[INFO] fetching crate indexed_bitvec_core 4.0.0...
[INFO] checking indexed_bitvec_core-4.0.0 against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] extracting crate indexed_bitvec_core 4.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate indexed_bitvec_core 4.0.0 on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate indexed_bitvec_core 4.0.0
[INFO] finished tweaking crates.io crate indexed_bitvec_core 4.0.0
[INFO] tweaked toml for crates.io crate indexed_bitvec_core 4.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", 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] 594a96b1a3e18c3607e7336d82c239000c4598604d9b0590cd4416b2315ba2f2
[INFO] running `Command { std: "docker" "start" "-a" "594a96b1a3e18c3607e7336d82c239000c4598604d9b0590cd4416b2315ba2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "594a96b1a3e18c3607e7336d82c239000c4598604d9b0590cd4416b2315ba2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "594a96b1a3e18c3607e7336d82c239000c4598604d9b0590cd4416b2315ba2f2", kill_on_drop: false }`
[INFO] [stdout] 594a96b1a3e18c3607e7336d82c239000c4598604d9b0590cd4416b2315ba2f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 240099f5dc54ca2e376c39ec5ef2f88abba0a691e6ce3415a34e60b30599c9bd
[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" "240099f5dc54ca2e376c39ec5ef2f88abba0a691e6ce3415a34e60b30599c9bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking indexed_bitvec_core v4.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking quickcheck v0.8.5
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/word.rs:210:33
[INFO] [stdout]     |
[INFO] [stdout] 210 |         fn shrink(&self) -> Box<Iterator<Item = Self>> {
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.19s
[INFO] running `Command { std: "docker" "inspect" "240099f5dc54ca2e376c39ec5ef2f88abba0a691e6ce3415a34e60b30599c9bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "240099f5dc54ca2e376c39ec5ef2f88abba0a691e6ce3415a34e60b30599c9bd", kill_on_drop: false }`
[INFO] [stdout] 240099f5dc54ca2e376c39ec5ef2f88abba0a691e6ce3415a34e60b30599c9bd