[INFO] fetching crate cadence_json 0.1.2...
[INFO] checking cadence_json-0.1.2 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate cadence_json 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate cadence_json 0.1.2 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "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-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfc5f202fb51cb671dc0ee77e2de0060f4ca2919c89a5ac60e73b92a2703b563
[INFO] running `Command { std: "docker" "start" "-a" "cfc5f202fb51cb671dc0ee77e2de0060f4ca2919c89a5ac60e73b92a2703b563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfc5f202fb51cb671dc0ee77e2de0060f4ca2919c89a5ac60e73b92a2703b563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfc5f202fb51cb671dc0ee77e2de0060f4ca2919c89a5ac60e73b92a2703b563", kill_on_drop: false }`
[INFO] [stdout] cfc5f202fb51cb671dc0ee77e2de0060f4ca2919c89a5ac60e73b92a2703b563
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 591b28a34941c4a217fc98f8f4eb9b50752523f21bf7e1a3db74104415d4be6d
[INFO] running `Command { std: "docker" "start" "-a" "591b28a34941c4a217fc98f8f4eb9b50752523f21bf7e1a3db74104415d4be6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]     Checking num-bigint v0.4.4
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]     Checking serde_json v1.0.114
[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 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 6.12s
[INFO] running `Command { std: "docker" "inspect" "591b28a34941c4a217fc98f8f4eb9b50752523f21bf7e1a3db74104415d4be6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "591b28a34941c4a217fc98f8f4eb9b50752523f21bf7e1a3db74104415d4be6d", kill_on_drop: false }`
[INFO] [stdout] 591b28a34941c4a217fc98f8f4eb9b50752523f21bf7e1a3db74104415d4be6d
