[INFO] fetching crate arbitrary 1.3.1...
[INFO] checking arbitrary-1.3.1 against master#36b61e5aa593cc60cc92fc548b0d351e414aee2a for pr-116930
[INFO] extracting crate arbitrary 1.3.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate arbitrary 1.3.1 on toolchain 36b61e5aa593cc60cc92fc548b0d351e414aee2a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arbitrary 1.3.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate arbitrary 1.3.1
[INFO] tweaked toml for crates.io crate arbitrary 1.3.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate arbitrary 1.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_arbitrary v1.3.1
[INFO] [stderr]   Downloaded exhaustigen v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e247d54f496ef52dab06a11b6d927907ac22d219e27e9a670ea708cd6ab56789
[INFO] running `Command { std: "docker" "start" "-a" "e247d54f496ef52dab06a11b6d927907ac22d219e27e9a670ea708cd6ab56789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e247d54f496ef52dab06a11b6d927907ac22d219e27e9a670ea708cd6ab56789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e247d54f496ef52dab06a11b6d927907ac22d219e27e9a670ea708cd6ab56789", kill_on_drop: false }`
[INFO] [stdout] e247d54f496ef52dab06a11b6d927907ac22d219e27e9a670ea708cd6ab56789
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bc7555dabe7cbdc6774a0e8047d3b8c56a2636c294237f318ee939bc89ec70e
[INFO] running `Command { std: "docker" "start" "-a" "7bc7555dabe7cbdc6774a0e8047d3b8c56a2636c294237f318ee939bc89ec70e", kill_on_drop: false }`
[INFO] [stderr]     Checking exhaustigen v0.1.0
[INFO] [stderr]     Checking arbitrary v1.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "7bc7555dabe7cbdc6774a0e8047d3b8c56a2636c294237f318ee939bc89ec70e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bc7555dabe7cbdc6774a0e8047d3b8c56a2636c294237f318ee939bc89ec70e", kill_on_drop: false }`
[INFO] [stdout] 7bc7555dabe7cbdc6774a0e8047d3b8c56a2636c294237f318ee939bc89ec70e