[INFO] fetching crate tmux_interface 0.1.0...
[INFO] checking tmux_interface-0.1.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate tmux_interface 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate tmux_interface 0.1.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tmux_interface 0.1.0
[INFO] finished tweaking crates.io crate tmux_interface 0.1.0
[INFO] tweaked toml for crates.io crate tmux_interface 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fd8cf5e2ce86985f7b83663eb1d1630680d8a56514810b7a2a8512ee0e40c770
[INFO] running `Command { std: "docker" "start" "-a" "fd8cf5e2ce86985f7b83663eb1d1630680d8a56514810b7a2a8512ee0e40c770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd8cf5e2ce86985f7b83663eb1d1630680d8a56514810b7a2a8512ee0e40c770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd8cf5e2ce86985f7b83663eb1d1630680d8a56514810b7a2a8512ee0e40c770", kill_on_drop: false }`
[INFO] [stdout] fd8cf5e2ce86985f7b83663eb1d1630680d8a56514810b7a2a8512ee0e40c770
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 45dbfb7659e0acd8811f7b11db496e05657fd1cf864bbf47059fb1584227ee70
[INFO] running `Command { std: "docker" "start" "-a" "45dbfb7659e0acd8811f7b11db496e05657fd1cf864bbf47059fb1584227ee70", 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]     Checking tmux_interface v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `session_bitflag`
[INFO] [stdout]    --> src/variables/session/session_tests.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     let session_bitflag = SESSION_CREATED;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_session_bitflag`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.61s
[INFO] running `Command { std: "docker" "inspect" "45dbfb7659e0acd8811f7b11db496e05657fd1cf864bbf47059fb1584227ee70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45dbfb7659e0acd8811f7b11db496e05657fd1cf864bbf47059fb1584227ee70", kill_on_drop: false }`
[INFO] [stdout] 45dbfb7659e0acd8811f7b11db496e05657fd1cf864bbf47059fb1584227ee70