[INFO] cloning repository https://github.com/whitf/cavegen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whitf/cavegen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhitf%2Fcavegen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhitf%2Fcavegen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13e4fc6cd6fffd90b1fe428ba85cb91ff68cd8c7
[INFO] testing whitf/cavegen against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhitf%2Fcavegen" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/whitf/cavegen on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/whitf/cavegen
[INFO] finished tweaking git repo https://github.com/whitf/cavegen
[INFO] tweaked toml for git repo https://github.com/whitf/cavegen written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/whitf/cavegen already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9aad0c2c0dc92147d157921ef1744b1347a4ba028bab7dfef0dc660b15819694
[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" "9aad0c2c0dc92147d157921ef1744b1347a4ba028bab7dfef0dc660b15819694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9aad0c2c0dc92147d157921ef1744b1347a4ba028bab7dfef0dc660b15819694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9aad0c2c0dc92147d157921ef1744b1347a4ba028bab7dfef0dc660b15819694", kill_on_drop: false }`
[INFO] [stdout] 9aad0c2c0dc92147d157921ef1744b1347a4ba028bab7dfef0dc660b15819694
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6a2ff1ff20b6b9bcdb9b18d302d531ab372d2cb06c6be814f953c2515c046f6
[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" "c6a2ff1ff20b6b9bcdb9b18d302d531ab372d2cb06c6be814f953c2515c046f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling sdl2 v0.34.1
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling c_vec v1.3.3
[INFO] [stderr]    Compiling sdl2-sys v0.34.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.18.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_derive v0.5.0
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rusqlite v0.23.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling table v0.4.0
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling cavegen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]  --> src/cave/event.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde::Serialize;
[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 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/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.cavegen.5780d8xn-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651" "/opt/rustwide/target/debug/deps/cavegen-586e0f82264bf651.1qrd6kawjn8e0ntj.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libtoml-ecdcdcb7e9d5eac5.rlib" "/opt/rustwide/target/debug/deps/librusqlite-c8ba01f2fdf96baf.rlib" "/opt/rustwide/target/debug/deps/libtime-3186bf3088a927c0.rlib" "/opt/rustwide/target/debug/deps/libsmallvec-008165c5eec7806a.rlib" "/opt/rustwide/target/debug/deps/libfallible_streaming_iterator-ff9cb00e216d0840.rlib" "/opt/rustwide/target/debug/deps/libfallible_iterator-d0deaf7fdb8ad575.rlib" "/opt/rustwide/target/debug/deps/liblru_cache-39fb356ad49a0a3f.rlib" "/opt/rustwide/target/debug/deps/liblinked_hash_map-8af8311b9ad75415.rlib" "/opt/rustwide/target/debug/deps/liblibsqlite3_sys-b5d9b7a1b432ea8f.rlib" "/opt/rustwide/target/debug/deps/libuuid-9fbd87f877e79c66.rlib" "/opt/rustwide/target/debug/deps/librand-ef1e0110de3257ca.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-b53adfdb30c7dd8e.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-8678fe79482d007d.rlib" "/opt/rustwide/target/debug/deps/librand_core-c4ebaf906c220b07.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-11ad14f18596aafd.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-b10e0993eefc366b.rlib" "/opt/rustwide/target/debug/deps/libserde-941c58e66533363d.rlib" "/opt/rustwide/target/debug/deps/libsdl2-3052dfe969eca184.rlib" "/opt/rustwide/target/debug/deps/libc_vec-9e574e3792076da3.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-e47c0455d1689b83.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-7895c92c6d278491.rlib" "/opt/rustwide/target/debug/deps/libclap-03df1c41ad977252.rlib" "/opt/rustwide/target/debug/deps/libvec_map-97b2d50686bf36e9.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-9c8afc33c4d7176e.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-382bc28e71ec1b15.rlib" "/opt/rustwide/target/debug/deps/libstrsim-8b805b0832095d99.rlib" "/opt/rustwide/target/debug/deps/libbitflags-de31228f2c0549ed.rlib" "/opt/rustwide/target/debug/deps/libatty-2ab16646ef190ebc.rlib" "/opt/rustwide/target/debug/deps/liblibc-a05f7562caa135ac.rlib" "/opt/rustwide/target/debug/deps/libansi_term-017778a055950e81.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-446a53c2e468675f.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-86fef9fb252a2d33.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-3bed9bfd30304751.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0e38eeb474a7b386.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-a846ed547b824740.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c9540f0a4fb9265d.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7d2ca66c92c356eb.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-147e2c808f949493.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-bd2a4369506670e9.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74bfdd0ce7d0ed48.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6777f47f1c491841.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b104f1790174f2be.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-db37898996f45c13.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-25b7435131fc4938.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9d4b6f3c097e876e.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3f953ad652ab829a.rlib" "-Wl,-Bdynamic" "-lsqlite3" "-lSDL2" "-lSDL2_mixer" "-lSDL2_image" "-lSDL2_ttf" "-lSDL2_gfx" "-lutil" "-ldl" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lSDL2_mixer
[INFO] [stdout]           /usr/bin/ld: cannot find -lSDL2_image
[INFO] [stdout]           /usr/bin/ld: cannot find -lSDL2_ttf
[INFO] [stdout]           /usr/bin/ld: cannot find -lSDL2_gfx
[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 `cavegen`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c6a2ff1ff20b6b9bcdb9b18d302d531ab372d2cb06c6be814f953c2515c046f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a2ff1ff20b6b9bcdb9b18d302d531ab372d2cb06c6be814f953c2515c046f6", kill_on_drop: false }`
[INFO] [stdout] c6a2ff1ff20b6b9bcdb9b18d302d531ab372d2cb06c6be814f953c2515c046f6