[INFO] cloning repository https://github.com/marcin-kamionowski/ffi-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marcin-kamionowski/ffi-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcin-kamionowski%2Fffi-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcin-kamionowski%2Fffi-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 139bd3bd8f7f0d120283c45a23c410c309c649bc
[INFO] checking marcin-kamionowski/ffi-playground against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcin-kamionowski%2Fffi-playground" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marcin-kamionowski/ffi-playground on toolchain 9bfa31f632912180dc742809bcc51a97f2d7079d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/marcin-kamionowski/ffi-playground
[INFO] finished tweaking git repo https://github.com/marcin-kamionowski/ffi-playground
[INFO] tweaked toml for git repo https://github.com/marcin-kamionowski/ffi-playground written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/marcin-kamionowski/ffi-playground 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" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prettyplease v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 364e9c11ee37e83d7085db8f34822776311b953d809674463629be8151ce9048
[INFO] running `Command { std: "docker" "start" "-a" "364e9c11ee37e83d7085db8f34822776311b953d809674463629be8151ce9048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "364e9c11ee37e83d7085db8f34822776311b953d809674463629be8151ce9048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "364e9c11ee37e83d7085db8f34822776311b953d809674463629be8151ce9048", kill_on_drop: false }`
[INFO] [stdout] 364e9c11ee37e83d7085db8f34822776311b953d809674463629be8151ce9048
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 880ea4f9079154503b96ac7535101201b5efab290f2a0c2d6c9a72a65e63e21b
[INFO] running `Command { std: "docker" "start" "-a" "880ea4f9079154503b96ac7535101201b5efab290f2a0c2d6c9a72a65e63e21b", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling prettyplease v0.2.6
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling bindgen v0.65.1
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling which v4.4.0
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling regex v1.8.4
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling pingpong-sys v0.1.0 (/opt/rustwide/workdir/pingpong-sys)
[INFO] [stderr]     Checking pingpong v0.1.0 (/opt/rustwide/workdir/pingpong)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.28s
[INFO] running `Command { std: "docker" "inspect" "880ea4f9079154503b96ac7535101201b5efab290f2a0c2d6c9a72a65e63e21b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "880ea4f9079154503b96ac7535101201b5efab290f2a0c2d6c9a72a65e63e21b", kill_on_drop: false }`
[INFO] [stdout] 880ea4f9079154503b96ac7535101201b5efab290f2a0c2d6c9a72a65e63e21b
