[INFO] fetching crate bolero-libfuzzer 0.5.0...
[INFO] checking bolero-libfuzzer-0.5.0 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate bolero-libfuzzer 0.5.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate bolero-libfuzzer 0.5.0 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bolero-libfuzzer 0.5.0
[INFO] finished tweaking crates.io crate bolero-libfuzzer 0.5.0
[INFO] tweaked toml for crates.io crate bolero-libfuzzer 0.5.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff06a99f071f6ba6b4c7fe8101594e50689cbbfd16638b9875797a55fb733317
[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" "ff06a99f071f6ba6b4c7fe8101594e50689cbbfd16638b9875797a55fb733317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff06a99f071f6ba6b4c7fe8101594e50689cbbfd16638b9875797a55fb733317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff06a99f071f6ba6b4c7fe8101594e50689cbbfd16638b9875797a55fb733317", kill_on_drop: false }`
[INFO] [stdout] ff06a99f071f6ba6b4c7fe8101594e50689cbbfd16638b9875797a55fb733317
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "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] f304cb04c84855976ea0d361567cdab83198ce70ce36ed66559b0df57fcedc7e
[INFO] running `Command { std: "docker" "start" "-a" "f304cb04c84855976ea0d361567cdab83198ce70ce36ed66559b0df57fcedc7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bolero-libfuzzer v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking anyhow v1.0.32
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling bolero-generator-derive v0.5.2
[INFO] [stderr]     Checking bolero-generator v0.5.2
[INFO] [stderr]     Checking bolero-engine v0.5.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.83s
[INFO] running `Command { std: "docker" "inspect" "f304cb04c84855976ea0d361567cdab83198ce70ce36ed66559b0df57fcedc7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f304cb04c84855976ea0d361567cdab83198ce70ce36ed66559b0df57fcedc7e", kill_on_drop: false }`
[INFO] [stdout] f304cb04c84855976ea0d361567cdab83198ce70ce36ed66559b0df57fcedc7e