[INFO] fetching crate persistent_rope 0.1.3...
[INFO] testing persistent_rope-0.1.3 against master#61469b682c2b0bf9cebc4622f1859e2bb3b7ebca for pr-91743
[INFO] extracting crate persistent_rope 0.1.3 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate persistent_rope 0.1.3 on toolchain 61469b682c2b0bf9cebc4622f1859e2bb3b7ebca
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate persistent_rope 0.1.3
[INFO] finished tweaking crates.io crate persistent_rope 0.1.3
[INFO] tweaked toml for crates.io crate persistent_rope 0.1.3 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ropey v1.4.1
[INFO] [stderr]   Downloaded str_indices v0.3.2
[INFO] [stderr]   Downloaded xi-rope v0.3.0
[INFO] [stderr]   Downloaded macro-attr v0.2.0
[INFO] [stderr]   Downloaded bytecount v0.5.1
[INFO] [stderr]   Downloaded an-rope v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c2e2fbc393ff84d5e0e808ed0d23d06e1b1967e9c1691988996d5de9fe22bbf
[INFO] running `Command { std: "docker" "start" "-a" "9c2e2fbc393ff84d5e0e808ed0d23d06e1b1967e9c1691988996d5de9fe22bbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c2e2fbc393ff84d5e0e808ed0d23d06e1b1967e9c1691988996d5de9fe22bbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c2e2fbc393ff84d5e0e808ed0d23d06e1b1967e9c1691988996d5de9fe22bbf", kill_on_drop: false }`
[INFO] [stdout] 9c2e2fbc393ff84d5e0e808ed0d23d06e1b1967e9c1691988996d5de9fe22bbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 819de261e4dba58afece7735eb304271a8b88471975c86fc69386b189c84750c
[INFO] running `Command { std: "docker" "start" "-a" "819de261e4dba58afece7735eb304271a8b88471975c86fc69386b189c84750c", kill_on_drop: false }`
[INFO] [stderr]    Compiling persistent_rope v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "819de261e4dba58afece7735eb304271a8b88471975c86fc69386b189c84750c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "819de261e4dba58afece7735eb304271a8b88471975c86fc69386b189c84750c", kill_on_drop: false }`
[INFO] [stdout] 819de261e4dba58afece7735eb304271a8b88471975c86fc69386b189c84750c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c51224ed2735562d78f3a74d44b1b1df82de88c2586ae94c22e797ecd1acee3f
[INFO] running `Command { std: "docker" "start" "-a" "c51224ed2735562d78f3a74d44b1b1df82de88c2586ae94c22e797ecd1acee3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling bytecount v0.5.1
[INFO] [stderr]    Compiling str_indices v0.3.2
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling macro-attr v0.2.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling ropey v1.4.1
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling an-rope v0.3.1
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling xi-rope v0.3.0
[INFO] [stderr]    Compiling persistent_rope v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.29s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/persistent_rope-cecc55e2eb800512)
[INFO] running `Command { std: "docker" "inspect" "c51224ed2735562d78f3a74d44b1b1df82de88c2586ae94c22e797ecd1acee3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c51224ed2735562d78f3a74d44b1b1df82de88c2586ae94c22e797ecd1acee3f", kill_on_drop: false }`
[INFO] [stdout] c51224ed2735562d78f3a74d44b1b1df82de88c2586ae94c22e797ecd1acee3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1f01ff1af77d86989b06936796d3fa91cb0806375f09f5b1ae235b739aae9b90
[INFO] running `Command { std: "docker" "start" "-a" "1f01ff1af77d86989b06936796d3fa91cb0806375f09f5b1ae235b739aae9b90", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/persistent_rope-cecc55e2eb800512)
[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] [stderr]    Doc-tests persistent_rope
[INFO] [stdout] 
[INFO] [stdout] running 34 tests
[INFO] [stdout] test src/utils.rs - utils::char_to_byte_index (line 15) ... ok
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name persistent_rope --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern an_rope=/opt/rustwide/target/debug/deps/liban_rope-cccfe0f818f81323.rlib --extern persistent_rope=/opt/rustwide/target/debug/deps/libpersistent_rope-83f8f35298a15243.rlib --extern ropey=/opt/rustwide/target/debug/deps/libropey-2acaad757ae3fb8a.rlib --extern xi_rope=/opt/rustwide/target/debug/deps/libxi_rope-fb32cbac4f022f1f.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "1f01ff1af77d86989b06936796d3fa91cb0806375f09f5b1ae235b739aae9b90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f01ff1af77d86989b06936796d3fa91cb0806375f09f5b1ae235b739aae9b90", kill_on_drop: false }`
[INFO] [stdout] 1f01ff1af77d86989b06936796d3fa91cb0806375f09f5b1ae235b739aae9b90