[INFO] fetching crate structopt-flags 0.3.6...
[INFO] testing structopt-flags-0.3.6 against 1.49.0 for beta-1.50-1
[INFO] extracting crate structopt-flags 0.3.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate structopt-flags 0.3.6 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 structopt-flags 0.3.6
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate structopt-flags 0.3.6
[INFO] tweaked toml for crates.io crate structopt-flags 0.3.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate structopt-flags 0.3.6 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 7e8a0aa6b23b405cbd3c244905ac7ef667ffb5c03d5d2e73048b12359f651ed9
[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" "7e8a0aa6b23b405cbd3c244905ac7ef667ffb5c03d5d2e73048b12359f651ed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e8a0aa6b23b405cbd3c244905ac7ef667ffb5c03d5d2e73048b12359f651ed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e8a0aa6b23b405cbd3c244905ac7ef667ffb5c03d5d2e73048b12359f651ed9", kill_on_drop: false }`
[INFO] [stdout] 7e8a0aa6b23b405cbd3c244905ac7ef667ffb5c03d5d2e73048b12359f651ed9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] fc33535ed202f198787050665a379b645a697a5738f6d774c1c0a11d24ff604b
[INFO] running `Command { std: "docker" "start" "-a" "fc33535ed202f198787050665a379b645a697a5738f6d774c1c0a11d24ff604b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.0
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]    Compiling structopt v0.3.15
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling structopt-flags v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.15s
[INFO] running `Command { std: "docker" "inspect" "fc33535ed202f198787050665a379b645a697a5738f6d774c1c0a11d24ff604b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc33535ed202f198787050665a379b645a697a5738f6d774c1c0a11d24ff604b", kill_on_drop: false }`
[INFO] [stdout] fc33535ed202f198787050665a379b645a697a5738f6d774c1c0a11d24ff604b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] f658e238eb636038bfeb1dfe645d81157b83d609839b08355983ba2233d8132c
[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" "f658e238eb636038bfeb1dfe645d81157b83d609839b08355983ba2233d8132c", kill_on_drop: false }`
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]    Compiling escargot v0.5.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling predicates v1.0.5
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling assert_cmd v0.11.1
[INFO] [stderr]    Compiling structopt-flags v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `structopt-flags`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name logopt --edition=2018 tests/logopt.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' -C metadata=3c50cde7f786dbd3 -C extra-filename=-3c50cde7f786dbd3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern assert_cmd=/opt/rustwide/target/debug/deps/libassert_cmd-93895bb31d09e74c.rlib --extern escargot=/opt/rustwide/target/debug/deps/libescargot-47aaf524d1721ae4.rlib --extern failure=/opt/rustwide/target/debug/deps/libfailure-54d272e78628460f.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-84fac41c4b644956.rlib --extern predicates=/opt/rustwide/target/debug/deps/libpredicates-ce5d61dce0f4c3e5.rlib --extern skeptic=/opt/rustwide/target/debug/deps/libskeptic-e11530d648c3ed48.rlib --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-9dc52976b1417369.rlib --extern structopt_flags=/opt/rustwide/target/debug/deps/libstructopt_flags-24ffa8631777396d.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" "f658e238eb636038bfeb1dfe645d81157b83d609839b08355983ba2233d8132c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f658e238eb636038bfeb1dfe645d81157b83d609839b08355983ba2233d8132c", kill_on_drop: false }`
[INFO] [stdout] f658e238eb636038bfeb1dfe645d81157b83d609839b08355983ba2233d8132c