[INFO] fetching crate fuzzcheck 0.7.4...
[INFO] checking fuzzcheck-0.7.4 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate fuzzcheck 0.7.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate fuzzcheck 0.7.4 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fuzzcheck 0.7.4
[INFO] finished tweaking crates.io crate fuzzcheck 0.7.4
[INFO] tweaked toml for crates.io crate fuzzcheck 0.7.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded md5 v0.7.0
[INFO] [stderr]   Downloaded fuzzcheck_mutators_derive v0.7.0
[INFO] [stderr]   Downloaded fuzzcheck_common v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66f73c31810a727c114d6175c24c1f2311554ac972e325e8f5fd8833cfa21a10
[INFO] running `Command { std: "docker" "start" "-a" "66f73c31810a727c114d6175c24c1f2311554ac972e325e8f5fd8833cfa21a10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66f73c31810a727c114d6175c24c1f2311554ac972e325e8f5fd8833cfa21a10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f73c31810a727c114d6175c24c1f2311554ac972e325e8f5fd8833cfa21a10", kill_on_drop: false }`
[INFO] [stdout] 66f73c31810a727c114d6175c24c1f2311554ac972e325e8f5fd8833cfa21a10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd680bbd7f8281cc79a505cd41857a4c644730d9c25432e8efd0274a76d4ade8
[INFO] running `Command { std: "docker" "start" "-a" "fd680bbd7f8281cc79a505cd41857a4c644730d9c25432e8efd0274a76d4ade8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking fuzzcheck_common v0.7.0
[INFO] [stderr]     Checking object v0.26.1
[INFO] [stderr]    Compiling decent-synquote-alternative v0.4.0
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling fuzzcheck v0.7.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: src/code_coverage_sensor/instrumentation_pointers_linux.c:1:12: warning: '__llvm_profile_runtime' initialized and declared 'extern'
[INFO] [stderr] warning:     1 | extern int __llvm_profile_runtime = 0;
[INFO] [stderr] warning:       |            ^~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr]    Compiling fuzzcheck_mutators_derive v0.7.0
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.98s
[INFO] running `Command { std: "docker" "inspect" "fd680bbd7f8281cc79a505cd41857a4c644730d9c25432e8efd0274a76d4ade8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd680bbd7f8281cc79a505cd41857a4c644730d9c25432e8efd0274a76d4ade8", kill_on_drop: false }`
[INFO] [stdout] fd680bbd7f8281cc79a505cd41857a4c644730d9c25432e8efd0274a76d4ade8