[INFO] fetching crate serde_dynamodb 0.9.0...
[INFO] checking serde_dynamodb-0.9.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate serde_dynamodb 0.9.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate serde_dynamodb 0.9.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_dynamodb 0.9.0
[INFO] finished tweaking crates.io crate serde_dynamodb 0.9.0
[INFO] tweaked toml for crates.io crate serde_dynamodb 0.9.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 155 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] [stderr]       Adding block-buffer v0.9.0 (available: v0.10.4)
[INFO] [stderr]       Adding core-foundation v0.9.4 (available: v0.10.0)
[INFO] [stderr]       Adding ct-logs v0.8.0 (available: v0.9.0)
[INFO] [stderr]       Adding digest v0.9.0 (available: v0.10.7)
[INFO] [stderr]       Adding foreign-types v0.3.2 (available: v0.5.0)
[INFO] [stderr]       Adding foreign-types-shared v0.1.1 (available: v0.3.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v1.1.0)
[INFO] [stderr]       Adding h2 v0.3.26 (available: v0.4.6)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (available: v0.4.0)
[INFO] [stderr]       Adding hmac v0.11.0 (available: v0.12.1)
[INFO] [stderr]       Adding http v0.2.12 (available: v1.1.0)
[INFO] [stderr]       Adding http-body v0.4.6 (available: v1.0.1)
[INFO] [stderr]       Adding hyper v0.14.30 (available: v1.4.1)
[INFO] [stderr]       Adding hyper-rustls v0.22.1 (available: v0.27.3)
[INFO] [stderr]       Adding hyper-tls v0.5.0 (available: v0.6.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
[INFO] [stderr]       Adding md-5 v0.9.1 (available: v0.10.6)
[INFO] [stderr]       Adding ring v0.16.20 (available: v0.17.8)
[INFO] [stderr]       Adding rusoto_core v0.47.0 (available: v0.48.0)
[INFO] [stderr]       Adding rusoto_credential v0.47.0 (available: v0.48.0)
[INFO] [stderr]       Adding rusoto_dynamodb v0.47.0 (available: v0.48.0)
[INFO] [stderr]       Adding rusoto_dynamodbstreams v0.47.0 (available: v0.48.0)
[INFO] [stderr]       Adding rusoto_signature v0.47.0 (available: v0.48.0)
[INFO] [stderr]       Adding rustls v0.19.1 (available: v0.23.13)
[INFO] [stderr]       Adding rustls-native-certs v0.5.0 (available: v0.8.0)
[INFO] [stderr]       Adding sct v0.6.1 (available: v0.7.1)
[INFO] [stderr]       Adding security-framework v2.11.1 (available: v3.0.0)
[INFO] [stderr]       Adding sha2 v0.9.9 (available: v0.10.8)
[INFO] [stderr]       Adding spin v0.5.2 (available: v0.9.8)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] [stderr]       Adding tokio-rustls v0.22.0 (available: v0.26.0)
[INFO] [stderr]       Adding untrusted v0.7.1 (available: v0.9.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding webpki v0.21.4 (available: v0.22.4)
[INFO] [stderr]       Adding windows-core v0.52.0 (available: v0.58.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23ca747734feebc1a8352db25a494394b75580508a5da6542b802d35193eeb75
[INFO] running `Command { std: "docker" "start" "-a" "23ca747734feebc1a8352db25a494394b75580508a5da6542b802d35193eeb75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23ca747734feebc1a8352db25a494394b75580508a5da6542b802d35193eeb75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23ca747734feebc1a8352db25a494394b75580508a5da6542b802d35193eeb75", kill_on_drop: false }`
[INFO] [stdout] 23ca747734feebc1a8352db25a494394b75580508a5da6542b802d35193eeb75
[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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81f9a3a6cf0d1423364347aeefccbe5cc6e031c4b1fed3792c866021a28e3413
[INFO] running `Command { std: "docker" "start" "-a" "81f9a3a6cf0d1423364347aeefccbe5cc6e031c4b1fed3792c866021a28e3413", kill_on_drop: false }`
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]    Compiling rusoto_core v0.47.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking tokio-util v0.7.12
[INFO] [stderr]     Checking ct-logs v0.8.0
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking rustls-native-certs v0.5.0
[INFO] [stderr]     Checking hyper v0.14.30
[INFO] [stderr]     Checking rusoto_credential v0.47.0
[INFO] [stderr]     Checking hyper-rustls v0.22.1
[INFO] [stderr]     Checking rusoto_signature v0.47.0
[INFO] [stderr]     Checking rusoto_dynamodb v0.47.0
[INFO] [stderr]     Checking serde_dynamodb v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `k` is never read
[INFO] [stdout]   --> tests/dynamodb.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     struct Internal {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 36 |         k: i32,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Internal` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `i`, `j`, and `intern` are never read
[INFO] [stdout]   --> tests/dynamodb.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     struct Basic {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 40 |         i: i32,
[INFO] [stdout]    |         ^
[INFO] [stdout] 41 |         j: i32,
[INFO] [stdout]    |         ^
[INFO] [stdout] 42 |         intern: Internal,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Basic` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.06s
[INFO] running `Command { std: "docker" "inspect" "81f9a3a6cf0d1423364347aeefccbe5cc6e031c4b1fed3792c866021a28e3413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81f9a3a6cf0d1423364347aeefccbe5cc6e031c4b1fed3792c866021a28e3413", kill_on_drop: false }`
[INFO] [stdout] 81f9a3a6cf0d1423364347aeefccbe5cc6e031c4b1fed3792c866021a28e3413