[INFO] fetching crate merkle_hash 3.7.0...
[INFO] testing merkle_hash-3.7.0 against nightly-2024-10-28+rustflags=-Zrandomize-layout for randomize-layout
[INFO] extracting crate merkle_hash 3.7.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate merkle_hash 3.7.0 on toolchain nightly-2024-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merkle_hash 3.7.0
[INFO] finished tweaking crates.io crate merkle_hash 3.7.0
[INFO] tweaked toml for crates.io crate merkle_hash 3.7.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66bd6d5cb441084ab1a649c5c87c45a2dc8b0a719c138aca8f09febc7fd7e5c8
[INFO] running `Command { std: "docker" "start" "-a" "66bd6d5cb441084ab1a649c5c87c45a2dc8b0a719c138aca8f09febc7fd7e5c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66bd6d5cb441084ab1a649c5c87c45a2dc8b0a719c138aca8f09febc7fd7e5c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66bd6d5cb441084ab1a649c5c87c45a2dc8b0a719c138aca8f09febc7fd7e5c8", kill_on_drop: false }`
[INFO] [stdout] 66bd6d5cb441084ab1a649c5c87c45a2dc8b0a719c138aca8f09febc7fd7e5c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Zrandomize-layout" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47918a6de9dac3f1ebdbcc573f5b23b167776f8ef2345f89a5bc055ef564b497
[INFO] running `Command { std: "docker" "start" "-a" "47918a6de9dac3f1ebdbcc573f5b23b167776f8ef2345f89a5bc055ef564b497", kill_on_drop: false }`
[INFO] [stderr]    Compiling camino v1.1.9
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling constant_time_eq v0.3.1
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling blake3 v1.5.4
[INFO] [stderr]    Compiling merkle_hash v3.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "47918a6de9dac3f1ebdbcc573f5b23b167776f8ef2345f89a5bc055ef564b497", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47918a6de9dac3f1ebdbcc573f5b23b167776f8ef2345f89a5bc055ef564b497", kill_on_drop: false }`
[INFO] [stdout] 47918a6de9dac3f1ebdbcc573f5b23b167776f8ef2345f89a5bc055ef564b497
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Zrandomize-layout" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b82f513cc23d807549143afa16321b753501c26abddd75acbbce782ad1ca558
[INFO] running `Command { std: "docker" "start" "-a" "6b82f513cc23d807549143afa16321b753501c26abddd75acbbce782ad1ca558", kill_on_drop: false }`
[INFO] [stderr]    Compiling merkle_hash v3.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "6b82f513cc23d807549143afa16321b753501c26abddd75acbbce782ad1ca558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b82f513cc23d807549143afa16321b753501c26abddd75acbbce782ad1ca558", kill_on_drop: false }`
[INFO] [stdout] 6b82f513cc23d807549143afa16321b753501c26abddd75acbbce782ad1ca558
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Zrandomize-layout" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 88850b721c8a945e519ec011e9603edfe6a34d56479534e4b49eb530ffcb45be
[INFO] running `Command { std: "docker" "start" "-a" "88850b721c8a945e519ec011e9603edfe6a34d56479534e4b49eb530ffcb45be", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/merkle_hash-0c3a4a448ecd28c4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests merkle_hash
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 53) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 32) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 43) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 53) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/lib.rs:58:61
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_53_0() {
[INFO] [stdout]   |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let tree = MerkleTree::builder("/path/to/directory").build()?;
[INFO] [stdout]   |                                                             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, IndexingError>>` is not implemented for `()`
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_53_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::collections::BTreeSet;
[INFO] [stdout] ...
[INFO] [stdout] 9 | let btree_set: BTreeSet<MerkleItem> = tree.into_iter().collect();
[INFO] [stdout] 10+     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 32) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_32_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 10 |     .build()?;
[INFO] [stdout]    |             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, IndexingError>>` is not implemented for `()`
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 4  ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_32_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5  | use merkle_hash::{Algorithm, MerkleTree};
[INFO] [stdout] ...
[INFO] [stdout] 11 | let master_hash = tree.root.item.hash;
[INFO] [stdout] 12 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 43) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/lib.rs:47:61
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_43_0() {
[INFO] [stdout]   |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let tree = MerkleTree::builder("/path/to/directory").build()?;
[INFO] [stdout]   |                                                             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, IndexingError>>` is not implemented for `()`
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_43_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |                                                                         +++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 32)
[INFO] [stdout]     src/lib.rs - (line 43)
[INFO] [stdout]     src/lib.rs - (line 53)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "88850b721c8a945e519ec011e9603edfe6a34d56479534e4b49eb530ffcb45be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88850b721c8a945e519ec011e9603edfe6a34d56479534e4b49eb530ffcb45be", kill_on_drop: false }`
[INFO] [stdout] 88850b721c8a945e519ec011e9603edfe6a34d56479534e4b49eb530ffcb45be
