[INFO] crate tophat 0.2.1 is already in cache
[INFO] testing tophat-0.2.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate tophat 0.2.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tophat 0.2.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tophat 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tophat 0.2.1
[INFO] tweaked toml for crates.io crate tophat 0.2.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate tophat 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] feb1a4eef6db28b734bce472f4e1fb84cb74958791d7eb80f0d0b15803a22187
[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" "feb1a4eef6db28b734bce472f4e1fb84cb74958791d7eb80f0d0b15803a22187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "feb1a4eef6db28b734bce472f4e1fb84cb74958791d7eb80f0d0b15803a22187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feb1a4eef6db28b734bce472f4e1fb84cb74958791d7eb80f0d0b15803a22187", kill_on_drop: false }`
[INFO] [stdout] feb1a4eef6db28b734bce472f4e1fb84cb74958791d7eb80f0d0b15803a22187
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95a99763dfc1b3c3e0b44cec7c91d5c865929693c52adef6d022b5018b7f5e72
[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" "95a99763dfc1b3c3e0b44cec7c91d5c865929693c52adef6d022b5018b7f5e72", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling pin-project-lite v0.1.4
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling byte-pool v0.2.1
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling pin-project v0.4.17
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling piper v0.1.2
[INFO] [stderr]    Compiling tophat v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.83s
[INFO] running `Command { std: "docker" "inspect" "95a99763dfc1b3c3e0b44cec7c91d5c865929693c52adef6d022b5018b7f5e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95a99763dfc1b3c3e0b44cec7c91d5c865929693c52adef6d022b5018b7f5e72", kill_on_drop: false }`
[INFO] [stdout] 95a99763dfc1b3c3e0b44cec7c91d5c865929693c52adef6d022b5018b7f5e72
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab21d28af15f1b5d92ccc2f6b7136977b50cf902e784340c1fc797a0896eef3f
[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" "ab21d28af15f1b5d92ccc2f6b7136977b50cf902e784340c1fc797a0896eef3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling scoped-tls-hkt v0.1.2
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling smol v0.1.10
[INFO] [stderr]    Compiling tophat v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `tophat`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name basic --edition=2018 tests/basic.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' -C metadata=f5b183ed599a707f -C extra-filename=-f5b183ed599a707f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern byte_pool=/opt/rustwide/target/debug/deps/libbyte_pool-15071dcbb3ffa4f8.rlib --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-3847b1d963e5b5d3.rlib --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-cde5d1c7c468dd48.rlib --extern futures_timer=/opt/rustwide/target/debug/deps/libfutures_timer-40ae6f845f68edc3.rlib --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-ba0ad4224dd8833f.rlib --extern http=/opt/rustwide/target/debug/deps/libhttp-02e0bc61e4b2dfb3.rlib --extern httparse=/opt/rustwide/target/debug/deps/libhttparse-e0ff37260b32465b.rlib --extern httpdate=/opt/rustwide/target/debug/deps/libhttpdate-1eb370f3c1c0568c.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-03dc560a77c5aa3e.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-6126053784ee4a98.rlib --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-0dcbeadfe19bbe19.rlib --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-e6a929fbed197d6b.rlib --extern piper=/opt/rustwide/target/debug/deps/libpiper-a880223a706c6fa9.rlib --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-30a9b2c913489bab.rlib --extern smol=/opt/rustwide/target/debug/deps/libsmol-2c76b6ff3ff1adda.rlib --extern tophat=/opt/rustwide/target/debug/deps/libtophat-538bd90edcd0875d.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" "ab21d28af15f1b5d92ccc2f6b7136977b50cf902e784340c1fc797a0896eef3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab21d28af15f1b5d92ccc2f6b7136977b50cf902e784340c1fc797a0896eef3f", kill_on_drop: false }`
[INFO] [stdout] ab21d28af15f1b5d92ccc2f6b7136977b50cf902e784340c1fc797a0896eef3f