[INFO] fetching crate emulsion 9.0.0...
[INFO] testing emulsion-9.0.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate emulsion 9.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate emulsion 9.0.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate emulsion 9.0.0
[INFO] finished tweaking crates.io crate emulsion 9.0.0
[INFO] tweaked toml for crates.io crate emulsion 9.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate emulsion 9.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0eac4a59a63282f4a0bb2ab4e13871f0399ea6f14faf9259cc6bc4c7bf25513
[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" "b0eac4a59a63282f4a0bb2ab4e13871f0399ea6f14faf9259cc6bc4c7bf25513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0eac4a59a63282f4a0bb2ab4e13871f0399ea6f14faf9259cc6bc4c7bf25513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0eac4a59a63282f4a0bb2ab4e13871f0399ea6f14faf9259cc6bc4c7bf25513", kill_on_drop: false }`
[INFO] [stdout] b0eac4a59a63282f4a0bb2ab4e13871f0399ea6f14faf9259cc6bc4c7bf25513
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12afbd7041e15b9b514acf1eb8502c224345abd7b639eb84322fee7065cc2cb3
[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" "12afbd7041e15b9b514acf1eb8502c224345abd7b639eb84322fee7065cc2cb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling once_cell v1.7.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling bytemuck v1.5.1
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling ttf-parser v0.6.2
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.4
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling unicode-general-category v0.2.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling weezl v0.1.4
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling ttf-parser v0.9.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling float-cmp v0.5.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling unicode-bidi-mirroring v0.1.0
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling unicode-ccc v0.1.1
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling xmlparser v0.13.3
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling cgmath v0.18.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling unicode-script v0.5.2
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling pico-args v0.4.0
[INFO] [stderr]    Compiling xmlwriter v0.1.0
[INFO] [stderr]    Compiling unicode-vo v0.1.0
[INFO] [stderr]    Compiling rctree v0.3.3
[INFO] [stderr]    Compiling trash v2.0.0
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling takeable-option v0.5.0
[INFO] [stderr]    Compiling ttf-parser v0.12.0
[INFO] [stderr]    Compiling emulsion v9.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling mutate_once v0.1.1
[INFO] [stderr]    Compiling any_ascii v0.1.7
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling rgb v0.8.25
[INFO] [stderr]    Compiling safe_arch v0.5.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling data-url v0.1.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling tinyvec v1.1.1
[INFO] [stderr]    Compiling owned_ttf_parser v0.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling gif v0.11.2
[INFO] [stderr]    Compiling wayland-sys v0.28.5
[INFO] [stderr]    Compiling wayland-sys v0.27.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling kurbo v0.8.1
[INFO] [stderr]    Compiling roxmltree v0.14.1
[INFO] [stderr]    Compiling svgtypes v0.5.0
[INFO] [stderr]    Compiling kamadak-exif v0.5.3
[INFO] [stderr]    Compiling lexical-sort v0.3.1
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling svgfilters v0.3.0
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling rusttype v0.9.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]    Compiling simplecss v0.2.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling andrew v0.3.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling sys-info v0.9.0
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling memmap2 v0.2.2
[INFO] [stderr]    Compiling gethostname v0.2.1
[INFO] [stderr]    Compiling os_pipe v0.9.2
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling idna v0.2.2
[INFO] [stderr]    Compiling tiny-skia v0.5.1
[INFO] [stderr]    Compiling rustybuzz v0.3.0
[INFO] [stderr]    Compiling backtrace v0.3.56
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling wayland-scanner v0.28.5
[INFO] [stderr]    Compiling wayland-scanner v0.27.0
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr] error: could not compile `nix`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nix --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.20.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=1 -C embed-bitcode=no -C debuginfo=2 -C debug-assertions=on -C metadata=b8d2c1d02c8a29ff -C extra-filename=-b8d2c1d02c8a29ff --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-68f06cd2c14ea58e.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-5ad8b3167c67a6c3.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-0587b82deb9d1d18.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "12afbd7041e15b9b514acf1eb8502c224345abd7b639eb84322fee7065cc2cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12afbd7041e15b9b514acf1eb8502c224345abd7b639eb84322fee7065cc2cb3", kill_on_drop: false }`
[INFO] [stdout] 12afbd7041e15b9b514acf1eb8502c224345abd7b639eb84322fee7065cc2cb3
