[INFO] cloning repository https://github.com/lduchosal/xlsc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lduchosal/xlsc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flduchosal%2Fxlsc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flduchosal%2Fxlsc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8af6e52e2ebec0f7b25233111b65f6aed7fc6afa
[INFO] checking lduchosal/xlsc against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flduchosal%2Fxlsc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lduchosal/xlsc on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lduchosal/xlsc
[INFO] finished tweaking git repo https://github.com/lduchosal/xlsc
[INFO] tweaked toml for git repo https://github.com/lduchosal/xlsc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/lduchosal/xlsc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28c9ed0182ee04907e2de5059ab816b2750cbf81f68f7c55654d989c3dd01f00
[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" "28c9ed0182ee04907e2de5059ab816b2750cbf81f68f7c55654d989c3dd01f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28c9ed0182ee04907e2de5059ab816b2750cbf81f68f7c55654d989c3dd01f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28c9ed0182ee04907e2de5059ab816b2750cbf81f68f7c55654d989c3dd01f00", kill_on_drop: false }`
[INFO] [stdout] 28c9ed0182ee04907e2de5059ab816b2750cbf81f68f7c55654d989c3dd01f00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10749b091ab7c983c0cb1b3a9c3812a88dab3f93d26bdba0419a532457011ebf
[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" "10749b091ab7c983c0cb1b3a9c3812a88dab3f93d26bdba0419a532457011ebf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling byteorder v1.3.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking base64 v0.10.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.4.5
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking xlsc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `encoded`
[INFO] [stdout]    --> src/main.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let encoded = base64::encode(&result);
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoded`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encoded`
[INFO] [stdout]    --> src/main.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let encoded = base64::encode(&result);
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoded`
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.35s
[INFO] running `Command { std: "docker" "inspect" "10749b091ab7c983c0cb1b3a9c3812a88dab3f93d26bdba0419a532457011ebf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10749b091ab7c983c0cb1b3a9c3812a88dab3f93d26bdba0419a532457011ebf", kill_on_drop: false }`
[INFO] [stdout] 10749b091ab7c983c0cb1b3a9c3812a88dab3f93d26bdba0419a532457011ebf