[INFO] fetching crate libfuzzer-sys 0.4.7...
[INFO] checking libfuzzer-sys-0.4.7 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate libfuzzer-sys 0.4.7 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate libfuzzer-sys 0.4.7 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate libfuzzer-sys 0.4.7
[INFO] finished tweaking crates.io crate libfuzzer-sys 0.4.7
[INFO] tweaked toml for crates.io crate libfuzzer-sys 0.4.7 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e658b8aabce7238bc14aa65612f1031bcf1ccd847ea2df527941feccfdb12a1
[INFO] running `Command { std: "docker" "start" "-a" "5e658b8aabce7238bc14aa65612f1031bcf1ccd847ea2df527941feccfdb12a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e658b8aabce7238bc14aa65612f1031bcf1ccd847ea2df527941feccfdb12a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e658b8aabce7238bc14aa65612f1031bcf1ccd847ea2df527941feccfdb12a1", kill_on_drop: false }`
[INFO] [stdout] 5e658b8aabce7238bc14aa65612f1031bcf1ccd847ea2df527941feccfdb12a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abf7b16abc405adf6d35e4ef5349507ebb28a247b7cae5de977989841a2c6bab
[INFO] running `Command { std: "docker" "start" "-a" "abf7b16abc405adf6d35e4ef5349507ebb28a247b7cae5de977989841a2c6bab", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking arbitrary v1.3.2
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling libfuzzer-sys v0.4.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr] warning: libfuzzer-sys@0.4.7: Compiler version doesn't include clang or GCC: "c++" "--version"
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "abf7b16abc405adf6d35e4ef5349507ebb28a247b7cae5de977989841a2c6bab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abf7b16abc405adf6d35e4ef5349507ebb28a247b7cae5de977989841a2c6bab", kill_on_drop: false }`
[INFO] [stdout] abf7b16abc405adf6d35e4ef5349507ebb28a247b7cae5de977989841a2c6bab