[INFO] fetching crate cmd_cache 0.1.1...
[INFO] building cmd_cache-0.1.1 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate cmd_cache 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate cmd_cache 0.1.1 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cmd_cache 0.1.1
[INFO] finished tweaking crates.io crate cmd_cache 0.1.1
[INFO] tweaked toml for crates.io crate cmd_cache 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate cmd_cache 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c23b5add1541ce39b47b49b8c63054dd6611188a3a544381b157a5dd2d255dbe
[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" "c23b5add1541ce39b47b49b8c63054dd6611188a3a544381b157a5dd2d255dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c23b5add1541ce39b47b49b8c63054dd6611188a3a544381b157a5dd2d255dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c23b5add1541ce39b47b49b8c63054dd6611188a3a544381b157a5dd2d255dbe", kill_on_drop: false }`
[INFO] [stdout] c23b5add1541ce39b47b49b8c63054dd6611188a3a544381b157a5dd2d255dbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83a0e2ed9872bc3cec749284b0e1df1bcccf08e63689821d4e1541a09e555582
[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" "83a0e2ed9872bc3cec749284b0e1df1bcccf08e63689821d4e1541a09e555582", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling cmd_cache v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.31s
[INFO] running `Command { std: "docker" "inspect" "83a0e2ed9872bc3cec749284b0e1df1bcccf08e63689821d4e1541a09e555582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83a0e2ed9872bc3cec749284b0e1df1bcccf08e63689821d4e1541a09e555582", kill_on_drop: false }`
[INFO] [stdout] 83a0e2ed9872bc3cec749284b0e1df1bcccf08e63689821d4e1541a09e555582
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbc388cbca162e0802a0414419f3bd0e51ee7b675cb62e47d94fd0d5cfdf1dcb
[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" "fbc388cbca162e0802a0414419f3bd0e51ee7b675cb62e47d94fd0d5cfdf1dcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cmd_cache v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `clean_env`
[INFO] [stdout]    --> src/main.rs:154:8
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn clean_env(key : &str) -> Option <String>{
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `restore_env`
[INFO] [stdout]    --> src/main.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn restore_env(key : &str, value :Option <String>) {
[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 0.97s
[INFO] running `Command { std: "docker" "inspect" "fbc388cbca162e0802a0414419f3bd0e51ee7b675cb62e47d94fd0d5cfdf1dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbc388cbca162e0802a0414419f3bd0e51ee7b675cb62e47d94fd0d5cfdf1dcb", kill_on_drop: false }`
[INFO] [stdout] fbc388cbca162e0802a0414419f3bd0e51ee7b675cb62e47d94fd0d5cfdf1dcb
