[INFO] fetching crate polyhorn-ios 0.4.0...
[INFO] checking polyhorn-ios-0.4.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate polyhorn-ios 0.4.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate polyhorn-ios 0.4.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polyhorn-ios 0.4.0
[INFO] finished tweaking crates.io crate polyhorn-ios 0.4.0
[INFO] tweaked toml for crates.io crate polyhorn-ios 0.4.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] 3f2ac03f8f117c7b8137ed09feff287214d9ab40fd53528d5917df02cb391eae
[INFO] running `Command { std: "docker" "start" "-a" "3f2ac03f8f117c7b8137ed09feff287214d9ab40fd53528d5917df02cb391eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f2ac03f8f117c7b8137ed09feff287214d9ab40fd53528d5917df02cb391eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f2ac03f8f117c7b8137ed09feff287214d9ab40fd53528d5917df02cb391eae", kill_on_drop: false }`
[INFO] [stdout] 3f2ac03f8f117c7b8137ed09feff287214d9ab40fd53528d5917df02cb391eae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] b4bae62a8a1d9544165b3c07f7ac6645d7f2c0aefba8c448772facd6d5e085a6
[INFO] running `Command { std: "docker" "start" "-a" "b4bae62a8a1d9544165b3c07f7ac6645d7f2c0aefba8c448772facd6d5e085a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling futures-sink v0.3.12
[INFO] [stderr]    Compiling futures-core v0.3.12
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]    Compiling futures-io v0.3.12
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling float-cmp v0.5.3
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling xmlparser v0.13.3
[INFO] [stderr]    Compiling pico-args v0.3.4
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]    Compiling xmlwriter v0.1.0
[INFO] [stderr]    Compiling rctree v0.3.3
[INFO] [stderr]    Compiling strum v0.19.5
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]     Checking dispatch v0.2.0
[INFO] [stderr]     Checking as-any v0.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling futures-task v0.3.12
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]    Compiling data-url v0.1.0
[INFO] [stderr]    Compiling svgtypes v0.5.0
[INFO] [stderr]     Checking kurbo v0.6.3
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling roxmltree v0.13.1
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling clang-sys v1.0.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling simplecss v0.2.0
[INFO] [stderr]    Compiling polyhorn-macros v0.4.0
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling polyhorn-ios-sys v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking usvg v0.11.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling strum_macros v0.19.4
[INFO] [stderr]    Compiling smart-default v0.6.0
[INFO] [stderr]    Compiling futures-util v0.3.12
[INFO] [stderr]    Compiling casco v0.4.0
[INFO] [stderr]    Compiling polyhorn-yoga v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking polyhorn-core v0.4.0
[INFO] [stderr]     Checking polyhorn-ui v0.4.0
[INFO] [stderr]    Compiling polyhorn-ui-macros v0.4.0
[INFO] [stderr]     Checking polyhorn-ios v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 38s
[INFO] running `Command { std: "docker" "inspect" "b4bae62a8a1d9544165b3c07f7ac6645d7f2c0aefba8c448772facd6d5e085a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4bae62a8a1d9544165b3c07f7ac6645d7f2c0aefba8c448772facd6d5e085a6", kill_on_drop: false }`
[INFO] [stdout] b4bae62a8a1d9544165b3c07f7ac6645d7f2c0aefba8c448772facd6d5e085a6