[INFO] fetching crate msaver 0.1.1...
[INFO] checking msaver-0.1.1 against try#f17e3a389e192f83fe27a581774a9d1dbb8e565b for pr-137394
[INFO] extracting crate msaver 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate msaver 0.1.1 on toolchain f17e3a389e192f83fe27a581774a9d1dbb8e565b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate msaver 0.1.1
[INFO] finished tweaking crates.io crate msaver 0.1.1
[INFO] tweaked toml for crates.io crate msaver 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 342 packages to latest compatible versions
[INFO] [stderr]       Adding mongodb v2.8.2 (available: v3.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c051234a81a594ba676b040d81b32317e85f62f168967eedaf2c6c7ae26c6ff
[INFO] running `Command { std: "docker" "start" "-a" "3c051234a81a594ba676b040d81b32317e85f62f168967eedaf2c6c7ae26c6ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c051234a81a594ba676b040d81b32317e85f62f168967eedaf2c6c7ae26c6ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c051234a81a594ba676b040d81b32317e85f62f168967eedaf2c6c7ae26c6ff", kill_on_drop: false }`
[INFO] [stdout] 3c051234a81a594ba676b040d81b32317e85f62f168967eedaf2c6c7ae26c6ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d8436f92321e5cf57cc8e2f7be0b0a7208af82f28b7b39ad6624a8a0a0f7082
[INFO] running `Command { std: "docker" "start" "-a" "8d8436f92321e5cf57cc8e2f7be0b0a7208af82f28b7b39ad6624a8a0a0f7082", kill_on_drop: false }`
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[INFO] [stderr]     Checking msaver v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/mongodb_saver.rs:173:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |                     Error { kind, .. } => {
[INFO] [stdout]     |                     ------------------ matches any value
[INFO] [stdout] ...
[INFO] [stdout] 173 |                     _ => {
[INFO] [stdout]     |                     ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/mongodb_saver.rs:173:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |                     Error { kind, .. } => {
[INFO] [stdout]     |                     ------------------ matches any value
[INFO] [stdout] ...
[INFO] [stdout] 173 |                     _ => {
[INFO] [stdout]     |                     ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `database`
[INFO] [stdout]    --> src/mongodb_saver.rs:391:43
[INFO] [stdout]     |
[INFO] [stdout] 391 |     pub async fn vacuum_local(pool: Pool, database: Database) {
[INFO] [stdout]     |                                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_database`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch_data`
[INFO] [stdout]    --> src/mongodb_saver.rs:394:13
[INFO] [stdout]     |
[INFO] [stdout] 394 |         let batch_data = conn.interact(|conn| {
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `database`
[INFO] [stdout]    --> src/mongodb_saver.rs:391:43
[INFO] [stdout]     |
[INFO] [stdout] 391 |     pub async fn vacuum_local(pool: Pool, database: Database) {
[INFO] [stdout]     |                                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_database`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch_data`
[INFO] [stdout]    --> src/mongodb_saver.rs:394:13
[INFO] [stdout]     |
[INFO] [stdout] 394 |         let batch_data = conn.interact(|conn| {
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 57.42s
[INFO] running `Command { std: "docker" "inspect" "8d8436f92321e5cf57cc8e2f7be0b0a7208af82f28b7b39ad6624a8a0a0f7082", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d8436f92321e5cf57cc8e2f7be0b0a7208af82f28b7b39ad6624a8a0a0f7082", kill_on_drop: false }`
[INFO] [stdout] 8d8436f92321e5cf57cc8e2f7be0b0a7208af82f28b7b39ad6624a8a0a0f7082