[INFO] cloning repository https://github.com/yaowenqiang/rust_boxes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yaowenqiang/rust_boxes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyaowenqiang%2Frust_boxes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyaowenqiang%2Frust_boxes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b4a93aef9bd50b9dce0c65a7e54eff47240defb
[INFO] testing yaowenqiang/rust_boxes against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyaowenqiang%2Frust_boxes" "/workspace/builds/worker-49/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-49/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yaowenqiang/rust_boxes on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yaowenqiang/rust_boxes
[INFO] finished tweaking git repo https://github.com/yaowenqiang/rust_boxes
[INFO] tweaked toml for git repo https://github.com/yaowenqiang/rust_boxes written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] crate git repo https://github.com/yaowenqiang/rust_boxes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10eb972ee4e6cd29656b4476b566caee577e4e59eb61beccaa67d2a007f1a168
[INFO] running `Command { std: "docker" "start" "-a" "10eb972ee4e6cd29656b4476b566caee577e4e59eb61beccaa67d2a007f1a168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10eb972ee4e6cd29656b4476b566caee577e4e59eb61beccaa67d2a007f1a168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10eb972ee4e6cd29656b4476b566caee577e4e59eb61beccaa67d2a007f1a168", kill_on_drop: false }`
[INFO] [stdout] 10eb972ee4e6cd29656b4476b566caee577e4e59eb61beccaa67d2a007f1a168
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 526b04dc205c4c43f62e5385735fe23f097254065be7ee60f58f2b1258c59b63
[INFO] running `Command { std: "docker" "start" "-a" "526b04dc205c4c43f62e5385735fe23f097254065be7ee60f58f2b1258c59b63", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling boxes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let s2 : String = "hello".into();
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_issue`
[INFO] [stdout]   --> src/main.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn read_issue() -> Result<String, Box<dyn Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "526b04dc205c4c43f62e5385735fe23f097254065be7ee60f58f2b1258c59b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "526b04dc205c4c43f62e5385735fe23f097254065be7ee60f58f2b1258c59b63", kill_on_drop: false }`
[INFO] [stdout] 526b04dc205c4c43f62e5385735fe23f097254065be7ee60f58f2b1258c59b63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 799b33ad39e26794d00267e47bb53df037292ef02e09e0b6c3fafcab4c2dc053
[INFO] running `Command { std: "docker" "start" "-a" "799b33ad39e26794d00267e47bb53df037292ef02e09e0b6c3fafcab4c2dc053", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling boxes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let s2 : String = "hello".into();
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_issue`
[INFO] [stdout]   --> src/main.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn read_issue() -> Result<String, Box<dyn Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 21.32s
[INFO] running `Command { std: "docker" "inspect" "799b33ad39e26794d00267e47bb53df037292ef02e09e0b6c3fafcab4c2dc053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "799b33ad39e26794d00267e47bb53df037292ef02e09e0b6c3fafcab4c2dc053", kill_on_drop: false }`
[INFO] [stdout] 799b33ad39e26794d00267e47bb53df037292ef02e09e0b6c3fafcab4c2dc053
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fe504927d9d4d4c5953e618513ee1e4e2adedcee28ae4ddf9d6f9d771b404aa5
[INFO] running `Command { std: "docker" "start" "-a" "fe504927d9d4d4c5953e618513ee1e4e2adedcee28ae4ddf9d6f9d771b404aa5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `s2`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let s2 : String = "hello".into();
[INFO] [stderr]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_issue`
[INFO] [stderr]   --> src/main.rs:38:4
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn read_issue() -> Result<String, Box<dyn Error>> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `boxes` (bin "boxes" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/boxes-fe7a8a4c2c89604d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fe504927d9d4d4c5953e618513ee1e4e2adedcee28ae4ddf9d6f9d771b404aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe504927d9d4d4c5953e618513ee1e4e2adedcee28ae4ddf9d6f9d771b404aa5", kill_on_drop: false }`
[INFO] [stdout] fe504927d9d4d4c5953e618513ee1e4e2adedcee28ae4ddf9d6f9d771b404aa5