[INFO] fetching crate wfc-rs 0.6.1...
[INFO] testing wfc-rs-0.6.1 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate wfc-rs 0.6.1 into /workspace/builds/worker-1-tc2/source
[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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wfc-rs 0.6.1 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdb5313b70c31e363c20e03aad23322f94c1b86768a155af66662dc23b0c993f
[INFO] running `Command { std: "docker" "start" "-a" "fdb5313b70c31e363c20e03aad23322f94c1b86768a155af66662dc23b0c993f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdb5313b70c31e363c20e03aad23322f94c1b86768a155af66662dc23b0c993f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdb5313b70c31e363c20e03aad23322f94c1b86768a155af66662dc23b0c993f", kill_on_drop: false }`
[INFO] [stdout] fdb5313b70c31e363c20e03aad23322f94c1b86768a155af66662dc23b0c993f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e185461e353df171c6c89a95ffea0a7374f3357cc7529e3f684b8a63d945918c
[INFO] running `Command { std: "docker" "start" "-a" "e185461e353df171c6c89a95ffea0a7374f3357cc7529e3f684b8a63d945918c", kill_on_drop: false }`
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling cc v1.2.41
[INFO] [stderr]    Compiling wfc-rs v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: wfc-rs@0.6.1: In file included from csrc/wfc.c:7:
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: In function 'wfc__img_cmpoverlap':
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:465:9: warning: unused variable 'b_y' [-Wunused-variable]
[INFO] [stderr] warning: wfc-rs@0.6.1:   465 |     int b_y = b_offy + y;
[INFO] [stderr] warning: wfc-rs@0.6.1:       |         ^~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:464:9: warning: unused variable 'a_y' [-Wunused-variable]
[INFO] [stderr] warning: wfc-rs@0.6.1:   464 |     int a_y = a_offy + y;
[INFO] [stderr] warning: wfc-rs@0.6.1:       |         ^~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: In function 'wfc__destroy_cells':
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:820:61: warning: unused parameter 'cell_cnt' [-Wunused-parameter]
[INFO] [stderr] warning: wfc-rs@0.6.1:   820 | static void wfc__destroy_cells(struct wfc__cell *cells, int cell_cnt)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |                                                         ~~~~^~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: In function 'wfc__create_allowed_tiles':
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:899:2: warning: label 'CLEANUP' defined but not used [-Wunused-label]
[INFO] [stderr] warning: wfc-rs@0.6.1:   899 |  CLEANUP:
[INFO] [stderr] warning: wfc-rs@0.6.1:       |  ^~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: At top level:
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:594:13: warning: 'wfc_cells' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   594 | static int *wfc_cells(struct wfc *wfc)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |             ^~~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:588:13: warning: 'wfc_destroy_cells' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   588 | static void wfc_destroy_cells(int *cells)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |             ^~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:582:14: warning: 'wfc__nofunc_ptr' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   582 | static void *wfc__nofunc_ptr(const char *func_name, const char *msg, ...)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |              ^~~~~~~~~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:576:12: warning: 'wfc__nofunc_int' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   576 | static int wfc__nofunc_int(const char *func_name, const char *msg, ...)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |            ^~~~~~~~~~~~~~~
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern {
[INFO] [stdout]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/lib.rs:96:13
[INFO] [stdout]    |
[INFO] [stdout] 96 |             std::mem::forget(data);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^----^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `*mut u8`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(forgetting_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 96 -             std::mem::forget(data);
[INFO] [stdout] 96 +             let _ = data;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.69s
[INFO] running `Command { std: "docker" "inspect" "e185461e353df171c6c89a95ffea0a7374f3357cc7529e3f684b8a63d945918c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e185461e353df171c6c89a95ffea0a7374f3357cc7529e3f684b8a63d945918c", kill_on_drop: false }`
[INFO] [stdout] e185461e353df171c6c89a95ffea0a7374f3357cc7529e3f684b8a63d945918c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8f6b78cba434923b1fc719a1e78ff6a165bd5bde9ff828f3e6abe90ebc42466
[INFO] running `Command { std: "docker" "start" "-a" "e8f6b78cba434923b1fc719a1e78ff6a165bd5bde9ff828f3e6abe90ebc42466", kill_on_drop: false }`
[INFO] [stderr] warning: wfc-rs@0.6.1: In file included from csrc/wfc.c:7:
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: In function 'wfc__img_cmpoverlap':
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:465:9: warning: unused variable 'b_y' [-Wunused-variable]
[INFO] [stderr] warning: wfc-rs@0.6.1:   465 |     int b_y = b_offy + y;
[INFO] [stderr] warning: wfc-rs@0.6.1:       |         ^~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:464:9: warning: unused variable 'a_y' [-Wunused-variable]
[INFO] [stderr] warning: wfc-rs@0.6.1:   464 |     int a_y = a_offy + y;
[INFO] [stderr] warning: wfc-rs@0.6.1:       |         ^~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: In function 'wfc__destroy_cells':
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:820:61: warning: unused parameter 'cell_cnt' [-Wunused-parameter]
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern {
