[INFO] fetching crate merge-rs 0.4.0...
[INFO] testing merge-rs-0.4.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate merge-rs 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate merge-rs 0.4.0
[INFO] finished tweaking crates.io crate merge-rs 0.4.0
[INFO] tweaked toml for crates.io crate merge-rs 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate merge-rs 0.4.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded concat-idents v1.1.5
[INFO] [stderr]   Downloaded merge-rs-derive v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94e5fdca960f34d9b119c3d6bb3e8066c7f3b9dfec41d58126d1b63dc8ccd2fa
[INFO] running `Command { std: "docker" "start" "-a" "94e5fdca960f34d9b119c3d6bb3e8066c7f3b9dfec41d58126d1b63dc8ccd2fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94e5fdca960f34d9b119c3d6bb3e8066c7f3b9dfec41d58126d1b63dc8ccd2fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e5fdca960f34d9b119c3d6bb3e8066c7f3b9dfec41d58126d1b63dc8ccd2fa", kill_on_drop: false }`
[INFO] [stdout] 94e5fdca960f34d9b119c3d6bb3e8066c7f3b9dfec41d58126d1b63dc8ccd2fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cb71acb296d9838d84d3b42562983815757e88f72ed79db39df9ef065aad5f7
[INFO] running `Command { std: "docker" "start" "-a" "0cb71acb296d9838d84d3b42562983815757e88f72ed79db39df9ef065aad5f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling merge-rs-derive v0.4.0
[INFO] [stderr]    Compiling merge-rs v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.72s
[INFO] running `Command { std: "docker" "inspect" "0cb71acb296d9838d84d3b42562983815757e88f72ed79db39df9ef065aad5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cb71acb296d9838d84d3b42562983815757e88f72ed79db39df9ef065aad5f7", kill_on_drop: false }`
[INFO] [stdout] 0cb71acb296d9838d84d3b42562983815757e88f72ed79db39df9ef065aad5f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acf2e94bf0935e2cb0bfbe68a986fe8faff7e38a0dd4725f8294984a0225d36c
[INFO] running `Command { std: "docker" "start" "-a" "acf2e94bf0935e2cb0bfbe68a986fe8faff7e38a0dd4725f8294984a0225d36c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling concat-idents v1.1.5
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling merge-rs-derive v0.4.0
[INFO] [stderr]    Compiling merge-rs v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.80s
[INFO] running `Command { std: "docker" "inspect" "acf2e94bf0935e2cb0bfbe68a986fe8faff7e38a0dd4725f8294984a0225d36c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acf2e94bf0935e2cb0bfbe68a986fe8faff7e38a0dd4725f8294984a0225d36c", kill_on_drop: false }`
[INFO] [stdout] acf2e94bf0935e2cb0bfbe68a986fe8faff7e38a0dd4725f8294984a0225d36c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1df4728ec4f1c037fe503ebb7e266c410767acbcb90dd78fea6a868e70ca36bf
[INFO] running `Command { std: "docker" "start" "-a" "1df4728ec4f1c037fe503ebb7e266c410767acbcb90dd78fea6a868e70ca36bf", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/merge_rs-e95259083c68bb29)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stderr]      Running tests/merge_mut_tests.rs (/opt/rustwide/target/debug/deps/merge_mut_tests-85a042863928fc3d)
[INFO] [stdout] test tests::test_option_merge_both_none ... ok
[INFO] [stdout] test tests::test_option_merge_both_some ... ok
[INFO] [stdout] test tests::test_option_merge_left_none ... ok
[INFO] [stdout] test tests::test_option_merge_right_none ... ok
[INFO] [stdout] test tests::test_result_merge_both_ok ... ok
[INFO] [stdout] test tests::test_result_merge_left_err ... ok
[INFO] [stdout] test tests::test_result_merge_right_err ... ok
[INFO] [stdout] test tests::test_result_merge_left_both_err ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_tuple_struct ... ok
[INFO] [stdout] test test_unit_structs ... ok
[INFO] [stdout] test test_named_structs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/merge_tests.rs (/opt/rustwide/target/debug/deps/merge_tests-f64c166aca952540)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_named_structs ... ok
[INFO] [stdout] test test_tuple_struct ... ok
[INFO] [stdout] test test_unit_structs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests merge_rs
[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] running `Command { std: "docker" "inspect" "1df4728ec4f1c037fe503ebb7e266c410767acbcb90dd78fea6a868e70ca36bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1df4728ec4f1c037fe503ebb7e266c410767acbcb90dd78fea6a868e70ca36bf", kill_on_drop: false }`
[INFO] [stdout] 1df4728ec4f1c037fe503ebb7e266c410767acbcb90dd78fea6a868e70ca36bf