[INFO] fetching crate mazzaroth-rs-derive 0.2.1...
[INFO] checking mazzaroth-rs-derive-0.2.1 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate mazzaroth-rs-derive 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mazzaroth-rs-derive 0.2.1 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mazzaroth-rs-derive 0.2.1
[INFO] finished tweaking crates.io crate mazzaroth-rs-derive 0.2.1
[INFO] tweaked toml for crates.io crate mazzaroth-rs-derive 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6d34fd6104410310d4de00fe62f5a03ffb8199bc22b5c00b363c9bb926f59b6
[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" "a6d34fd6104410310d4de00fe62f5a03ffb8199bc22b5c00b363c9bb926f59b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6d34fd6104410310d4de00fe62f5a03ffb8199bc22b5c00b363c9bb926f59b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6d34fd6104410310d4de00fe62f5a03ffb8199bc22b5c00b363c9bb926f59b6", kill_on_drop: false }`
[INFO] [stdout] a6d34fd6104410310d4de00fe62f5a03ffb8199bc22b5c00b363c9bb926f59b6
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d890813fda4c5db5d50865751b30c3eb477e595fc7b8bb9eb75d4cec55dab68
[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" "1d890813fda4c5db5d50865751b30c3eb477e595fc7b8bb9eb75d4cec55dab68", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]     Checking mazzaroth-rs-derive v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/json.rs:67:32
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/json.rs:67:32
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.69s
[INFO] running `Command { std: "docker" "inspect" "1d890813fda4c5db5d50865751b30c3eb477e595fc7b8bb9eb75d4cec55dab68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d890813fda4c5db5d50865751b30c3eb477e595fc7b8bb9eb75d4cec55dab68", kill_on_drop: false }`
[INFO] [stdout] 1d890813fda4c5db5d50865751b30c3eb477e595fc7b8bb9eb75d4cec55dab68