[INFO] cloning repository https://github.com/snoyberg/lightsout-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/snoyberg/lightsout-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnoyberg%2Flightsout-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnoyberg%2Flightsout-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76008bccf87b0685164b2da45eeaf82f440a9de8
[INFO] testing snoyberg/lightsout-rs against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnoyberg%2Flightsout-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/snoyberg/lightsout-rs on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/snoyberg/lightsout-rs
[INFO] finished tweaking git repo https://github.com/snoyberg/lightsout-rs
[INFO] tweaked toml for git repo https://github.com/snoyberg/lightsout-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/snoyberg/lightsout-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e057eae3af04edac3b77d9873f081bcb803fbb5abf5474f8a215eb5a5640a2d0
[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" "e057eae3af04edac3b77d9873f081bcb803fbb5abf5474f8a215eb5a5640a2d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e057eae3af04edac3b77d9873f081bcb803fbb5abf5474f8a215eb5a5640a2d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e057eae3af04edac3b77d9873f081bcb803fbb5abf5474f8a215eb5a5640a2d0", kill_on_drop: false }`
[INFO] [stdout] e057eae3af04edac3b77d9873f081bcb803fbb5abf5474f8a215eb5a5640a2d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", 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] d9e8629f8bc5a946632feb8712bc879c2b6fdf0ebcc5a736bb2aa30ce92f3b06
[INFO] running `Command { std: "docker" "start" "-a" "d9e8629f8bc5a946632feb8712bc879c2b6fdf0ebcc5a736bb2aa30ce92f3b06", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.2
[INFO] [stderr]    Compiling base-x v0.2.3
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.2
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling stdweb v0.4.10
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]    Compiling lightsout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 |     listeners: Vec<Box<FnMut(&T)>>,
[INFO] [stdout]    |                        ^^^^^^^^^ help: use `dyn`: `dyn FnMut(&T)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/main.rs:156:58
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 let mut lights: [Reactive<Light>; 25] =  std::mem::uninitialized();
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_random`
[INFO] [stdout]    --> src/main.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn new_random<R: rand::Rng>(difficulty: usize, rng: &mut R) -> Game {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `all_off`
[INFO] [stdout]    --> src/main.rs:220:8
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn all_off(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_usize`
[INFO] [stdout]    --> src/main.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn read_usize(buffer: &mut String, stdin: &std::io::Stdin, stdout: &std::io::Stdout, label: &str) -> Result<usize, std::io::Error> {
[INFO] [stdout]     |    ^^^^^^^^^^
[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/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1" "/opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.1m1kaabi0f3jtuo6.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libstdweb-cbb5a27c2d07b107.rlib" "/opt/rustwide/target/debug/deps/libdiscard-7d046748822603f8.rlib" "/opt/rustwide/target/debug/deps/libstdweb_internal_runtime-62a65b520279adfd.rlib" "/opt/rustwide/target/debug/deps/libserde_json-ea8620370c2d380e.rlib" "/opt/rustwide/target/debug/deps/libryu-14e2d52982707843.rlib" "/opt/rustwide/target/debug/deps/libitoa-112bb79833734ba1.rlib" "/opt/rustwide/target/debug/deps/libserde-a6b08f6194a1fd54.rlib" "/opt/rustwide/target/debug/deps/librand-b97b781b880512d1.rlib" "/opt/rustwide/target/debug/deps/liblibc-c4551555b354ab80.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-b40d807bf4433ee0.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-264d9a89f007776c.rlib" "/opt/rustwide/target/debug/deps/librand_hc-0b7c25cd87aa9eba.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-16e251fb54299e23.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-8e165211272f7bfb.rlib" "/opt/rustwide/target/debug/deps/librand_core-cefe9b742d858e38.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-c659455244c9d2ca.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-448643d99e633b5d.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-c7c3d631a525883a.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-d7659a11bb201e01.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-9aceb6f83a33a9b6.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-876c3057c8a2a7c2.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-2f02aa3e24d2aa49.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-1d4694108f8cb543.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-79eaa6e630880f50.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-0df1a4ec96f80cf7.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bba9b0f0f4d77257.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-f848f9c987265235.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0d5ea4f2d39b8e27.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c22053fa5fc00a3b.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-c52e5d6301e1bd59.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-2675a9a46b5cec89.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-6e3d052afeb9f711.rlib" "-Wl,-Bdynamic" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.1.rcgu.o: in function `stdweb::webapi::event_target::IEventTarget::add_event_listener':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/event_target.rs:54: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.1.rcgu.o: in function `stdweb::webapi::node::INode::first_child':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/node.rs:122: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.1.rcgu.o: in function `stdweb::webapi::node::INode::append_child':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/node.rs:45: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.1.rcgu.o: in function `stdweb::webapi::node::INode::append_child':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/node.rs:45: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.1.rcgu.o: in function `stdweb::webapi::node::INode::remove_child':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/node.rs:55: undefined reference to `emscripten_asm_const_int'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/lightsout-d4b19e442c5553a1.lightsout.766qlbxc-cgu.1.rcgu.o:/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-0.4.10/src/webapi/node.rs:55: more undefined references to `emscripten_asm_const_int' follow
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lightsout`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d9e8629f8bc5a946632feb8712bc879c2b6fdf0ebcc5a736bb2aa30ce92f3b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9e8629f8bc5a946632feb8712bc879c2b6fdf0ebcc5a736bb2aa30ce92f3b06", kill_on_drop: false }`
[INFO] [stdout] d9e8629f8bc5a946632feb8712bc879c2b6fdf0ebcc5a736bb2aa30ce92f3b06