[INFO] cloning repository https://github.com/docula-io/docula
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/docula-io/docula" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdocula-io%2Fdocula", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdocula-io%2Fdocula'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4b2cfad0fec1dbdeaadbd37ac34424c880fd2ed
[INFO] checking docula-io/docula/c4b2cfad0fec1dbdeaadbd37ac34424c880fd2ed against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdocula-io%2Fdocula" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/docula-io/docula on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/docula-io/docula
[INFO] finished tweaking git repo https://github.com/docula-io/docula
[INFO] tweaked toml for git repo https://github.com/docula-io/docula written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/docula-io/docula already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tabled_derive v0.4.0
[INFO] [stderr]   Downloaded ordinal v0.3.2
[INFO] [stderr]   Downloaded ansitok v0.1.0
[INFO] [stderr]   Downloaded iana-time-zone v0.1.44
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.2
[INFO] [stderr]   Downloaded serde_yaml v0.9.6
[INFO] [stderr]   Downloaded papergrid v0.5.1
[INFO] [stderr]   Downloaded tabled v0.8.0
[INFO] [stderr]   Downloaded ansi-str v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d05ac5af0a95dc2de5b7c1610ebb54ff2b5455ffccfdc2767b3ed69caad9209
[INFO] running `Command { std: "docker" "start" "-a" "0d05ac5af0a95dc2de5b7c1610ebb54ff2b5455ffccfdc2767b3ed69caad9209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d05ac5af0a95dc2de5b7c1610ebb54ff2b5455ffccfdc2767b3ed69caad9209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d05ac5af0a95dc2de5b7c1610ebb54ff2b5455ffccfdc2767b3ed69caad9209", kill_on_drop: false }`
[INFO] [stdout] 0d05ac5af0a95dc2de5b7c1610ebb54ff2b5455ffccfdc2767b3ed69caad9209
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b456b67d0e88d66d935ade0ed0d45237bf901870846fa2c302c41013dc13d374
[INFO] running `Command { std: "docker" "start" "-a" "b456b67d0e88d66d935ade0ed0d45237bf901870846fa2c302c41013dc13d374", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling libc v0.2.127
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking unicode-normalization v0.1.21
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking bytecount v0.6.3
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking os_str_bytes v6.2.0
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[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking itoa v1.0.3
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[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking iana-time-zone v0.1.44
[INFO] [stderr]     Checking indexmap v1.9.1
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.2
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking ordinal v0.3.2
[INFO] [stderr]     Checking predicates-tree v1.0.5
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[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking vte v0.10.1
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking ansitok v0.1.0
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking ansi-str v0.3.0
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.1
[INFO] [stderr]     Checking papergrid v0.5.1
[INFO] [stderr]     Checking globset v0.4.9
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]     Checking assert_fs v1.0.7
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tabled_derive v0.4.0
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]     Checking tabled v0.8.0
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]     Checking serde_yaml v0.9.6
[INFO] [stderr]     Checking docula-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/markdown/parser/lexer.rs:107:19
[INFO] [stdout]     |
[INFO] [stdout] 107 |         .map(|x| x.clone().to_string())
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/markdown/parser/lexer.rs:145:19
[INFO] [stdout]     |
[INFO] [stdout] 145 |         .map(|x| x.clone().to_string())
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/markdown/parser/lexer.rs:107:19
[INFO] [stdout]     |
[INFO] [stdout] 107 |         .map(|x| x.clone().to_string())
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/markdown/parser/lexer.rs:145:19
[INFO] [stdout]     |
[INFO] [stdout] 145 |         .map(|x| x.clone().to_string())
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.85s
[INFO] running `Command { std: "docker" "inspect" "b456b67d0e88d66d935ade0ed0d45237bf901870846fa2c302c41013dc13d374", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b456b67d0e88d66d935ade0ed0d45237bf901870846fa2c302c41013dc13d374", kill_on_drop: false }`
[INFO] [stdout] b456b67d0e88d66d935ade0ed0d45237bf901870846fa2c302c41013dc13d374