[INFO] fetching crate rustd_backend_llvm 0.2.0...
[INFO] checking rustd_backend_llvm-0.2.0 against master#49b6ac01d6f4c3da812039ae846407a20961aa4c for pr-154887
[INFO] extracting crate rustd_backend_llvm 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate rustd_backend_llvm 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rustd_backend_llvm 0.2.0
[INFO] tweaked toml for crates.io crate rustd_backend_llvm 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustd_backend_llvm 0.2.0 on toolchain 49b6ac01d6f4c3da812039ae846407a20961aa4c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustd_backend_llvm 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xcap v0.0.12
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[INFO] [stderr]   Downloaded rustd_runtime v0.2.0
[INFO] [stderr]   Downloaded sdl2-sys v0.37.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "fb4316d88e9d8e9d307335364178d318b5a4bc010e58ef28d20a55913fd14bfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb4316d88e9d8e9d307335364178d318b5a4bc010e58ef28d20a55913fd14bfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb4316d88e9d8e9d307335364178d318b5a4bc010e58ef28d20a55913fd14bfa", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3df41b106edc4ae592bb77b3a2395958806c747195f9eb375974153deb6c81a
[INFO] running `Command { std: "docker" "start" "-a" "e3df41b106edc4ae592bb77b3a2395958806c747195f9eb375974153deb6c81a", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `start_bytes`
[INFO] [stdout]     --> src/lib.rs:2088:21
[INFO] [stdout]      |
[INFO] [stdout] 2088 |                 let start_bytes = self.builder.build_int_mul(start_idx, elem_size_val, "start_bytes")?;
[INFO] [stdout]      |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_bytes`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start_bytes`
[INFO] [stdout]     --> src/lib.rs:2088:21
[INFO] [stdout]      |
[INFO] [stdout] 2088 |                 let start_bytes = self.builder.build_int_mul(start_idx, elem_size_val, "start_bytes")?;
[INFO] [stdout]      |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_bytes`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 59.49s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: xcap v0.0.12
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "e3df41b106edc4ae592bb77b3a2395958806c747195f9eb375974153deb6c81a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3df41b106edc4ae592bb77b3a2395958806c747195f9eb375974153deb6c81a", kill_on_drop: false }`
[INFO] [stdout] e3df41b106edc4ae592bb77b3a2395958806c747195f9eb375974153deb6c81a