[INFO] fetching crate test-fuzz-runtime 0.1.0-alpha.3...
[INFO] checking test-fuzz-runtime-0.1.0-alpha.3 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate test-fuzz-runtime 0.1.0-alpha.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate test-fuzz-runtime 0.1.0-alpha.3 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate test-fuzz-runtime 0.1.0-alpha.3
[INFO] finished tweaking crates.io crate test-fuzz-runtime 0.1.0-alpha.3
[INFO] tweaked toml for crates.io crate test-fuzz-runtime 0.1.0-alpha.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded time v0.1.44
[INFO] [stderr]   Downloaded ryu v1.0.5
[INFO] [stderr]   Downloaded semver-parser v0.7.0
[INFO] [stderr]   Downloaded semver v0.10.0
[INFO] [stderr]   Downloaded fuchsia-cprng v0.1.1
[INFO] [stderr]   Downloaded rdrand v0.4.0
[INFO] [stderr]   Downloaded gcc v0.3.55
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] [stderr]   Downloaded serde_derive v1.0.117
[INFO] [stderr]   Downloaded serde v1.0.117
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded cargo_metadata v0.11.4
[INFO] [stderr]   Downloaded test-fuzz-dirs v0.1.0-alpha.3
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded libc v0.2.80
[INFO] [stderr]   Downloaded half v1.6.0
[INFO] [stderr]   Downloaded serde_cbor v0.11.1
[INFO] [stderr]   Downloaded rust-crypto v0.2.36
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded wasi v0.10.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded rand_core v0.3.1
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded serde_json v1.0.59
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e18936f03f8b80173bd275499f9c0f86dfae93a2bfb6f619ea23308e074b1c5d
[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" "e18936f03f8b80173bd275499f9c0f86dfae93a2bfb6f619ea23308e074b1c5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e18936f03f8b80173bd275499f9c0f86dfae93a2bfb6f619ea23308e074b1c5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e18936f03f8b80173bd275499f9c0f86dfae93a2bfb6f619ea23308e074b1c5d", kill_on_drop: false }`
[INFO] [stdout] e18936f03f8b80173bd275499f9c0f86dfae93a2bfb6f619ea23308e074b1c5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--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] efdf78e56ee5b97ccbf97036474899368c66d4511285209cf8d4ba5d69169eb1
[INFO] running `Command { std: "docker" "start" "-a" "efdf78e56ee5b97ccbf97036474899368c66d4511285209cf8d4ba5d69169eb1", kill_on_drop: false }`
[INFO] [stderr]     Checking semver v0.10.0
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking cargo_metadata v0.11.4
[INFO] [stderr]     Checking test-fuzz-dirs v0.1.0-alpha.3
[INFO] [stderr]     Checking test-fuzz-runtime v0.1.0-alpha.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.32s
[INFO] running `Command { std: "docker" "inspect" "efdf78e56ee5b97ccbf97036474899368c66d4511285209cf8d4ba5d69169eb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efdf78e56ee5b97ccbf97036474899368c66d4511285209cf8d4ba5d69169eb1", kill_on_drop: false }`
[INFO] [stdout] efdf78e56ee5b97ccbf97036474899368c66d4511285209cf8d4ba5d69169eb1