[INFO] updating cached repository https://github.com/iwot/texttopdf-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0eb47555cde8a71d19e3409c4f080acfffe28d16
[INFO] checking iwot/texttopdf-rs against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwot%2Ftexttopdf-rs" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iwot/texttopdf-rs on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-11/source/Cargo.toml
[INFO] crate git repo https://github.com/iwot/texttopdf-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 279450d2e06c38f4c78ed3fa6671ce4bf79c64e577de3e4302e2bca581fc41bd
[INFO] running `"docker" "start" "-a" "279450d2e06c38f4c78ed3fa6671ce4bf79c64e577de3e4302e2bca581fc41bd"`
[INFO] [stderr]    Compiling encoding_rs v0.8.20
[INFO] [stderr]     Checking texttopdf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:12:29
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:12:29
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `encoding_used`
[INFO] [stderr]   --> src/pdf.rs:36:19
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let (cow, encoding_used, had_errors) = SHIFT_JIS.encode(s);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoding_used`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `had_errors`
[INFO] [stderr]   --> src/pdf.rs:36:34
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let (cow, encoding_used, had_errors) = SHIFT_JIS.encode(s);
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_had_errors`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `encoding_used`
[INFO] [stderr]   --> src/pdf.rs:36:19
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let (cow, encoding_used, had_errors) = SHIFT_JIS.encode(s);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoding_used`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `had_errors`
[INFO] [stderr]   --> src/pdf.rs:36:34
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let (cow, encoding_used, had_errors) = SHIFT_JIS.encode(s);
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_had_errors`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Null`
[INFO] [stderr]  --> src/pdf.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Null,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]  --> src/pdf.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Bool(bool),
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Null`
[INFO] [stderr]  --> src/pdf.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Null,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]  --> src/pdf.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Bool(bool),
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `"docker" "inspect" "279450d2e06c38f4c78ed3fa6671ce4bf79c64e577de3e4302e2bca581fc41bd"`
[INFO] running `"docker" "rm" "-f" "279450d2e06c38f4c78ed3fa6671ce4bf79c64e577de3e4302e2bca581fc41bd"`
[INFO] [stdout] 279450d2e06c38f4c78ed3fa6671ce4bf79c64e577de3e4302e2bca581fc41bd