[INFO] cloning repository Menkir/resa [INFO] running `"git" "clone" "--bare" "git://github.com/Menkir/resa.git" "work/cache/sources/gh/Menkir/resa"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/Menkir/resa'... [INFO] running `"git" "clone" "work/cache/sources/gh/Menkir/resa" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Menkir/resa"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Menkir/resa'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Menkir/resa" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Menkir/resa"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Menkir/resa'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 8371423fe0e2301e15f134c91079a2c0b12e950b [INFO] sha for GitHub repo Menkir/resa: 8371423fe0e2301e15f134c91079a2c0b12e950b [INFO] validating manifest of Menkir/resa on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Menkir/resa on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Menkir/resa [INFO] finished frobbing Menkir/resa [INFO] frobbed toml for Menkir/resa written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Menkir/resa/Cargo.toml [INFO] started frobbing Menkir/resa [INFO] finished frobbing Menkir/resa [INFO] frobbed toml for Menkir/resa written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Menkir/resa/Cargo.toml [INFO] crate Menkir/resa already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded extractor v0.1.0 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking Menkir/resa against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-4/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Menkir/resa:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] a1040f044b21285a0b9554b4d0d1420aab52bb3d67d7d938d8d779a41087a8a9 [INFO] running `"docker" "start" "-a" "a1040f044b21285a0b9554b4d0d1420aab52bb3d67d7d938d8d779a41087a8a9"` [INFO] [stderr] Compiling openssl-sys v0.9.30 [INFO] [stderr] Checking bytes v0.4.7 [INFO] [stderr] Checking mio v0.6.14 [INFO] [stderr] Checking aho-corasick v0.6.5 [INFO] [stderr] Checking clap v2.27.1 [INFO] [stderr] Checking tokio-threadpool v0.1.3 [INFO] [stderr] Checking serde_urlencoded v0.5.1 [INFO] [stderr] Compiling serde_derive v1.0.55 [INFO] [stderr] Checking regex v1.0.1 [INFO] [stderr] Checking mime_guess v2.0.0-alpha.4 [INFO] [stderr] Checking tokio-io v0.1.6 [INFO] [stderr] Checking tokio-reactor v0.1.1 [INFO] [stderr] Checking tokio-fs v0.1.0 [INFO] [stderr] Compiling openssl v0.9.24 [INFO] [stderr] Checking tokio-tcp v0.1.0 [INFO] [stderr] Checking tokio-udp v0.1.0 [INFO] [stderr] Checking extractor v0.1.0 [INFO] [stderr] Checking tokio v0.1.6 [INFO] [stderr] Checking native-tls v0.1.5 [INFO] [stderr] Checking tokio-core v0.1.17 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking tokio-tls v0.1.4 [INFO] [stderr] Checking hyper v0.11.26 [INFO] [stderr] Checking hyper-tls v0.1.3 [INFO] [stderr] Checking reqwest v0.8.5 [INFO] [stderr] Checking resa v0.1.1 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin.rs:63:13 [INFO] [stderr] | [INFO] [stderr] 63 | let mut temp = StackOverflow::search(&q); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin.rs:85:13 [INFO] [stderr] | [INFO] [stderr] 85 | for mut s in so.clone().into_iter() { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin.rs:63:13 [INFO] [stderr] | [INFO] [stderr] 63 | let mut temp = StackOverflow::search(&q); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin.rs:85:13 [INFO] [stderr] | [INFO] [stderr] 85 | for mut s in so.clone().into_iter() { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 38.99s [INFO] running `"docker" "inspect" "a1040f044b21285a0b9554b4d0d1420aab52bb3d67d7d938d8d779a41087a8a9"` [INFO] running `"docker" "rm" "-f" "a1040f044b21285a0b9554b4d0d1420aab52bb3d67d7d938d8d779a41087a8a9"` [INFO] [stdout] a1040f044b21285a0b9554b4d0d1420aab52bb3d67d7d938d8d779a41087a8a9