[INFO] cloning repository https://github.com/banchen19/rust_plugin_manager
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/banchen19/rust_plugin_manager" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbanchen19%2Frust_plugin_manager", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbanchen19%2Frust_plugin_manager'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da8a8cb9c223f520a024baba423faa749182df6b
[INFO] building banchen19/rust_plugin_manager against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbanchen19%2Frust_plugin_manager" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/banchen19/rust_plugin_manager on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/banchen19/rust_plugin_manager
[INFO] finished tweaking git repo https://github.com/banchen19/rust_plugin_manager
[INFO] tweaked toml for git repo https://github.com/banchen19/rust_plugin_manager written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/banchen19/rust_plugin_manager 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libloader v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b22da9624c6b8f9e06cd4f0d0bf5cd166664a145bc9fc9486b18878bf9930d4
[INFO] running `Command { std: "docker" "start" "-a" "9b22da9624c6b8f9e06cd4f0d0bf5cd166664a145bc9fc9486b18878bf9930d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b22da9624c6b8f9e06cd4f0d0bf5cd166664a145bc9fc9486b18878bf9930d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b22da9624c6b8f9e06cd4f0d0bf5cd166664a145bc9fc9486b18878bf9930d4", kill_on_drop: false }`
[INFO] [stdout] 9b22da9624c6b8f9e06cd4f0d0bf5cd166664a145bc9fc9486b18878bf9930d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ec607cc10c31074729c74711b33930663fe48a43c79fee28f0e5a5aa1152b8b
[INFO] running `Command { std: "docker" "start" "-a" "7ec607cc10c31074729c74711b33930663fe48a43c79fee28f0e5a5aa1152b8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling libloader v0.1.4
[INFO] [stderr]    Compiling pmaapi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `set_name`, `set_version`, `set_author`, and `set_explain` are never used
[INFO] [stdout]   --> src/lib.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Plugin {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 36 |     /// set plugin name
[INFO] [stdout] 37 |     fn set_name(&mut self, name: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn set_version(&mut self, version: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn set_author(&mut self, author: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn set_explain(&mut self, explain: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UcenterResult` is never constructed
[INFO] [stdout]   --> src/lib.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub(crate) struct UcenterResult<T>(pub T);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "7ec607cc10c31074729c74711b33930663fe48a43c79fee28f0e5a5aa1152b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ec607cc10c31074729c74711b33930663fe48a43c79fee28f0e5a5aa1152b8b", kill_on_drop: false }`
[INFO] [stdout] 7ec607cc10c31074729c74711b33930663fe48a43c79fee28f0e5a5aa1152b8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ed1d990c9446cca3e39143e1c09d9dcfa6f640b8afa99afd83d1c88a3e335fb
[INFO] running `Command { std: "docker" "start" "-a" "7ed1d990c9446cca3e39143e1c09d9dcfa6f640b8afa99afd83d1c88a3e335fb", kill_on_drop: false }`
[INFO] [stdout] warning: methods `set_name`, `set_version`, `set_author`, and `set_explain` are never used
[INFO] [stdout]   --> src/lib.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Plugin {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 36 |     /// set plugin name
[INFO] [stdout] 37 |     fn set_name(&mut self, name: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn set_version(&mut self, version: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn set_author(&mut self, author: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn set_explain(&mut self, explain: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UcenterResult` is never constructed
[INFO] [stdout]   --> src/lib.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub(crate) struct UcenterResult<T>(pub T);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pmaapi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `set_name`, `set_version`, `set_author`, and `set_explain` are never used
[INFO] [stdout]   --> src/lib.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Plugin {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 36 |     /// set plugin name
[INFO] [stdout] 37 |     fn set_name(&mut self, name: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn set_version(&mut self, version: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn set_author(&mut self, author: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn set_explain(&mut self, explain: String) -> &Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UcenterResult` is never constructed
[INFO] [stdout]   --> src/lib.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub(crate) struct UcenterResult<T>(pub T);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "7ed1d990c9446cca3e39143e1c09d9dcfa6f640b8afa99afd83d1c88a3e335fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ed1d990c9446cca3e39143e1c09d9dcfa6f640b8afa99afd83d1c88a3e335fb", kill_on_drop: false }`
[INFO] [stdout] 7ed1d990c9446cca3e39143e1c09d9dcfa6f640b8afa99afd83d1c88a3e335fb