[INFO] updating cached repository ralexstokes/ubiquity
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ralexstokes/ubiquity
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ralexstokes/ubiquity" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/ralexstokes/ubiquity"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/ralexstokes/ubiquity'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ralexstokes/ubiquity" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ralexstokes/ubiquity"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ralexstokes/ubiquity'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cddebfd68a3a5246de3f10f630faa8fb68d0f1b7
[INFO] sha for GitHub repo ralexstokes/ubiquity: cddebfd68a3a5246de3f10f630faa8fb68d0f1b7
[INFO] validating manifest of ralexstokes/ubiquity on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ralexstokes/ubiquity on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ralexstokes/ubiquity
[INFO] finished frobbing ralexstokes/ubiquity
[INFO] frobbed toml for ralexstokes/ubiquity written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/ralexstokes/ubiquity/Cargo.toml
[INFO] started frobbing ralexstokes/ubiquity
[INFO] finished frobbing ralexstokes/ubiquity
[INFO] frobbed toml for ralexstokes/ubiquity written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ralexstokes/ubiquity/Cargo.toml
[INFO] crate ralexstokes/ubiquity already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ralexstokes/ubiquity against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-4/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ralexstokes/ubiquity:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5eff3e2d159f84bdf6d888696f4a3a1e76f7c7e336e714851cd2a3b5b5aed285
[INFO] running `"docker" "start" "-a" "5eff3e2d159f84bdf6d888696f4a3a1e76f7c7e336e714851cd2a3b5b5aed285"`
[INFO] [stderr]    Compiling rand_os v0.1.0
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking memchr v2.1.2
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking nix v0.7.0
[INFO] [stderr]     Checking smallstr v0.1.0
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]    Compiling rand v0.6.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling terminfo v0.6.1
[INFO] [stderr]     Checking mortal v0.1.5
[INFO] [stderr]     Checking linefeed v0.5.4
[INFO] [stderr]     Checking ubiquity v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]    --> src/evaluator/evaluator.rs:417:24
[INFO] [stderr]     |
[INFO] [stderr] 417 | fn lookup(coll: &Expr, key: &Expr, not_found: &Expr) -> Result<Expr> {
[INFO] [stderr]     |                        ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]    --> src/evaluator/evaluator.rs:417:24
[INFO] [stderr]     |
[INFO] [stderr] 417 | fn lookup(coll: &Expr, key: &Expr, not_found: &Expr) -> Result<Expr> {
[INFO] [stderr]     |                        ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.04s
[INFO] running `"docker" "inspect" "5eff3e2d159f84bdf6d888696f4a3a1e76f7c7e336e714851cd2a3b5b5aed285"`
[INFO] running `"docker" "rm" "-f" "5eff3e2d159f84bdf6d888696f4a3a1e76f7c7e336e714851cd2a3b5b5aed285"`
[INFO] [stdout] 5eff3e2d159f84bdf6d888696f4a3a1e76f7c7e336e714851cd2a3b5b5aed285