[INFO] cloning repository https://github.com/iwot/texttopdf-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iwot/texttopdf-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwot%2Ftexttopdf-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwot%2Ftexttopdf-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0eb47555cde8a71d19e3409c4f080acfffe28d16
[INFO] checking iwot/texttopdf-rs against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwot%2Ftexttopdf-rs" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iwot/texttopdf-rs on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iwot/texttopdf-rs
[INFO] finished tweaking git repo https://github.com/iwot/texttopdf-rs
[INFO] tweaked toml for git repo https://github.com/iwot/texttopdf-rs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/iwot/texttopdf-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9aad4b89c1d8ae560b52bd1d47606b5b047c1c61782a9695d70d2a9d73cdba1f
[INFO] running `Command { std: "docker" "start" "-a" "9aad4b89c1d8ae560b52bd1d47606b5b047c1c61782a9695d70d2a9d73cdba1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9aad4b89c1d8ae560b52bd1d47606b5b047c1c61782a9695d70d2a9d73cdba1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9aad4b89c1d8ae560b52bd1d47606b5b047c1c61782a9695d70d2a9d73cdba1f", kill_on_drop: false }`
[INFO] [stdout] 9aad4b89c1d8ae560b52bd1d47606b5b047c1c61782a9695d70d2a9d73cdba1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96bf573272231f7c303a9f4b4f6f4598d05049c85046ca5204ccf6ca2cd8c4cd
[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" "96bf573272231f7c303a9f4b4f6f4598d05049c85046ca5204ccf6ca2cd8c4cd", kill_on_drop: false }`
[INFO] [stderr]     Checking encoding_rs v0.8.20
[INFO] [stderr]     Checking texttopdf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encoding_used`
[INFO] [stdout]   --> src/pdf.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let (cow, encoding_used, had_errors) = SHIFT_JIS.encode(s);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoding_used`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `had_errors`
[INFO] [stdout]   --> src/pdf.rs:36:34
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let (cow, encoding_used, had_errors) = SHIFT_JIS.encode(s);
[INFO] [stdout]    |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_had_errors`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encoding_used`
[INFO] [stdout]   --> src/pdf.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let (cow, encoding_used, had_errors) = SHIFT_JIS.encode(s);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoding_used`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `had_errors`
[INFO] [stdout]   --> src/pdf.rs:36:34
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let (cow, encoding_used, had_errors) = SHIFT_JIS.encode(s);
[INFO] [stdout]    |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_had_errors`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Null`
[INFO] [stdout]  --> src/pdf.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Null,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]  --> src/pdf.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Bool(bool),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Null`
[INFO] [stdout]  --> src/pdf.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Null,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]  --> src/pdf.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Bool(bool),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.34s
[INFO] running `Command { std: "docker" "inspect" "96bf573272231f7c303a9f4b4f6f4598d05049c85046ca5204ccf6ca2cd8c4cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96bf573272231f7c303a9f4b4f6f4598d05049c85046ca5204ccf6ca2cd8c4cd", kill_on_drop: false }`
[INFO] [stdout] 96bf573272231f7c303a9f4b4f6f4598d05049c85046ca5204ccf6ca2cd8c4cd