[INFO] updating cached repository https://github.com/mgsloan/treadcam
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7394173dbc9e81874d897e2e382f0ea38784b20
[INFO] testing mgsloan/treadcam against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgsloan%2Ftreadcam" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mgsloan/treadcam on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mgsloan/treadcam
[INFO] finished tweaking git repo https://github.com/mgsloan/treadcam
[INFO] tweaked toml for git repo https://github.com/mgsloan/treadcam written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/mgsloan/treadcam already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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] bc2e0bb02c3634479ed76efb749143da20cec02fd23d6c3ad2949a5358bf3c1e
[INFO] running `Command { std: "docker" "start" "-a" "bc2e0bb02c3634479ed76efb749143da20cec02fd23d6c3ad2949a5358bf3c1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc2e0bb02c3634479ed76efb749143da20cec02fd23d6c3ad2949a5358bf3c1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc2e0bb02c3634479ed76efb749143da20cec02fd23d6c3ad2949a5358bf3c1e", kill_on_drop: false }`
[INFO] [stdout] bc2e0bb02c3634479ed76efb749143da20cec02fd23d6c3ad2949a5358bf3c1e
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a39a1f69709de843f49814a8644650cdee5bef62fcebc3347c3cb77491b66f53
[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" "a39a1f69709de843f49814a8644650cdee5bef62fcebc3347c3cb77491b66f53", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling itoa v0.4.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling goertzel v0.2.0
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling rscam v0.5.4
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling serde_json v1.0.20
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling rustfft v2.0.0
[INFO] [stderr]    Compiling image v0.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]    Compiling treadcam v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rustfft::FFTplanner`
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use rustfft::FFTplanner;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rustfft::num_complex::Complex`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use rustfft::num_complex::Complex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:161:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |         for x in 0..(img.width() - 1) {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut input_bytes = fs::read("data/walking/out.json").unwrap();
[INFO] [stdout]    |         ----^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let mut img = image::ImageBuffer::from_fn(img0.width(), img0.height(), |x, y| img0[(x, y)]);
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `old_main`
[INFO] [stdout]   --> src/main.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn old_main() {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |     out_img.save("out.jpg");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     file.write_all(serde_json::to_string(&data).unwrap().as_bytes());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.treadcam.30i09mjz-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299" "/opt/rustwide/target/debug/deps/treadcam-cf89944d73f0f299.kxavarsz37fwx10.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libgoertzel-36a0b50b59962163.rlib" "/opt/rustwide/target/debug/deps/librustfft-ab01d22e54fb6c09.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-b33e3ca8c3abd099.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-d833c3470fa60f44.rlib" "/opt/rustwide/target/debug/deps/libserde_json-f9b358c808d963c9.rlib" "/opt/rustwide/target/debug/deps/libitoa-94fd109bac6bd2f9.rlib" "/opt/rustwide/target/debug/deps/libdtoa-a9be346276aef9f4.rlib" "/opt/rustwide/target/debug/deps/libserde-9e3fc229f032c847.rlib" "/opt/rustwide/target/debug/deps/libimage-f5860fc75bdcd122.rlib" "/opt/rustwide/target/debug/deps/libscoped_threadpool-6c273243435ce414.rlib" "/opt/rustwide/target/debug/deps/libgif-1f2d579022658324.rlib" "/opt/rustwide/target/debug/deps/libcolor_quant-43e25ff04447f77f.rlib" "/opt/rustwide/target/debug/deps/liblzw-1663256aa41133c9.rlib" "/opt/rustwide/target/debug/deps/libjpeg_decoder-edf46f87314b67b3.rlib" "/opt/rustwide/target/debug/deps/librayon-de17aa287456fe2f.rlib" "/opt/rustwide/target/debug/deps/libeither-ab7229832adaebc2.rlib" "/opt/rustwide/target/debug/deps/librayon_core-3b57a4aab5d20d50.rlib" "/opt/rustwide/target/debug/deps/librand-c8fa76c33449dd6f.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-46c7e77cc3679361.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-609636afa62a120f.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-0aa18b48f34ea389.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-ad4c3ad3e7604ff0.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-6aac4dafce6b7963.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-9c44d5ad7af2d56a.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-929a956363bc2fd2.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-0c03ed3d309eee9c.rlib" "/opt/rustwide/target/debug/deps/libarrayvec-00e55e41342cbcb8.rlib" "/opt/rustwide/target/debug/deps/libnodrop-ed7fc3125c27ac78.rlib" "/opt/rustwide/target/debug/deps/libpng-d3329a6523f82968.rlib" "/opt/rustwide/target/debug/deps/libdeflate-858f63035365df54.rlib" "/opt/rustwide/target/debug/deps/libinflate-e2de6ba868d00b3f.rlib" "/opt/rustwide/target/debug/deps/libadler32-f4d5314f9472ca25.rlib" "/opt/rustwide/target/debug/deps/libbitflags-26fd8a5d3df4bfc9.rlib" "/opt/rustwide/target/debug/deps/libenum_primitive-ceda4fb7a898bcd8.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-abb2b75595cc3b33.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-9b98ded37d66df0e.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-6f8be255f6987f3d.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-53724df2e78dfda4.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-d2513ad4f3fec504.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-f596df4ed368e2a7.rlib" "/opt/rustwide/target/debug/deps/librscam-1459c2dfc0d2efd6.rlib" "/opt/rustwide/target/debug/deps/liblibc-cf06101683c86e8f.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-5989bcf78182f65e.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-4d6da34bc177af8d.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-10e0d6c948699482.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-c2318e2415657781.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-3815b93ed84badbb.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-d7999143d95238cb.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-c58298a0d40df8b8.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-b7de97e2ba6fb4e2.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6f71c9f654d72cce.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-95ea48ddc44a311b.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-7402cd4761aebc14.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-68f423c59dc48a40.rlib" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-54580c7798bf2225.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/03a1ea71b075ab964b5278bc6e74cd6c52c36ee0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-95a4d456339b7385.rlib" "-Wl,-Bdynamic" "-lv4l2" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lv4l2
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `treadcam`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a39a1f69709de843f49814a8644650cdee5bef62fcebc3347c3cb77491b66f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a39a1f69709de843f49814a8644650cdee5bef62fcebc3347c3cb77491b66f53", kill_on_drop: false }`
[INFO] [stdout] a39a1f69709de843f49814a8644650cdee5bef62fcebc3347c3cb77491b66f53