[INFO] updating cached repository Alexander-Hjelm/construct.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Alexander-Hjelm/construct.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Alexander-Hjelm/construct.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/Alexander-Hjelm/construct.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Alexander-Hjelm/construct.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Alexander-Hjelm/construct.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alexander-Hjelm/construct.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alexander-Hjelm/construct.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c7c157987a15daef5f9082f7ec48275d276b811f
[INFO] sha for GitHub repo Alexander-Hjelm/construct.rs: c7c157987a15daef5f9082f7ec48275d276b811f
[INFO] validating manifest of Alexander-Hjelm/construct.rs 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 Alexander-Hjelm/construct.rs 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 Alexander-Hjelm/construct.rs
[INFO] finished frobbing Alexander-Hjelm/construct.rs
[INFO] frobbed toml for Alexander-Hjelm/construct.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/Alexander-Hjelm/construct.rs/Cargo.toml
[INFO] started frobbing Alexander-Hjelm/construct.rs
[INFO] finished frobbing Alexander-Hjelm/construct.rs
[INFO] frobbed toml for Alexander-Hjelm/construct.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alexander-Hjelm/construct.rs/Cargo.toml
[INFO] crate Alexander-Hjelm/construct.rs 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Alexander-Hjelm/construct.rs against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alexander-Hjelm/construct.rs:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 947f92d866946e71d51b5982827b4505236cf0a1d586233b22cd86981b863748
[INFO] running `"docker" "start" "-a" "947f92d866946e71d51b5982827b4505236cf0a1d586233b22cd86981b863748"`
[INFO] [stderr]    Compiling serde_json v1.0.32
[INFO] [stderr]    Compiling syn v0.15.9
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]    Compiling construct v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `bracket_count` is never read
[INFO] [stderr]    --> construct.rs:351:13
[INFO] [stderr]     |
[INFO] [stderr] 351 |     let mut bracket_count = 0;
[INFO] [stderr]     |             ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> construct.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let mut src_file = File::open(path_str).unwrap();
[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 `subblocks2D` should have a snake case name
[INFO] [stderr]    --> construct.rs:320:13
[INFO] [stderr]     |
[INFO] [stderr] 320 |         let subblocks2D = block.blocks.unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `subblocks2_d`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.60s
[INFO] running `"docker" "inspect" "947f92d866946e71d51b5982827b4505236cf0a1d586233b22cd86981b863748"`
[INFO] running `"docker" "rm" "-f" "947f92d866946e71d51b5982827b4505236cf0a1d586233b22cd86981b863748"`
[INFO] [stdout] 947f92d866946e71d51b5982827b4505236cf0a1d586233b22cd86981b863748
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alexander-Hjelm/construct.rs:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] e59901f1f5be018f743fd46be529f21ee4356442b9f41a623e88c23f7b0f7684
[INFO] running `"docker" "start" "-a" "e59901f1f5be018f743fd46be529f21ee4356442b9f41a623e88c23f7b0f7684"`
[INFO] [stderr]    Compiling construct v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `bracket_count` is never read
[INFO] [stderr]    --> construct.rs:351:13
[INFO] [stderr]     |
[INFO] [stderr] 351 |     let mut bracket_count = 0;
[INFO] [stderr]     |             ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> construct.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let mut src_file = File::open(path_str).unwrap();
[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 `subblocks2D` should have a snake case name
[INFO] [stderr]    --> construct.rs:320:13
[INFO] [stderr]     |
[INFO] [stderr] 320 |         let subblocks2D = block.blocks.unwrap();
[INFO] [stderr]     |             ^^^^^^^^^^^ help: convert the identifier to snake case: `subblocks2_d`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "e59901f1f5be018f743fd46be529f21ee4356442b9f41a623e88c23f7b0f7684"`
[INFO] running `"docker" "rm" "-f" "e59901f1f5be018f743fd46be529f21ee4356442b9f41a623e88c23f7b0f7684"`
[INFO] [stdout] e59901f1f5be018f743fd46be529f21ee4356442b9f41a623e88c23f7b0f7684
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alexander-Hjelm/construct.rs:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 73b4dd6da6247539d37f2b021e53ef92048cbf66a30e332bf9b8cc1437df4911
[INFO] running `"docker" "start" "-a" "73b4dd6da6247539d37f2b021e53ef92048cbf66a30e332bf9b8cc1437df4911"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/construct-da9df681dfa28651
[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" "73b4dd6da6247539d37f2b021e53ef92048cbf66a30e332bf9b8cc1437df4911"`
[INFO] running `"docker" "rm" "-f" "73b4dd6da6247539d37f2b021e53ef92048cbf66a30e332bf9b8cc1437df4911"`
[INFO] [stdout] 73b4dd6da6247539d37f2b021e53ef92048cbf66a30e332bf9b8cc1437df4911