[INFO] cloning repository https://github.com/Daiki48/pdf_print
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Daiki48/pdf_print" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaiki48%2Fpdf_print", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaiki48%2Fpdf_print'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57a10ab9d2cbf17744e1168781ec30de5633f5ac
[INFO] checking Daiki48/pdf_print against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaiki48%2Fpdf_print" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Daiki48/pdf_print on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Daiki48/pdf_print
[INFO] finished tweaking git repo https://github.com/Daiki48/pdf_print
[INFO] tweaked toml for git repo https://github.com/Daiki48/pdf_print written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Daiki48/pdf_print 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lopdf v0.27.0
[INFO] [stderr]   Downloaded pom v3.2.0
[INFO] [stderr]   Downloaded printpdf v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22eaa0b690bef9d7b77c1e29345e3e2202c6674f6bccec622c2dacfd0569d26c
[INFO] running `Command { std: "docker" "start" "-a" "22eaa0b690bef9d7b77c1e29345e3e2202c6674f6bccec622c2dacfd0569d26c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22eaa0b690bef9d7b77c1e29345e3e2202c6674f6bccec622c2dacfd0569d26c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22eaa0b690bef9d7b77c1e29345e3e2202c6674f6bccec622c2dacfd0569d26c", kill_on_drop: false }`
[INFO] [stdout] 22eaa0b690bef9d7b77c1e29345e3e2202c6674f6bccec622c2dacfd0569d26c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37d3ae269d117a4cc46b30bb49feb572fc1616185f3e1b08f8855e4317e72093
[INFO] running `Command { std: "docker" "start" "-a" "37d3ae269d117a4cc46b30bb49feb572fc1616185f3e1b08f8855e4317e72093", kill_on_drop: false }`
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling const_fn v0.4.9
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking pom v3.2.0
[INFO] [stderr]     Checking ttf-parser v0.12.3
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking owned_ttf_parser v0.12.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking lopdf v0.27.0
[INFO] [stderr]     Checking printpdf v0.5.3
[INFO] [stderr]     Checking pdf_print v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `page1`
[INFO] [stdout]  --> src/simple.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (doc, page1, layer1) = PdfDocument::new(
[INFO] [stdout]   |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_page1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layer1`
[INFO] [stdout]  --> src/simple.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (doc, page1, layer1) = PdfDocument::new(
[INFO] [stdout]   |                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layer1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page2`
[INFO] [stdout]   --> src/simple.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let (page2, layer1) = doc.add_page(
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_page2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layer1`
[INFO] [stdout]   --> src/simple.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let (page2, layer1) = doc.add_page(
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layer1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page1`
[INFO] [stdout]  --> src/simple.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (doc, page1, layer1) = PdfDocument::new(
[INFO] [stdout]   |               ^^^^^ help: if this is intentional, prefix it with an underscore: `_page1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layer1`
[INFO] [stdout]  --> src/simple.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (doc, page1, layer1) = PdfDocument::new(
[INFO] [stdout]   |                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layer1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page2`
[INFO] [stdout]   --> src/simple.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let (page2, layer1) = doc.add_page(
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_page2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layer1`
[INFO] [stdout]   --> src/simple.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let (page2, layer1) = doc.add_page(
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layer1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.49s
[INFO] running `Command { std: "docker" "inspect" "37d3ae269d117a4cc46b30bb49feb572fc1616185f3e1b08f8855e4317e72093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37d3ae269d117a4cc46b30bb49feb572fc1616185f3e1b08f8855e4317e72093", kill_on_drop: false }`
[INFO] [stdout] 37d3ae269d117a4cc46b30bb49feb572fc1616185f3e1b08f8855e4317e72093