[INFO] fetching crate single-session-app 0.8.4...
[INFO] checking single-session-app-0.8.4 against beta for pr-78714
[INFO] extracting crate single-session-app 0.8.4 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate single-session-app 0.8.4 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 single-session-app 0.8.4
[INFO] finished tweaking crates.io crate single-session-app 0.8.4
[INFO] tweaked toml for crates.io crate single-session-app 0.8.4 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40f243d3a273451f83ca669ddeb934bca6d2bed034be70d6f87ae62ebd7ce7be
[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" "40f243d3a273451f83ca669ddeb934bca6d2bed034be70d6f87ae62ebd7ce7be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40f243d3a273451f83ca669ddeb934bca6d2bed034be70d6f87ae62ebd7ce7be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40f243d3a273451f83ca669ddeb934bca6d2bed034be70d6f87ae62ebd7ce7be", kill_on_drop: false }`
[INFO] [stdout] 40f243d3a273451f83ca669ddeb934bca6d2bed034be70d6f87ae62ebd7ce7be
[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=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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 743e6bfd62c53283afeb59a9180003b48a6f5eb24388b16f379436f787fd443b
[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" "743e6bfd62c53283afeb59a9180003b48a6f5eb24388b16f379436f787fd443b", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking sp-std v2.0.0
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]     Checking hash-db v0.15.2
[INFO] [stderr]    Compiling parity-util-mem v0.7.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking environmental v1.1.2
[INFO] [stderr]     Checking dyn-clone v1.0.3
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]     Checking bitmask v0.5.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]     Checking trie-root v0.16.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking integer-sqrt v0.1.5
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking statrs v0.10.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling ref-cast-impl v1.0.3
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.1.3
[INFO] [stderr]    Compiling sp-debug-derive v2.0.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling dyn-clonable-impl v0.9.0
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling frame-support-procedural-tools-derive v2.0.0
[INFO] [stderr]     Checking sp-panic-handler v2.0.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling parity-util-mem-derive v0.1.0
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr] error: could not compile `tracing-attributes`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name tracing_attributes --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-attributes-0.1.11/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 -C metadata=c6accf5516e3b6ae -C extra-filename=-c6accf5516e3b6ae --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-db256853d8ab4a1e.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-ade5fbeeb7bccbe4.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-9d686db2812536c7.rlib --extern proc_macro --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" "743e6bfd62c53283afeb59a9180003b48a6f5eb24388b16f379436f787fd443b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "743e6bfd62c53283afeb59a9180003b48a6f5eb24388b16f379436f787fd443b", kill_on_drop: false }`
[INFO] [stdout] 743e6bfd62c53283afeb59a9180003b48a6f5eb24388b16f379436f787fd443b