[INFO] fetching crate merge-rs 0.4.0...
[INFO] testing merge-rs-0.4.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate merge-rs 0.4.0 into /workspace/builds/worker-0-tc2/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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate merge-rs 0.4.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10776044d5ab92ecdd590651546a0ecf788e14f955bd2f3b772c556276c8a364
[INFO] running `Command { std: "docker" "start" "-a" "10776044d5ab92ecdd590651546a0ecf788e14f955bd2f3b772c556276c8a364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10776044d5ab92ecdd590651546a0ecf788e14f955bd2f3b772c556276c8a364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10776044d5ab92ecdd590651546a0ecf788e14f955bd2f3b772c556276c8a364", kill_on_drop: false }`
[INFO] [stdout] 10776044d5ab92ecdd590651546a0ecf788e14f955bd2f3b772c556276c8a364
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27e3382d329d4a4c1a5d0209af957d2236e5632c942c35b276be2abe6adff437
[INFO] running `Command { std: "docker" "start" "-a" "27e3382d329d4a4c1a5d0209af957d2236e5632c942c35b276be2abe6adff437", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.117
[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 13.93s
[INFO] running `Command { std: "docker" "inspect" "27e3382d329d4a4c1a5d0209af957d2236e5632c942c35b276be2abe6adff437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27e3382d329d4a4c1a5d0209af957d2236e5632c942c35b276be2abe6adff437", kill_on_drop: false }`
[INFO] [stdout] 27e3382d329d4a4c1a5d0209af957d2236e5632c942c35b276be2abe6adff437
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddbad133650a84d94dc9a20bcc93eb97d42858d4d5e77ded7a18a7240217c2b0
[INFO] running `Command { std: "docker" "start" "-a" "ddbad133650a84d94dc9a20bcc93eb97d42858d4d5e77ded7a18a7240217c2b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[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 9.21s
[INFO] running `Command { std: "docker" "inspect" "ddbad133650a84d94dc9a20bcc93eb97d42858d4d5e77ded7a18a7240217c2b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddbad133650a84d94dc9a20bcc93eb97d42858d4d5e77ded7a18a7240217c2b0", kill_on_drop: false }`
[INFO] [stdout] ddbad133650a84d94dc9a20bcc93eb97d42858d4d5e77ded7a18a7240217c2b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 39d4ea4f1ac1940423363e7e75593a0e6bdd2494915c0d403188bc49838b47bf
[INFO] running `Command { std: "docker" "start" "-a" "39d4ea4f1ac1940423363e7e75593a0e6bdd2494915c0d403188bc49838b47bf", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 8 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/merge_rs-93069401228d31fa)
[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_right_none ... ok
[INFO] [stdout] test tests::test_result_merge_both_ok ... ok
[INFO] [stdout] test tests::test_result_merge_left_both_err ... ok
[INFO] [stdout] test tests::test_option_merge_left_none ... ok
[INFO] [stdout] test tests::test_result_merge_right_err ... ok
[INFO] [stdout] test tests::test_result_merge_left_err ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/merge_mut_tests.rs (/opt/rustwide/target/debug/deps/merge_mut_tests-fb74d849fcc33ecc)
[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 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/merge_tests.rs (/opt/rustwide/target/debug/deps/merge_tests-9256c98deb46fd9f)
[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 0.01s
[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" "39d4ea4f1ac1940423363e7e75593a0e6bdd2494915c0d403188bc49838b47bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d4ea4f1ac1940423363e7e75593a0e6bdd2494915c0d403188bc49838b47bf", kill_on_drop: false }`
[INFO] [stdout] 39d4ea4f1ac1940423363e7e75593a0e6bdd2494915c0d403188bc49838b47bf