[INFO] cloning repository https://github.com/fnick851/rust-the-book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fnick851/rust-the-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffnick851%2Frust-the-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffnick851%2Frust-the-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89593b4179cbb581f9f7fe49ad516af2d35f0ab7
[INFO] documenting fnick851/rust-the-book against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffnick851%2Frust-the-book" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fnick851/rust-the-book on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fnick851/rust-the-book
[INFO] finished tweaking git repo https://github.com/fnick851/rust-the-book
[INFO] tweaked toml for git repo https://github.com/fnick851/rust-the-book written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/fnick851/rust-the-book already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--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-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2032239d85913526d9580455a1704f286a4ff6e8c12167c406618b0c3e68c65
[INFO] running `Command { std: "docker" "start" "-a" "f2032239d85913526d9580455a1704f286a4ff6e8c12167c406618b0c3e68c65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2032239d85913526d9580455a1704f286a4ff6e8c12167c406618b0c3e68c65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2032239d85913526d9580455a1704f286a4ff6e8c12167c406618b0c3e68c65", kill_on_drop: false }`
[INFO] [stdout] f2032239d85913526d9580455a1704f286a4ff6e8c12167c406618b0c3e68c65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbbd87102de2ee489a4db16b14db436fb67164a634b925c47fe8347582a0893a
[INFO] running `Command { std: "docker" "start" "-a" "cbbd87102de2ee489a4db16b14db436fb67164a634b925c47fe8347582a0893a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking smallvec v0.4.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking ferris-says v0.1.1
[INFO] [stderr]  Documenting hello_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking hello_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name trait3 src/bin/trait3.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=e849d16681ab5da1 -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name trait2 src/bin/trait2.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=db67017d4545dc6a -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name external_file src/bin/external_file.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=c114c2617723e4b8 -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name panic src/bin/panic.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=865bcd6ecbe6c4cc -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name str src/bin/str.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=e129691f1fd9f9da -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name trait src/bin/trait.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=31a481bdd70b439b -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name vector src/bin/vector.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=14aa10516df0aa91 -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name use src/bin/use.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=d3797c1a5c7c9cfc -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name generics src/bin/generics.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=08f91f744de63674 -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ferris_hello src/bin/ferris_hello.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=4ee48324be1f837c -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name slice src/bin/slice.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=22dc8252c4399a92 -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name struct src/bin/struct.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=440956b905005c6b -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `hello_rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name super_path src/bin/super_path.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=99c1442758b07ccc -L dependency=/opt/rustwide/target/debug/deps --extern ferris_says=/opt/rustwide/target/debug/deps/libferris_says-0d3d35eb5b6f0aaf.rmeta --extern hello_rust=/opt/rustwide/target/debug/deps/libhello_rust-aecb7fb412bff0c0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d61fe4ec1485dfa2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "cbbd87102de2ee489a4db16b14db436fb67164a634b925c47fe8347582a0893a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbbd87102de2ee489a4db16b14db436fb67164a634b925c47fe8347582a0893a", kill_on_drop: false }`
[INFO] [stdout] cbbd87102de2ee489a4db16b14db436fb67164a634b925c47fe8347582a0893a