[INFO] fetching crate rtdlib 1.6.3...
[INFO] checking rtdlib-1.6.3 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate rtdlib 1.6.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rtdlib 1.6.3 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rtdlib 1.6.3
[INFO] finished tweaking crates.io crate rtdlib 1.6.3
[INFO] tweaked toml for crates.io crate rtdlib 1.6.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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] 38a3dc0cb6ed9306d50c0e2c6ccbd089846ae19d4a22849ba76673f9e2177b8f
[INFO] running `Command { std: "docker" "start" "-a" "38a3dc0cb6ed9306d50c0e2c6ccbd089846ae19d4a22849ba76673f9e2177b8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38a3dc0cb6ed9306d50c0e2c6ccbd089846ae19d4a22849ba76673f9e2177b8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38a3dc0cb6ed9306d50c0e2c6ccbd089846ae19d4a22849ba76673f9e2177b8f", kill_on_drop: false }`
[INFO] [stdout] 38a3dc0cb6ed9306d50c0e2c6ccbd089846ae19d4a22849ba76673f9e2177b8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cd1470c86a62da496a6f0b76759898e7064c9ae64b7fa113ae8a4d97760f665
[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" "4cd1470c86a62da496a6f0b76759898e7064c9ae64b7fa113ae8a4d97760f665", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking rtdlib v1.6.3 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `rtdlib`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rtdlib --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -Cembed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=22d6c63816f26b42 -C extra-filename=-22d6c63816f26b42 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-0fee10f4d9a520d9.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-cce7651b310d6192.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-1a90e8bbd5e7840d.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-93c72174ebe7fb3a.rmeta --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" "4cd1470c86a62da496a6f0b76759898e7064c9ae64b7fa113ae8a4d97760f665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd1470c86a62da496a6f0b76759898e7064c9ae64b7fa113ae8a4d97760f665", kill_on_drop: false }`
[INFO] [stdout] 4cd1470c86a62da496a6f0b76759898e7064c9ae64b7fa113ae8a4d97760f665