[INFO] updating cached repository https://github.com/solsensor/sol
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0acd33b49327a609fc74ba6081b142f3d5330432
[INFO] checking solsensor/sol against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsolsensor%2Fsol" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/solsensor/sol on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/solsensor/sol
[INFO] finished tweaking git repo https://github.com/solsensor/sol
[INFO] tweaked toml for git repo https://github.com/solsensor/sol written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/solsensor/sol already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d4c75be4a5ff1e557b2e0097ce6937cbceaf2c436b82f88b3f0a576118d3be7f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d4c75be4a5ff1e557b2e0097ce6937cbceaf2c436b82f88b3f0a576118d3be7f"`
[INFO] [stderr]    Compiling libc v0.2.54
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[INFO] [stderr]    Compiling devise_core v0.2.0
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[INFO] [stderr]    Compiling migrations_macros v1.4.0
[INFO] [stderr]     Checking diesel_migrations v1.4.0
[INFO] [stderr]     Checking sol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/tests.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     fs::remove_file("sol.sqlite");
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 46s
[INFO] running `"docker" "inspect" "d4c75be4a5ff1e557b2e0097ce6937cbceaf2c436b82f88b3f0a576118d3be7f"`
[INFO] running `"docker" "rm" "-f" "d4c75be4a5ff1e557b2e0097ce6937cbceaf2c436b82f88b3f0a576118d3be7f"`
[INFO] [stdout] d4c75be4a5ff1e557b2e0097ce6937cbceaf2c436b82f88b3f0a576118d3be7f