[INFO] fetching crate cardinal_backend 0.1.1...
[INFO] testing cardinal_backend-0.1.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate cardinal_backend 0.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate cardinal_backend 0.1.1
[INFO] finished tweaking crates.io crate cardinal_backend 0.1.1
[INFO] tweaked toml for crates.io crate cardinal_backend 0.1.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cardinal_backend 0.1.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cardinal_backend 0.1.1 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02fbd7f020d9e8b33c9ffea471dc444a7c415960fcf987d9c0b0cfc290c8e611
[INFO] running `Command { std: "docker" "start" "-a" "02fbd7f020d9e8b33c9ffea471dc444a7c415960fcf987d9c0b0cfc290c8e611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02fbd7f020d9e8b33c9ffea471dc444a7c415960fcf987d9c0b0cfc290c8e611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02fbd7f020d9e8b33c9ffea471dc444a7c415960fcf987d9c0b0cfc290c8e611", kill_on_drop: false }`
[INFO] [stdout] 02fbd7f020d9e8b33c9ffea471dc444a7c415960fcf987d9c0b0cfc290c8e611
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0116dda90adf28cc4b50fe25f9c4154651c0ee7ad0f00864d7764811cd64ec2
[INFO] running `Command { std: "docker" "start" "-a" "a0116dda90adf28cc4b50fe25f9c4154651c0ee7ad0f00864d7764811cd64ec2", kill_on_drop: false }`
[INFO] [stderr]    Compiling cardinal_backend v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "a0116dda90adf28cc4b50fe25f9c4154651c0ee7ad0f00864d7764811cd64ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0116dda90adf28cc4b50fe25f9c4154651c0ee7ad0f00864d7764811cd64ec2", kill_on_drop: false }`
[INFO] [stdout] a0116dda90adf28cc4b50fe25f9c4154651c0ee7ad0f00864d7764811cd64ec2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29c1324ace59e0c8458aac797b05072751375661f575baab86a69c4deedec8c3
[INFO] running `Command { std: "docker" "start" "-a" "29c1324ace59e0c8458aac797b05072751375661f575baab86a69c4deedec8c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling cardinal_backend v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ValueType`
[INFO] [stdout]  --> examples/function.rs:1:52
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cardinal_backend::{ Function, FunctionBuilder, ValueType, Value };
[INFO] [stdout]   |                                                    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "29c1324ace59e0c8458aac797b05072751375661f575baab86a69c4deedec8c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29c1324ace59e0c8458aac797b05072751375661f575baab86a69c4deedec8c3", kill_on_drop: false }`
[INFO] [stdout] 29c1324ace59e0c8458aac797b05072751375661f575baab86a69c4deedec8c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8b6c4e82fed4562ae0a05f788e34cdc7922d43bba0eec89ca364b1e04cf23d6e
[INFO] running `Command { std: "docker" "start" "-a" "8b6c4e82fed4562ae0a05f788e34cdc7922d43bba0eec89ca364b1e04cf23d6e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `ValueType`
[INFO] [stderr]  --> examples/function.rs:1:52
[INFO] [stderr]   |
[INFO] [stderr] 1 | use cardinal_backend::{ Function, FunctionBuilder, ValueType, Value };
[INFO] [stderr]   |                                                    ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cardinal_backend` (example "function") generated 1 warning (run `cargo fix --example "function" -p cardinal_backend` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cardinal_backend-77d2d33fb7d4d4a9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cardinal_backend
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] test src/opcode.rs - opcode::Opcode::IntegerAdd (line 19) ... FAILED
[INFO] [stdout] test src/opcode.rs - opcode::Opcode::IntegerNegate (line 30) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/opcode.rs - opcode::Opcode::IntegerAdd (line 19) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]   --> src/opcode.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | x = y + z
[INFO] [stdout]    | ^
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to introduce a new binding
[INFO] [stdout]    |
[INFO] [stdout] 20 | let x = y + z
[INFO] [stdout]    | +++
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/opcode.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | x = y + z
[INFO] [stdout]    |     ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `z` in this scope
[INFO] [stdout]   --> src/opcode.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | x = y + z
[INFO] [stdout]    |         ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/opcode.rs - opcode::Opcode::IntegerNegate (line 30) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]   --> src/opcode.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | x = -y
[INFO] [stdout]    | ^
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to introduce a new binding
[INFO] [stdout]    |
[INFO] [stdout] 31 | let x = -y
[INFO] [stdout]    | +++
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/opcode.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | x = -y
[INFO] [stdout]    |      ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/opcode.rs - opcode::Opcode::IntegerAdd (line 19)
[INFO] [stdout]     src/opcode.rs - opcode::Opcode::IntegerNegate (line 30)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.29s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8b6c4e82fed4562ae0a05f788e34cdc7922d43bba0eec89ca364b1e04cf23d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b6c4e82fed4562ae0a05f788e34cdc7922d43bba0eec89ca364b1e04cf23d6e", kill_on_drop: false }`
[INFO] [stdout] 8b6c4e82fed4562ae0a05f788e34cdc7922d43bba0eec89ca364b1e04cf23d6e