[INFO] cloning repository https://github.com/vivian/picoserve
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vivian/picoserve" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvivian%2Fpicoserve", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvivian%2Fpicoserve'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d69e6b3bbb044957afe9cec42799c8d2e30b2d69
[INFO] testing vivian/picoserve against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvivian%2Fpicoserve" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vivian/picoserve on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vivian/picoserve
[INFO] finished tweaking git repo https://github.com/vivian/picoserve
[INFO] tweaked toml for git repo https://github.com/vivian/picoserve written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/vivian/picoserve already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42a40202c82ff32fc750bd9b219c7b930db4338f622b10f81a802b72e604459d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "42a40202c82ff32fc750bd9b219c7b930db4338f622b10f81a802b72e604459d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42a40202c82ff32fc750bd9b219c7b930db4338f622b10f81a802b72e604459d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42a40202c82ff32fc750bd9b219c7b930db4338f622b10f81a802b72e604459d", kill_on_drop: false }`
[INFO] [stdout] 42a40202c82ff32fc750bd9b219c7b930db4338f622b10f81a802b72e604459d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fdbabec2cba4af2fdadcba3e01f25d0538316a5a8da79a1acc16b215a8e66f9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6fdbabec2cba4af2fdadcba3e01f25d0538316a5a8da79a1acc16b215a8e66f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling picoserve v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `disjoint_capture_drop_reorder`
[INFO] [stdout]   --> src/main.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     disjoint_capture_drop_reorder,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `source`
[INFO] [stdout]    --> src/main.rs:126:26
[INFO] [stdout]     |
[INFO] [stdout] 126 |     LoadingEnvironment { source: EnvironmentError },
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/main.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     unused,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     = note: `#[deny(dead_code)]` implied by `#[deny(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `source`
[INFO] [stdout]    --> src/main.rs:127:18
[INFO] [stdout]     |
[INFO] [stdout] 127 |     TcpBinding { source: IoError },
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `picoserve` due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6fdbabec2cba4af2fdadcba3e01f25d0538316a5a8da79a1acc16b215a8e66f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fdbabec2cba4af2fdadcba3e01f25d0538316a5a8da79a1acc16b215a8e66f9", kill_on_drop: false }`
[INFO] [stdout] 6fdbabec2cba4af2fdadcba3e01f25d0538316a5a8da79a1acc16b215a8e66f9