[INFO] fetching crate cpi 0.2.0... [INFO] checking cpi-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate cpi 0.2.0 into /workspace/builds/worker-1-tc1/source [INFO] validating manifest of crates.io crate cpi 0.2.0 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 cpi 0.2.0 [INFO] finished tweaking crates.io crate cpi 0.2.0 [INFO] tweaked toml for crates.io crate cpi 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate crates.io crate cpi 0.2.0 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 path-absolutize v3.1.0 [INFO] [stderr] Downloaded path-dedot v3.1.0 [INFO] [stderr] Downloaded pbkdf2 v0.11.0 [INFO] [stderr] Downloaded bzip2 v0.4.4 [INFO] [stderr] Downloaded password-hash v0.4.2 [INFO] [stderr] Downloaded deranged v0.3.8 [INFO] [stderr] Downloaded flate2 v1.0.27 [INFO] [stderr] Downloaded aes v0.8.3 [INFO] [stderr] Downloaded time v0.3.28 [INFO] [stderr] Downloaded jobserver v0.1.26 [INFO] [stderr] Downloaded zstd-sys v2.0.8+zstd.1.5.5 [INFO] [stderr] Downloaded zip v0.6.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e239ec8128129ed9370e5d04659beb6eb643e147c507212f07c603d132cf8da7 [INFO] running `Command { std: "docker" "start" "-a" "e239ec8128129ed9370e5d04659beb6eb643e147c507212f07c603d132cf8da7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e239ec8128129ed9370e5d04659beb6eb643e147c507212f07c603d132cf8da7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e239ec8128129ed9370e5d04659beb6eb643e147c507212f07c603d132cf8da7", kill_on_drop: false }` [INFO] [stdout] e239ec8128129ed9370e5d04659beb6eb643e147c507212f07c603d132cf8da7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 3170fccbf58db8a449f0e16196898b47a8ec218125e794d83e9b266fc7c469be [INFO] running `Command { std: "docker" "start" "-a" "3170fccbf58db8a449f0e16196898b47a8ec218125e794d83e9b266fc7c469be", kill_on_drop: false }` [INFO] [stderr] Compiling typenum v1.16.0 [INFO] [stderr] Checking subtle v2.5.0 [INFO] [stderr] Checking regex-syntax v0.7.4 [INFO] [stderr] Checking cpufeatures v0.2.9 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Compiling zstd-safe v5.0.2+zstd.1.5.2 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking base64ct v1.6.0 [INFO] [stderr] Checking log v0.4.19 [INFO] [stderr] Checking miniz_oxide v0.7.1 [INFO] [stderr] Checking bstr v1.6.0 [INFO] [stderr] Checking time-core v0.1.1 [INFO] [stderr] Checking deranged v0.3.8 [INFO] [stderr] Checking thread_local v1.1.7 [INFO] [stderr] Checking path-dedot v3.1.0 [INFO] [stderr] Checking termcolor v1.2.0 [INFO] [stderr] Checking constant_time_eq v0.1.5 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking path-absolutize v3.1.0 [INFO] [stderr] Checking clap v4.3.19 [INFO] [stderr] Checking pathdiff v0.2.1 [INFO] [stderr] Checking password-hash v0.4.2 [INFO] [stderr] Checking flate2 v1.0.27 [INFO] [stderr] Compiling jobserver v0.1.26 [INFO] [stderr] Compiling cc v1.0.79 [INFO] [stderr] Checking time v0.3.28 [INFO] [stderr] Compiling zstd-sys v2.0.8+zstd.1.5.5 [INFO] [stderr] Compiling bzip2-sys v0.1.11+1.0.8 [INFO] [stderr] Checking generic-array v0.14.7 [INFO] [stderr] Checking regex-automata v0.3.4 [INFO] [stderr] Checking bzip2 v0.4.4 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking block-buffer v0.10.4 [INFO] [stderr] Checking inout v0.1.3 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Checking cipher v0.4.4 [INFO] [stderr] Checking sha2 v0.10.7 [INFO] [stderr] Checking hmac v0.12.1 [INFO] [stderr] Checking sha1 v0.10.5 [INFO] [stderr] Checking aes v0.8.3 [INFO] [stderr] Checking pbkdf2 v0.11.0 [INFO] [stderr] Checking regex v1.9.1 [INFO] [stderr] Checking globset v0.4.12 [INFO] [stderr] Checking env_logger v0.10.0 [INFO] [stderr] Checking ignore v0.4.20 [INFO] [stderr] Checking zstd v0.11.2+zstd.1.5.2 [INFO] [stderr] Checking zip v0.6.6 [INFO] [stderr] Checking cpi v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:210:29 [INFO] [stdout] | [INFO] [stdout] 210 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:210:29 [INFO] [stdout] | [INFO] [stdout] 210 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:206:29 [INFO] [stdout] | [INFO] [stdout] 206 | ... io::copy(&mut file, &mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 206 | let _ = io::copy(&mut file, &mut buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:206:29 [INFO] [stdout] | [INFO] [stdout] 206 | ... io::copy(&mut file, &mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 206 | let _ = io::copy(&mut file, &mut buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:208:29 [INFO] [stdout] | [INFO] [stdout] 208 | ... zip_writer.write_all(&buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 208 | let _ = zip_writer.write_all(&buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:208:29 [INFO] [stdout] | [INFO] [stdout] 208 | ... zip_writer.write_all(&buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 208 | let _ = zip_writer.write_all(&buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.53s [INFO] running `Command { std: "docker" "inspect" "3170fccbf58db8a449f0e16196898b47a8ec218125e794d83e9b266fc7c469be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3170fccbf58db8a449f0e16196898b47a8ec218125e794d83e9b266fc7c469be", kill_on_drop: false }` [INFO] [stdout] 3170fccbf58db8a449f0e16196898b47a8ec218125e794d83e9b266fc7c469be [INFO] checking cpi-0.2.