[INFO] fetching crate stellar 0.1.2-alpha...
[INFO] checking stellar-0.1.2-alpha against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate stellar 0.1.2-alpha into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate stellar 0.1.2-alpha 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 stellar 0.1.2-alpha
[INFO] finished tweaking crates.io crate stellar 0.1.2-alpha
[INFO] tweaked toml for crates.io crate stellar 0.1.2-alpha written to /workspace/builds/worker-0-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 16 packages
[INFO] [stderr]       Adding rand v0.3.23 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding time v0.1.45 (latest: v0.3.34)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 04d846ed864b4ef936ceb9e1a1c78670e330ba42c9e2b01810c5ec4e0b2aa6f3
[INFO] running `Command { std: "docker" "start" "-a" "04d846ed864b4ef936ceb9e1a1c78670e330ba42c9e2b01810c5ec4e0b2aa6f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d846ed864b4ef936ceb9e1a1c78670e330ba42c9e2b01810c5ec4e0b2aa6f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d846ed864b4ef936ceb9e1a1c78670e330ba42c9e2b01810c5ec4e0b2aa6f3", kill_on_drop: false }`
[INFO] [stdout] 04d846ed864b4ef936ceb9e1a1c78670e330ba42c9e2b01810c5ec4e0b2aa6f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8861518a51c1a92e0605418a3f60a3c80cf23f850d3c2672461119b0dc16269e
[INFO] running `Command { std: "docker" "start" "-a" "8861518a51c1a92e0605418a3f60a3c80cf23f850d3c2672461119b0dc16269e", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking stellar v0.1.2-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/types.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PublicKey([u8; 32]);
[INFO] [stdout]   |            --------- ^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `PublicKey` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PublicKey(());
[INFO] [stdout]   |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `public_key` is never read
[INFO] [stdout]  --> src/key_pair.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct KeyPair {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 6 |     public_key: PublicKey,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `KeyPair` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fee`, `source_account`, `sequence_number`, `operations`, `memo`, and `signatures` are never read
[INFO] [stdout]   --> src/transaction.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Transaction {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 10 |     fee: Integer,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 11 |     source_account: KeyPair,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     sequence_number: Long,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |     operations: Vec<Operation>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 14 |     memo: Memo,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     signatures: Vec<()>, // TODO: Port DecoratedSignatures
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/types.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PublicKey([u8; 32]);
[INFO] [stdout]   |            --------- ^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `PublicKey` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PublicKey(());
[INFO] [stdout]   |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `public_key` is never read
[INFO] [stdout]  --> src/key_pair.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct KeyPair {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 6 |     public_key: PublicKey,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `KeyPair` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `fee`, `source_account`, `sequence_number`, `operations`, `memo`, and `signatures` are never read
[INFO] [stdout]   --> src/transaction.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Transaction {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 10 |     fee: Integer,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 11 |     source_account: KeyPair,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     sequence_number: Long,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |     operations: Vec<Operation>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 14 |     memo: Memo,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     signatures: Vec<()>, // TODO: Port DecoratedSignatures
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.68s
[INFO] running `Command { std: "docker" "inspect" "8861518a51c1a92e0605418a3f60a3c80cf23f850d3c2672461119b0dc16269e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8861518a51c1a92e0605418a3f60a3c80cf23f850d3c2672461119b0dc16269e", kill_on_drop: false }`
[INFO] [stdout] 8861518a51c1a92e0605418a3f60a3c80cf23f850d3c2672461119b0dc16269e