[INFO] cloning repository https://github.com/imkiva/mahiro-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imkiva/mahiro-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimkiva%2Fmahiro-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimkiva%2Fmahiro-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32b3e0f55cc22274df9f6f8aa1b9fcaf02cc370e
[INFO] testing imkiva/mahiro-rs against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimkiva%2Fmahiro-rs" "/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/imkiva/mahiro-rs on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/imkiva/mahiro-rs
[INFO] finished tweaking git repo https://github.com/imkiva/mahiro-rs
[INFO] tweaked toml for git repo https://github.com/imkiva/mahiro-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/imkiva/mahiro-rs 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lalrpop-util v0.19.1
[INFO] [stderr]   Downloaded lalrpop v0.19.1
[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_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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb32c4965372c812efe948a0d7ca41c0c8fc3ff58a725fc43b50831310027b65
[INFO] running `Command { std: "docker" "start" "-a" "bb32c4965372c812efe948a0d7ca41c0c8fc3ff58a725fc43b50831310027b65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb32c4965372c812efe948a0d7ca41c0c8fc3ff58a725fc43b50831310027b65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb32c4965372c812efe948a0d7ca41c0c8fc3ff58a725fc43b50831310027b65", kill_on_drop: false }`
[INFO] [stdout] bb32c4965372c812efe948a0d7ca41c0c8fc3ff58a725fc43b50831310027b65
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1d63a54ff071c9ff720cabdf597df17c14ae2000551c4a43386b183300d4f1c
[INFO] running `Command { std: "docker" "start" "-a" "a1d63a54ff071c9ff720cabdf597df17c14ae2000551c4a43386b183300d4f1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling vm v0.1.0 (/opt/rustwide/workdir/vm)
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling build_system v0.1.0 (/opt/rustwide/workdir/build_system)
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stdout] warning: fields `stack`, `frame`, `caller_regs`, and `code` are never read
[INFO] [stdout]   --> vm/src/vm.rs:15:3
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Executor<'a> {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 15 |   stack: &'a Stack,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 16 |   frame: &'a Frame,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 17 |   caller_regs: &'a CallerRegisters,
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 18 |   code: &'a Vec<Opcode>,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Executor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stack`, `frame`, `caller_regs`, and `exception` are never read
[INFO] [stdout]   --> vm/src/vm.rs:23:3
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct MahiroVM {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 23 |   stack: Stack,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 24 |   frame: VecDeque<Frame>,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 25 |   caller_regs: CallerRegisters,
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 26 |   exception: Option<Value>,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MahiroVM` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `push` and `pop` are never used
[INFO] [stdout]   --> vm/src/vm.rs:39:6
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl MahiroVM {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |   fn push(&mut self, v: Value) {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |   fn pop(&mut self) -> Value {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling lalrpop-util v0.19.1
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `regex` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/bin/rustc --crate-name regex --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-1.4.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="thread_local"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("aho-corasick", "default", "memchr", "pattern", "perf", "perf-cache", "perf-dfa", "perf-inline", "perf-literal", "std", "thread_local", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment", "unstable", "use_std"))' -C metadata=39899da118b58190 -C extra-filename=-f7a0ea22ef48e7be --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-e602d37effd9b372.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-0f589d2a6e764e59.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-b24ec857a29f684c.rmeta --extern thread_local=/opt/rustwide/target/debug/deps/libthread_local-2f3b94ab5dd251fa.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a1d63a54ff071c9ff720cabdf597df17c14ae2000551c4a43386b183300d4f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1d63a54ff071c9ff720cabdf597df17c14ae2000551c4a43386b183300d4f1c", kill_on_drop: false }`
[INFO] [stdout] a1d63a54ff071c9ff720cabdf597df17c14ae2000551c4a43386b183300d4f1c