[INFO] fetching crate extra-embedded-io-adapters 0.1.0... [INFO] checking extra-embedded-io-adapters-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate extra-embedded-io-adapters 0.1.0 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate extra-embedded-io-adapters 0.1.0 [INFO] finished tweaking crates.io crate extra-embedded-io-adapters 0.1.0 [INFO] tweaked toml for crates.io crate extra-embedded-io-adapters 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate extra-embedded-io-adapters 0.1.0 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] crate crates.io crate extra-embedded-io-adapters 0.1.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9d27ab9e7c93c9533d717918f1f88a5fb1a6d0b02d46ec8bc0f18bd3b9db9c87 [INFO] running `Command { std: "docker" "start" "-a" "9d27ab9e7c93c9533d717918f1f88a5fb1a6d0b02d46ec8bc0f18bd3b9db9c87", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9d27ab9e7c93c9533d717918f1f88a5fb1a6d0b02d46ec8bc0f18bd3b9db9c87", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d27ab9e7c93c9533d717918f1f88a5fb1a6d0b02d46ec8bc0f18bd3b9db9c87", kill_on_drop: false }` [INFO] [stdout] 9d27ab9e7c93c9533d717918f1f88a5fb1a6d0b02d46ec8bc0f18bd3b9db9c87 [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 -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] 42ab017e8bab632a251cb37388c9516708aeb30fc939cb7174e391ecaff07c3c [INFO] running `Command { std: "docker" "start" "-a" "42ab017e8bab632a251cb37388c9516708aeb30fc939cb7174e391ecaff07c3c", kill_on_drop: false }` [INFO] [stderr] Checking crc-catalog v2.4.0 [INFO] [stderr] Checking embedded-io v0.7.1 [INFO] [stderr] Checking ciborium-io v0.2.2 [INFO] [stderr] Checking half v2.6.0 [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Checking sha2 v0.10.9 [INFO] [stderr] Checking crc v3.3.0 [INFO] [stderr] Checking extra-embedded-io-adapters v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:51:67 [INFO] [stdout] | [INFO] [stdout] 51 | fn write(&mut self, buf: &[u8]) -> Result { [INFO] [stdout] | ___________________________________________________________________^ [INFO] [stdout] 52 | | self.0.update(buf); [INFO] [stdout] 53 | | Ok(buf.len()) [INFO] [stdout] 54 | | } [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:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | Ok(buf.len()) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:70:67 [INFO] [stdout] | [INFO] [stdout] 70 | fn write(&mut self, buf: &[u8]) -> Result { [INFO] [stdout] | ___________________________________________________________________^ [INFO] [stdout] 71 | | self.0.update(buf); [INFO] [stdout] 72 | | Ok(buf.len()) [INFO] [stdout] 73 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | Ok(buf.len()) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:81:67 [INFO] [stdout] | [INFO] [stdout] 81 | fn write(&mut self, buf: &[u8]) -> Result { [INFO] [stdout] | ___________________________________________________________________^ [INFO] [stdout] 82 | | self.0.update(buf); [INFO] [stdout] 83 | | Ok(buf.len()) [INFO] [stdout] 84 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:83:9 [INFO] [stdout] | [INFO] [stdout] 83 | Ok(buf.len()) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] error: could not compile `extra-embedded-io-adapters` (lib) due to 6 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "42ab017e8bab632a251cb37388c9516708aeb30fc939cb7174e391ecaff07c3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42ab017e8bab632a251cb37388c9516708aeb30fc939cb7174e391ecaff07c3c", kill_on_drop: false }` [INFO] [stdout] 42ab017e8bab632a251cb37388c9516708aeb30fc939cb7174e391ecaff07c3c