[INFO] fetching crate wfc-rs 0.6.1...
[INFO] checking wfc-rs-0.6.1 against try#7306d3110618f84a6a4662b9e2cc4fd0d9b02da8 for pr-97346
[INFO] extracting crate wfc-rs 0.6.1 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate wfc-rs 0.6.1 on toolchain 7306d3110618f84a6a4662b9e2cc4fd0d9b02da8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7306d3110618f84a6a4662b9e2cc4fd0d9b02da8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wfc-rs 0.6.1
[INFO] finished tweaking crates.io crate wfc-rs 0.6.1
[INFO] tweaked toml for crates.io crate wfc-rs 0.6.1 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7306d3110618f84a6a4662b9e2cc4fd0d9b02da8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7306d3110618f84a6a4662b9e2cc4fd0d9b02da8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+7306d3110618f84a6a4662b9e2cc4fd0d9b02da8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd3eaab48ce6d039ec5028e7abeefb09eb09d88ac6851ba7fa85da1b0ff4c476
[INFO] running `Command { std: "docker" "start" "-a" "cd3eaab48ce6d039ec5028e7abeefb09eb09d88ac6851ba7fa85da1b0ff4c476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd3eaab48ce6d039ec5028e7abeefb09eb09d88ac6851ba7fa85da1b0ff4c476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd3eaab48ce6d039ec5028e7abeefb09eb09d88ac6851ba7fa85da1b0ff4c476", kill_on_drop: false }`
[INFO] [stdout] cd3eaab48ce6d039ec5028e7abeefb09eb09d88ac6851ba7fa85da1b0ff4c476
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+7306d3110618f84a6a4662b9e2cc4fd0d9b02da8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a0921b566aa5522a3943ef556bf8e25bf515a608d43f5a38974301598d33a7c
[INFO] running `Command { std: "docker" "start" "-a" "6a0921b566aa5522a3943ef556bf8e25bf515a608d43f5a38974301598d33a7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling wfc-rs v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: In file included from csrc/wfc.c:7:
[INFO] [stderr] warning: csrc/wfc.h: In function 'wfc__img_cmpoverlap':
[INFO] [stderr] warning: csrc/wfc.h:465:9: warning: unused variable 'b_y' [-Wunused-variable]
[INFO] [stderr] warning:   465 |     int b_y = b_offy + y;
[INFO] [stderr] warning:       |         ^~~
[INFO] [stderr] warning: csrc/wfc.h:464:9: warning: unused variable 'a_y' [-Wunused-variable]
[INFO] [stderr] warning:   464 |     int a_y = a_offy + y;
[INFO] [stderr] warning:       |         ^~~
[INFO] [stderr] warning: csrc/wfc.h: In function 'wfc__destroy_cells':
[INFO] [stderr] warning: csrc/wfc.h:820:61: warning: unused parameter 'cell_cnt' [-Wunused-parameter]
[INFO] [stderr] warning:   820 | static void wfc__destroy_cells(struct wfc__cell *cells, int cell_cnt)
[INFO] [stderr] warning:       |                                                         ~~~~^~~~~~~~
[INFO] [stderr] warning: csrc/wfc.h: In function 'wfc__create_allowed_tiles':
[INFO] [stderr] warning: csrc/wfc.h:899:2: warning: label 'CLEANUP' defined but not used [-Wunused-label]
[INFO] [stderr] warning:   899 |  CLEANUP:
[INFO] [stderr] warning:       |  ^~~~~~~
[INFO] [stderr] warning: At top level:
[INFO] [stderr] warning: csrc/wfc.h:594:13: warning: 'wfc_cells' defined but not used [-Wunused-function]
[INFO] [stderr] warning:   594 | static int *wfc_cells(struct wfc *wfc)
[INFO] [stderr] warning:       |             ^~~~~~~~~
[INFO] [stderr] warning: csrc/wfc.h:588:13: warning: 'wfc_destroy_cells' defined but not used [-Wunused-function]
[INFO] [stderr] warning:   588 | static void wfc_destroy_cells(int *cells)
[INFO] [stderr] warning:       |             ^~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: csrc/wfc.h:582:14: warning: 'wfc__nofunc_ptr' defined but not used [-Wunused-function]
[INFO] [stderr] warning:   582 | static void *wfc__nofunc_ptr(const char *func_name, const char *msg, ...)
[INFO] [stderr] warning:       |              ^~~~~~~~~~~~~~~
[INFO] [stderr] warning: csrc/wfc.h:576:12: warning: 'wfc__nofunc_int' defined but not used [-Wunused-function]
[INFO] [stderr] warning:   576 | static int wfc__nofunc_int(const char *func_name, const char *msg, ...)
[INFO] [stderr] warning:       |            ^~~~~~~~~~~~~~~
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.35s
[INFO] running `Command { std: "docker" "inspect" "6a0921b566aa5522a3943ef556bf8e25bf515a608d43f5a38974301598d33a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0921b566aa5522a3943ef556bf8e25bf515a608d43f5a38974301598d33a7c", kill_on_drop: false }`
[INFO] [stdout] 6a0921b566aa5522a3943ef556bf8e25bf515a608d43f5a38974301598d33a7c