[INFO] fetching crate isla 0.2.0...
[INFO] testing isla-0.2.0 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] extracting crate isla 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate isla 0.2.0
[INFO] finished tweaking crates.io crate isla 0.2.0
[INFO] tweaked toml for crates.io crate isla 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate isla 0.2.0 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate isla 0.2.0 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbf8408ff99199db1e5f824238fa2bd656e788116ade2fc0ca6d493d0e0941fe
[INFO] running `Command { std: "docker" "start" "-a" "dbf8408ff99199db1e5f824238fa2bd656e788116ade2fc0ca6d493d0e0941fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbf8408ff99199db1e5f824238fa2bd656e788116ade2fc0ca6d493d0e0941fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbf8408ff99199db1e5f824238fa2bd656e788116ade2fc0ca6d493d0e0941fe", kill_on_drop: false }`
[INFO] [stdout] dbf8408ff99199db1e5f824238fa2bd656e788116ade2fc0ca6d493d0e0941fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 814777bd2a9a059a569709d044549923780e07f46aeacdf77083ff24f0f8b5c7
[INFO] running `Command { std: "docker" "start" "-a" "814777bd2a9a059a569709d044549923780e07f46aeacdf77083ff24f0f8b5c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling once_cell v1.7.0
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling pico-args v0.3.4
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling z3-sys v0.5.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling isla v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling rand v0.7.3
[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 lalrpop-util v0.19.4
[INFO] [stderr]    Compiling lalrpop v0.19.4
[INFO] [stderr]    Compiling scroll_derive v0.10.5
[INFO] [stderr]    Compiling scroll v0.10.2
[INFO] [stderr]    Compiling goblin v0.2.3
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling bincode v1.3.2
[INFO] [stderr]    Compiling isla-cat v0.2.0
[INFO] [stderr]    Compiling isla-lib v0.2.0
[INFO] [stderr]    Compiling isla-axiomatic v0.2.0
[INFO] [stdout] warning: fields `num_threads` and `isa_config` are never read
[INFO] [stdout]    --> src/opts.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct CommonOpts<'ir, B> {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 104 |     pub num_threads: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub isa_config: ISAConfig<B>,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `isla` (bin "isla-preprocess"); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/733b47ea4b1b86216f14ef56e49440c33933f230/bin/rustc --crate-name isla_preprocess --edition=2018 src/preprocess.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=a5488f3546dd7413 -C extra-filename=-5ea211f3f014e1c9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-77fe84e1b3e492ea.rlib --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-0a7fd79b62ef3a61.rlib --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-b54e378189dbd5d3.rlib --extern isla=/opt/rustwide/target/debug/deps/libisla-02a522a18df6bdc4.rlib --extern isla_axiomatic=/opt/rustwide/target/debug/deps/libisla_axiomatic-9e5b02e1a3068cb4.rlib --extern isla_cat=/opt/rustwide/target/debug/deps/libisla_cat-84c34b5bef6f91a2.rlib --extern isla_lib=/opt/rustwide/target/debug/deps/libisla_lib-8c515a351d4eac29.rlib --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-6422e42b66c1106c.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-d0ca9ba05998addf.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-c878cfd76eda4fca.rlib --extern sha2=/opt/rustwide/target/debug/deps/libsha2-b324ce05b1a8cd2b.rlib --extern toml=/opt/rustwide/target/debug/deps/libtoml-2c7fb79a2ef8cbad.rlib --cap-lints=forbid -Copt-level=3 -L . -L .. -L ..` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "814777bd2a9a059a569709d044549923780e07f46aeacdf77083ff24f0f8b5c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "814777bd2a9a059a569709d044549923780e07f46aeacdf77083ff24f0f8b5c7", kill_on_drop: false }`
[INFO] [stdout] 814777bd2a9a059a569709d044549923780e07f46aeacdf77083ff24f0f8b5c7