[INFO] cloning repository https://github.com/danielrs/rust-ffi-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danielrs/rust-ffi-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielrs%2Frust-ffi-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielrs%2Frust-ffi-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d679fb8a0c960d7de19b818a44879952483492bb
[INFO] checking danielrs/rust-ffi-example against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielrs%2Frust-ffi-example" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danielrs/rust-ffi-example on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danielrs/rust-ffi-example
[INFO] finished tweaking git repo https://github.com/danielrs/rust-ffi-example
[INFO] tweaked toml for git repo https://github.com/danielrs/rust-ffi-example written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/danielrs/rust-ffi-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "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] 6430c75620cfaeb868879ba7f0ca67c0227974c6ca1d8da1da3f1f507c35204f
[INFO] running `Command { std: "docker" "start" "-a" "6430c75620cfaeb868879ba7f0ca67c0227974c6ca1d8da1da3f1f507c35204f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6430c75620cfaeb868879ba7f0ca67c0227974c6ca1d8da1da3f1f507c35204f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6430c75620cfaeb868879ba7f0ca67c0227974c6ca1d8da1da3f1f507c35204f", kill_on_drop: false }`
[INFO] [stdout] 6430c75620cfaeb868879ba7f0ca67c0227974c6ca1d8da1da3f1f507c35204f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1b9ed13e78ab2717511ba720f616ae7acb71b3d7a5dd95b988a72446043b3dd
[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" "c1b9ed13e78ab2717511ba720f616ae7acb71b3d7a5dd95b988a72446043b3dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.45
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]    Compiling rust_ffi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/ffi.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / extern {
[INFO] [stdout] 5  | |     pub fn quicksort(
[INFO] [stdout] 6  | |         arr: *mut c_void,
[INFO] [stdout] 7  | |         begin: c_int,
[INFO] [stdout] ...  |
[INFO] [stdout] 11 | |     );
[INFO] [stdout] 12 | | }
[INFO] [stdout]    | |_^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(missing_abi)]` on by default
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/ffi.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |         cmp: extern fn(*const c_void, *const c_void) -> c_int
[INFO] [stdout]    |              ^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn sort_by(&mut self, compare: extern fn(&T, &T) -> c_int);
[INFO] [stdout]    |                                    ^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:16:36
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn sort_by(&mut self, compare: extern fn(&T, &T) -> c_int) {
[INFO] [stdout]    |                                    ^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/ffi.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / extern {
[INFO] [stdout] 5  | |     pub fn quicksort(
[INFO] [stdout] 6  | |         arr: *mut c_void,
[INFO] [stdout] 7  | |         begin: c_int,
[INFO] [stdout] ...  |
[INFO] [stdout] 11 | |     );
[INFO] [stdout] 12 | | }
[INFO] [stdout]    | |_^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(missing_abi)]` on by default
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/ffi.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |         cmp: extern fn(*const c_void, *const c_void) -> c_int
[INFO] [stdout]    |              ^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn sort_by(&mut self, compare: extern fn(&T, &T) -> c_int);
[INFO] [stdout]    |                                    ^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:16:36
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn sort_by(&mut self, compare: extern fn(&T, &T) -> c_int) {
[INFO] [stdout]    |                                    ^ ABI should be specified here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the default ABI is C
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_ffi`.
[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: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c1b9ed13e78ab2717511ba720f616ae7acb71b3d7a5dd95b988a72446043b3dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b9ed13e78ab2717511ba720f616ae7acb71b3d7a5dd95b988a72446043b3dd", kill_on_drop: false }`
[INFO] [stdout] c1b9ed13e78ab2717511ba720f616ae7acb71b3d7a5dd95b988a72446043b3dd