[INFO] fetching crate butane 0.8.1...
[INFO] checking butane-0.8.1 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate butane 0.8.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate butane 0.8.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate butane 0.8.1
[INFO] tweaked toml for crates.io crate butane 0.8.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate butane 0.8.1 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate butane 0.8.1 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] [stderr]   Downloaded manyhow v0.11.4
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[INFO] [stdout] 9c3df11beff48aa7e695431820bed224f256c1f97e87afc8ef2c563b4ebee9e5
[INFO] running `Command { std: "docker" "start" "-a" "9c3df11beff48aa7e695431820bed224f256c1f97e87afc8ef2c563b4ebee9e5", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "4dbc66c4a587d23cf4ea2b0af39563b25b3688d9aa841792f62cf3467c4fb176", kill_on_drop: false }`
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[INFO] [stdout] error[E0432]: unresolved import `butane::db::ConnectionAsync`
[INFO] [stdout]  --> tests/unmigrate.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use butane::db::{Connection, ConnectionAsync};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^
[INFO] [stdout]   |                              |
[INFO] [stdout]   |                              no `ConnectionAsync` in `db`
[INFO] [stdout]   |                              help: a similar name exists in the module: `ConnectionSpec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `butane_test_helper`
[INFO] [stdout]  --> tests/unmigrate.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use butane_test_helper::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `butane_test_helper`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `butane_test_helper`, use `cargo add butane_test_helper` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `butane_test_macros`
[INFO] [stdout]  --> tests/unmigrate.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use butane_test_macros::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `butane_test_macros`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `butane_test_macros`, use `cargo add butane_test_macros` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `butane_test` in this scope
[INFO] [stdout]   --> tests/unmigrate.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[butane_test(sync)]
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `butane_test` in this scope
[INFO] [stdout]  --> tests/unmigrate.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[butane_test(async)]
[INFO] [stdout]   |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `backend` found for struct `Connection` in the current scope
[INFO] [stdout]    --> tests/unmigrate.rs:31:57
[INFO] [stdout]     |
[INFO] [stdout]  31 |     let mem_migrations = create_current_migrations(conn.backend());
[INFO] [stdout]     |                                                         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/butane_core-0.8.1/src/db/mod.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn backend(&self) -> Box<dyn Backend>;
[INFO] [stdout]     |        ------- the method is available for `Connection` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `BackendConnection` which provides `backend` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]   4 + use butane::db::BackendConnection;
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `backend_name` with a similar name
[INFO] [stdout]     |
[INFO] [stdout]  31 |     let mem_migrations = create_current_migrations(conn.backend_name());
[INFO] [stdout]     |                                                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `butane` (test "unmigrate") due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "4dbc66c4a587d23cf4ea2b0af39563b25b3688d9aa841792f62cf3467c4fb176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dbc66c4a587d23cf4ea2b0af39563b25b3688d9aa841792f62cf3467c4fb176", kill_on_drop: false }`
[INFO] [stdout] 4dbc66c4a587d23cf4ea2b0af39563b25b3688d9aa841792f62cf3467c4fb176