[INFO] fetching crate sarekt 0.0.4...
[INFO] checking sarekt-0.0.4 against beta for pr-78714
[INFO] extracting crate sarekt 0.0.4 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate sarekt 0.0.4 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sarekt 0.0.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate sarekt 0.0.4
[INFO] tweaked toml for crates.io crate sarekt 0.0.4 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate sarekt 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25176a7d98bef51d904bf78be83be6f590a1dfa9f89ded2d6da468f06720e11d
[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" "25176a7d98bef51d904bf78be83be6f590a1dfa9f89ded2d6da468f06720e11d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25176a7d98bef51d904bf78be83be6f590a1dfa9f89ded2d6da468f06720e11d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25176a7d98bef51d904bf78be83be6f590a1dfa9f89ded2d6da468f06720e11d", kill_on_drop: false }`
[INFO] [stdout] 25176a7d98bef51d904bf78be83be6f590a1dfa9f89ded2d6da468f06720e11d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c93886b99ce8f193d9d46fd02b9894a001bd6cb430b795acb9bf662f4acee157
[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" "c93886b99ce8f193d9d46fd02b9894a001bd6cb430b795acb9bf662f4acee157", 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 libc v0.2.68
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling xml-rs v0.8.1
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling wide v0.4.6
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling inflections v1.1.1
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking slotmap v0.4.0
[INFO] [stderr]     Checking safe-transmute v0.11.0-rc.2
[INFO] [stderr]     Checking instant v0.1.2
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling vk-mem v0.2.2
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]    Compiling lexical v2.2.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking png v0.16.2
[INFO] [stderr]    Compiling shaderc-sys v0.6.2
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]     Checking ultraviolet v0.4.6
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking ash v0.30.0
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]     Checking simple_logger v1.6.0
[INFO] [stderr] error: could not compile `serde`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.106/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=6319294348dc1d4f -C extra-filename=-6319294348dc1d4f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_boxed_path --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero --cfg core_try_from --cfg num_nonzero_signed --cfg std_atomic64 --cfg std_atomic` (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: System installed library not found.  Falling back to build from source
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c93886b99ce8f193d9d46fd02b9894a001bd6cb430b795acb9bf662f4acee157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c93886b99ce8f193d9d46fd02b9894a001bd6cb430b795acb9bf662f4acee157", kill_on_drop: false }`
[INFO] [stdout] c93886b99ce8f193d9d46fd02b9894a001bd6cb430b795acb9bf662f4acee157