[INFO] crate isla 0.1.0 is already in cache
[INFO] testing isla-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate isla 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate isla 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate isla 0.1.0
[INFO] finished tweaking crates.io crate isla 0.1.0
[INFO] tweaked toml for crates.io crate isla 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate isla 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 072123570f67938724eb727f2746b1861a3e3802620818c78d402154ef445227
[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" "072123570f67938724eb727f2746b1861a3e3802620818c78d402154ef445227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "072123570f67938724eb727f2746b1861a3e3802620818c78d402154ef445227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "072123570f67938724eb727f2746b1861a3e3802620818c78d402154ef445227", kill_on_drop: false }`
[INFO] [stdout] 072123570f67938724eb727f2746b1861a3e3802620818c78d402154ef445227
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f7be350ece6b146db1874bd7607f5503a390a5aad45329f6066c1b2f15868ce
[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" "0f7be350ece6b146db1874bd7607f5503a390a5aad45329f6066c1b2f15868ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling lalrpop-util v0.19.0
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling z3-sys v0.5.0
[INFO] [stderr]    Compiling isla v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]    Compiling scroll v0.10.1
[INFO] [stderr]    Compiling goblin v0.2.1
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling lalrpop v0.19.0
[INFO] [stderr]    Compiling isla-cat v0.1.0
[INFO] [stderr]    Compiling isla-lib v0.1.0
[INFO] [stderr]    Compiling isla-axiomatic v0.1.0
[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 --crate-type bin --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 -C metadata=f259baf57f731b2c -C extra-filename=-f259baf57f731b2c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-0f052ea09f8c5bc6.rlib --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-985263d5c9029118.rlib --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-668f3b1fd56ff5b8.rlib --extern isla=/opt/rustwide/target/debug/deps/libisla-abfc4f1ceb427fe5.rlib --extern isla_axiomatic=/opt/rustwide/target/debug/deps/libisla_axiomatic-746b634a0bae92b6.rlib --extern isla_cat=/opt/rustwide/target/debug/deps/libisla_cat-fffb206dfa53fdb7.rlib --extern isla_lib=/opt/rustwide/target/debug/deps/libisla_lib-2910914eeb729353.rlib --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-37b46ff9ed571c8d.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-e701db3171b08f1f.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-37c7fa4867cdb81f.rlib --extern sha2=/opt/rustwide/target/debug/deps/libsha2-4fdfde76bd3da3df.rlib --extern toml=/opt/rustwide/target/debug/deps/libtoml-be5f4572da82fbdd.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" "0f7be350ece6b146db1874bd7607f5503a390a5aad45329f6066c1b2f15868ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f7be350ece6b146db1874bd7607f5503a390a5aad45329f6066c1b2f15868ce", kill_on_drop: false }`
[INFO] [stdout] 0f7be350ece6b146db1874bd7607f5503a390a5aad45329f6066c1b2f15868ce