[INFO] fetching crate cadence_json 0.1.2...
[INFO] checking cadence_json-0.1.2 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate cadence_json 0.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate cadence_json 0.1.2 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cadence_json 0.1.2
[INFO] finished tweaking crates.io crate cadence_json 0.1.2
[INFO] tweaked toml for crates.io crate cadence_json 0.1.2 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" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d606d906a5406e957d86f0ab99cf7a975c5c30bec333500a38a2b342b5e69ac
[INFO] running `Command { std: "docker" "start" "-a" "6d606d906a5406e957d86f0ab99cf7a975c5c30bec333500a38a2b342b5e69ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d606d906a5406e957d86f0ab99cf7a975c5c30bec333500a38a2b342b5e69ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d606d906a5406e957d86f0ab99cf7a975c5c30bec333500a38a2b342b5e69ac", kill_on_drop: false }`
[INFO] [stdout] 6d606d906a5406e957d86f0ab99cf7a975c5c30bec333500a38a2b342b5e69ac
[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" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f0433968051760092d20dbbd7b51e0c3dd5cb0ddfccc011a18f81305aae8c38
[INFO] running `Command { std: "docker" "start" "-a" "5f0433968051760092d20dbbd7b51e0c3dd5cb0ddfccc011a18f81305aae8c38", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking num-bigint v0.4.4
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]     Checking serde_with v1.14.0
[INFO] [stderr]     Checking serde_json v1.0.114
[INFO] [stderr]     Checking cadence_json v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BigInt` is imported redundantly
[INFO] [stdout]  --> src/tests/json.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num_bigint::{BigInt, BigUint, Sign};
[INFO] [stdout]   |                  ^^^^^^
[INFO] [stdout] 2 |
[INFO] [stdout] 3 | use crate::*;
[INFO] [stdout]   |     -------- the item `BigInt` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BigUint` is imported redundantly
[INFO] [stdout]  --> src/tests/json.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num_bigint::{BigInt, BigUint, Sign};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 2 |
[INFO] [stdout] 3 | use crate::*;
[INFO] [stdout]   |     -------- the item `BigUint` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.60s
[INFO] running `Command { std: "docker" "inspect" "5f0433968051760092d20dbbd7b51e0c3dd5cb0ddfccc011a18f81305aae8c38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f0433968051760092d20dbbd7b51e0c3dd5cb0ddfccc011a18f81305aae8c38", kill_on_drop: false }`
[INFO] [stdout] 5f0433968051760092d20dbbd7b51e0c3dd5cb0ddfccc011a18f81305aae8c38
