[INFO] fetching crate isla 0.2.0...
[INFO] testing isla-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate isla 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate isla 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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/source/Cargo.toml
[INFO] crate crates.io crate isla 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.3
[INFO] [stderr]   Downloaded ascii-canvas v2.0.0
[INFO] [stderr]   Downloaded bincode v1.3.2
[INFO] [stderr]   Downloaded isla-axiomatic v0.2.0
[INFO] [stderr]   Downloaded lalrpop-util v0.19.4
[INFO] [stderr]   Downloaded generator v0.6.24
[INFO] [stderr]   Downloaded loom v0.4.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.2
[INFO] [stderr]   Downloaded lalrpop v0.19.4
[INFO] [stderr]   Downloaded rustversion v1.0.4
[INFO] [stderr]   Downloaded string_cache v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca2f788e5b0d5b71522d5524d80a4e4c452d26b1e0c4bd991bcf1ef268ea7516
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ca2f788e5b0d5b71522d5524d80a4e4c452d26b1e0c4bd991bcf1ef268ea7516", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca2f788e5b0d5b71522d5524d80a4e4c452d26b1e0c4bd991bcf1ef268ea7516", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca2f788e5b0d5b71522d5524d80a4e4c452d26b1e0c4bd991bcf1ef268ea7516", kill_on_drop: false }`
[INFO] [stdout] ca2f788e5b0d5b71522d5524d80a4e4c452d26b1e0c4bd991bcf1ef268ea7516
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c63133ef4d632ff914b462b8b96c9c4fbc4b0333104f8dd295ed263d77319d22
[INFO] running `Command { std: "docker" "start" "-a" "c63133ef4d632ff914b462b8b96c9c4fbc4b0333104f8dd295ed263d77319d22", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling once_cell v1.7.0
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling pico-args v0.3.4
[INFO] [stderr]    Compiling z3-sys v0.5.0
[INFO] [stderr]    Compiling isla v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling lalrpop-util v0.19.4
[INFO] [stderr]    Compiling lalrpop v0.19.4
[INFO] [stderr]    Compiling serde_derive v1.0.123
[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 serde v1.0.123
[INFO] [stderr]    Compiling bincode v1.3.2
[INFO] [stderr]    Compiling toml v0.5.8
[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] [stderr] error: could not compile `isla`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name isla_axiomatic --edition=2018 src/axiomatic.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 -C metadata=fd2510fc40e58b24 -C extra-filename=-fd2510fc40e58b24 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-a164f2fa724f832b.rlib --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-5c9059981ecad0b6.rlib --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-c821aeba5fde98f5.rlib --extern isla=/opt/rustwide/target/debug/deps/libisla-c8e85b8739426c72.rlib --extern isla_axiomatic=/opt/rustwide/target/debug/deps/libisla_axiomatic-6d3e67c5015518db.rlib --extern isla_cat=/opt/rustwide/target/debug/deps/libisla_cat-72ab2245ea682992.rlib --extern isla_lib=/opt/rustwide/target/debug/deps/libisla_lib-0274cd1630822565.rlib --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-286424bd77fb8be2.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-fbe5ed6808748faf.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-c1b9c39e42a1edc4.rlib --extern sha2=/opt/rustwide/target/debug/deps/libsha2-cca6b1f310cd4672.rlib --extern toml=/opt/rustwide/target/debug/deps/libtoml-cc115d05397b2d98.rlib --cap-lints=warn -L . -L .. -L ..` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c63133ef4d632ff914b462b8b96c9c4fbc4b0333104f8dd295ed263d77319d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c63133ef4d632ff914b462b8b96c9c4fbc4b0333104f8dd295ed263d77319d22", kill_on_drop: false }`
[INFO] [stdout] c63133ef4d632ff914b462b8b96c9c4fbc4b0333104f8dd295ed263d77319d22