[INFO] cloning repository https://github.com/Technical27/opengl [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Technical27/opengl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechnical27%2Fopengl", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechnical27%2Fopengl'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9605959105a7998be1194907fb96ec539d03bfa0 [INFO] testing Technical27/opengl against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTechnical27%2Fopengl" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Technical27/opengl on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Technical27/opengl [INFO] finished tweaking git repo https://github.com/Technical27/opengl [INFO] tweaked toml for git repo https://github.com/Technical27/opengl written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/Technical27/opengl already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 04ed8f167b09d35e911938d33d07d00cb11d1de808e0c5644646afba15f4017f [INFO] running `Command { std: "docker" "start" "-a" "04ed8f167b09d35e911938d33d07d00cb11d1de808e0c5644646afba15f4017f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "04ed8f167b09d35e911938d33d07d00cb11d1de808e0c5644646afba15f4017f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04ed8f167b09d35e911938d33d07d00cb11d1de808e0c5644646afba15f4017f", kill_on_drop: false }` [INFO] [stdout] 04ed8f167b09d35e911938d33d07d00cb11d1de808e0c5644646afba15f4017f [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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b798f36830d9cc4b0075aa7e8a700cde0c7a9a71ca96cea135c9bfc640285e80 [INFO] running `Command { std: "docker" "start" "-a" "b798f36830d9cc4b0075aa7e8a700cde0c7a9a71ca96cea135c9bfc640285e80", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.76 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling rayon-core v1.8.0 [INFO] [stderr] Compiling khronos_api v3.1.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.9 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.18 [INFO] [stderr] Compiling adler32 v1.2.0 [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Compiling xml-rs v0.8.3 [INFO] [stderr] Compiling either v1.6.0 [INFO] [stderr] Compiling lzw v0.10.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling color_quant v1.0.1 [INFO] [stderr] Compiling bytemuck v1.4.0 [INFO] [stderr] Compiling scoped_threadpool v0.1.9 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling memoffset v0.5.5 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling rayon v1.4.0 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-rational v0.3.0 [INFO] [stderr] Compiling num-iter v0.1.41 [INFO] [stderr] Compiling matrixmultiply v0.2.3 [INFO] [stderr] Compiling miniz_oxide v0.3.7 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling gif v0.10.3 [INFO] [stderr] Compiling gl_generator v0.14.0 [INFO] [stderr] Compiling paste-impl v0.1.18 [INFO] [stderr] Compiling deflate v0.8.6 [INFO] [stderr] Compiling tiff v0.5.0 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling raw-window-handle v0.3.3 [INFO] [stderr] Compiling crossbeam-channel v0.4.3 [INFO] [stderr] Compiling glfw v0.40.0 [INFO] [stderr] Compiling approx v0.3.2 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling crossbeam-deque v0.7.3 [INFO] [stderr] Compiling png v0.16.7 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling paste v0.1.18 [INFO] [stderr] Compiling generic-array v0.13.2 [INFO] [stderr] Compiling gl v0.14.0 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling simba v0.2.0 [INFO] [stderr] Compiling rand_distr v0.2.2 [INFO] [stderr] Compiling nalgebra v0.22.0 [INFO] [stderr] Compiling jpeg-decoder v0.1.20 [INFO] [stderr] Compiling image v0.23.9 [INFO] [stderr] Compiling nalgebra-glm v0.8.0 [INFO] [stderr] Compiling opengl v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function is never used: `set_vec1` [INFO] [stdout] --> src/shader.rs:109:12 [INFO] [stdout] | [INFO] [stdout] 109 | pub fn set_vec1(&self, name: &str, value: &glm::Vec1) { [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: `set_vec2` [INFO] [stdout] --> src/shader.rs:113:12 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn set_vec2(&self, name: &str, value: &glm::Vec2) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Vertex` [INFO] [stdout] --> src/main.rs:22:8 [INFO] [stdout] | [INFO] [stdout] 22 | struct Vertex { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: linking with `cc` failed: exit status: 1 [INFO] [stdout] | [INFO] [stdout] = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.opengl.4bd087d1-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1.8v8gx47ggvo8wlm.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libimage-a291baa0cf58f814.rlib" "/opt/rustwide/target/debug/deps/libbytemuck-96995e60d358b92e.rlib" "/opt/rustwide/target/debug/deps/libpng-6b0a478a15d31f67.rlib" "/opt/rustwide/target/debug/deps/libcrc32fast-71ba54e8d8997506.rlib" "/opt/rustwide/target/debug/deps/libdeflate-c2b0f093bfa317f0.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-76fa1964504ddcf3.rlib" "/opt/rustwide/target/debug/deps/libjpeg_decoder-960094cd9a24ec09.rlib" "/opt/rustwide/target/debug/deps/librayon-662f390312adf76b.rlib" "/opt/rustwide/target/debug/deps/librayon_core-be7c6acd9b1bcc59.