[INFO] fetching crate zellij-server 0.15.0...
[INFO] testing zellij-server-0.15.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate zellij-server 0.15.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate zellij-server 0.15.0 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 zellij-server 0.15.0
[INFO] finished tweaking crates.io crate zellij-server 0.15.0
[INFO] tweaked toml for crates.io crate zellij-server 0.15.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enumset_derive v0.5.5
[INFO] [stderr]   Downloaded enumset v1.0.7
[INFO] [stderr]   Downloaded wast v37.0.0
[INFO] [stderr]   Downloaded wasmer-wasi v1.0.2
[INFO] [stderr]   Downloaded wat v1.0.39
[INFO] [stderr]   Downloaded zellij-utils v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7dc233ea335ec6b4407c5e39b43fe2b2cbd4899845b3fd9076320f8e48313d1a
[INFO] running `Command { std: "docker" "start" "-a" "7dc233ea335ec6b4407c5e39b43fe2b2cbd4899845b3fd9076320f8e48313d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dc233ea335ec6b4407c5e39b43fe2b2cbd4899845b3fd9076320f8e48313d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dc233ea335ec6b4407c5e39b43fe2b2cbd4899845b3fd9076320f8e48313d1a", kill_on_drop: false }`
[INFO] [stdout] 7dc233ea335ec6b4407c5e39b43fe2b2cbd4899845b3fd9076320f8e48313d1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 59434c04739056eb947bded967d282034e8388be08ac8955a3dce160c26f41d8
[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" "59434c04739056eb947bded967d282034e8388be08ac8955a3dce160c26f41d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling target-lexicon v0.11.2
[INFO] [stderr]    Compiling more-asserts v0.2.1
[INFO] [stderr]    Compiling cranelift-entity v0.68.0
[INFO] [stderr]    Compiling wasmparser v0.65.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.68.0
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v1.0.2
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling intmap v0.7.0
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling colors-transform v0.2.11
[INFO] [stderr]    Compiling wasmer-vm v1.0.2
[INFO] [stderr]    Compiling wast v37.0.0
[INFO] [stderr]    Compiling spinning v0.1.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling memmap2 v0.2.3
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling daemonize v0.4.1
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]    Compiling vte v0.3.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.68.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling directories-next v2.0.0
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling typetag-impl v0.1.7
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling strip-ansi-escapes v0.1.0
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling wasmer-derive v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling crossbeam v0.8.1
[INFO] [stderr]    Compiling vte v0.10.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling regalloc v0.0.31
[INFO] [stderr]    Compiling polling v2.1.0
[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-0.19.1/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=8b105921a1eaa555 -C extra-filename=-8b105921a1eaa555 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-f89ae4b715176e2d.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-38c8a3e888ecb06a.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-01feaa3f8fb69fd7.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" "59434c04739056eb947bded967d282034e8388be08ac8955a3dce160c26f41d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59434c04739056eb947bded967d282034e8388be08ac8955a3dce160c26f41d8", kill_on_drop: false }`
[INFO] [stdout] 59434c04739056eb947bded967d282034e8388be08ac8955a3dce160c26f41d8