[INFO] fetching crate flexi_logger 0.16.3...
[INFO] testing flexi_logger-0.16.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate flexi_logger 0.16.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate flexi_logger 0.16.3 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 flexi_logger 0.16.3
[INFO] finished tweaking crates.io crate flexi_logger 0.16.3
[INFO] tweaked toml for crates.io crate flexi_logger 0.16.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate flexi_logger 0.16.3 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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 24a4fd1e03d4170a5137b91b9b6ac0515561493445fe0a65e25cf78364457eb2
[INFO] running `Command { std: "docker" "start" "-a" "24a4fd1e03d4170a5137b91b9b6ac0515561493445fe0a65e25cf78364457eb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24a4fd1e03d4170a5137b91b9b6ac0515561493445fe0a65e25cf78364457eb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24a4fd1e03d4170a5137b91b9b6ac0515561493445fe0a65e25cf78364457eb2", kill_on_drop: false }`
[INFO] [stdout] 24a4fd1e03d4170a5137b91b9b6ac0515561493445fe0a65e25cf78364457eb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de58ae8fb3885d5b5b4a4b90839a350f3c2024d556aebe21bfe3246e27fbdd04
[INFO] running `Command { std: "docker" "start" "-a" "de58ae8fb3885d5b5b4a4b90839a350f3c2024d556aebe21bfe3246e27fbdd04", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling flexi_logger v0.16.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.46s
[INFO] running `Command { std: "docker" "inspect" "de58ae8fb3885d5b5b4a4b90839a350f3c2024d556aebe21bfe3246e27fbdd04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de58ae8fb3885d5b5b4a4b90839a350f3c2024d556aebe21bfe3246e27fbdd04", kill_on_drop: false }`
[INFO] [stdout] de58ae8fb3885d5b5b4a4b90839a350f3c2024d556aebe21bfe3246e27fbdd04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 74b869611f21546dbeda79c0b09e8d83bacd04f866a2cb2c96399320facc8e93
[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" "74b869611f21546dbeda79c0b09e8d83bacd04f866a2cb2c96399320facc8e93", kill_on_drop: false }`
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling semver-parser v0.9.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling version-sync v0.9.1
[INFO] [stderr]    Compiling flexi_logger v0.16.3 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `flexi_logger`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name flexi_logger --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="atty"' --cfg 'feature="colors"' --cfg 'feature="default"' --cfg 'feature="lazy_static"' --cfg 'feature="regex"' --cfg 'feature="textfilter"' --cfg 'feature="yansi"' -C metadata=b86cef925e41fc70 -C extra-filename=-b86cef925e41fc70 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atty=/opt/rustwide/target/debug/deps/libatty-a56a033fb6ef07fa.rlib --extern chrono=/opt/rustwide/target/debug/deps/libchrono-5fd9f7f8c1d8d832.rlib --extern glob=/opt/rustwide/target/debug/deps/libglob-35a1b8661089f616.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7895c92c6d278491.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-e85f58044ae91ffe.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-62e055e6c3a1f4aa.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-9adacf9dd36fe397.so --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-e6d6dd24f6e45504.rlib --extern version_sync=/opt/rustwide/target/debug/deps/libversion_sync-d146687ab31798b6.rlib --extern yansi=/opt/rustwide/target/debug/deps/libyansi-6b6ecc36058b7bae.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" "74b869611f21546dbeda79c0b09e8d83bacd04f866a2cb2c96399320facc8e93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b869611f21546dbeda79c0b09e8d83bacd04f866a2cb2c96399320facc8e93", kill_on_drop: false }`
[INFO] [stdout] 74b869611f21546dbeda79c0b09e8d83bacd04f866a2cb2c96399320facc8e93