[INFO] fetching crate exemplify-lib 0.1.6...
[INFO] checking exemplify-lib-0.1.6 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate exemplify-lib 0.1.6 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate exemplify-lib 0.1.6
[INFO] finished tweaking crates.io crate exemplify-lib 0.1.6
[INFO] tweaked toml for crates.io crate exemplify-lib 0.1.6 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate exemplify-lib 0.1.6 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.45.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b87e5c9deb461d6314d6c0edd132b908ad42eb9b2e3581ec1789ab67dc4c2f96
[INFO] running `Command { std: "docker" "start" "-a" "b87e5c9deb461d6314d6c0edd132b908ad42eb9b2e3581ec1789ab67dc4c2f96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b87e5c9deb461d6314d6c0edd132b908ad42eb9b2e3581ec1789ab67dc4c2f96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b87e5c9deb461d6314d6c0edd132b908ad42eb9b2e3581ec1789ab67dc4c2f96", kill_on_drop: false }`
[INFO] [stdout] b87e5c9deb461d6314d6c0edd132b908ad42eb9b2e3581ec1789ab67dc4c2f96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be91b7bfb2df1b44c9a4ca269d04d89fb3221fb9965669efed991b2d6b39e990
[INFO] running `Command { std: "docker" "start" "-a" "be91b7bfb2df1b44c9a4ca269d04d89fb3221fb9965669efed991b2d6b39e990", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking stringreader v0.1.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking exemplify-lib v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.19s
[INFO] running `Command { std: "docker" "inspect" "be91b7bfb2df1b44c9a4ca269d04d89fb3221fb9965669efed991b2d6b39e990", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be91b7bfb2df1b44c9a4ca269d04d89fb3221fb9965669efed991b2d6b39e990", kill_on_drop: false }`
[INFO] [stdout] be91b7bfb2df1b44c9a4ca269d04d89fb3221fb9965669efed991b2d6b39e990