[INFO] fetching crate unsegen_jsonviewer 0.2.0...
[INFO] testing unsegen_jsonviewer-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate unsegen_jsonviewer 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate unsegen_jsonviewer 0.2.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unsegen_jsonviewer 0.2.0
[INFO] finished tweaking crates.io crate unsegen_jsonviewer 0.2.0
[INFO] tweaked toml for crates.io crate unsegen_jsonviewer 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a61523063601ed2f78203497ab2bff5d8e11786e3704dc87d43eac4ed9d44899
[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" "a61523063601ed2f78203497ab2bff5d8e11786e3704dc87d43eac4ed9d44899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a61523063601ed2f78203497ab2bff5d8e11786e3704dc87d43eac4ed9d44899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a61523063601ed2f78203497ab2bff5d8e11786e3704dc87d43eac4ed9d44899", kill_on_drop: false }`
[INFO] [stdout] a61523063601ed2f78203497ab2bff5d8e11786e3704dc87d43eac4ed9d44899
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0993db0fdf48a801d2353bb685fcc34027a30309de1df3abed7bd0bf129c9d55
[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" "0993db0fdf48a801d2353bb685fcc34027a30309de1df3abed7bd0bf129c9d55", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling ndarray v0.8.4
[INFO] [stderr]    Compiling smallvec v0.3.4
[INFO] [stderr]    Compiling json v0.11.15
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling raw_tty v0.1.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling unsegen v0.2.5
[INFO] [stderr]    Compiling unsegen_jsonviewer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.18s
[INFO] running `Command { std: "docker" "inspect" "0993db0fdf48a801d2353bb685fcc34027a30309de1df3abed7bd0bf129c9d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0993db0fdf48a801d2353bb685fcc34027a30309de1df3abed7bd0bf129c9d55", kill_on_drop: false }`
[INFO] [stdout] 0993db0fdf48a801d2353bb685fcc34027a30309de1df3abed7bd0bf129c9d55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e81f24376811b08d840fb2e9d569a544a8d47e9442f4ea8f30d29a0e395d37c9
[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" "e81f24376811b08d840fb2e9d569a544a8d47e9442f4ea8f30d29a0e395d37c9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unsegen_jsonviewer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `Command { std: "docker" "inspect" "e81f24376811b08d840fb2e9d569a544a8d47e9442f4ea8f30d29a0e395d37c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e81f24376811b08d840fb2e9d569a544a8d47e9442f4ea8f30d29a0e395d37c9", kill_on_drop: false }`
[INFO] [stdout] e81f24376811b08d840fb2e9d569a544a8d47e9442f4ea8f30d29a0e395d37c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2a84e70cab0958f0b2d1a29300eec905d0a1efb7359b5af529ad1658c2459931
[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" "2a84e70cab0958f0b2d1a29300eec905d0a1efb7359b5af529ad1658c2459931", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/unsegen_jsonviewer-8b0f8950018cbaee
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test path::test::test_find_and_act_on_element ... ok
[INFO] [stdout] test path::test::test_first_path_in ... ok
[INFO] [stdout] test path::test::test_last_path_in ... ok
[INFO] [stdout] test path::test::test_find_previous_path ... ok
[INFO] [stdout] test path::test::test_fix_path_for_value ... ok
[INFO] [stdout] test path::test::test_find_next_path ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unsegen_jsonviewer
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 4) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 4) stdout ----
[INFO] [stdout] error[E0599]: no method named `create_root_window` found for enum `std::result::Result<Terminal<'_, StdoutLock<'_>>, std::io::Error>` in the current scope
[INFO] [stdout]   --> src/lib.rs:52:28
[INFO] [stdout]    |
[INFO] [stdout] 50 |             let win = term.create_root_window();
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^ method not found in `std::result::Result<Terminal<'_, StdoutLock<'_>>, std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `present` found for enum `std::result::Result<Terminal<'_, StdoutLock<'_>>, std::io::Error>` in the current scope
[INFO] [stdout]   --> src/lib.rs:55:14
[INFO] [stdout]    |
[INFO] [stdout] 53 |         term.present();
[INFO] [stdout]    |              ^^^^^^^ method not found in `std::result::Result<Terminal<'_, StdoutLock<'_>>, std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 4)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "2a84e70cab0958f0b2d1a29300eec905d0a1efb7359b5af529ad1658c2459931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a84e70cab0958f0b2d1a29300eec905d0a1efb7359b5af529ad1658c2459931", kill_on_drop: false }`
[INFO] [stdout] 2a84e70cab0958f0b2d1a29300eec905d0a1efb7359b5af529ad1658c2459931