[INFO] fetching crate megafb 0.0.1...
[INFO] testing megafb-0.0.1 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate megafb 0.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate megafb 0.0.1 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 crates.io crate megafb 0.0.1
[INFO] finished tweaking crates.io crate megafb 0.0.1
[INFO] tweaked toml for crates.io crate megafb 0.0.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate megafb 0.0.1 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]  Downloading crates ...
[INFO] [stderr]   Downloaded cmake v0.1.40
[INFO] [stderr]   Downloaded parking_lot v0.8.0
[INFO] [stderr]   Downloaded rand_core v0.4.0
[INFO] [stderr]   Downloaded winit v0.19.1
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.48
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.48
[INFO] [stderr]   Downloaded gfx-backend-vulkan v0.2.3
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.48
[INFO] [stderr]   Downloaded gfx-hal v0.2.1
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.48
[INFO] [stderr]   Downloaded lock_api v0.2.0
[INFO] [stderr]   Downloaded downcast-rs v1.0.4
[INFO] [stderr]   Downloaded x11-dl v2.18.3
[INFO] [stderr]   Downloaded derivative v1.0.2
[INFO] [stderr]   Downloaded stb_truetype v0.2.6
[INFO] [stderr]   Downloaded parking_lot_core v0.5.0
[INFO] [stderr]   Downloaded backtrace v0.3.33
[INFO] [stderr]   Downloaded range-alloc v0.1.0
[INFO] [stderr]   Downloaded core-video-sys v0.1.3
[INFO] [stderr]   Downloaded cc v1.0.37
[INFO] [stderr]   Downloaded winit v0.20.0-alpha2
[INFO] [stderr]   Downloaded js-sys v0.3.25
[INFO] [stderr]   Downloaded spirv_cross v0.12.1
[INFO] [stderr]   Downloaded spirv_cross v0.15.0
[INFO] [stderr]   Downloaded ash v0.29.0
[INFO] [stderr]   Downloaded d3d12 v0.1.0
[INFO] [stderr]   Downloaded storage-map v0.1.2
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.6.3
[INFO] [stderr]   Downloaded gfx-backend-metal v0.2.3
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.48
[INFO] [stderr]   Downloaded wayland-sys v0.23.5
[INFO] [stderr]   Downloaded cocoa v0.18.4
[INFO] [stderr]   Downloaded wayland-scanner v0.23.5
[INFO] [stderr]   Downloaded metal v0.15.0
[INFO] [stderr]   Downloaded shaderc v0.6.0
[INFO] [stderr]   Downloaded wayland-commons v0.23.5
[INFO] [stderr]   Downloaded gfx-backend-dx12 v0.2.1
[INFO] [stderr]   Downloaded wayland-client v0.23.5
[INFO] [stderr]   Downloaded wayland-protocols v0.23.5
[INFO] [stderr]   Downloaded syn v0.15.40
[INFO] [stderr]   Downloaded rusttype v0.7.7
[INFO] [stderr]   Downloaded dispatch v0.1.4
[INFO] [stderr]   Downloaded log v0.4.7
[INFO] [stderr]   Downloaded shaderc-sys v0.6.0
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71b85611980072cf643d615186b26596eec9bda62d16769b09f75bf5c67da476
[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" "71b85611980072cf643d615186b26596eec9bda62d16769b09f75bf5c67da476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71b85611980072cf643d615186b26596eec9bda62d16769b09f75bf5c67da476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b85611980072cf643d615186b26596eec9bda62d16769b09f75bf5c67da476", kill_on_drop: false }`
[INFO] [stdout] 71b85611980072cf643d615186b26596eec9bda62d16769b09f75bf5c67da476
[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=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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ccb8459dcc4efd53f933e27b70b3a65a49dab2e5ff8d745e32ba24ea1cf0cdc
[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" "8ccb8459dcc4efd53f933e27b70b3a65a49dab2e5ff8d745e32ba24ea1cf0cdc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling downcast-rs v1.0.4
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.15
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling lock_api v0.2.0
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling stb_truetype v0.2.6
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling wayland-scanner v0.23.5
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling shaderc-sys v0.6.0
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-sys v0.23.5
[INFO] [stderr]    Compiling rusttype v0.7.7
[INFO] [stderr]    Compiling backtrace v0.3.33
[INFO] [stderr]    Compiling wayland-client v0.23.5
[INFO] [stderr]    Compiling wayland-protocols v0.23.5
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr] error: could not compile `nix`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nix /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.14.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=33ad3221bbac628d -C extra-filename=-33ad3221bbac628d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-197bd07da58b7856.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-3ffe9d8230e44ab9.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-6b37576b7d4ba56e.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-b8d4cd78d6d6c0df.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: Pre-built library not found.  Falling back to from-source build
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8ccb8459dcc4efd53f933e27b70b3a65a49dab2e5ff8d745e32ba24ea1cf0cdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ccb8459dcc4efd53f933e27b70b3a65a49dab2e5ff8d745e32ba24ea1cf0cdc", kill_on_drop: false }`
[INFO] [stdout] 8ccb8459dcc4efd53f933e27b70b3a65a49dab2e5ff8d745e32ba24ea1cf0cdc