[INFO] [stdout]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: wfc-rs@0.6.1:   820 | static void wfc__destroy_cells(struct wfc__cell *cells, int cell_cnt)
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/lib.rs:96:13
[INFO] [stdout]    |
[INFO] [stdout] 96 |             std::mem::forget(data);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^----^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `*mut u8`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(forgetting_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 96 -             std::mem::forget(data);
[INFO] [stdout] 96 +             let _ = data;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: wfc-rs@0.6.1:       |                                                         ~~~~^~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: In function 'wfc__create_allowed_tiles':
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:899:2: warning: label 'CLEANUP' defined but not used [-Wunused-label]
[INFO] [stderr] warning: wfc-rs@0.6.1:   899 |  CLEANUP:
[INFO] [stderr] warning: wfc-rs@0.6.1:       |  ^~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: At top level:
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:594:13: warning: 'wfc_cells' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   594 | static int *wfc_cells(struct wfc *wfc)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |             ^~~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:588:13: warning: 'wfc_destroy_cells' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   588 | static void wfc_destroy_cells(int *cells)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |             ^~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:582:14: warning: 'wfc__nofunc_ptr' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   582 | static void *wfc__nofunc_ptr(const char *func_name, const char *msg, ...)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |              ^~~~~~~~~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:576:12: warning: 'wfc__nofunc_int' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   576 | static int wfc__nofunc_int(const char *func_name, const char *msg, ...)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |            ^~~~~~~~~~~~~~~
[INFO] [stderr]    Compiling wfc-rs v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | extern {
[INFO] [stdout]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/lib.rs:96:13
[INFO] [stdout]    |
[INFO] [stdout] 96 |             std::mem::forget(data);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^----^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `*mut u8`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(forgetting_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 96 -             std::mem::forget(data);
[INFO] [stdout] 96 +             let _ = data;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "e8f6b78cba434923b1fc719a1e78ff6a165bd5bde9ff828f3e6abe90ebc42466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8f6b78cba434923b1fc719a1e78ff6a165bd5bde9ff828f3e6abe90ebc42466", kill_on_drop: false }`
[INFO] [stdout] e8f6b78cba434923b1fc719a1e78ff6a165bd5bde9ff828f3e6abe90ebc42466
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 69dc0966077ad83fc82a699c300cfa2f9d2bf5c4d4d941b96d050322b94736fa
[INFO] running `Command { std: "docker" "start" "-a" "69dc0966077ad83fc82a699c300cfa2f9d2bf5c4d4d941b96d050322b94736fa", kill_on_drop: false }`
[INFO] [stderr] warning: wfc-rs@0.6.1: In file included from csrc/wfc.c:7:
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: In function 'wfc__img_cmpoverlap':
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:465:9: warning: unused variable 'b_y' [-Wunused-variable]
[INFO] [stderr] warning: wfc-rs@0.6.1:   465 |     int b_y = b_offy + y;
[INFO] [stderr] warning: wfc-rs@0.6.1:       |         ^~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:464:9: warning: unused variable 'a_y' [-Wunused-variable]
[INFO] [stderr] warning: wfc-rs@0.6.1:   464 |     int a_y = a_offy + y;
[INFO] [stderr] warning: wfc-rs@0.6.1:       |         ^~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: In function 'wfc__destroy_cells':
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:820:61: warning: unused parameter 'cell_cnt' [-Wunused-parameter]
[INFO] [stderr] warning: wfc-rs@0.6.1:   820 | static void wfc__destroy_cells(struct wfc__cell *cells, int cell_cnt)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |                                                         ~~~~^~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: In function 'wfc__create_allowed_tiles':
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:899:2: warning: label 'CLEANUP' defined but not used [-Wunused-label]
[INFO] [stderr] warning: wfc-rs@0.6.1:   899 |  CLEANUP:
[INFO] [stderr] warning: wfc-rs@0.6.1:       |  ^~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h: At top level:
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:594:13: warning: 'wfc_cells' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   594 | static int *wfc_cells(struct wfc *wfc)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |             ^~~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:588:13: warning: 'wfc_destroy_cells' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   588 | static void wfc_destroy_cells(int *cells)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |             ^~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:582:14: warning: 'wfc__nofunc_ptr' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   582 | static void *wfc__nofunc_ptr(const char *func_name, const char *msg, ...)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |              ^~~~~~~~~~~~~~~
[INFO] [stderr] warning: wfc-rs@0.6.1: csrc/wfc.h:576:12: warning: 'wfc__nofunc_int' defined but not used [-Wunused-function]
[INFO] [stderr] warning: wfc-rs@0.6.1:   576 | static int wfc__nofunc_int(const char *func_name, const char *msg, ...)
