[INFO] cloning repository https://github.com/SimonVitzethum/FastJavaC
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SimonVitzethum/FastJavaC" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonVitzethum%2FFastJavaC", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonVitzethum%2FFastJavaC'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 694b4f473cf1c26578d4e390a110f924d79ee8df
[INFO] checking SimonVitzethum/FastJavaC against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonVitzethum%2FFastJavaC" "/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/SimonVitzethum/FastJavaC
[INFO] finished tweaking git repo https://github.com/SimonVitzethum/FastJavaC
[INFO] tweaked toml for git repo https://github.com/SimonVitzethum/FastJavaC written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SimonVitzethum/FastJavaC on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SimonVitzethum/FastJavaC 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" "+52995a223f2919dd3e2e427231db90a257350ded" "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 SimonVitzethum/FastJavaC against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonVitzethum%2FFastJavaC" "/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/SimonVitzethum/FastJavaC
[INFO] finished tweaking git repo https://github.com/SimonVitzethum/FastJavaC
[INFO] tweaked toml for git repo https://github.com/SimonVitzethum/FastJavaC written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SimonVitzethum/FastJavaC on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SimonVitzethum/FastJavaC 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" "+52995a223f2919dd3e2e427231db90a257350ded" "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] 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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b9bb7d65eb6ded86f88124aefedbff92efa79392a3781241eabf2ff3e180dfd0
[INFO] running `Command { std: "docker" "start" "b9bb7d65eb6ded86f88124aefedbff92efa79392a3781241eabf2ff3e180dfd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9bb7d65eb6ded86f88124aefedbff92efa79392a3781241eabf2ff3e180dfd0", 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" "b9bb7d65eb6ded86f88124aefedbff92efa79392a3781241eabf2ff3e180dfd0" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9bb7d65eb6ded86f88124aefedbff92efa79392a3781241eabf2ff3e180dfd0", 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" "b9bb7d65eb6ded86f88124aefedbff92efa79392a3781241eabf2ff3e180dfd0" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking fastllvm-ir v0.1.0 (/opt/rustwide/workdir/crates/ir)
[INFO] [stderr]     Checking fastllvm-classfile v0.1.0 (/opt/rustwide/workdir/crates/classfile)
[INFO] [stderr]     Checking fastllvm-backend v0.1.0 (/opt/rustwide/workdir/crates/backend)
[INFO] [stderr]     Checking fastllvm-solver v0.1.0 (/opt/rustwide/workdir/crates/solver)
[INFO] [stdout] warning: function `skip_attributes` is never used
[INFO] [stdout]    --> crates/classfile/src/lib.rs:412:4
[INFO] [stdout]     |
[INFO] [stdout] 412 | fn skip_attributes(r: &mut Reader) -> Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip_attributes` is never used
[INFO] [stdout]    --> crates/classfile/src/lib.rs:412:4
[INFO] [stdout]     |
[INFO] [stdout] 412 | fn skip_attributes(r: &mut Reader) -> Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking fastllvm-frontend v0.1.0 (/opt/rustwide/workdir/crates/frontend)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]    --> crates/solver/src/lib.rs:624:28
[INFO] [stdout]     |
[INFO] [stdout] 624 |     use std::collections::{HashMap, HashSet};
[INFO] [stdout]     |                            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]    --> crates/solver/src/lib.rs:624:28
[INFO] [stdout]     |
[INFO] [stdout] 624 |     use std::collections::{HashMap, HashSet};
[INFO] [stdout]     |                            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> crates/solver/src/narrow.rs:162:17
[INFO] [stdout]     |
[INFO] [stdout] 162 |             let mut jl = |key: u32, r: Range, nl: &mut HashMap<u32, Range>| {
[INFO] [stdout]     |                 ----^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> crates/solver/src/narrow.rs:162:17
[INFO] [stdout]     |
[INFO] [stdout] 162 |             let mut jl = |key: u32, r: Range, nl: &mut HashMap<u32, Range>| {
[INFO] [stdout]     |                 ----^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> crates/backend/src/lib.rs:966:13
[INFO] [stdout]     |
[INFO] [stdout] 966 |         let mut meta_str = |s: &str, defs: &mut String, map: &mut BTreeMap<String, String>, n: &mut usize| -> String {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `nmN` should have a snake case name
[INFO] [stdout]     --> crates/frontend/src/lib.rs:2905:25
[INFO] [stdout]      |
[INFO] [stdout] 2905 |                     let nmN = ml.fresh(Ty::I32);
[INFO] [stdout]      |                         ^^^ help: convert the identifier to snake case: `nm_n`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `nmN` should have a snake case name
[INFO] [stdout]     --> crates/frontend/src/lib.rs:2981:25
[INFO] [stdout]      |
[INFO] [stdout] 2981 |                     let nmN = ml.fresh(Ty::I32);
[INFO] [stdout]      |                         ^^^ help: convert the identifier to snake case: `nm_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> crates/backend/src/lib.rs:966:13
[INFO] [stdout]     |
[INFO] [stdout] 966 |         let mut meta_str = |s: &str, defs: &mut String, map: &mut BTreeMap<String, String>, n: &mut usize| -> String {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `nmN` should have a snake case name
[INFO] [stdout]     --> crates/frontend/src/lib.rs:2905:25
[INFO] [stdout]      |
[INFO] [stdout] 2905 |                     let nmN = ml.fresh(Ty::I32);
[INFO] [stdout]      |                         ^^^ help: convert the identifier to snake case: `nm_n`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `nmN` should have a snake case name
[INFO] [stdout]     --> crates/frontend/src/lib.rs:2981:25
[INFO] [stdout]      |
[INFO] [stdout] 2981 |                     let nmN = ml.fresh(Ty::I32);
[INFO] [stdout]      |                         ^^^ help: convert the identifier to snake case: `nm_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VTABLE_TYPEDESC_SLOT` is never used
[INFO] [stdout]    --> crates/backend/src/lib.rs:290:7
[INFO] [stdout]     |
[INFO] [stdout] 290 | const VTABLE_TYPEDESC_SLOT: usize = 2;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `md_inv` is never read
[INFO] [stdout]     --> crates/backend/src/lib.rs:1643:5
[INFO] [stdout]      |
[INFO] [stdout] 1604 | struct FnEmitter<'a> {
[INFO] [stdout]      |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1643 |     md_inv: usize,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking fastllvm-driver v0.1.0 (/opt/rustwide/workdir/crates/driver)
[INFO] [stdout] warning: constant `VTABLE_TYPEDESC_SLOT` is never used
[INFO] [stdout]    --> crates/backend/src/lib.rs:290:7
[INFO] [stdout]     |
[INFO] [stdout] 290 | const VTABLE_TYPEDESC_SLOT: usize = 2;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `md_inv` is never read
[INFO] [stdout]     --> crates/backend/src/lib.rs:1643:5
[INFO] [stdout]      |
[INFO] [stdout] 1604 | struct FnEmitter<'a> {
[INFO] [stdout]      |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1643 |     md_inv: usize,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "b9bb7d65eb6ded86f88124aefedbff92efa79392a3781241eabf2ff3e180dfd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9bb7d65eb6ded86f88124aefedbff92efa79392a3781241eabf2ff3e180dfd0", kill_on_drop: false }`
[INFO] [stdout] b9bb7d65eb6ded86f88124aefedbff92efa79392a3781241eabf2ff3e180dfd0
