[INFO] fetching crate libucl 0.2.3...
[INFO] checking libucl-0.2.3 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate libucl 0.2.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate libucl 0.2.3 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 crates.io crate libucl 0.2.3
[INFO] finished tweaking crates.io crate libucl 0.2.3
[INFO] tweaked toml for crates.io crate libucl 0.2.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate libucl 0.2.3 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libucl-bind v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] 2569830b337fa25df1ed1a5bf0c73249e7ea1da0746ad07d8058ea6a1be9fa92
[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" "2569830b337fa25df1ed1a5bf0c73249e7ea1da0746ad07d8058ea6a1be9fa92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2569830b337fa25df1ed1a5bf0c73249e7ea1da0746ad07d8058ea6a1be9fa92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2569830b337fa25df1ed1a5bf0c73249e7ea1da0746ad07d8058ea6a1be9fa92", kill_on_drop: false }`
[INFO] [stdout] 2569830b337fa25df1ed1a5bf0c73249e7ea1da0746ad07d8058ea6a1be9fa92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 7876dfd2b239dbd891cd263590a2465fcfb68d7e96d8216dc24085f47b1bf137
[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" "7876dfd2b239dbd891cd263590a2465fcfb68d7e96d8216dc24085f47b1bf137", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling libucl-bind v0.2.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking libucl v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/object/mod.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | / extern fn append_char(c: c_uchar, _num_chars: usize, ptr: *mut c_void) -> libc::c_int {
[INFO] [stdout] 28 | |     assert!(!ptr.is_null());
[INFO] [stdout] 29 | |
[INFO] [stdout] 30 | |     unsafe {
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | |     0
[INFO] [stdout] 36 | | }
[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/object/mod.rs:38:1
[INFO] [stdout]    |
[INFO] [stdout] 38 | / extern fn append_len(c: *const c_uchar, len: usize, ptr: *mut c_void) -> libc::c_int {
[INFO] [stdout] 39 | |     assert!(!c.is_null());
[INFO] [stdout] 40 | |     assert!(!ptr.is_null());
[INFO] [stdout] 41 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | |     0
[INFO] [stdout] 49 | | }
[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/object/mod.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / extern fn append_int(i: i64, ptr: *mut c_void) -> libc::c_int {
[INFO] [stdout] 52 | |     assert!(!ptr.is_null());
[INFO] [stdout] 53 | |
[INFO] [stdout] 54 | |     unsafe {
[INFO] [stdout] ...  |
[INFO] [stdout] 60 | |     0
[INFO] [stdout] 61 | | }
[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/object/mod.rs:63:1
[INFO] [stdout]    |
[INFO] [stdout] 63 | / extern fn append_double(d: c_double, ptr: *mut c_void) -> libc::c_int {
[INFO] [stdout] 64 | |     assert!(!ptr.is_null());
[INFO] [stdout] 65 | |
[INFO] [stdout] 66 | |     unsafe {
[INFO] [stdout] ...  |
[INFO] [stdout] 72 | |     0
[INFO] [stdout] 73 | | }
[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 `libucl`.
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7876dfd2b239dbd891cd263590a2465fcfb68d7e96d8216dc24085f47b1bf137", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7876dfd2b239dbd891cd263590a2465fcfb68d7e96d8216dc24085f47b1bf137", kill_on_drop: false }`
[INFO] [stdout] 7876dfd2b239dbd891cd263590a2465fcfb68d7e96d8216dc24085f47b1bf137