[INFO] fetching crate metl 0.0.0...
[INFO] checking metl-0.0.0 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate metl 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate metl 0.0.0 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metl 0.0.0
[INFO] removed path dependency metal-sys from crates.io crate metl 0.0.0
[INFO] finished tweaking crates.io crate metl 0.0.0
[INFO] tweaked toml for crates.io crate metl 0.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] 862b2d3026f19eebfa44eec643a30f700031d6c75ee3e3db2ac5c89286ad3996
[INFO] running `Command { std: "docker" "start" "-a" "862b2d3026f19eebfa44eec643a30f700031d6c75ee3e3db2ac5c89286ad3996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "862b2d3026f19eebfa44eec643a30f700031d6c75ee3e3db2ac5c89286ad3996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "862b2d3026f19eebfa44eec643a30f700031d6c75ee3e3db2ac5c89286ad3996", kill_on_drop: false }`
[INFO] [stdout] 862b2d3026f19eebfa44eec643a30f700031d6c75ee3e3db2ac5c89286ad3996
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf11a9564f83ddeaf4cfcd57b42afdec1737786043724cbf32032ae8639a72fd
[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" "bf11a9564f83ddeaf4cfcd57b42afdec1737786043724cbf32032ae8639a72fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling core-foundation-sys v0.2.3
[INFO] [stderr]    Compiling core-foundation-sys v0.8.2
[INFO] [stderr]     Checking serde v0.7.15
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking metal-sys v0.0.0
[INFO] [stderr]     Checking malloc_buf v0.0.6
[INFO] [stderr]     Checking objc v0.1.8
[INFO] [stdout] error[E0463]: can't find crate for `bitflags`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/metal-sys-0.0.0/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate bitflags;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `metal-sys`
[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[E0591]: can't transmute zero-sized type
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-0.1.8/src/message.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |         unsafe { mem::transmute(runtime::objc_msgSend) }
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: source type: unsafe extern "C" fn(*mut Object, Sel, ...) -> *mut Object {runtime::objc_msgSend}
[INFO] [stdout]    = note: target type: unsafe extern "C" fn(*mut Object, Sel, ...) -> R
[INFO] [stdout]    = help: cast with `as` to a pointer instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0591]: can't transmute zero-sized type
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-0.1.8/src/message.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |         unsafe { mem::transmute(runtime::objc_msgSend_stret) }
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: source type: unsafe extern "C" fn(*mut Object, Sel, ...) {runtime::objc_msgSend_stret}
[INFO] [stdout]    = note: target type: unsafe extern "C" fn(*mut Object, Sel, ...) -> R
[INFO] [stdout]    = help: cast with `as` to a pointer instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0591]: can't transmute zero-sized type
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-0.1.8/src/message.rs:61:18
[INFO] [stdout]    |
[INFO] [stdout] 61 |         unsafe { mem::transmute(runtime::objc_msgSendSuper) }
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: source type: unsafe extern "C" fn(*const Super, Sel, ...) -> *mut Object {runtime::objc_msgSendSuper}
[INFO] [stdout]    = note: target type: unsafe extern "C" fn(*const Super, Sel, ...) -> R
[INFO] [stdout]    = help: cast with `as` to a pointer instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0591]: can't transmute zero-sized type
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-0.1.8/src/message.rs:63:18
[INFO] [stdout]    |
[INFO] [stdout] 63 |         unsafe { mem::transmute(runtime::objc_msgSendSuper_stret) }
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: source type: unsafe extern "C" fn(*const Super, Sel, ...) {runtime::objc_msgSendSuper_stret}
[INFO] [stdout]    = note: target type: unsafe extern "C" fn(*const Super, Sel, ...) -> R
[INFO] [stdout]    = help: cast with `as` to a pointer instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0591`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bf11a9564f83ddeaf4cfcd57b42afdec1737786043724cbf32032ae8639a72fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf11a9564f83ddeaf4cfcd57b42afdec1737786043724cbf32032ae8639a72fd", kill_on_drop: false }`
[INFO] [stdout] bf11a9564f83ddeaf4cfcd57b42afdec1737786043724cbf32032ae8639a72fd