[INFO] fetching crate libblkid-sys 0.1.0...
[INFO] checking libblkid-sys-0.1.0 against try#7c3a44cf5f95fa5cf164a312bdcf845157af7093 for pr-77325
[INFO] extracting crate libblkid-sys 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate libblkid-sys 0.1.0 on toolchain 7c3a44cf5f95fa5cf164a312bdcf845157af7093
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libblkid-sys 0.1.0
[INFO] finished tweaking crates.io crate libblkid-sys 0.1.0
[INFO] tweaked toml for crates.io crate libblkid-sys 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "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] 492062ec6d49d6fad1f47c51e6b5a8656608307bef00aa201e1a3ecf7b285cbf
[INFO] running `Command { std: "docker" "start" "-a" "492062ec6d49d6fad1f47c51e6b5a8656608307bef00aa201e1a3ecf7b285cbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "492062ec6d49d6fad1f47c51e6b5a8656608307bef00aa201e1a3ecf7b285cbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "492062ec6d49d6fad1f47c51e6b5a8656608307bef00aa201e1a3ecf7b285cbf", kill_on_drop: false }`
[INFO] [stdout] 492062ec6d49d6fad1f47c51e6b5a8656608307bef00aa201e1a3ecf7b285cbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d761d57ed68407928fa15987b459c4de016b55de58fb5fcf2e2490bba930744
[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" "4d761d57ed68407928fa15987b459c4de016b55de58fb5fcf2e2490bba930744", kill_on_drop: false }`
[INFO] [stderr]     Checking libblkid-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/lib.rs:182:19
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 & ( * ( 0 as * const __fsid_t ) ) . __val as * const _ as
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deref_nullptr)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/lib.rs:280:19
[INFO] [stdout]     |
[INFO] [stdout] 280 |                 & ( * ( 0 as * const __sigset_t ) ) . __val as * const _ as
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/lib.rs:302:19
[INFO] [stdout]     |
[INFO] [stdout] 302 |                 & ( * ( 0 as * const timeval ) ) . tv_sec as * const _ as
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/lib.rs:307:19
[INFO] [stdout]     |
[INFO] [stdout] 307 |                 & ( * ( 0 as * const timeval ) ) . tv_usec as * const _ as
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/lib.rs:328:19
[INFO] [stdout]     |
[INFO] [stdout] 328 |                 & ( * ( 0 as * const timespec ) ) . tv_sec as * const _ as
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/lib.rs:333:19
[INFO] [stdout]     |
[INFO] [stdout] 333 |                 & ( * ( 0 as * const timespec ) ) . tv_nsec as * const _ as
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/lib.rs:355:19
[INFO] [stdout]     |
[INFO] [stdout] 355 |                 & ( * ( 0 as * const fd_set ) ) . __fds_bits as * const _ as
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "4d761d57ed68407928fa15987b459c4de016b55de58fb5fcf2e2490bba930744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d761d57ed68407928fa15987b459c4de016b55de58fb5fcf2e2490bba930744", kill_on_drop: false }`
[INFO] [stdout] 4d761d57ed68407928fa15987b459c4de016b55de58fb5fcf2e2490bba930744