[INFO] fetching crate shdrr 0.1.3...
[INFO] testing shdrr-0.1.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate shdrr 0.1.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate shdrr 0.1.3 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 shdrr 0.1.3
[INFO] finished tweaking crates.io crate shdrr 0.1.3
[INFO] tweaked toml for crates.io crate shdrr 0.1.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate shdrr 0.1.3 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] [stderr]     Blocking waiting for file lock on package cache
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] b7a6bc7a99ed149c6c329dc7f94fa8f2055c15f6f10a8ddd9a0fd146b31c0237
[INFO] running `Command { std: "docker" "start" "-a" "b7a6bc7a99ed149c6c329dc7f94fa8f2055c15f6f10a8ddd9a0fd146b31c0237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7a6bc7a99ed149c6c329dc7f94fa8f2055c15f6f10a8ddd9a0fd146b31c0237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7a6bc7a99ed149c6c329dc7f94fa8f2055c15f6f10a8ddd9a0fd146b31c0237", kill_on_drop: false }`
[INFO] [stdout] b7a6bc7a99ed149c6c329dc7f94fa8f2055c15f6f10a8ddd9a0fd146b31c0237
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bd6f18deb782de8a941fd44a0fd3bcae9776c31ac7baec7c6f4835a51731152
[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" "5bd6f18deb782de8a941fd44a0fd3bcae9776c31ac7baec7c6f4835a51731152", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling walkdir v2.2.8
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]    Compiling shaderc-sys v0.5.1
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling filetime v0.2.5
[INFO] [stderr]    Compiling atty v0.2.12
[INFO] [stderr]    Compiling inotify v0.6.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling notify v4.0.12
[INFO] [stderr] error: could not compile `clap`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name clap /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="ansi_term"' --cfg 'feature="atty"' --cfg 'feature="color"' --cfg 'feature="default"' --cfg 'feature="strsim"' --cfg 'feature="suggestions"' --cfg 'feature="vec_map"' -C metadata=faf9d2a913c986f3 -C extra-filename=-faf9d2a913c986f3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-017778a055950e81.rmeta --extern atty=/opt/rustwide/target/debug/deps/libatty-25bb661cda777994.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-b09835e188491adc.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-8b805b0832095d99.rmeta --extern textwrap=/opt/rustwide/target/debug/deps/libtextwrap-6ef6ac43b422c0da.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-a9a20247601aeda8.rmeta --extern vec_map=/opt/rustwide/target/debug/deps/libvec_map-8d2af087de360564.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: Pre-built library not found.  Falling back to from-source build
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5bd6f18deb782de8a941fd44a0fd3bcae9776c31ac7baec7c6f4835a51731152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bd6f18deb782de8a941fd44a0fd3bcae9776c31ac7baec7c6f4835a51731152", kill_on_drop: false }`
[INFO] [stdout] 5bd6f18deb782de8a941fd44a0fd3bcae9776c31ac7baec7c6f4835a51731152