[INFO] cloning repository https://github.com/scottschroeder/rust-iterator-adapter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scottschroeder/rust-iterator-adapter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottschroeder%2Frust-iterator-adapter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottschroeder%2Frust-iterator-adapter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b30bd4c1a8ebae2205b3f343796cb768c6719eb6
[INFO] testing scottschroeder/rust-iterator-adapter against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscottschroeder%2Frust-iterator-adapter" "/workspace/builds/worker-118/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-118/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scottschroeder/rust-iterator-adapter 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/scottschroeder/rust-iterator-adapter
[INFO] finished tweaking git repo https://github.com/scottschroeder/rust-iterator-adapter
[INFO] tweaked toml for git repo https://github.com/scottschroeder/rust-iterator-adapter written to /workspace/builds/worker-118/source/Cargo.toml
[INFO] crate git repo https://github.com/scottschroeder/rust-iterator-adapter 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] 4c88b31a8348daade9cf0592f93fedcb3e9686238dfd5d3b62ce88f5a58e8035
[INFO] running `Command { std: "docker" "start" "-a" "4c88b31a8348daade9cf0592f93fedcb3e9686238dfd5d3b62ce88f5a58e8035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c88b31a8348daade9cf0592f93fedcb3e9686238dfd5d3b62ce88f5a58e8035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c88b31a8348daade9cf0592f93fedcb3e9686238dfd5d3b62ce88f5a58e8035", kill_on_drop: false }`
[INFO] [stdout] 4c88b31a8348daade9cf0592f93fedcb3e9686238dfd5d3b62ce88f5a58e8035
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] 3f8eaeb6887da4ff8f9a82e793725262ac5a232f9e1a961f2e801b8275d73009
[INFO] running `Command { std: "docker" "start" "-a" "3f8eaeb6887da4ff8f9a82e793725262ac5a232f9e1a961f2e801b8275d73009", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-iterator-adapter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     x: T,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     y: T,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `Command { std: "docker" "inspect" "3f8eaeb6887da4ff8f9a82e793725262ac5a232f9e1a961f2e801b8275d73009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f8eaeb6887da4ff8f9a82e793725262ac5a232f9e1a961f2e801b8275d73009", kill_on_drop: false }`
[INFO] [stdout] 3f8eaeb6887da4ff8f9a82e793725262ac5a232f9e1a961f2e801b8275d73009
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] 7f3babd61e75f09bc6893eb42a161c00ac2d069e9b9db14f081687f3fd32aa8d
[INFO] running `Command { std: "docker" "start" "-a" "7f3babd61e75f09bc6893eb42a161c00ac2d069e9b9db14f081687f3fd32aa8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-iterator-adapter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     x: T,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     y: T,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "7f3babd61e75f09bc6893eb42a161c00ac2d069e9b9db14f081687f3fd32aa8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f3babd61e75f09bc6893eb42a161c00ac2d069e9b9db14f081687f3fd32aa8d", kill_on_drop: false }`
[INFO] [stdout] 7f3babd61e75f09bc6893eb42a161c00ac2d069e9b9db14f081687f3fd32aa8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] 2a3d852d3a9cc9458935c0ce30202c4c70ee56ad1e756616578a6dbaf6bfb852
[INFO] running `Command { std: "docker" "start" "-a" "2a3d852d3a9cc9458935c0ce30202c4c70ee56ad1e756616578a6dbaf6bfb852", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     x: T,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     y: T,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-iterator-adapter` (bin "rust-iterator-adapter" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_iterator_adapter-4dcfda36c9049373)
[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 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2a3d852d3a9cc9458935c0ce30202c4c70ee56ad1e756616578a6dbaf6bfb852", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a3d852d3a9cc9458935c0ce30202c4c70ee56ad1e756616578a6dbaf6bfb852", kill_on_drop: false }`
[INFO] [stdout] 2a3d852d3a9cc9458935c0ce30202c4c70ee56ad1e756616578a6dbaf6bfb852