[INFO] fetching crate jpng 0.1.0... [INFO] checking jpng-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate jpng 0.1.0 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate jpng 0.1.0 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 crates.io crate jpng 0.1.0 [INFO] finished tweaking crates.io crate jpng 0.1.0 [INFO] tweaked toml for crates.io crate jpng 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 48 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding deflate v0.7.20 (latest: v1.0.0) [INFO] [stderr] Adding gif v0.10.3 (latest: v0.13.1) [INFO] [stderr] Adding image v0.19.0 (latest: v0.25.1) [INFO] [stderr] Adding jpeg-decoder v0.1.22 (latest: v0.3.1) [INFO] [stderr] Adding num-derive v0.2.5 (latest: v0.4.2) [INFO] [stderr] Adding num-rational v0.1.42 (latest: v0.4.1) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] [stderr] Adding png v0.12.0 (latest: v0.17.13) [INFO] [stderr] Adding proc-macro2 v0.4.30 (latest: v1.0.79) [INFO] [stderr] Adding quote v0.6.13 (latest: v1.0.35) [INFO] [stderr] Adding syn v0.15.44 (latest: v2.0.58) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding synstructure v0.12.6 (latest: v0.13.1) [INFO] [stderr] Adding unicode-xid v0.1.0 (latest: v0.2.4) [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] Downloading crates ... [INFO] [stderr] Downloaded png v0.12.0 [INFO] [stderr] Downloaded num-rational v0.1.42 [INFO] [stderr] Downloaded image v0.19.0 [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] 80d5ec5ae31710c706fcc0ab4661efe5144724c74a860db9f6187be6cd163af8 [INFO] running `Command { std: "docker" "start" "-a" "80d5ec5ae31710c706fcc0ab4661efe5144724c74a860db9f6187be6cd163af8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "80d5ec5ae31710c706fcc0ab4661efe5144724c74a860db9f6187be6cd163af8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "80d5ec5ae31710c706fcc0ab4661efe5144724c74a860db9f6187be6cd163af8", kill_on_drop: false }` [INFO] [stdout] 80d5ec5ae31710c706fcc0ab4661efe5144724c74a860db9f6187be6cd163af8 [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] 9ad8564626963917eb231a13b52caff4abef850c4a0064191d1abf49d9f80500 [INFO] running `Command { std: "docker" "start" "-a" "9ad8564626963917eb231a13b52caff4abef850c4a0064191d1abf49d9f80500", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking either v1.10.0 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking num-iter v0.1.44 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking backtrace v0.3.71 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking gif v0.10.3 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking png v0.12.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking image v0.19.0 [INFO] [stderr] Checking jpng v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `footer_size` is never read [INFO] [stdout] --> src/footer.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct JpngFooter { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 13 | footer_size: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `JpngFooter` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `footer_size` is never read [INFO] [stdout] --> src/footer.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct JpngFooter { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 13 | footer_size: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `JpngFooter` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/lib.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | / self.image [INFO] [stdout] 69 | | .to_rgba() [INFO] [stdout] 70 | | .enumerate_pixels() [INFO] [stdout] 71 | | .zip(luma.pixels()) [INFO] [stdout] ... | [INFO] [stdout] 76 | | }); [INFO] [stdout] 77 | | }).collect::<()>(); [INFO] [stdout] | |______________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 68 | let _ = self.image [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/lib.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | / self.image [INFO] [stdout] 69 | | .to_rgba() [INFO] [stdout] 70 | | .enumerate_pixels() [INFO] [stdout] 71 | | .zip(luma.pixels()) [INFO] [stdout] ... | [INFO] [stdout] 76 | | }); [INFO] [stdout] 77 | | }).collect::<()>(); [INFO] [stdout] | |______________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 68 | let _ = self.image [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.76s [INFO] running `Command { std: "docker" "inspect" "9ad8564626963917eb231a13b52caff4abef850c4a0064191d1abf49d9f80500", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ad8564626963917eb231a13b52caff4abef850c4a0064191d1abf49d9f80500", kill_on_drop: false }` [INFO] [stdout] 9ad8564626963917eb231a13b52caff4abef850c4a0064191d1abf49d9f80500 [INFO] checking jpng-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate jpng 0.1.0 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate jpng 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate jpng 0.1.0 [INFO] finished tweaking crates.io crate jpng 0.1.0 [INFO] tweaked toml for crates.io crate jpng 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6c03a81cf6fae0e6fe837f94082bf3986d80831d6be42b36e9bf2969d65d11e2 [INFO] running `Command { std: "docker" "start" "-a" "6c03a81cf6fae0e6fe837f94082bf3986d80831d6be42b36e9bf2969d65d11e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6c03a81cf6fae0e6fe837f94082bf3986d80831d6be42b36e9bf2969d65d11e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c03a81cf6fae0e6fe837f94082bf3986d80831d6be42b36e9bf2969d65d11e2", kill_on_drop: false }` [INFO] [stdout] 6c03a81cf6fae0e6fe837f94082bf3986d80831d6be42b36e9bf2969d65d11e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c177b6fe1c4b6480f026e754f5332923c8b0f2609813bfca681f84ca10f39b9a [INFO] running `Command { std: "docker" "start" "-a" "c177b6fe1c4b6480f026e754f5332923c8b0f2609813bfca681f84ca10f39b9a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Checking either v1.10.0 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking backtrace v0.3.71 [INFO] [stderr] Checking num-iter v0.1.44 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking gif v0.10.3 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking png v0.12.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking image v0.19.0 [INFO] [stderr] Checking jpng v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `footer_size` is never read [INFO] [stdout] --> src/footer.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct JpngFooter { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 13 | footer_size: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `JpngFooter` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/lib.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | / self.image [INFO] [stdout] 69 | | .to_rgba() [INFO] [stdout] 70 | | .enumerate_pixels() [INFO] [stdout] 71 | | .zip(luma.pixels()) [INFO] [stdout] ... | [INFO] [stdout] 76 | | }); [INFO] [stdout] 77 | | }).collect::<()>(); [INFO] [stdout] | |______________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 68 | let _ = self.image [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `footer_size` is never read [INFO] [stdout] --> src/footer.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct JpngFooter { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 13 | footer_size: u16, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `JpngFooter` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/lib.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | / self.image [INFO] [stdout] 69 | | .to_rgba() [INFO] [stdout] 70 | | .enumerate_pixels() [INFO] [stdout] 71 | | .zip(luma.pixels()) [INFO] [stdout] ... | [INFO] [stdout] 76 | | }); [INFO] [stdout] 77 | | }).collect::<()>(); [INFO] [stdout] | |______________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 68 | let _ = self.image [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 8.71s [INFO] running `Command { std: "docker" "inspect" "c177b6fe1c4b6480f026e754f5332923c8b0f2609813bfca681f84ca10f39b9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c177b6fe1c4b6480f026e754f5332923c8b0f2609813bfca681f84ca10f39b9a", kill_on_drop: false }` [INFO] [stdout] c177b6fe1c4b6480f026e754f5332923c8b0f2609813bfca681f84ca10f39b9a