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-73bfdb4c28fae37c.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-107ab43b2b916437.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-a1b8f6ad84d6aea0.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-54ff2283d814f48f.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-297e0b627274509b.rlib" "/opt/rustwide/target/debug/deps/libmaybe_uninit-8e53985a502a8210.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_channel-e771fb603579eaf4.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-5ca249060cd27184.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-86422d76b8bd90ed.rlib" "/opt/rustwide/target/debug/deps/libeither-45a94b46bbd2de19.rlib" "/opt/rustwide/target/debug/deps/libscoped_threadpool-0a9edc57bfe4f517.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-e50d89811d5b5e86.rlib" "/opt/rustwide/target/debug/deps/libgif-d7226ff2c1aba3c4.rlib" "/opt/rustwide/target/debug/deps/libcolor_quant-9f62c68deb483c3f.rlib" "/opt/rustwide/target/debug/deps/libtiff-f1b868802a9fb34b.rlib" "/opt/rustwide/target/debug/deps/libminiz_oxide-210ea0057e6857f3.rlib" "/opt/rustwide/target/debug/deps/libadler32-4ad3039ef892af0b.rlib" "/opt/rustwide/target/debug/deps/liblzw-380b70f9536928dd.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-8e56524b8e4e4333.rlib" "/opt/rustwide/target/debug/deps/libglfw-37b2abab79491733.rlib" "/opt/rustwide/target/debug/deps/libraw_window_handle-f873ab7dea266f3d.rlib" "/opt/rustwide/target/debug/deps/libbitflags-6063cd2c96572b53.rlib" "/opt/rustwide/target/debug/deps/liblog-00cc5fb74ab3a2e8.rlib" "/opt/rustwide/target/debug/deps/libsemver-70d1e68fcda05e14.rlib" "/opt/rustwide/target/debug/deps/libsemver_parser-03acc8acbf834953.rlib" "/opt/rustwide/target/debug/deps/libgl-71f3e70fb50230b7.rlib" "/opt/rustwide/target/debug/deps/libnalgebra_glm-7f43db41e70e827d.rlib" "/opt/rustwide/target/debug/deps/libnalgebra-76657abef7e83000.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-8b4e89d33da63789.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-50138f019834f3df.rlib" "/opt/rustwide/target/debug/deps/libgeneric_array-bbf697151100bc80.rlib" "/opt/rustwide/target/debug/deps/libtypenum-3e376aaa9378417c.rlib" "/opt/rustwide/target/debug/deps/libsimba-f458894658bae777.rlib" "/opt/rustwide/target/debug/deps/libpaste-20b20129306bc599.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-b20fb6123d67d116.rlib" "/opt/rustwide/target/debug/deps/librand_distr-17e43e5b29759af8.rlib" "/opt/rustwide/target/debug/deps/librand-dcaa12fa03f3dbdc.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-aacc7f64d0b2dc41.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-aba7d3ebf881e183.rlib" "/opt/rustwide/target/debug/deps/librand_core-2c2da6277f7b6734.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-dafbd42001d08c60.rlib" "/opt/rustwide/target/debug/deps/liblibc-00920ef1ee85f0be.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-b22544e46cbb7baa.rlib" "/opt/rustwide/target/debug/deps/libmatrixmultiply-444d31cf94cf7d22.rlib" "/opt/rustwide/target/debug/deps/librawpointer-6f2190d0a178b7fa.rlib" "/opt/rustwide/target/debug/deps/libapprox-5560839c68433b76.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-30fa0d86dd034f95.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9a950938f3668a37.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-3b1b529ec96b3df7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-ac333df4e6839cea.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-22a9ff9d2be6d427.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-5decbb94c7d60860.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-29a9663b62a1cd00.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-6f0cee0dbab2d3f8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-f5dc7d1d28c5c249.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-d19bda9ef557e755.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-82a955fd13db2399.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-44f3e7c1b7cc17ef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-3ee6f750c5f3c2cf.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-ae5e1795dcba83e8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-8d545d8592f2b534.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-c4c222675f83fd37.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c1e9c53e75e301ed.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-beea7d9617fe25c5.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8ef7dd43fc671f88.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-80a2b295510dd038.rlib" "-Wl,-Bdynamic" "-lglfw" "-lX11" "-lutil" "-ldl" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/opengl-27354808eee901c1" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" [INFO] [stdout] = note: /usr/bin/ld: cannot find -lglfw [INFO] [stdout] collect2: error: ld returned 1 exit status [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `opengl` due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "b798f36830d9cc4b0075aa7e8a700cde0c7a9a71ca96cea135c9bfc640285e80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b798f36830d9cc4b0075aa7e8a700cde0c7a9a71ca96cea135c9bfc640285e80", kill_on_drop: false }` [INFO] [stdout] b798f36830d9cc4b0075aa7e8a700cde0c7a9a71ca96cea135c9bfc640285e80