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate cpi 0.2.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate cpi 0.2.0 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 cpi 0.2.0 [INFO] finished tweaking crates.io crate cpi 0.2.0 [INFO] tweaked toml for crates.io crate cpi 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate crates.io crate cpi 0.2.0 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 254f7fd4f7cdc7dfa9bcc21ba719aa20998ef771c8c76b23324f4d4f07395800 [INFO] running `Command { std: "docker" "start" "-a" "254f7fd4f7cdc7dfa9bcc21ba719aa20998ef771c8c76b23324f4d4f07395800", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "254f7fd4f7cdc7dfa9bcc21ba719aa20998ef771c8c76b23324f4d4f07395800", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "254f7fd4f7cdc7dfa9bcc21ba719aa20998ef771c8c76b23324f4d4f07395800", kill_on_drop: false }` [INFO] [stdout] 254f7fd4f7cdc7dfa9bcc21ba719aa20998ef771c8c76b23324f4d4f07395800 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4bec92420ff18524a4db678e27ac954081548803fac48004fa85827b36907275 [INFO] running `Command { std: "docker" "start" "-a" "4bec92420ff18524a4db678e27ac954081548803fac48004fa85827b36907275", kill_on_drop: false }` [INFO] [stderr] Compiling typenum v1.16.0 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Checking subtle v2.5.0 [INFO] [stderr] Checking regex-syntax v0.7.4 [INFO] [stderr] Checking cpufeatures v0.2.9 [INFO] [stderr] Compiling zstd-safe v5.0.2+zstd.1.5.2 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Checking base64ct v1.6.0 [INFO] [stderr] Checking log v0.4.19 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking miniz_oxide v0.7.1 [INFO] [stderr] Checking bstr v1.6.0 [INFO] [stderr] Checking deranged v0.3.8 [INFO] [stderr] Checking time-core v0.1.1 [INFO] [stderr] Checking thread_local v1.1.7 [INFO] [stderr] Checking path-dedot v3.1.0 [INFO] [stderr] Checking termcolor v1.2.0 [INFO] [stderr] Checking constant_time_eq v0.1.5 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking path-absolutize v3.1.0 [INFO] [stderr] Checking clap v4.3.19 [INFO] [stderr] Checking pathdiff v0.2.1 [INFO] [stderr] Checking password-hash v0.4.2 [INFO] [stderr] Checking flate2 v1.0.27 [INFO] [stderr] Compiling jobserver v0.1.26 [INFO] [stderr] Checking time v0.3.28 [INFO] [stderr] Compiling cc v1.0.79 [INFO] [stderr] Checking generic-array v0.14.7 [INFO] [stderr] Compiling zstd-sys v2.0.8+zstd.1.5.5 [INFO] [stderr] Compiling bzip2-sys v0.1.11+1.0.8 [INFO] [stderr] Checking regex-automata v0.3.4 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking block-buffer v0.10.4 [INFO] [stderr] Checking inout v0.1.3 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Checking cipher v0.4.4 [INFO] [stderr] Checking sha2 v0.10.7 [INFO] [stderr] Checking hmac v0.12.1 [INFO] [stderr] Checking aes v0.8.3 [INFO] [stderr] Checking sha1 v0.10.5 [INFO] [stderr] Checking bzip2 v0.4.4 [INFO] [stderr] Checking pbkdf2 v0.11.0 [INFO] [stderr] Checking regex v1.9.1 [INFO] [stderr] Checking globset v0.4.12 [INFO] [stderr] Checking env_logger v0.10.0 [INFO] [stderr] Checking ignore v0.4.20 [INFO] [stderr] Checking zstd v0.11.2+zstd.1.5.2 [INFO] [stderr] Checking zip v0.6.6 [INFO] [stderr] Checking cpi v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:210:29 [INFO] [stdout] | [INFO] [stdout] 210 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:210:29 [INFO] [stdout] | [INFO] [stdout] 210 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:206:29 [INFO] [stdout] | [INFO] [stdout] 206 | ... io::copy(&mut file, &mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 206 | let _ = io::copy(&mut file, &mut buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:208:29 [INFO] [stdout] | [INFO] [stdout] 208 | ... zip_writer.write_all(&buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 208 | let _ = zip_writer.write_all(&buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:206:29 [INFO] [stdout] | [INFO] [stdout] 206 | ... io::copy(&mut file, &mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 206 | let _ = io::copy(&mut file, &mut buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:208:29 [INFO] [stdout] | [INFO] [stdout] 208 | ... zip_writer.write_all(&buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 208 | let _ = zip_writer.write_all(&buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.05s [INFO] running `Command { std: "docker" "inspect" "4bec92420ff18524a4db678e27ac954081548803fac48004fa85827b36907275", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4bec92420ff18524a4db678e27ac954081548803fac48004fa85827b36907275", kill_on_drop: false }` [INFO] [stdout] 4bec92420ff18524a4db678e27ac954081548803fac48004fa85827b36907275