[INFO] [stderr] warning: wfc-rs@0.6.1:       |            ^~~~~~~~~~~~~~~
[INFO] [stderr] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stderr]  --> src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | extern {
[INFO] [stderr]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::forget` with a value that implements `Copy` does nothing
[INFO] [stderr]   --> src/lib.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |             std::mem::forget(data);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^----^
[INFO] [stderr]    |                              |
[INFO] [stderr]    |                              argument has type `*mut u8`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(forgetting_copy_types)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 96 -             std::mem::forget(data);
[INFO] [stderr] 96 +             let _ = data;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `wfc-rs` (lib) generated 2 warnings (run `cargo fix --lib -p wfc-rs` to apply 1 suggestion)
[INFO] [stderr] warning: `wfc-rs` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/wfc_rs-166774d92cc5515c)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_image ... ok
[INFO] [stdout] test test_overlapping ... ok
[INFO] [stdout] test test_run ... ok
[INFO] [stdout] test test_export ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_export stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test_export' panicked at src/lib.rs:280:30:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: "wfc_export returned an error!"
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6123c100c8c2 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6123c100c8c2 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6123c100c8c2 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6123c100c8c2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6123c1031a33 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x6123c1031a33 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x6123c10097a3 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6123c10097a3 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x6123c100c712 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x6123c100dedc - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x6123c100dd32 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x6123c0fd5cc4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x6123c0fd5cc4 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x6123c100e8bb - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x6123c100e8bb - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x6123c100e68a - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x6123c100cdb9 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x6123c100e31d - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x6123c10305b0 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x6123c1030926 - core::result::unwrap_failed::hfbbd3c78a73fea3d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1761:5
[INFO] [stdout]   20:     0x6123c0f7c7b6 - core::result::Result<T,E>::unwrap::h8f003d377e7d0dbf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1167:23
[INFO] [stdout]   21:     0x6123c0f7c7b6 - wfc_rs::test_export::h98b9e98f5a820b55
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:280:30
[INFO] [stdout]   22:     0x6123c0f7c7b6 - wfc_rs::test_export::{{closure}}::h4d2b0b7d2c2eb928
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:273:21
[INFO] [stdout]   23:     0x6123c0f7c7b6 - core::ops::function::FnOnce::call_once::hdbcacfb83beada7a
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x6123c0fdb3fb - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x6123c0fdb3fb - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x6123c0fda63e - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x6123c0fda63e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x6123c0fda63e - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x6123c0fda63e - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x6123c0fda63e - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x6123c0fda63e - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x6123c0fda63e - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x6123c0f9e1e4 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x6123c0f9e1e4 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   35:     0x6123c0fa1b8a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x6123c0fa1b8a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x6123c0fa1b8a - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x6123c0fa1b8a - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x6123c0fa1b8a - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x6123c0fa1b8a - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x6123c0fa1b8a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x6123c1011817 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x6123c1011817 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x6123c1011817 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   45:     0x785038537aa4 - <unknown>
[INFO] [stdout]   46:     0x7850385c4a34 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_export
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.88s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "69dc0966077ad83fc82a699c300cfa2f9d2bf5c4d4d941b96d050322b94736fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69dc0966077ad83fc82a699c300cfa2f9d2bf5c4d4d941b96d050322b94736fa", kill_on_drop: false }`
[INFO] [stdout] 69dc0966077ad83fc82a699c300cfa2f9d2bf5c4d4d941b96d050322b94736fa
