[INFO] fetching crate diff 0.1.12...
[INFO] testing diff-0.1.12 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate diff 0.1.12 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate diff 0.1.12 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate diff 0.1.12
[INFO] finished tweaking crates.io crate diff 0.1.12
[INFO] tweaked toml for crates.io crate diff 0.1.12 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate diff 0.1.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b87955069bc4dbceb38d982ee230bf6f8418cf1626d1e1b30b4ea79de5f85de0
[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" "b87955069bc4dbceb38d982ee230bf6f8418cf1626d1e1b30b4ea79de5f85de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b87955069bc4dbceb38d982ee230bf6f8418cf1626d1e1b30b4ea79de5f85de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b87955069bc4dbceb38d982ee230bf6f8418cf1626d1e1b30b4ea79de5f85de0", kill_on_drop: false }`
[INFO] [stdout] b87955069bc4dbceb38d982ee230bf6f8418cf1626d1e1b30b4ea79de5f85de0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b3d5e0f57832012cc6736b6a791ee1bc660a5608e03aa0494bb89c4aa49d397
[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" "3b3d5e0f57832012cc6736b6a791ee1bc660a5608e03aa0494bb89c4aa49d397", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "3b3d5e0f57832012cc6736b6a791ee1bc660a5608e03aa0494bb89c4aa49d397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b3d5e0f57832012cc6736b6a791ee1bc660a5608e03aa0494bb89c4aa49d397", kill_on_drop: false }`
[INFO] [stdout] 3b3d5e0f57832012cc6736b6a791ee1bc660a5608e03aa0494bb89c4aa49d397
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] f47b0ef8e910494fa6bd7c75af1540a5dd43465365d83d60712f1fb930b3b82d
[INFO] running `Command { std: "docker" "start" "-a" "f47b0ef8e910494fa6bd7c75af1540a5dd43465365d83d60712f1fb930b3b82d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling log v0.4.10
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling quickcheck v0.9.0
[INFO] [stderr]    Compiling speculate v0.1.2
[INFO] [stderr]    Compiling diff v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 28.84s
[INFO] running `Command { std: "docker" "inspect" "f47b0ef8e910494fa6bd7c75af1540a5dd43465365d83d60712f1fb930b3b82d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f47b0ef8e910494fa6bd7c75af1540a5dd43465365d83d60712f1fb930b3b82d", kill_on_drop: false }`
[INFO] [stdout] f47b0ef8e910494fa6bd7c75af1540a5dd43465365d83d60712f1fb930b3b82d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5eef46c0e3b0a96d6f2d28e1552bb877261512054d2dca48998675ca6a0e8a43
[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" "5eef46c0e3b0a96d6f2d28e1552bb877261512054d2dca48998675ca6a0e8a43", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/diff-b50c15464d65d2a6
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tests-af3b37c3a0867a70
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test speculate_0::chars::test_both_equal_and_non_empty ... ok
[INFO] [stdout] test speculate_0::chars::test_one_empty ... ok
[INFO] [stdout] test speculate_0::lines::test_both_equal_and_non_empty ... ok
[INFO] [stdout] test speculate_0::issues::test__4 ... ok
[INFO] [stdout] test speculate_0::lines::test_misc_1 ... ok
[INFO] [stdout] test speculate_0::lines::test_one_empty ... ok
[INFO] [stdout] test speculate_0::slice::test_empty_slices ... ok
[INFO] [stdout] test speculate_0::slice::test_equal_non_empty_slices ... ok
[INFO] [stdout] test speculate_0::slice::test_left_empty_right_non_empty ... ok
[INFO] [stdout] test speculate_0::slice::test_left_non_empty_right_empty ... ok
[INFO] [stdout] test speculate_0::slice::test_misc_2 ... ok
[INFO] [stdout] test speculate_0::slice::test_misc_3 ... ok
[INFO] [stdout] test speculate_0::chars::test_both_empty ... ok
[INFO] [stdout] test speculate_0::issues::test__6 ... ok
[INFO] [stdout] test speculate_0::chars::test_misc_1 ... ok
[INFO] [stdout] test speculate_0::lines::test__10 ... ok
[INFO] [stdout] test speculate_0::lines::test_both_empty ... ok
[INFO] [stdout] test speculate_0::slice::test_misc_1 ... ok
[INFO] [stderr]    Doc-tests diff
[INFO] [stdout] test speculate_0::slice::test_quickcheck ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5eef46c0e3b0a96d6f2d28e1552bb877261512054d2dca48998675ca6a0e8a43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eef46c0e3b0a96d6f2d28e1552bb877261512054d2dca48998675ca6a0e8a43", kill_on_drop: false }`
[INFO] [stdout] 5eef46c0e3b0a96d6f2d28e1552bb877261512054d2dca48998675ca6a0e8a43