[INFO] fetching crate z3_ref 0.1.4...
[INFO] checking z3_ref-0.1.4 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate z3_ref 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate z3_ref 0.1.4 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate z3_ref 0.1.4
[INFO] finished tweaking crates.io crate z3_ref 0.1.4
[INFO] tweaked toml for crates.io crate z3_ref 0.1.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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-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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6759d2a00a442b0e6a6eafc2f88760f608fd99880b27c64f2eff39a750781756
[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" "6759d2a00a442b0e6a6eafc2f88760f608fd99880b27c64f2eff39a750781756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6759d2a00a442b0e6a6eafc2f88760f608fd99880b27c64f2eff39a750781756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6759d2a00a442b0e6a6eafc2f88760f608fd99880b27c64f2eff39a750781756", kill_on_drop: false }`
[INFO] [stdout] 6759d2a00a442b0e6a6eafc2f88760f608fd99880b27c64f2eff39a750781756
[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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--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] 7b4ca4d548499aa36e408208b52440b72797b9589f2906d679a2b4765f7a43a3
[INFO] running `Command { std: "docker" "start" "-a" "7b4ca4d548499aa36e408208b52440b72797b9589f2906d679a2b4765f7a43a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bindgen v0.40.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v0.3.5
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling clang-sys v0.23.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling cexpr v0.2.3
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling z3_ref v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0061]: this function takes 4 arguments but 2 arguments were supplied
[INFO] [stdout]    --> src/lib.rs:298:24
[INFO] [stdout]     |
[INFO] [stdout] 298 |         unsafe { match z::Z3_optimize_check(self.ctx(), self.solver()) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^ ----------  ------------- supplied 2 arguments
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        expected 4 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/z3_ref-f8703fdd3f8e28d1/out/bindings.rs:3:125379
[INFO] [stdout]     |
[INFO] [stdout] 3   | ... : Z3_context , d : Z3_optimize ) ; } extern "C" { pub fn Z3_optimize_check ( c : Z3_context , o : Z3_optimize , num_assumptions : :: ...
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `z3_ref`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0061]: this function takes 4 arguments but 2 arguments were supplied
[INFO] [stdout]    --> src/lib.rs:298:24
[INFO] [stdout]     |
[INFO] [stdout] 298 |         unsafe { match z::Z3_optimize_check(self.ctx(), self.solver()) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^ ----------  ------------- supplied 2 arguments
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        expected 4 arguments
[INFO] [stdout]     |
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/z3_ref-f8703fdd3f8e28d1/out/bindings.rs:3:125379
[INFO] [stdout]     |
[INFO] [stdout] 3   | ... : Z3_context , d : Z3_optimize ) ; } extern "C" { pub fn Z3_optimize_check ( c : Z3_context , o : Z3_optimize , num_assumptions : :: ...
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7b4ca4d548499aa36e408208b52440b72797b9589f2906d679a2b4765f7a43a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b4ca4d548499aa36e408208b52440b72797b9589f2906d679a2b4765f7a43a3", kill_on_drop: false }`
[INFO] [stdout] 7b4ca4d548499aa36e408208b52440b72797b9589f2906d679a2b4765f7a43a3