[INFO] fetching crate merge 0.1.0...
[INFO] testing merge-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate merge 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate merge 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate merge 0.1.0
[INFO] finished tweaking crates.io crate merge 0.1.0
[INFO] tweaked toml for crates.io crate merge 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate merge 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5aad73a3b35318d31b40a91612f1ad0e03c4b4fdb516644a7ea66aea913ea51
[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" "c5aad73a3b35318d31b40a91612f1ad0e03c4b4fdb516644a7ea66aea913ea51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5aad73a3b35318d31b40a91612f1ad0e03c4b4fdb516644a7ea66aea913ea51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5aad73a3b35318d31b40a91612f1ad0e03c4b4fdb516644a7ea66aea913ea51", kill_on_drop: false }`
[INFO] [stdout] c5aad73a3b35318d31b40a91612f1ad0e03c4b4fdb516644a7ea66aea913ea51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7399f998c8fbf9ebce88bcb1391b863ad90520ca31b6687bed3edfdd76a73a05
[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" "7399f998c8fbf9ebce88bcb1391b863ad90520ca31b6687bed3edfdd76a73a05", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling merge_derive v0.1.0
[INFO] [stderr]    Compiling merge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.50s
[INFO] running `Command { std: "docker" "inspect" "7399f998c8fbf9ebce88bcb1391b863ad90520ca31b6687bed3edfdd76a73a05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7399f998c8fbf9ebce88bcb1391b863ad90520ca31b6687bed3edfdd76a73a05", kill_on_drop: false }`
[INFO] [stdout] 7399f998c8fbf9ebce88bcb1391b863ad90520ca31b6687bed3edfdd76a73a05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8380f99e19dd2fee731e2979fa792ee93b43fb10061b5c5c261f6ecbdabc462
[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" "f8380f99e19dd2fee731e2979fa792ee93b43fb10061b5c5c261f6ecbdabc462", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling envy v0.4.1
[INFO] [stderr]    Compiling structopt v0.3.17
[INFO] [stderr]    Compiling trybuild v1.0.30
[INFO] [stderr]    Compiling merge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 32.67s
[INFO] running `Command { std: "docker" "inspect" "f8380f99e19dd2fee731e2979fa792ee93b43fb10061b5c5c261f6ecbdabc462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8380f99e19dd2fee731e2979fa792ee93b43fb10061b5c5c261f6ecbdabc462", kill_on_drop: false }`
[INFO] [stdout] f8380f99e19dd2fee731e2979fa792ee93b43fb10061b5c5c261f6ecbdabc462
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", 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] 84665ece77da65dd27e41cfb1f0fe438392aed8b908c945d68bcda329e0b131d
[INFO] running `Command { std: "docker" "start" "-a" "84665ece77da65dd27e41cfb1f0fe438392aed8b908c945d68bcda329e0b131d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/merge-7ea74f1c251573a3)
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_compile_fail ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/compile.rs (/opt/rustwide/target/debug/deps/compile-fd8286a66fc68da3)
[INFO] [stderr]      Running tests/derive.rs (/opt/rustwide/target/debug/deps/derive-52866433857e86dd)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_skip_valid ... ok
[INFO] [stdout] test test_strategy_usize_add ... ok
[INFO] [stderr]      Running tests/impls.rs (/opt/rustwide/target/debug/deps/impls-a344715776a424dd)
[INFO] [stdout] test test_strategy_vec_append ... ok
[INFO] [stdout] test test_one_option_field ... ok
[INFO] [stdout] test test_unnamed_fields_skip ... ok
[INFO] [stdout] test test_two_option_fields ... ok
[INFO] [stdout] test test_skip_invalid ... ok
[INFO] [stdout] test test_unnamed_fields ... 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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_option ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/strategies.rs (/opt/rustwide/target/debug/deps/strategies-5e2c44cc0e56cdc8)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test_bool_overwrite_false ... ok
[INFO] [stdout] test test_bool_overwrite_true ... ok
[INFO] [stdout] test test_num_overwrite_zero ... ok
[INFO] [stdout] test test_ord_max ... ok
[INFO] [stderr]    Doc-tests merge
[INFO] [stdout] test test_vec_append ... ok
[INFO] [stdout] test test_vec_overwrite_empty ... ok
[INFO] [stdout] test test_ord_min ... ok
[INFO] [stdout] test test_num_saturating_add ... ok
[INFO] [stdout] test test_vec_prepend ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 37) ... ok
[INFO] [stdout] test src/lib.rs - Merge (line 104) ... ok
[INFO] [stdout] test src/lib.rs - Merge (line 94) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "84665ece77da65dd27e41cfb1f0fe438392aed8b908c945d68bcda329e0b131d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84665ece77da65dd27e41cfb1f0fe438392aed8b908c945d68bcda329e0b131d", kill_on_drop: false }`
[INFO] [stdout] 84665ece77da65dd27e41cfb1f0fe438392aed8b908c945d68bcda329e0b131d