[INFO] fetching crate os_bootinfo 0.2.1...
[INFO] checking os_bootinfo-0.2.1 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate os_bootinfo 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate os_bootinfo 0.2.1 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate os_bootinfo 0.2.1
[INFO] finished tweaking crates.io crate os_bootinfo 0.2.1
[INFO] tweaked toml for crates.io crate os_bootinfo 0.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "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] 3c253f6bfd47666edb3c4e9306de5f528471aacd338c06fcce88d8bad386e5a7
[INFO] running `Command { std: "docker" "start" "-a" "3c253f6bfd47666edb3c4e9306de5f528471aacd338c06fcce88d8bad386e5a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c253f6bfd47666edb3c4e9306de5f528471aacd338c06fcce88d8bad386e5a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c253f6bfd47666edb3c4e9306de5f528471aacd338c06fcce88d8bad386e5a7", kill_on_drop: false }`
[INFO] [stdout] 3c253f6bfd47666edb3c4e9306de5f528471aacd338c06fcce88d8bad386e5a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03a6db3631f8195bf053070edd9f78520aa638f8a10d3ef1ee5f9a81c93c6a17
[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" "03a6db3631f8195bf053070edd9f78520aa638f8a10d3ef1ee5f9a81c93c6a17", kill_on_drop: false }`
[INFO] [stderr]     Checking os_bootinfo v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `_improper_ctypes_check` redeclared with a different signature
[INFO] [stdout]    --> src/lib.rs:37:5
[INFO] [stdout]     |
[INFO] [stdout] 37  |     fn _improper_ctypes_check(_boot_info: BootInfo);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/memory_map.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 205 |     fn _improper_ctypes_check(_boot_info: MemoryMap);
[INFO] [stdout]     |     ------------------------------------------------- `_improper_ctypes_check` previously declared here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(clashing_extern_declarations)]` on by default
[INFO] [stdout]     = note: expected `unsafe extern "C" fn(memory_map::MemoryMap)`
[INFO] [stdout]                found `unsafe extern "C" fn(BootInfo)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `_improper_ctypes_check` redeclared with a different signature
[INFO] [stdout]    --> src/lib.rs:37:5
[INFO] [stdout]     |
[INFO] [stdout] 37  |     fn _improper_ctypes_check(_boot_info: BootInfo);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/memory_map.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 205 |     fn _improper_ctypes_check(_boot_info: MemoryMap);
[INFO] [stdout]     |     ------------------------------------------------- `_improper_ctypes_check` previously declared here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(clashing_extern_declarations)]` on by default
[INFO] [stdout]     = note: expected `unsafe extern "C" fn(memory_map::MemoryMap)`
[INFO] [stdout]                found `unsafe extern "C" fn(BootInfo)`
[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 0.61s
[INFO] running `Command { std: "docker" "inspect" "03a6db3631f8195bf053070edd9f78520aa638f8a10d3ef1ee5f9a81c93c6a17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03a6db3631f8195bf053070edd9f78520aa638f8a10d3ef1ee5f9a81c93c6a17", kill_on_drop: false }`
[INFO] [stdout] 03a6db3631f8195bf053070edd9f78520aa638f8a10d3ef1ee5f9a81c93c6a17