[INFO] fetching crate growable-bloom-filter 2.0.1...
[INFO] checking growable-bloom-filter-2.0.1 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] extracting crate growable-bloom-filter 2.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate growable-bloom-filter 2.0.1 on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate growable-bloom-filter 2.0.1
[INFO] finished tweaking crates.io crate growable-bloom-filter 2.0.1
[INFO] tweaked toml for crates.io crate growable-bloom-filter 2.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77d99e9630aecb5ed491bff2d0199c604cd6f964be06a1229df98ff5311581f3
[INFO] running `Command { std: "docker" "start" "-a" "77d99e9630aecb5ed491bff2d0199c604cd6f964be06a1229df98ff5311581f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77d99e9630aecb5ed491bff2d0199c604cd6f964be06a1229df98ff5311581f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77d99e9630aecb5ed491bff2d0199c604cd6f964be06a1229df98ff5311581f3", kill_on_drop: false }`
[INFO] [stdout] 77d99e9630aecb5ed491bff2d0199c604cd6f964be06a1229df98ff5311581f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68579545d93b7548dbd714458dbd238ce7dc602d188640daa4de751eb0257ba3
[INFO] running `Command { std: "docker" "start" "-a" "68579545d93b7548dbd714458dbd238ce7dc602d188640daa4de751eb0257ba3", kill_on_drop: false }`
[INFO] [stderr]     Checking xxhash-rust v0.8.7
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking serde_bytes v0.11.12
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking growable-bloom-filter v2.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0506]: cannot assign to `self.buffer[_]` because it is borrowed
[INFO] [stdout]    --> src/lib.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 128 |         for (byte, mask) in self.index_iterator(h1, h2) {
[INFO] [stdout]     |                             ---------------------------
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             `self.buffer[_]` is borrowed here
[INFO] [stdout]     |                             borrow later used here
[INFO] [stdout] 129 |             self.buffer[byte] |= mask;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^ `self.buffer[_]` is assigned to here but it was already borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0506]: cannot assign to `self.buffer[_]` because it is borrowed
[INFO] [stdout]    --> src/lib.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 128 |         for (byte, mask) in self.index_iterator(h1, h2) {
[INFO] [stdout]     |                             ---------------------------
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             `self.buffer[_]` is borrowed here
[INFO] [stdout]     |                             borrow later used here
[INFO] [stdout] 129 |             self.buffer[byte] |= mask;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^ `self.buffer[_]` is assigned to here but it was already borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0506`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `growable-bloom-filter` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0506`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `growable-bloom-filter` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "68579545d93b7548dbd714458dbd238ce7dc602d188640daa4de751eb0257ba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68579545d93b7548dbd714458dbd238ce7dc602d188640daa4de751eb0257ba3", kill_on_drop: false }`
[INFO] [stdout] 68579545d93b7548dbd714458dbd238ce7dc602d188640daa4de751eb0257ba3