[INFO] cloning repository https://github.com/triptec/libffi-u
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/triptec/libffi-u" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriptec%2Flibffi-u", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriptec%2Flibffi-u'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 607066ec99e73f182cc471cd1fa952f2eecd9506
[INFO] checking triptec/libffi-u against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriptec%2Flibffi-u" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/triptec/libffi-u on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/triptec/libffi-u
[INFO] finished tweaking git repo https://github.com/triptec/libffi-u
[INFO] tweaked toml for git repo https://github.com/triptec/libffi-u written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/triptec/libffi-u already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded make-cmd v0.1.0
[INFO] [stderr]   Downloaded which v1.0.5
[INFO] [stderr]   Downloaded cexpr v0.2.3
[INFO] [stderr]   Downloaded clang-sys v0.21.2
[INFO] [stderr]   Downloaded bindgen v0.31.3
[INFO] [stderr]   Downloaded abort_on_panic v1.0.0
[INFO] [stderr]   Downloaded libffi v0.6.4
[INFO] [stderr]   Downloaded libffi-sys v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0476ce11a9d81ab745ac777c2a41861429431616d301578cfd20c6bf2c0b1ac6
[INFO] running `Command { std: "docker" "start" "-a" "0476ce11a9d81ab745ac777c2a41861429431616d301578cfd20c6bf2c0b1ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0476ce11a9d81ab745ac777c2a41861429431616d301578cfd20c6bf2c0b1ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0476ce11a9d81ab745ac777c2a41861429431616d301578cfd20c6bf2c0b1ac6", kill_on_drop: false }`
[INFO] [stdout] 0476ce11a9d81ab745ac777c2a41861429431616d301578cfd20c6bf2c0b1ac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83ecf54c4013770bc17b168d49d7bef690d0d36efd7e27fb35228d698faff224
[INFO] running `Command { std: "docker" "start" "-a" "83ecf54c4013770bc17b168d49d7bef690d0d36efd7e27fb35228d698faff224", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling bindgen v0.31.3
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling clang-sys v0.21.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling make-cmd v0.1.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]     Checking abort_on_panic v1.0.0
[INFO] [stderr]    Compiling cexpr v0.2.3
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling libffi-sys v0.6.3
[INFO] [stderr]     Checking libffi v0.6.4
[INFO] [stderr]     Checking libffi-amzn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 58.46s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v3.2.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "83ecf54c4013770bc17b168d49d7bef690d0d36efd7e27fb35228d698faff224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83ecf54c4013770bc17b168d49d7bef690d0d36efd7e27fb35228d698faff224", kill_on_drop: false }`
[INFO] [stdout] 83ecf54c4013770bc17b168d49d7bef690d0d36efd7e27fb35228d698faff224
[INFO] checking triptec/libffi-u against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriptec%2Flibffi-u" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/triptec/libffi-u on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/triptec/libffi-u
[INFO] finished tweaking git repo https://github.com/triptec/libffi-u
[INFO] tweaked toml for git repo https://github.com/triptec/libffi-u written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/triptec/libffi-u already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bdcd6d329233b3ccf3fd3f915366de8731f30fbb8ffcc08527cf446da8cb9618
[INFO] running `Command { std: "docker" "start" "-a" "bdcd6d329233b3ccf3fd3f915366de8731f30fbb8ffcc08527cf446da8cb9618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdcd6d329233b3ccf3fd3f915366de8731f30fbb8ffcc08527cf446da8cb9618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdcd6d329233b3ccf3fd3f915366de8731f30fbb8ffcc08527cf446da8cb9618", kill_on_drop: false }`
[INFO] [stdout] bdcd6d329233b3ccf3fd3f915366de8731f30fbb8ffcc08527cf446da8cb9618
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbbea9d4d23b8235d2f32c7f14f3182876421180e54b8836f1bc47425f2c5df4
[INFO] running `Command { std: "docker" "start" "-a" "fbbea9d4d23b8235d2f32c7f14f3182876421180e54b8836f1bc47425f2c5df4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling bindgen v0.31.3
[INFO] [stderr]    Compiling clang-sys v0.21.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling make-cmd v0.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking abort_on_panic v1.0.0
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling cexpr v0.2.3
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling libffi-sys v0.6.3
[INFO] [stderr]     Checking libffi v0.6.4
[INFO] [stderr]     Checking libffi-amzn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 58.01s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v3.2.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "fbbea9d4d23b8235d2f32c7f14f3182876421180e54b8836f1bc47425f2c5df4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbbea9d4d23b8235d2f32c7f14f3182876421180e54b8836f1bc47425f2c5df4", kill_on_drop: false }`
[INFO] [stdout] fbbea9d4d23b8235d2f32c7f14f3182876421180e54b8836f1bc47425f2c5df4