[INFO] cloning repository https://github.com/gennarogravinese/pdfmerge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gennarogravinese/pdfmerge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgennarogravinese%2Fpdfmerge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgennarogravinese%2Fpdfmerge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff73fc59dbea8d79ebbecf36568823d230127ef0
[INFO] checking gennarogravinese/pdfmerge against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgennarogravinese%2Fpdfmerge" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gennarogravinese/pdfmerge
[INFO] finished tweaking git repo https://github.com/gennarogravinese/pdfmerge
[INFO] tweaked toml for git repo https://github.com/gennarogravinese/pdfmerge written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gennarogravinese/pdfmerge on toolchain b56aaec52bc0fa35591a872fb4aac81f606e265c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gennarogravinese/pdfmerge 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" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lopdf v0.34.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8576f9b5418bc962f671004f6d6b65c67f71a6b7635a7bfc53edc250eaa6069b
[INFO] running `Command { std: "docker" "start" "-a" "8576f9b5418bc962f671004f6d6b65c67f71a6b7635a7bfc53edc250eaa6069b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8576f9b5418bc962f671004f6d6b65c67f71a6b7635a7bfc53edc250eaa6069b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8576f9b5418bc962f671004f6d6b65c67f71a6b7635a7bfc53edc250eaa6069b", kill_on_drop: false }`
[INFO] [stdout] 8576f9b5418bc962f671004f6d6b65c67f71a6b7635a7bfc53edc250eaa6069b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb028e1e8df12f2de88d6cea48a723b903db3599d0cf77980329a8a6ee042532
[INFO] running `Command { std: "docker" "start" "-a" "fb028e1e8df12f2de88d6cea48a723b903db3599d0cf77980329a8a6ee042532", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking hashbrown v0.15.0
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]     Checking miniz_oxide v0.7.4
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking encoding_rs v0.8.34
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking rangemap v1.5.1
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]     Checking indexmap v2.6.0
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking time v0.3.36
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking lopdf v0.34.0
[INFO] [stderr]     Checking pdfmerge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |     let mut path = env::current_dir()?;
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |     let mut path = env::current_dir()?;
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.96s
[INFO] running `Command { std: "docker" "inspect" "fb028e1e8df12f2de88d6cea48a723b903db3599d0cf77980329a8a6ee042532", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb028e1e8df12f2de88d6cea48a723b903db3599d0cf77980329a8a6ee042532", kill_on_drop: false }`
[INFO] [stdout] fb028e1e8df12f2de88d6cea48a723b903db3599d0cf77980329a8a6ee042532