[INFO] cloning repository https://github.com/xiyuanhuaigu/RustStudy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiyuanhuaigu/RustStudy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiyuanhuaigu%2FRustStudy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiyuanhuaigu%2FRustStudy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32e834a083698bb471a81d0d2035424b97a032e0
[INFO] checking xiyuanhuaigu/RustStudy against master#b44e14f762fd4062faeba97f8f2bc470298ec1ac for pr-135331
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiyuanhuaigu%2FRustStudy" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xiyuanhuaigu/RustStudy on toolchain b44e14f762fd4062faeba97f8f2bc470298ec1ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xiyuanhuaigu/RustStudy
[INFO] finished tweaking git repo https://github.com/xiyuanhuaigu/RustStudy
[INFO] tweaked toml for git repo https://github.com/xiyuanhuaigu/RustStudy written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xiyuanhuaigu/RustStudy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0b525d2b47638a3da87859d564f922b309f65c2800694126321f1e649a48b8b
[INFO] running `Command { std: "docker" "start" "-a" "b0b525d2b47638a3da87859d564f922b309f65c2800694126321f1e649a48b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0b525d2b47638a3da87859d564f922b309f65c2800694126321f1e649a48b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0b525d2b47638a3da87859d564f922b309f65c2800694126321f1e649a48b8b", kill_on_drop: false }`
[INFO] [stdout] b0b525d2b47638a3da87859d564f922b309f65c2800694126321f1e649a48b8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d7945bfcc7297ea3bef7323dde95c82b71516bd7c2317c265b5a54c6ee4b94e
[INFO] running `Command { std: "docker" "start" "-a" "7d7945bfcc7297ea3bef7323dde95c82b71516bd7c2317c265b5a54c6ee4b94e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "7d7945bfcc7297ea3bef7323dde95c82b71516bd7c2317c265b5a54c6ee4b94e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d7945bfcc7297ea3bef7323dde95c82b71516bd7c2317c265b5a54c6ee4b94e", kill_on_drop: false }`
[INFO] [stdout] 7d7945bfcc7297ea3bef7323dde95c82b71516bd7c2317c265b5a54c6ee4b94e