8a7792ebd4cb4934e7561ea80893acb2dcad68caba5aceccba8c414fcba9e00
