[INFO] fetching crate siodb 0.0.4...
[INFO] testing siodb-0.0.4 against 1.60.0 for beta-1.61-1
[INFO] extracting crate siodb 0.0.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate siodb 0.0.4 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate siodb 0.0.4
[INFO] finished tweaking crates.io crate siodb 0.0.4
[INFO] tweaked toml for crates.io crate siodb 0.0.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate siodb 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08f16f1a8495f5571a2a24380f3fc15bc3c0f74f10a46ce35455727e1d23e3d3
[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" "08f16f1a8495f5571a2a24380f3fc15bc3c0f74f10a46ce35455727e1d23e3d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08f16f1a8495f5571a2a24380f3fc15bc3c0f74f10a46ce35455727e1d23e3d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f16f1a8495f5571a2a24380f3fc15bc3c0f74f10a46ce35455727e1d23e3d3", kill_on_drop: false }`
[INFO] [stdout] 08f16f1a8495f5571a2a24380f3fc15bc3c0f74f10a46ce35455727e1d23e3d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbd7ae291ea52bfdaefc39cbc5bb433eb74c82727c9894b458815d9764ab2a4b
[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" "dbd7ae291ea52bfdaefc39cbc5bb433eb74c82727c9894b458815d9764ab2a4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling protobuf v2.12.0
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling bit_utils v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling protoc v2.12.0
[INFO] [stderr]    Compiling varint v0.9.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling zigzag v0.1.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling protobuf-codegen v2.12.0
[INFO] [stderr]    Compiling protoc-rust v2.12.0
[INFO] [stderr]    Compiling siodb v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/siodb/mod.rs:332:9
[INFO] [stdout]     |
[INFO] [stdout] 332 | /         &message
[INFO] [stdout] 333 | |             .write_to_with_cached_sizes(&mut coded_output_stream)
[INFO] [stdout] 334 | |             .expect(&format!("write_message | Codec error"));
[INFO] [stdout]     | |____________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let _ = &message
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/siodb/mod.rs:332:9
[INFO] [stdout]     |
[INFO] [stdout] 332 | /         &message
[INFO] [stdout] 333 | |             .write_to_with_cached_sizes(&mut coded_output_stream)
[INFO] [stdout] 334 | |             .expect(&format!("write_message | Codec error"));
[INFO] [stdout]     | |____________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let _ = &message
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.25s
[INFO] running `Command { std: "docker" "inspect" "dbd7ae291ea52bfdaefc39cbc5bb433eb74c82727c9894b458815d9764ab2a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd7ae291ea52bfdaefc39cbc5bb433eb74c82727c9894b458815d9764ab2a4b", kill_on_drop: false }`
[INFO] [stdout] dbd7ae291ea52bfdaefc39cbc5bb433eb74c82727c9894b458815d9764ab2a4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 898f498e70e8d8b04d58220a91ef43fdb6ac772fd3e0434bb502bf85079a318c
[INFO] running `Command { std: "docker" "start" "-a" "898f498e70e8d8b04d58220a91ef43fdb6ac772fd3e0434bb502bf85079a318c", kill_on_drop: false }`
[INFO] [stderr]    Compiling siodb v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/siodb/mod.rs:332:9
[INFO] [stdout]     |
[INFO] [stdout] 332 | /         &message
[INFO] [stdout] 333 | |             .write_to_with_cached_sizes(&mut coded_output_stream)
[INFO] [stdout] 334 | |             .expect(&format!("write_message | Codec error"));
[INFO] [stdout]     | |____________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let _ = &message
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/siodb/mod.rs:332:9
[INFO] [stdout]     |
[INFO] [stdout] 332 | /         &message
[INFO] [stdout] 333 | |             .write_to_with_cached_sizes(&mut coded_output_stream)
[INFO] [stdout] 334 | |             .expect(&format!("write_message | Codec error"));
[INFO] [stdout]     | |____________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let _ = &message
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/siodb/mod.rs:332:9
[INFO] [stdout]     |
[INFO] [stdout] 332 | /         &message
[INFO] [stdout] 333 | |             .write_to_with_cached_sizes(&mut coded_output_stream)
[INFO] [stdout] 334 | |             .expect(&format!("write_message | Codec error"));
[INFO] [stdout]     | |____________________________________________________________^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let _ = &message
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "898f498e70e8d8b04d58220a91ef43fdb6ac772fd3e0434bb502bf85079a318c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "898f498e70e8d8b04d58220a91ef43fdb6ac772fd3e0434bb502bf85079a318c", kill_on_drop: false }`
[INFO] [stdout] 898f498e70e8d8b04d58220a91ef43fdb6ac772fd3e0434bb502bf85079a318c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ffe32a83ed7d489814772d485e9fd30ea9f27c1851528bb533b47aa25845a986
[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" "ffe32a83ed7d489814772d485e9fd30ea9f27c1851528bb533b47aa25845a986", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/siodb/mod.rs:332:9
[INFO] [stderr]     |
[INFO] [stderr] 332 | /         &message
[INFO] [stderr] 333 | |             .write_to_with_cached_sizes(&mut coded_output_stream)
[INFO] [stderr] 334 | |             .expect(&format!("write_message | Codec error"));
[INFO] [stderr]     | |____________________________________________________________^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 332 |         let _ = &message
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `siodb` (lib) generated 1 warning
[INFO] [stderr] warning: `siodb` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `siodb` (bin "siodb" test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/siodb-156e2d6f1c02f029)
[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]      Running unittests (/opt/rustwide/target/debug/deps/siodb-09095919b2b11869)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests siodb
[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] error[E0659]: `siodb` is ambiguous
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub use siodb::SiodbConn;
[INFO] [stderr]   |         ^^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: ambiguous because of multiple potential import sources
[INFO] [stderr]   = note: `siodb` could refer to a crate passed with `--extern`
[INFO] [stderr]   = help: use `::siodb` to refer to this crate unambiguously
[INFO] [stderr] note: `siodb` could also refer to the module defined here
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | mod siodb;
[INFO] [stderr]   | ^^^^^^^^^^
[INFO] [stderr]   = help: use `crate::siodb` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0659`.
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "ffe32a83ed7d489814772d485e9fd30ea9f27c1851528bb533b47aa25845a986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffe32a83ed7d489814772d485e9fd30ea9f27c1851528bb533b47aa25845a986", kill_on_drop: false }`
[INFO] [stdout] ffe32a83ed7d489814772d485e9fd30ea9f27c1851528bb533b47aa25845a986