[INFO] updating cached repository hogehiko/rust-dentaku
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hogehiko/rust-dentaku
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hogehiko/rust-dentaku" "work/ex/beta-1.38-1/sources/1.37.0/gh/hogehiko/rust-dentaku"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hogehiko/rust-dentaku'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hogehiko/rust-dentaku" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hogehiko/rust-dentaku"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hogehiko/rust-dentaku'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 50db995acfe148535f835f0177d29c4708c76b11
[INFO] sha for GitHub repo hogehiko/rust-dentaku: 50db995acfe148535f835f0177d29c4708c76b11
[INFO] validating manifest of hogehiko/rust-dentaku on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hogehiko/rust-dentaku on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hogehiko/rust-dentaku
[INFO] finished frobbing hogehiko/rust-dentaku
[INFO] frobbed toml for hogehiko/rust-dentaku written to work/ex/beta-1.38-1/sources/1.37.0/gh/hogehiko/rust-dentaku/Cargo.toml
[INFO] started frobbing hogehiko/rust-dentaku
[INFO] finished frobbing hogehiko/rust-dentaku
[INFO] frobbed toml for hogehiko/rust-dentaku written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hogehiko/rust-dentaku/Cargo.toml
[INFO] crate hogehiko/rust-dentaku already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hogehiko/rust-dentaku against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hogehiko/rust-dentaku:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] dda11bd4a1ef77732d06abfd74bdbd32791fcc322028f0090d8a45a3d823dcf2
[INFO] running `"docker" "start" "-a" "dda11bd4a1ef77732d06abfd74bdbd32791fcc322028f0090d8a45a3d823dcf2"`
[INFO] [stderr]    Compiling rust-dentaku v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `bytes_read`
[INFO] [stderr]   --> src/main.rs:19:16
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Ok(bytes_read) => {
[INFO] [stderr]    |                ^^^^^^^^^^ help: consider prefixing with an underscore: `_bytes_read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         x => panic!("Undefined behavior {}",p.as_str())
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `"docker" "inspect" "dda11bd4a1ef77732d06abfd74bdbd32791fcc322028f0090d8a45a3d823dcf2"`
[INFO] running `"docker" "rm" "-f" "dda11bd4a1ef77732d06abfd74bdbd32791fcc322028f0090d8a45a3d823dcf2"`
[INFO] [stdout] dda11bd4a1ef77732d06abfd74bdbd32791fcc322028f0090d8a45a3d823dcf2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hogehiko/rust-dentaku:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9473dfb82d53590a78c32d7bf947ae33d144dd53a65efb4ce66fb2e3294e7856
[INFO] running `"docker" "start" "-a" "9473dfb82d53590a78c32d7bf947ae33d144dd53a65efb4ce66fb2e3294e7856"`
[INFO] [stderr]    Compiling rust-dentaku v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `bytes_read`
[INFO] [stderr]   --> src/main.rs:19:16
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Ok(bytes_read) => {
[INFO] [stderr]    |                ^^^^^^^^^^ help: consider prefixing with an underscore: `_bytes_read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 95 |         x => panic!("Undefined behavior {}",p.as_str())
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "9473dfb82d53590a78c32d7bf947ae33d144dd53a65efb4ce66fb2e3294e7856"`
[INFO] running `"docker" "rm" "-f" "9473dfb82d53590a78c32d7bf947ae33d144dd53a65efb4ce66fb2e3294e7856"`
[INFO] [stdout] 9473dfb82d53590a78c32d7bf947ae33d144dd53a65efb4ce66fb2e3294e7856
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hogehiko/rust-dentaku:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] a4b064588763a764f585cd44d3888fbfdfc76950fd04f2582aceedabfa4b4537
[INFO] running `"docker" "start" "-a" "a4b064588763a764f585cd44d3888fbfdfc76950fd04f2582aceedabfa4b4537"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_dentaku-d056f520dfbc37ad
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a4b064588763a764f585cd44d3888fbfdfc76950fd04f2582aceedabfa4b4537"`
[INFO] running `"docker" "rm" "-f" "a4b064588763a764f585cd44d3888fbfdfc76950fd04f2582aceedabfa4b4537"`
[INFO] [stdout] a4b064588763a764f585cd44d3888fbfdfc76950fd04f2582aceedabfa4b4537