[INFO] cloning repository https://github.com/Jxspy/rust-qml
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jxspy/rust-qml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJxspy%2Frust-qml", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJxspy%2Frust-qml'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88bc0311a06ac60e4d7b8567c1d121206943fa03
[INFO] checking Jxspy/rust-qml against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJxspy%2Frust-qml" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jxspy/rust-qml on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jxspy/rust-qml
[INFO] finished tweaking git repo https://github.com/Jxspy/rust-qml
[INFO] tweaked toml for git repo https://github.com/Jxspy/rust-qml written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Jxspy/rust-qml already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/alexcrichton/pkg-config-rs`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 620a53b487ec17b697191f8da44857b475c436564e60194ccb7f2cc2d07d1383
[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" "620a53b487ec17b697191f8da44857b475c436564e60194ccb7f2cc2d07d1383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "620a53b487ec17b697191f8da44857b475c436564e60194ccb7f2cc2d07d1383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "620a53b487ec17b697191f8da44857b475c436564e60194ccb7f2cc2d07d1383", kill_on_drop: false }`
[INFO] [stdout] 620a53b487ec17b697191f8da44857b475c436564e60194ccb7f2cc2d07d1383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93c7330190952f86e9ea269d388e70328f9f55486b930c51e300a01f2a0d237d
[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" "93c7330190952f86e9ea269d388e70328f9f55486b930c51e300a01f2a0d237d", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.18 (https://github.com/alexcrichton/pkg-config-rs#7a442bed)
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling qmlrs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `QVariant`
[INFO] [stdout]  --> src/lib.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ffi::{QVariant, QrsEngine, QObject};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `QVariant`
[INFO] [stdout]  --> src/lib.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ffi::{QVariant, QrsEngine, QObject};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]    --> src/variant.rs:12:45
[INFO] [stdout]     |
[INFO] [stdout] 12  |   fn from_qvariant(arg: *const QVariant) -> Option<Self>;
[INFO] [stdout]     |                                             ^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]     |
[INFO] [stdout] 12  |   fn from_qvariant(arg: *const QVariant) -> Option<Self> where Self: Sized;
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `qmlrs`
[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[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]    --> src/variant.rs:12:45
[INFO] [stdout]     |
[INFO] [stdout] 12  |   fn from_qvariant(arg: *const QVariant) -> Option<Self>;
[INFO] [stdout]     |                                             ^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]     |
[INFO] [stdout] 12  |   fn from_qvariant(arg: *const QVariant) -> Option<Self> where Self: Sized;
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "93c7330190952f86e9ea269d388e70328f9f55486b930c51e300a01f2a0d237d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93c7330190952f86e9ea269d388e70328f9f55486b930c51e300a01f2a0d237d", kill_on_drop: false }`
[INFO] [stdout] 93c7330190952f86e9ea269d388e70328f9f55486b930c51e300a01f2a0d237d