[INFO] fetching crate libloading 0.6.3...
[INFO] checking libloading-0.6.3 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate libloading 0.6.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate libloading 0.6.3 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 libloading 0.6.3
[INFO] finished tweaking crates.io crate libloading 0.6.3
[INFO] tweaked toml for crates.io crate libloading 0.6.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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] 2cbb125473a30edbf7229908c00fcc73e2cb8853a521b9ed01eedd77995bb4b7
[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" "2cbb125473a30edbf7229908c00fcc73e2cb8853a521b9ed01eedd77995bb4b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cbb125473a30edbf7229908c00fcc73e2cb8853a521b9ed01eedd77995bb4b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cbb125473a30edbf7229908c00fcc73e2cb8853a521b9ed01eedd77995bb4b7", kill_on_drop: false }`
[INFO] [stdout] 2cbb125473a30edbf7229908c00fcc73e2cb8853a521b9ed01eedd77995bb4b7
[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] e51693a8a706b71e767342014c113564b2e312df1b694db06a406c21b6826e0e
[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" "e51693a8a706b71e767342014c113564b2e312df1b694db06a406c21b6826e0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stdout] error: extern declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/os/unix/mod.rs:390:1
[INFO] [stdout]     |
[INFO] [stdout] 390 | / extern {
[INFO] [stdout] 391 | |     fn dlopen(filename: *const raw::c_char, flags: raw::c_int) -> *mut raw::c_void;
[INFO] [stdout] 392 | |     fn dlclose(handle: *mut raw::c_void) -> raw::c_int;
[INFO] [stdout] 393 | |     fn dlsym(handle: *mut raw::c_void, symbol: *const raw::c_char) -> *mut raw::c_void;
[INFO] [stdout] 394 | |     fn dlerror() -> *mut raw::c_char;
[INFO] [stdout] 395 | |     fn dladdr(addr: *mut raw::c_void, info: *mut DlInfo) -> raw::c_int;
[INFO] [stdout] 396 | | }
[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/os/unix/mod.rs:390:1
[INFO] [stdout]     |
[INFO] [stdout] 390 | / extern {
[INFO] [stdout] 391 | |     fn dlopen(filename: *const raw::c_char, flags: raw::c_int) -> *mut raw::c_void;
[INFO] [stdout] 392 | |     fn dlclose(handle: *mut raw::c_void) -> raw::c_int;
[INFO] [stdout] 393 | |     fn dlsym(handle: *mut raw::c_void, symbol: *const raw::c_char) -> *mut raw::c_void;
[INFO] [stdout] 394 | |     fn dlerror() -> *mut raw::c_char;
[INFO] [stdout] 395 | |     fn dladdr(addr: *mut raw::c_void, info: *mut DlInfo) -> raw::c_int;
[INFO] [stdout] 396 | | }
[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] [stderr] error: could not compile `libloading`.
[INFO] [stdout] error: aborting due to previous error
[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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e51693a8a706b71e767342014c113564b2e312df1b694db06a406c21b6826e0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e51693a8a706b71e767342014c113564b2e312df1b694db06a406c21b6826e0e", kill_on_drop: false }`
[INFO] [stdout] e51693a8a706b71e767342014c113564b2e312df1b694db06a406c21b6826e0e