[INFO] cloning repository https://github.com/KristonCosta/four-am
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KristonCosta/four-am" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKristonCosta%2Ffour-am", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKristonCosta%2Ffour-am'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c977ccb8a42a73fc0839d4a72dd51409b75e7d3c
[INFO] checking KristonCosta/four-am against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKristonCosta%2Ffour-am" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KristonCosta/four-am on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KristonCosta/four-am
[INFO] finished tweaking git repo https://github.com/KristonCosta/four-am
[INFO] tweaked toml for git repo https://github.com/KristonCosta/four-am written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/KristonCosta/four-am already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/TomGillen/legion.git`
[INFO] [stderr]     Updating git repository `https://github.com/ryanisaacg/quicksilver`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b33d881764b2a17d34ac032773ca678c0634c5caf10feeed97780843a9383ae0
[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" "b33d881764b2a17d34ac032773ca678c0634c5caf10feeed97780843a9383ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b33d881764b2a17d34ac032773ca678c0634c5caf10feeed97780843a9383ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b33d881764b2a17d34ac032773ca678c0634c5caf10feeed97780843a9383ae0", kill_on_drop: false }`
[INFO] [stdout] b33d881764b2a17d34ac032773ca678c0634c5caf10feeed97780843a9383ae0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 03b3000a2f8e30f35c1726371fa1b9ecba2017d0361e3a4fbab9dbf3a67d96a6
[INFO] running `Command { std: "docker" "start" "-a" "03b3000a2f8e30f35c1726371fa1b9ecba2017d0361e3a4fbab9dbf3a67d96a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling lalrpop-util v0.16.3
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling RustyXML v0.1.1
[INFO] [stderr]    Compiling base-x v0.2.8
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking array-macro v1.0.5
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking atomic_refcell v0.1.7
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling encoding-index-korean v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling utf-8 v0.6.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking gif v0.11.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling debug_unreachable v0.1.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]    Compiling encoding v0.2.33
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling ena v0.11.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]    Compiling stdweb v0.4.20
[INFO] [stderr]    Compiling four-am v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling tendril v0.2.4
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking crossbeam-epoch v0.9.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking euclid v0.20.14
[INFO] [stderr]     Checking pathfinding v2.1.4
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking libudev-sys v0.1.4
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling glow v0.4.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking elefont v0.1.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking 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 --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=2b14596262a4adc9 -C extra-filename=-2b14596262a4adc9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-58aa9227c8b3902c.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-98285b08aa84c694.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-66a44b7f4fcecc6e.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-56eae46330807fb7.rmeta --cap-lints allow --cap-lints=forbid` (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" "03b3000a2f8e30f35c1726371fa1b9ecba2017d0361e3a4fbab9dbf3a67d96a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03b3000a2f8e30f35c1726371fa1b9ecba2017d0361e3a4fbab9dbf3a67d96a6", kill_on_drop: false }`
[INFO] [stdout] 03b3000a2f8e30f35c1726371fa1b9ecba2017d0361e3a4fbab9dbf3a67d96a6