Dec 19 15:52:16.150 INFO checking icew4ll/rsub against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:52:16.150 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/icew4ll/rsub:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:52:16.528 INFO [stdout] aecc7446f5dc15555a442b64fa6b18c687a86592d0307a424044f64bfb2d07a3
Dec 19 15:52:16.530 INFO running `"docker" "start" "-a" "aecc7446f5dc15555a442b64fa6b18c687a86592d0307a424044f64bfb2d07a3"`
Dec 19 15:52:18.352 INFO [stderr]    Compiling cmake v0.1.30
Dec 19 15:52:18.352 INFO [stderr]    Compiling libz-sys v1.0.18
Dec 19 15:52:18.361 INFO [stderr]     Checking termios v0.2.2
Dec 19 15:52:18.368 INFO [stderr]     Checking subprocess v0.1.12
Dec 19 15:52:18.385 INFO [stderr]     Checking nix v0.9.0
Dec 19 15:52:18.388 INFO [stderr]     Checking clicolors-control v0.2.0
Dec 19 15:52:18.389 INFO [stderr]     Checking csv-core v0.1.4
Dec 19 15:52:18.389 INFO [stderr]     Checking parking_lot v0.5.4
Dec 19 15:52:19.376 INFO [stderr]     Checking regex v0.2.10
Dec 19 15:52:20.068 INFO [stderr]     Checking shared_child v0.3.2
Dec 19 15:52:20.155 INFO [stderr]     Checking error-chain v0.10.0
Dec 19 15:52:20.422 INFO [stderr]     Checking csv v1.0.0-beta.5
Dec 19 15:52:23.148 INFO [stderr]     Checking ssl-expiration v0.1.1
Dec 19 15:52:23.646 INFO [stderr]    Compiling libssh2-sys v0.2.6
Dec 19 15:52:28.121 INFO [stderr]     Checking console v0.6.1
Dec 19 15:52:33.593 INFO [stderr]     Checking os_pipe v0.6.0
Dec 19 15:52:34.174 INFO [stderr]     Checking duct v0.10.0
Dec 19 15:52:40.855 INFO [stderr]     Checking ssh2 v0.3.2
Dec 19 15:52:41.612 INFO [stderr]     Checking rsub v0.1.0 (/opt/crater/workdir)
Dec 19 15:52:42.180 INFO [stderr] warning: unused variable: `v2`
Dec 19 15:52:42.180 INFO [stderr]   --> src/main.rs:59:9
Dec 19 15:52:42.180 INFO [stderr]    |
Dec 19 15:52:42.180 INFO [stderr] 59 |     let v2 = s.lines()
Dec 19 15:52:42.180 INFO [stderr]    |         ^^ help: consider using `_v2` instead
Dec 19 15:52:42.180 INFO [stderr]    |
Dec 19 15:52:42.180 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 15:52:42.180 INFO [stderr] 
Dec 19 15:52:42.349 INFO [stderr] warning: unused variable: `v2`
Dec 19 15:52:42.349 INFO [stderr]   --> src/main.rs:59:9
Dec 19 15:52:42.349 INFO [stderr]    |
Dec 19 15:52:42.349 INFO [stderr] 59 |     let v2 = s.lines()
Dec 19 15:52:42.349 INFO [stderr]    |         ^^ help: consider using `_v2` instead
Dec 19 15:52:42.349 INFO [stderr]    |
Dec 19 15:52:42.349 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 15:52:42.349 INFO [stderr] 
Dec 19 15:52:42.425 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.33s
Dec 19 15:52:43.294 INFO running `"docker" "inspect" "aecc7446f5dc15555a442b64fa6b18c687a86592d0307a424044f64bfb2d07a3"`
Dec 19 15:52:43.668 INFO running `"docker" "rm" "-f" "aecc7446f5dc15555a442b64fa6b18c687a86592d0307a424044f64bfb2d07a3"`
Dec 19 15:52:43.968 INFO [stdout] aecc7446f5dc15555a442b64fa6b18c687a86592d0307a424044f64bfb2d07a3