[INFO] fetching crate serde_dynamodb 0.9.0...
[INFO] checking serde_dynamodb-0.9.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate serde_dynamodb 0.9.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate serde_dynamodb 0.9.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 165 packages
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusoto_credential v0.47.0
[INFO] [stderr]   Downloaded rusoto_dynamodbstreams v0.47.0
[INFO] [stderr]   Downloaded rusoto_signature v0.47.0
[INFO] [stderr]   Downloaded rusoto_dynamodb v0.47.0
[INFO] [stderr]   Downloaded rusoto_core v0.47.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a53e1d42d8858e498ac76f3161d970621de2fc7d5564031dd0b55be8a884adf4
[INFO] running `Command { std: "docker" "start" "-a" "a53e1d42d8858e498ac76f3161d970621de2fc7d5564031dd0b55be8a884adf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a53e1d42d8858e498ac76f3161d970621de2fc7d5564031dd0b55be8a884adf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a53e1d42d8858e498ac76f3161d970621de2fc7d5564031dd0b55be8a884adf4", kill_on_drop: false }`
[INFO] [stdout] a53e1d42d8858e498ac76f3161d970621de2fc7d5564031dd0b55be8a884adf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f5619021f507bd37b83eb5c7824a9ceca0144f096d66dc7c042ae795d7ba535
[INFO] running `Command { std: "docker" "start" "-a" "6f5619021f507bd37b83eb5c7824a9ceca0144f096d66dc7c042ae795d7ba535", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking num_cpus v1.16.0
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[INFO] [stderr]     Checking digest v0.9.0
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[INFO] [stderr]     Checking crypto-mac v0.11.1
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[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking sha2 v0.9.9
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[INFO] [stderr]    Compiling rusoto_core v0.47.0
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[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]     Checking sct v0.6.1
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[INFO] [stderr]     Checking tokio v1.37.0
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[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking serde_json v1.0.115
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[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 43.88s
[INFO] running `Command { std: "docker" "inspect" "6f5619021f507bd37b83eb5c7824a9ceca0144f096d66dc7c042ae795d7ba535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f5619021f507bd37b83eb5c7824a9ceca0144f096d66dc7c042ae795d7ba535", kill_on_drop: false }`
[INFO] [stdout] 6f5619021f507bd37b83eb5c7824a9ceca0144f096d66dc7c042ae795d7ba535