[INFO] updating cached repository skade/htwg-scratchpad
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/skade/htwg-scratchpad
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/skade/htwg-scratchpad" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/skade/htwg-scratchpad"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/skade/htwg-scratchpad'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/skade/htwg-scratchpad" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/skade/htwg-scratchpad"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/skade/htwg-scratchpad'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e1144441bb210af318d7e23caf586938df7ce40a
[INFO] sha for GitHub repo skade/htwg-scratchpad: e1144441bb210af318d7e23caf586938df7ce40a
[INFO] validating manifest of skade/htwg-scratchpad on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of skade/htwg-scratchpad on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing skade/htwg-scratchpad
[INFO] finished frobbing skade/htwg-scratchpad
[INFO] frobbed toml for skade/htwg-scratchpad written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/skade/htwg-scratchpad/Cargo.toml
[INFO] started frobbing skade/htwg-scratchpad
[INFO] finished frobbing skade/htwg-scratchpad
[INFO] frobbed toml for skade/htwg-scratchpad written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/skade/htwg-scratchpad/Cargo.toml
[INFO] crate skade/htwg-scratchpad already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking skade/htwg-scratchpad against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/skade/htwg-scratchpad:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7d435a10640e811746fe880538cef0e1ff2c337ef6566c78f10c9bb6e03f5b3c
[INFO] running `"docker" "start" "-a" "7d435a10640e811746fe880538cef0e1ff2c337ef6566c78f10c9bb6e03f5b3c"`
[INFO] [stderr]     Checking iovec v0.1.0
[INFO] [stderr]     Checking num_cpus v1.4.0
[INFO] [stderr]     Checking net2 v0.2.29
[INFO] [stderr]     Checking tokio-timer v0.1.1
[INFO] [stderr]     Checking bytes v0.4.3
[INFO] [stderr]     Checking futures-cpupool v0.1.5
[INFO] [stderr]     Checking mio v0.6.7
[INFO] [stderr]     Checking tokio-io v0.1.1
[INFO] [stderr]     Checking tokio-core v0.1.7
[INFO] [stderr]     Checking htwg-scratchpad v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `pass`
[INFO] [stderr]   --> src/bin/select.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let pass = 900;
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_pass`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pass`
[INFO] [stderr]   --> src/bin/select.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let pass = 900;
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_pass`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/read_file.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     cpu_pool.spawn(read_file).wait();
[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] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/read_file.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     cpu_pool.spawn(read_file).wait();
[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 6.23s
[INFO] running `"docker" "inspect" "7d435a10640e811746fe880538cef0e1ff2c337ef6566c78f10c9bb6e03f5b3c"`
[INFO] running `"docker" "rm" "-f" "7d435a10640e811746fe880538cef0e1ff2c337ef6566c78f10c9bb6e03f5b3c"`
[INFO] [stdout] 7d435a10640e811746fe880538cef0e1ff2c337ef6566c78f10c9bb6e03f5b3c