[INFO] cloning repository https://github.com/jhessin/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jhessin/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhessin%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhessin%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 397b7bd83e6113231faf031cd9044b859b62a79a
[INFO] documenting jhessin/rust-playground against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhessin%2Frust-playground" "/workspace/builds/worker-32/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-32/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jhessin/rust-playground on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jhessin/rust-playground
[INFO] finished tweaking git repo https://github.com/jhessin/rust-playground
[INFO] tweaked toml for git repo https://github.com/jhessin/rust-playground written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] crate git repo https://github.com/jhessin/rust-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22fa9105385434ef9e5bbf3c2d6c27bb24c782edc37c1cc35a58bc10745bda44
[INFO] running `Command { std: "docker" "start" "-a" "22fa9105385434ef9e5bbf3c2d6c27bb24c782edc37c1cc35a58bc10745bda44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22fa9105385434ef9e5bbf3c2d6c27bb24c782edc37c1cc35a58bc10745bda44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22fa9105385434ef9e5bbf3c2d6c27bb24c782edc37c1cc35a58bc10745bda44", kill_on_drop: false }`
[INFO] [stdout] 22fa9105385434ef9e5bbf3c2d6c27bb24c782edc37c1cc35a58bc10745bda44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57cc3bcd2c1fc9214adf79613424408a7c29871c34ddb1bbed03549ab49cf740
[INFO] running `Command { std: "docker" "start" "-a" "57cc3bcd2c1fc9214adf79613424408a7c29871c34ddb1bbed03549ab49cf740", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking hello_macro v0.1.0 (/opt/rustwide/workdir/hello_macro)
[INFO] [stderr]     Checking blog v0.1.0 (/opt/rustwide/workdir/blog)
[INFO] [stderr]  Documenting blog v0.1.0 (/opt/rustwide/workdir/blog)
[INFO] [stderr]  Documenting ch18-3 v0.1.0 (/opt/rustwide/workdir/ch18-3)
[INFO] [stderr]  Documenting smart-ptrs v0.1.0 (/opt/rustwide/workdir/smart-ptrs)
[INFO] [stderr]  Documenting ch15-4 v0.1.0 (/opt/rustwide/workdir/ch15-4)
[INFO] [stderr]  Documenting hello_macro v0.1.0 (/opt/rustwide/workdir/hello_macro)
[INFO] [stderr]  Documenting ch16-1-threads v0.1.0 (/opt/rustwide/workdir/ch16-1-threads)
[INFO] [stderr]  Documenting ch15-5 v0.1.0 (/opt/rustwide/workdir/ch15-5)
[INFO] [stderr]  Documenting ch17-2 v0.1.0 (/opt/rustwide/workdir/ch17-2)
[INFO] [stderr]  Documenting ch16-2-messages v0.1.0 (/opt/rustwide/workdir/ch16-2-messages)
[INFO] [stderr]  Documenting ch15-6 v0.1.0 (/opt/rustwide/workdir/ch15-6)
[INFO] [stderr]  Documenting ch18-1 v0.1.0 (/opt/rustwide/workdir/ch18-1)
[INFO] [stderr]  Documenting ch19-1 v0.1.0 (/opt/rustwide/workdir/ch19-1)
[INFO] [stderr]  Documenting ch19-4 v0.1.0 (/opt/rustwide/workdir/ch19-4)
[INFO] [stderr]  Documenting ch19-3 v0.1.0 (/opt/rustwide/workdir/ch19-3)
[INFO] [stderr]  Documenting ch19-2 v0.1.0 (/opt/rustwide/workdir/ch19-2)
[INFO] [stderr]  Documenting custom-smart-ptr v0.1.0 (/opt/rustwide/workdir/custom-smart-ptr)
[INFO] [stderr]  Documenting ch16-3-mutex v0.1.0 (/opt/rustwide/workdir/ch16-3-mutex)
[INFO] [stderr]  Documenting ch18-2 v0.1.0 (/opt/rustwide/workdir/ch18-2)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> ch18-3/src/main.rs:157:10
[INFO] [stdout]     |
[INFO] [stdout] 157 |         1...5 => println!("one through five"),
[INFO] [stdout]     |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> ch18-3/src/main.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 185 |         'a'...'j' => println!(
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> ch18-3/src/main.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |         'k'...'z' => println!(
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> ch18-3/src/main.rs:1012:36
[INFO] [stdout]      |
[INFO] [stdout] 1012 |                 id: id_variable @ 3...7,
[INFO] [stdout]      |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> ch18-3/src/main.rs:1018:36
[INFO] [stdout]      |
[INFO] [stdout] 1018 |             Message::Hello { id: 10...12 } => println!(
[INFO] [stdout]      |                                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting ch17-3 v0.1.0 (/opt/rustwide/workdir/ch17-3)
[INFO] [stderr] error: could not document `ch15-5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ch15_5 ch15-5/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f69fef1588190f20 -L dependency=/opt/rustwide/target/debug/deps --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 `smart-ptrs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name smart_ptrs smart-ptrs/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=54973fca503e7f7d -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `custom-smart-ptr`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name custom_smart_ptr custom-smart-ptr/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=eb9c091e4b1fe87e -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `ch18-1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ch18_1 ch18-1/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=d96f47586554176d -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `blog`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name blog blog/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=57aa3eb16509d4cb -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `ch19-3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ch19_3 ch19-3/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=227c36f892809afd -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `ch18-3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ch18_3 ch18-3/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9d66e5f9530b5ca7 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `ch19-2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ch19_2 ch19-2/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3362d1fc55140ae4 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "57cc3bcd2c1fc9214adf79613424408a7c29871c34ddb1bbed03549ab49cf740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57cc3bcd2c1fc9214adf79613424408a7c29871c34ddb1bbed03549ab49cf740", kill_on_drop: false }`
[INFO] [stdout] 57cc3bcd2c1fc9214adf79613424408a7c29871c34ddb1bbed03549ab49cf740