[INFO] fetching crate streaming-decompression 0.1.2... [INFO] checking streaming-decompression-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate streaming-decompression 0.1.2 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate streaming-decompression 0.1.2 [INFO] finished tweaking crates.io crate streaming-decompression 0.1.2 [INFO] tweaked toml for crates.io crate streaming-decompression 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate streaming-decompression 0.1.2 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 1 package to latest compatible version [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f3ec472622201ae7756b377908890ae53519b8cb348a1394db55117dfeb1fa1d [INFO] running `Command { std: "docker" "start" "-a" "f3ec472622201ae7756b377908890ae53519b8cb348a1394db55117dfeb1fa1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f3ec472622201ae7756b377908890ae53519b8cb348a1394db55117dfeb1fa1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3ec472622201ae7756b377908890ae53519b8cb348a1394db55117dfeb1fa1d", kill_on_drop: false }` [INFO] [stdout] f3ec472622201ae7756b377908890ae53519b8cb348a1394db55117dfeb1fa1d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ac35449a93fa2a054667eeef8f9ec1fc29d9bcaf250460e8be2e314aa78d39ae [INFO] running `Command { std: "docker" "start" "-a" "ac35449a93fa2a054667eeef8f9ec1fc29d9bcaf250460e8be2e314aa78d39ae", kill_on_drop: false }` [INFO] [stderr] Checking fallible-streaming-iterator v0.1.9 [INFO] [stderr] Checking streaming-decompression v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:142:61 [INFO] [stdout] | [INFO] [stdout] 142 | ) -> Result { [INFO] [stdout] | _____________________________________________________________^ [INFO] [stdout] 143 | | if i.is_compressed() { [INFO] [stdout] 144 | | // the actual decompression, more complex stuff can happen. [INFO] [stdout] 145 | | buffer.clear(); [INFO] [stdout] ... | [INFO] [stdout] 153 | | }) [INFO] [stdout] 154 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:150:9 [INFO] [stdout] | [INFO] [stdout] 150 | / Ok(DecompressedItem { [INFO] [stdout] 151 | | metadata: i.metadata, [INFO] [stdout] 152 | | data: std::mem::take(buffer), [INFO] [stdout] 153 | | }) [INFO] [stdout] | |__________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:162:20 [INFO] [stdout] | [INFO] [stdout] 162 | let iter = vec![Ok(item)].into_iter(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:162:20 [INFO] [stdout] | [INFO] [stdout] 162 | let iter = vec![Ok(item)].into_iter(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:162:25 [INFO] [stdout] | [INFO] [stdout] 162 | let iter = vec![Ok(item)].into_iter(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/lib.rs:167:20 [INFO] [stdout] | [INFO] [stdout] 167 | let item = decompressor.next().unwrap().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/lib.rs:170:20 [INFO] [stdout] | [INFO] [stdout] 170 | assert_eq!(decompressor.next().unwrap(), None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:182:20 [INFO] [stdout] | [INFO] [stdout] 182 | let iter = vec![Ok(item)].into_iter(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:182:20 [INFO] [stdout] | [INFO] [stdout] 182 | let iter = vec![Ok(item)].into_iter(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:182:25 [INFO] [stdout] | [INFO] [stdout] 182 | let iter = vec![Ok(item)].into_iter(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/lib.rs:187:20 [INFO] [stdout] | [INFO] [stdout] 187 | let item = decompressor.next().unwrap().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/lib.rs:190:20 [INFO] [stdout] | [INFO] [stdout] 190 | assert_eq!(decompressor.next().unwrap(), None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `streaming-decompression` (lib test) due to 12 previous errors [INFO] running `Command { std: "docker" "inspect" "ac35449a93fa2a054667eeef8f9ec1fc29d9bcaf250460e8be2e314aa78d39ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac35449a93fa2a054667eeef8f9ec1fc29d9bcaf250460e8be2e314aa78d39ae", kill_on_drop: false }` [INFO] [stdout] ac35449a93fa2a054667eeef8f9ec1fc29d9bcaf250460e8be2e314aa78d39ae