[INFO] fetching crate serde_bucket 0.1.5... [INFO] building serde_bucket-0.1.5 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2 [INFO] extracting crate serde_bucket 0.1.5 into /workspace/builds/worker-4-tc1/source [INFO] started tweaking crates.io crate serde_bucket 0.1.5 [INFO] finished tweaking crates.io crate serde_bucket 0.1.5 [INFO] tweaked toml for crates.io crate serde_bucket 0.1.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate serde_bucket 0.1.5 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 11 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 14a7c4b2692743d26770b734882bb25d24ca1e6675e1074f9ba82ebbf60c25b9 [INFO] running `Command { std: "docker" "start" "-a" "14a7c4b2692743d26770b734882bb25d24ca1e6675e1074f9ba82ebbf60c25b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "14a7c4b2692743d26770b734882bb25d24ca1e6675e1074f9ba82ebbf60c25b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14a7c4b2692743d26770b734882bb25d24ca1e6675e1074f9ba82ebbf60c25b9", kill_on_drop: false }` [INFO] [stdout] 14a7c4b2692743d26770b734882bb25d24ca1e6675e1074f9ba82ebbf60c25b9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 249b5b8db65e22a5c20f80290bc7cddaf74af336757441d7686a570346f80115 [INFO] running `Command { std: "docker" "start" "-a" "249b5b8db65e22a5c20f80290bc7cddaf74af336757441d7686a570346f80115", kill_on_drop: false }` [INFO] [stderr] Compiling serde_bucket v0.1.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/de.rs:19:27 [INFO] [stdout] | [INFO] [stdout] 19 | fn deserialize_any(mut self, visitor: V) -> Result where V: Visitor<'de> { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s [INFO] running `Command { std: "docker" "inspect" "249b5b8db65e22a5c20f80290bc7cddaf74af336757441d7686a570346f80115", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "249b5b8db65e22a5c20f80290bc7cddaf74af336757441d7686a570346f80115", kill_on_drop: false }` [INFO] [stdout] 249b5b8db65e22a5c20f80290bc7cddaf74af336757441d7686a570346f80115 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 760e9c8b00b11a9982cba46dd7e6b084b866c863adabe80017a34a199c4654a9 [INFO] running `Command { std: "docker" "start" "-a" "760e9c8b00b11a9982cba46dd7e6b084b866c863adabe80017a34a199c4654a9", kill_on_drop: false }` [INFO] [stderr] Compiling serde_bucket v0.1.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/de.rs:19:27 [INFO] [stdout] | [INFO] [stdout] 19 | fn deserialize_any(mut self, visitor: V) -> Result where V: Visitor<'de> { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/de.rs:19:27 [INFO] [stdout] | [INFO] [stdout] 19 | fn deserialize_any(mut self, visitor: V) -> Result where V: Visitor<'de> { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `Command { std: "docker" "inspect" "760e9c8b00b11a9982cba46dd7e6b084b866c863adabe80017a34a199c4654a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "760e9c8b00b11a9982cba46dd7e6b084b866c863adabe80017a34a199c4654a9", kill_on_drop: false }` [INFO] [stdout] 760e9c8b00b11a9982cba46dd7e6b084b866c863adabe80017a34a199c4654a9