[INFO] fetching crate isla 0.1.0...
[INFO] checking isla-0.1.0 against beta for pr-78714
[INFO] extracting crate isla 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate isla 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-14/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" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", 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] 186fbab00f328a36b8c6d0f8c3c37456c18f9f54430eaf82f1bba117fceb815f
[INFO] running `Command { std: "docker" "start" "-a" "186fbab00f328a36b8c6d0f8c3c37456c18f9f54430eaf82f1bba117fceb815f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "186fbab00f328a36b8c6d0f8c3c37456c18f9f54430eaf82f1bba117fceb815f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "186fbab00f328a36b8c6d0f8c3c37456c18f9f54430eaf82f1bba117fceb815f", kill_on_drop: false }`
[INFO] [stdout] 186fbab00f328a36b8c6d0f8c3c37456c18f9f54430eaf82f1bba117fceb815f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22943a789e2d627f6c95deadb08db4e700a7b0cb2f6095ca3976430c63884529
[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" "22943a789e2d627f6c95deadb08db4e700a7b0cb2f6095ca3976430c63884529", kill_on_drop: false }`
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling lalrpop-util v0.19.0
[INFO] [stderr]     Checking z3-sys v0.5.0
[INFO] [stderr]    Compiling isla v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[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]     Checking scroll v0.10.1
[INFO] [stderr]     Checking goblin v0.2.1
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking toml v0.5.6
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "22943a789e2d627f6c95deadb08db4e700a7b0cb2f6095ca3976430c63884529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22943a789e2d627f6c95deadb08db4e700a7b0cb2f6095ca3976430c63884529", kill_on_drop: false }`
[INFO] [stdout] 22943a789e2d627f6c95deadb08db4e700a7b0cb2f6095ca3976430c63884529