[INFO] cloning repository https://github.com/libook/guess-numbers-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/libook/guess-numbers-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flibook%2Fguess-numbers-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flibook%2Fguess-numbers-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8056af6d8d315eba296aacffea1e846ccdf3d528
[INFO] checking libook/guess-numbers-rust against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flibook%2Fguess-numbers-rust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/libook/guess-numbers-rust on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/libook/guess-numbers-rust
[INFO] finished tweaking git repo https://github.com/libook/guess-numbers-rust
[INFO] tweaked toml for git repo https://github.com/libook/guess-numbers-rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/libook/guess-numbers-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a410a40e8728b1c9cffa88c069a42affeba64b011771f3a0e9a81e8c673cd06c
[INFO] running `Command { std: "docker" "start" "-a" "a410a40e8728b1c9cffa88c069a42affeba64b011771f3a0e9a81e8c673cd06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a410a40e8728b1c9cffa88c069a42affeba64b011771f3a0e9a81e8c673cd06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a410a40e8728b1c9cffa88c069a42affeba64b011771f3a0e9a81e8c673cd06c", kill_on_drop: false }`
[INFO] [stdout] a410a40e8728b1c9cffa88c069a42affeba64b011771f3a0e9a81e8c673cd06c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d74ee35c60645daadc1586a998d03f2fbdd4668202877a7c7e62ebc5d3594cf
[INFO] running `Command { std: "docker" "start" "-a" "6d74ee35c60645daadc1586a998d03f2fbdd4668202877a7c7e62ebc5d3594cf", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking regex v1.3.0
[INFO] [stderr]     Checking guess-numbers-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "6d74ee35c60645daadc1586a998d03f2fbdd4668202877a7c7e62ebc5d3594cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d74ee35c60645daadc1586a998d03f2fbdd4668202877a7c7e62ebc5d3594cf", kill_on_drop: false }`
[INFO] [stdout] 6d74ee35c60645daadc1586a998d03f2fbdd4668202877a7c7e62ebc5d3594cf