[INFO] cloning repository https://github.com/tk04/kv_store
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tk04/kv_store" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftk04%2Fkv_store", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftk04%2Fkv_store'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5195189a8e32a471ec1803718079f5b5cc7d17b
[INFO] building tk04/kv_store 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%2Ftk04%2Fkv_store" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tk04/kv_store 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/tk04/kv_store
[INFO] finished tweaking git repo https://github.com/tk04/kv_store
[INFO] tweaked toml for git repo https://github.com/tk04/kv_store written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tk04/kv_store 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ff9db9954add76f6c05a387a8ec96a46b80719138d12abc5f4c9e78f725fe7aa
[INFO] running `Command { std: "docker" "start" "-a" "ff9db9954add76f6c05a387a8ec96a46b80719138d12abc5f4c9e78f725fe7aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff9db9954add76f6c05a387a8ec96a46b80719138d12abc5f4c9e78f725fe7aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff9db9954add76f6c05a387a8ec96a46b80719138d12abc5f4c9e78f725fe7aa", kill_on_drop: false }`
[INFO] [stdout] ff9db9954add76f6c05a387a8ec96a46b80719138d12abc5f4c9e78f725fe7aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fb09b3a8777ad3503f3bdb08753c565b5672ef94aa306cb6e0ab80fbac7b4ddb
[INFO] running `Command { std: "docker" "start" "-a" "fb09b3a8777ad3503f3bdb08753c565b5672ef94aa306cb6e0ab80fbac7b4ddb", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling kv_store v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send` is never used
[INFO] [stdout]  --> src/client.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn send() -> std::io::Result<()> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `client2` is never used
[INFO] [stdout]   --> src/client.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn client2() -> std::io::Result<()> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_reply` is never used
[INFO] [stdout]   --> src/client.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn read_reply(stream: TcpStream) -> (String, TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "fb09b3a8777ad3503f3bdb08753c565b5672ef94aa306cb6e0ab80fbac7b4ddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb09b3a8777ad3503f3bdb08753c565b5672ef94aa306cb6e0ab80fbac7b4ddb", kill_on_drop: false }`
[INFO] [stdout] fb09b3a8777ad3503f3bdb08753c565b5672ef94aa306cb6e0ab80fbac7b4ddb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2c5b337c362527c2fcf195513161a67543617aa776ca020702db7a087b12b0c1
[INFO] running `Command { std: "docker" "start" "-a" "2c5b337c362527c2fcf195513161a67543617aa776ca020702db7a087b12b0c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling kv_store v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send` is never used
[INFO] [stdout]  --> src/client.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn send() -> std::io::Result<()> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `client2` is never used
[INFO] [stdout]   --> src/client.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn client2() -> std::io::Result<()> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_reply` is never used
[INFO] [stdout]   --> src/client.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn read_reply(stream: TcpStream) -> (String, TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "2c5b337c362527c2fcf195513161a67543617aa776ca020702db7a087b12b0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c5b337c362527c2fcf195513161a67543617aa776ca020702db7a087b12b0c1", kill_on_drop: false }`
[INFO] [stdout] 2c5b337c362527c2fcf195513161a67543617aa776ca020702db7a087b12b0c1