[INFO] cloning repository https://github.com/zhunor/fkin-sweet-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhunor/fkin-sweet-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhunor%2Ffkin-sweet-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhunor%2Ffkin-sweet-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78194fc1acf562a1b508135f7c1356ccef265c5f
[INFO] building zhunor/fkin-sweet-rust 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%2Fzhunor%2Ffkin-sweet-rust" "/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/zhunor/fkin-sweet-rust 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/zhunor/fkin-sweet-rust
[INFO] finished tweaking git repo https://github.com/zhunor/fkin-sweet-rust
[INFO] tweaked toml for git repo https://github.com/zhunor/fkin-sweet-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zhunor/fkin-sweet-rust 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ferris-says v0.1.1
[INFO] [stderr]   Downloaded cc v1.0.32
[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] 43e6c83eacfd3180120c31b3faa1968a3b9a64c5a4325f245ded0e1e6ffa8fc3
[INFO] running `Command { std: "docker" "start" "-a" "43e6c83eacfd3180120c31b3faa1968a3b9a64c5a4325f245ded0e1e6ffa8fc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43e6c83eacfd3180120c31b3faa1968a3b9a64c5a4325f245ded0e1e6ffa8fc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43e6c83eacfd3180120c31b3faa1968a3b9a64c5a4325f245ded0e1e6ffa8fc3", kill_on_drop: false }`
[INFO] [stdout] 43e6c83eacfd3180120c31b3faa1968a3b9a64c5a4325f245ded0e1e6ffa8fc3
[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] 23d2c0ff7e3b4032094993a609a7e0265731bc7b5beca20ef8cb8c791f355401
[INFO] running `Command { std: "docker" "start" "-a" "23d2c0ff7e3b4032094993a609a7e0265731bc7b5beca20ef8cb8c791f355401", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling smallvec v0.4.5
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling ferris-says v0.1.1
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `my_vec2`
[INFO] [stdout]  --> src/ref_pointer.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 |   let my_vec2 = &my_vec;
[INFO] [stdout]   |       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_vec2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/printer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |   struct Person<'a> {
[INFO] [stdout]    |          ------ fields in this struct
[INFO] [stdout] 13 |     name: &'a str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     age: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/conditionals.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/loops.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Right` is never constructed
[INFO] [stdout]  --> src/enums.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Movement {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |   Right
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.48s
[INFO] running `Command { std: "docker" "inspect" "23d2c0ff7e3b4032094993a609a7e0265731bc7b5beca20ef8cb8c791f355401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23d2c0ff7e3b4032094993a609a7e0265731bc7b5beca20ef8cb8c791f355401", kill_on_drop: false }`
[INFO] [stdout] 23d2c0ff7e3b4032094993a609a7e0265731bc7b5beca20ef8cb8c791f355401
[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] 963f243a05da4087b7712c13e1dabba177b71ac615bae49fe524bbb060b598d6
[INFO] running `Command { std: "docker" "start" "-a" "963f243a05da4087b7712c13e1dabba177b71ac615bae49fe524bbb060b598d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `my_vec2`
[INFO] [stdout]  --> src/ref_pointer.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 |   let my_vec2 = &my_vec;
[INFO] [stdout]   |       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_vec2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/printer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |   struct Person<'a> {
[INFO] [stdout]    |          ------ fields in this struct
[INFO] [stdout] 13 |     name: &'a str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     age: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/conditionals.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/loops.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Right` is never constructed
[INFO] [stdout]  --> src/enums.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Movement {
[INFO] [stdout]   |      -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |   Right
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "963f243a05da4087b7712c13e1dabba177b71ac615bae49fe524bbb060b598d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "963f243a05da4087b7712c13e1dabba177b71ac615bae49fe524bbb060b598d6", kill_on_drop: false }`
[INFO] [stdout] 963f243a05da4087b7712c13e1dabba177b71ac615bae49fe524bbb060b598d6