[INFO] fetching crate tello 0.3.0...
[INFO] testing tello-0.3.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate tello 0.3.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate tello 0.3.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tello 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tello 0.3.0
[INFO] tweaked toml for crates.io crate tello 0.3.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate tello 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2 v0.32.2
[INFO] [stderr]   Downloaded sdl2-sys v0.32.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfa05cac0bdecaa96c8fb5dc79d52f2d5398185012e11cf8af48300439fa580a
[INFO] running `Command { std: "docker" "start" "-a" "bfa05cac0bdecaa96c8fb5dc79d52f2d5398185012e11cf8af48300439fa580a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfa05cac0bdecaa96c8fb5dc79d52f2d5398185012e11cf8af48300439fa580a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa05cac0bdecaa96c8fb5dc79d52f2d5398185012e11cf8af48300439fa580a", kill_on_drop: false }`
[INFO] [stdout] bfa05cac0bdecaa96c8fb5dc79d52f2d5398185012e11cf8af48300439fa580a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 512aa9eb971b5b83c6cd81da3404ff4a70c273057428421bd291952b0d2b552a
[INFO] running `Command { std: "docker" "start" "-a" "512aa9eb971b5b83c6cd81da3404ff4a70c273057428421bd291952b0d2b552a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling tello v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.67s
[INFO] running `Command { std: "docker" "inspect" "512aa9eb971b5b83c6cd81da3404ff4a70c273057428421bd291952b0d2b552a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "512aa9eb971b5b83c6cd81da3404ff4a70c273057428421bd291952b0d2b552a", kill_on_drop: false }`
[INFO] [stdout] 512aa9eb971b5b83c6cd81da3404ff4a70c273057428421bd291952b0d2b552a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7c9e70373e0d6e29fe39d7d5ad04808cae360d9fac224f46c598733c2cf5dfa
[INFO] running `Command { std: "docker" "start" "-a" "e7c9e70373e0d6e29fe39d7d5ad04808cae360d9fac224f46c598733c2cf5dfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling tello v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `SocketAddr`, `UdpSocket`
[INFO] [stdout]  --> examples/fly/main.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::net::{SocketAddr, UdpSocket};
[INFO] [stdout]   |                ^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.0.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.1.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.10.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.11.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.12.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.13.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.14.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.15.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.2.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.3.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.4.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.5.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.6.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.7.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.8.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.fly.f7583054-cgu.9.rcgu.o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e.3zr23j5twf71aor0.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libtello-5f9c7ee0d8aff332.rlib" "/opt/rustwide/target/debug/deps/libchrono-e29c7ba7e32099ac.rlib" "/opt/rustwide/target/debug/deps/libtime-389cd48ed50276f6.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-16d863000652add8.rlib" "/opt/rustwide/target/debug/deps/libsdl2-2a359ef5ba6492db.rlib" "/opt/rustwide/target/debug/deps/librand-67617ead41c44b29.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-ab505d75aae818f3.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-d7ce2f11f8c84738.rlib" "/opt/rustwide/target/debug/deps/librand_hc-a0a75dd4af812220.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-dba76580cf2ee4ff.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-13a854f61f415c86.rlib" "/opt/rustwide/target/debug/deps/librand_core-a03f340c157b8ac6.rlib" "/opt/rustwide/target/debug/deps/librand_os-148edb7176615f4a.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-60352e5bd5110e26.rlib" "/opt/rustwide/target/debug/deps/librand_core-3a46beeb136e9cca.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-c81bdbb0c9f59e81.rlib" "/opt/rustwide/target/debug/deps/libbitflags-603a79344a96ee73.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-f67718dd40129317.rlib" "/opt/rustwide/target/debug/deps/liblibc-292556879ad16416.rlib" "/opt/rustwide/target/debug/deps/libnum-ede198e2f646c150.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-26e61618ae755979.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-888180d47b609909.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-c244e83104064720.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-37fdd654777c296f.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-d883bf2137e9181a.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-22ab8f3db88b586e.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-0167c9242d0931d5.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-361790a1a5505fc5.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-01c2ffe1ecd05a67.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-ec79e29a889fe805.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-001a3456e8a8331b.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e8f1404290f0f040.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-76f46d0f23360a60.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-baf0bdc5eb131895.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3a6a4ee6592d9370.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-1cc90d9dd57195f8.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0e91863ffbec5148.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-69528f2eac185ac9.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-52d5241975807511.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9924c22ae1efcf66.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-d1241f7bd234a268.rlib" "-Wl,-Bdynamic" "-lSDL2" "-lSDL2_ttf" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/examples/fly-3d157cb0715a220e" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lSDL2_ttf
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tello`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e7c9e70373e0d6e29fe39d7d5ad04808cae360d9fac224f46c598733c2cf5dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7c9e70373e0d6e29fe39d7d5ad04808cae360d9fac224f46c598733c2cf5dfa", kill_on_drop: false }`
[INFO] [stdout] e7c9e70373e0d6e29fe39d7d5ad04808cae360d9fac224f46c598733c2cf5dfa