[INFO] fetching crate c3_sdk 0.1.0...
[INFO] checking c3_sdk-0.1.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate c3_sdk 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate c3_sdk 0.1.0 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 c3_sdk 0.1.0
[INFO] finished tweaking crates.io crate c3_sdk 0.1.0
[INFO] tweaked toml for crates.io crate c3_sdk 0.1.0 written to /workspace/builds/worker-2-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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mac v0.0.2
[INFO] [stderr]   Downloaded buffer v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 05a6e40d7c9bc6492a4cb1e8d09eefbd309190d71df34bf49729cf584325c7e5
[INFO] running `Command { std: "docker" "start" "-a" "05a6e40d7c9bc6492a4cb1e8d09eefbd309190d71df34bf49729cf584325c7e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05a6e40d7c9bc6492a4cb1e8d09eefbd309190d71df34bf49729cf584325c7e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a6e40d7c9bc6492a4cb1e8d09eefbd309190d71df34bf49729cf584325c7e5", kill_on_drop: false }`
[INFO] [stdout] 05a6e40d7c9bc6492a4cb1e8d09eefbd309190d71df34bf49729cf584325c7e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] bfa99f082cfcf5c116ba725f6dbbd49c24d43935a963419b04708e4d40b04d40
[INFO] running `Command { std: "docker" "start" "-a" "bfa99f082cfcf5c116ba725f6dbbd49c24d43935a963419b04708e4d40b04d40", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking mac v0.0.2
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking buffer v0.1.9
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking serde_json v1.0.114
[INFO] [stderr]     Checking c3_sdk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> tests/hexutil.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     use std::string::String;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/std/src/prelude/mod.rs:105:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `Command { std: "docker" "inspect" "bfa99f082cfcf5c116ba725f6dbbd49c24d43935a963419b04708e4d40b04d40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa99f082cfcf5c116ba725f6dbbd49c24d43935a963419b04708e4d40b04d40", kill_on_drop: false }`
[INFO] [stdout] bfa99f082cfcf5c116ba725f6dbbd49c24d43935a963419b04708e4d40b04d40
