[INFO] cloning repository https://github.com/leo60228/evil-derive
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leo60228/evil-derive" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleo60228%2Fevil-derive", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleo60228%2Fevil-derive'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36c6ba7ed9d905f6271214ee253db161c7b072ed
[INFO] checking leo60228/evil-derive/36c6ba7ed9d905f6271214ee253db161c7b072ed against master#042c759f774872cf2f94c6685ce87e24c046c722 for pr-156977
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleo60228%2Fevil-derive" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/leo60228/evil-derive
[INFO] finished tweaking git repo https://github.com/leo60228/evil-derive
[INFO] tweaked toml for git repo https://github.com/leo60228/evil-derive written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/leo60228/evil-derive on toolchain 042c759f774872cf2f94c6685ce87e24c046c722
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+042c759f774872cf2f94c6685ce87e24c046c722" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/leo60228/evil-derive 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" "+042c759f774872cf2f94c6685ce87e24c046c722" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 8d38eb9528dc2d7876fd00ac8b5801827a410cdbe8cb73374a1af81a0292ef69
[INFO] running `Command { std: "docker" "start" "8d38eb9528dc2d7876fd00ac8b5801827a410cdbe8cb73374a1af81a0292ef69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8d38eb9528dc2d7876fd00ac8b5801827a410cdbe8cb73374a1af81a0292ef69" "/opt/rustwide/cargo-home/bin/cargo" "+042c759f774872cf2f94c6685ce87e24c046c722" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d38eb9528dc2d7876fd00ac8b5801827a410cdbe8cb73374a1af81a0292ef69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8d38eb9528dc2d7876fd00ac8b5801827a410cdbe8cb73374a1af81a0292ef69" "/opt/rustwide/cargo-home/bin/cargo" "+042c759f774872cf2f94c6685ce87e24c046c722" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling vtables v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct VTable(pub [*const c_void; 1]);
[INFO] [stdout]    |        ------ ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct VTable(pub [*const c_void; 1]);
[INFO] [stdout]    |        ------ ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: dereferencing a null pointer
[INFO] [stdout]   --> src/header.rs:21:19
[INFO] [stdout]    |
[INFO] [stdout] 21 |         unsafe { &(*(::std::ptr::null::<non_virtual>())).value as *const _ as usize },
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(deref_nullptr)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: dereferencing a null pointer
[INFO] [stdout]   --> src/header.rs:72:19
[INFO] [stdout]    |
[INFO] [stdout] 72 |         unsafe { &(*(::std::ptr::null::<base>())).value as *const _ as usize },
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vtables` (bin "vtables" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "8d38eb9528dc2d7876fd00ac8b5801827a410cdbe8cb73374a1af81a0292ef69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d38eb9528dc2d7876fd00ac8b5801827a410cdbe8cb73374a1af81a0292ef69", kill_on_drop: false }`
[INFO] [stdout] 8d38eb9528dc2d7876fd00ac8b5801827a410cdbe8cb73374a1af81a0292ef69