[INFO] fetching crate alex-db-client 0.1.0...
[INFO] checking alex-db-client-0.1.0 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate alex-db-client 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate alex-db-client 0.1.0 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alex-db-client 0.1.0
[INFO] finished tweaking crates.io crate alex-db-client 0.1.0
[INFO] tweaked toml for crates.io crate alex-db-client 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate alex-db-client 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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lz4_flex v0.10.0
[INFO] [stderr]   Downloaded utoipa v3.0.2
[INFO] [stderr]   Downloaded alex-db-lib v0.1.0
[INFO] [stderr]   Downloaded utoipa-gen v3.0.2
[INFO] [stderr]   Downloaded reedline v0.13.0
[INFO] [stderr]   Downloaded reedline-repl-rs v1.0.3
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2a6cd02bfc7bac1a6d4375ef356b8a35e783bff765c1ddc260892308dc31f80
[INFO] running `Command { std: "docker" "start" "-a" "b2a6cd02bfc7bac1a6d4375ef356b8a35e783bff765c1ddc260892308dc31f80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2a6cd02bfc7bac1a6d4375ef356b8a35e783bff765c1ddc260892308dc31f80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2a6cd02bfc7bac1a6d4375ef356b8a35e783bff765c1ddc260892308dc31f80", kill_on_drop: false }`
[INFO] [stdout] b2a6cd02bfc7bac1a6d4375ef356b8a35e783bff765c1ddc260892308dc31f80
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 055e2c586ba1242770b1aeaa42710a5bde8f2f57d93c0bf8db612c4509363695
[INFO] running `Command { std: "docker" "start" "-a" "055e2c586ba1242770b1aeaa42710a5bde8f2f57d93c0bf8db612c4509363695", kill_on_drop: false }`
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[INFO] [stderr]     Checking reqwest v0.11.14
[INFO] [stderr]     Checking alex-db-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/connect.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     for mut connection in context.connections.iter_mut() {
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/connect.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     for mut connection in context.connections.iter_mut() {
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.05s
[INFO] running `Command { std: "docker" "inspect" "055e2c586ba1242770b1aeaa42710a5bde8f2f57d93c0bf8db612c4509363695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "055e2c586ba1242770b1aeaa42710a5bde8f2f57d93c0bf8db612c4509363695", kill_on_drop: false }`
[INFO] [stdout] 055e2c586ba1242770b1aeaa42710a5bde8f2f57d93c0bf8db612c4509363695
