[INFO] fetching crate rune-testing 0.6.15...
[INFO] testing rune-testing-0.6.15 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rune-testing 0.6.15 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rune-testing 0.6.15 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rune-testing 0.6.15
[INFO] finished tweaking crates.io crate rune-testing 0.6.15
[INFO] tweaked toml for crates.io crate rune-testing 0.6.15 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rune-testing 0.6.15 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21f4cf38aea0889d597aa94da294a702328689b05c50aca9d4f1f8ec5245ba80
[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" "21f4cf38aea0889d597aa94da294a702328689b05c50aca9d4f1f8ec5245ba80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21f4cf38aea0889d597aa94da294a702328689b05c50aca9d4f1f8ec5245ba80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21f4cf38aea0889d597aa94da294a702328689b05c50aca9d4f1f8ec5245ba80", kill_on_drop: false }`
[INFO] [stdout] 21f4cf38aea0889d597aa94da294a702328689b05c50aca9d4f1f8ec5245ba80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52ed87bb4a861308c08748c577d4a8650d174113d15f6d7235f0e81edb602273
[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" "52ed87bb4a861308c08748c577d4a8650d174113d15f6d7235f0e81edb602273", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling codespan-reporting v0.9.5
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling twox-hash v1.5.0
[INFO] [stderr]    Compiling num v0.3.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling pin-project v0.4.23
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling runestick v0.6.15
[INFO] [stderr]    Compiling rune v0.6.15
[INFO] [stderr]    Compiling rune-testing v0.6.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 39s
[INFO] running `Command { std: "docker" "inspect" "52ed87bb4a861308c08748c577d4a8650d174113d15f6d7235f0e81edb602273", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ed87bb4a861308c08748c577d4a8650d174113d15f6d7235f0e81edb602273", kill_on_drop: false }`
[INFO] [stdout] 52ed87bb4a861308c08748c577d4a8650d174113d15f6d7235f0e81edb602273
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0af39cbf14c2122c2c8fd8a025e8ee0e827849ff1d68330de65d0630a99fefce
[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" "0af39cbf14c2122c2c8fd8a025e8ee0e827849ff1d68330de65d0630a99fefce", kill_on_drop: false }`
[INFO] [stderr]    Compiling rune-testing v0.6.15 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `rune-testing`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name vm_general --edition=2018 tests/vm_general.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=06dc18df994b80ed -C extra-filename=-06dc18df994b80ed --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_executor=/opt/rustwide/target/debug/deps/libfutures_executor-4b644e4802e9e430.rlib --extern rune=/opt/rustwide/target/debug/deps/librune-782e7a80ffe9f350.rlib --extern rune_testing=/opt/rustwide/target/debug/deps/librune_testing-05f52ddeccbe4e82.rlib --extern runestick=/opt/rustwide/target/debug/deps/librunestick-b09a7eda545f9dbe.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-05ee3f408decbd00.rlib --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" "0af39cbf14c2122c2c8fd8a025e8ee0e827849ff1d68330de65d0630a99fefce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0af39cbf14c2122c2c8fd8a025e8ee0e827849ff1d68330de65d0630a99fefce", kill_on_drop: false }`
[INFO] [stdout] 0af39cbf14c2122c2c8fd8a025e8ee0e827849ff1d68330de65d0630a99fefce