[INFO] fetching crate libyaml 0.1.0...
[INFO] checking libyaml-0.1.0 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate libyaml 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate libyaml 0.1.0 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 libyaml 0.1.0
[INFO] finished tweaking crates.io crate libyaml 0.1.0
[INFO] tweaked toml for crates.io crate libyaml 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate libyaml 0.1.0 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 libyaml-sys v0.1.0
[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: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] cd9f3f5ee2c3250ed802dad13e5ba99773efa51ca0e97bfbe6c6d04aab09b018
[INFO] running `Command { std: "docker" "start" "-a" "cd9f3f5ee2c3250ed802dad13e5ba99773efa51ca0e97bfbe6c6d04aab09b018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd9f3f5ee2c3250ed802dad13e5ba99773efa51ca0e97bfbe6c6d04aab09b018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd9f3f5ee2c3250ed802dad13e5ba99773efa51ca0e97bfbe6c6d04aab09b018", kill_on_drop: false }`
[INFO] [stdout] cd9f3f5ee2c3250ed802dad13e5ba99773efa51ca0e97bfbe6c6d04aab09b018
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb45de8bb922b4f9f8a1ee249890997c5cf09b1ceea1acd10fa8314523b4961c
[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" "eb45de8bb922b4f9f8a1ee249890997c5cf09b1ceea1acd10fa8314523b4961c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libyaml-sys v0.1.0
[INFO] [stderr]     Checking libc v0.2.62
[INFO] [stderr]     Checking libyaml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/emitter.rs:84:1
[INFO] [stdout]    |
[INFO] [stdout] 84 | / unsafe extern fn write_handler(
[INFO] [stdout] 85 | |     data: *mut raw::c_void,
[INFO] [stdout] 86 | |     buffer: *mut raw::c_uchar,
[INFO] [stdout] 87 | |     size: usize,
[INFO] [stdout] ...  |
[INFO] [stdout] 95 | |     if emitter.writer_error.is_none() { 1 } else { 0 }
[INFO] [stdout] 96 | | }
[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/parser.rs:92:1
[INFO] [stdout]     |
[INFO] [stdout] 92  | / unsafe extern fn read_handler(
[INFO] [stdout] 93  | |     data: *mut raw::c_void,
[INFO] [stdout] 94  | |     buffer: *mut raw::c_uchar,
[INFO] [stdout] 95  | |     size: usize,
[INFO] [stdout] ...   |
[INFO] [stdout] 111 | |     }
[INFO] [stdout] 112 | | }
[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/emitter.rs:84:1
[INFO] [stdout]    |
[INFO] [stdout] 84 | / unsafe extern fn write_handler(
[INFO] [stdout] 85 | |     data: *mut raw::c_void,
[INFO] [stdout] 86 | |     buffer: *mut raw::c_uchar,
[INFO] [stdout] 87 | |     size: usize,
[INFO] [stdout] ...  |
[INFO] [stdout] 95 | |     if emitter.writer_error.is_none() { 1 } else { 0 }
[INFO] [stdout] 96 | | }
[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/parser.rs:92:1
[INFO] [stdout]     |
[INFO] [stdout] 92  | / unsafe extern fn read_handler(
[INFO] [stdout] 93  | |     data: *mut raw::c_void,
[INFO] [stdout] 94  | |     buffer: *mut raw::c_uchar,
[INFO] [stdout] 95  | |     size: usize,
[INFO] [stdout] ...   |
[INFO] [stdout] 111 | |     }
[INFO] [stdout] 112 | | }
[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 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libyaml`.
[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 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "eb45de8bb922b4f9f8a1ee249890997c5cf09b1ceea1acd10fa8314523b4961c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb45de8bb922b4f9f8a1ee249890997c5cf09b1ceea1acd10fa8314523b4961c", kill_on_drop: false }`
[INFO] [stdout] eb45de8bb922b4f9f8a1ee249890997c5cf09b1ceea1acd10fa8314523b4961c