[INFO] updating cached repository anxiousmodernman/sled-dump
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/anxiousmodernman/sled-dump
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/anxiousmodernman/sled-dump" "work/ex/beta-1.38-1/sources/1.37.0/gh/anxiousmodernman/sled-dump"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/anxiousmodernman/sled-dump'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/anxiousmodernman/sled-dump" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/anxiousmodernman/sled-dump"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/anxiousmodernman/sled-dump'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7fc31ed9de3b62ceff14b3d68e70b8bf79d9d97f
[INFO] sha for GitHub repo anxiousmodernman/sled-dump: 7fc31ed9de3b62ceff14b3d68e70b8bf79d9d97f
[INFO] validating manifest of anxiousmodernman/sled-dump 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 anxiousmodernman/sled-dump 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 anxiousmodernman/sled-dump
[INFO] finished frobbing anxiousmodernman/sled-dump
[INFO] frobbed toml for anxiousmodernman/sled-dump written to work/ex/beta-1.38-1/sources/1.37.0/gh/anxiousmodernman/sled-dump/Cargo.toml
[INFO] started frobbing anxiousmodernman/sled-dump
[INFO] finished frobbing anxiousmodernman/sled-dump
[INFO] frobbed toml for anxiousmodernman/sled-dump written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/anxiousmodernman/sled-dump/Cargo.toml
[INFO] crate anxiousmodernman/sled-dump 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 anxiousmodernman/sled-dump 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/anxiousmodernman/sled-dump:/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] d1463fb2acd67e61e94198bdcb7c289d9c943325ddf4c67eb1b17bfd7935e7e3
[INFO] running `"docker" "start" "-a" "d1463fb2acd67e61e94198bdcb7c289d9c943325ddf4c67eb1b17bfd7935e7e3"`
[INFO] [stderr]    Compiling serde v1.0.88
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling sled_sync v0.2.2
[INFO] [stderr]    Compiling sled_sync v0.3.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling historian v3.0.11
[INFO] [stderr]    Compiling pagetable v0.1.5
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling bincode v1.1.2
[INFO] [stderr]    Compiling pagecache v0.10.2
[INFO] [stderr]    Compiling sled v0.18.1
[INFO] [stderr]    Compiling sled-dump v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::path`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut args: Vec<String> = env::args().skip(1).collect();
[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/main.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut config = sled::ConfigBuilder::new().path(&args[0]);
[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/main.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let mut tree = sled::Db::start(config.build()).expect("could not open database");
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.56s
[INFO] running `"docker" "inspect" "d1463fb2acd67e61e94198bdcb7c289d9c943325ddf4c67eb1b17bfd7935e7e3"`
[INFO] running `"docker" "rm" "-f" "d1463fb2acd67e61e94198bdcb7c289d9c943325ddf4c67eb1b17bfd7935e7e3"`
[INFO] [stdout] d1463fb2acd67e61e94198bdcb7c289d9c943325ddf4c67eb1b17bfd7935e7e3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/anxiousmodernman/sled-dump:/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] 5c130b642b428f60204833e09eab773f33aa981bfbea00ffc224c7c0d7cd8948
[INFO] running `"docker" "start" "-a" "5c130b642b428f60204833e09eab773f33aa981bfbea00ffc224c7c0d7cd8948"`
[INFO] [stderr]    Compiling sled-dump v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::path`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::Write;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut args: Vec<String> = env::args().skip(1).collect();
[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/main.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut config = sled::ConfigBuilder::new().path(&args[0]);
[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/main.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let mut tree = sled::Db::start(config.build()).expect("could not open database");
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "5c130b642b428f60204833e09eab773f33aa981bfbea00ffc224c7c0d7cd8948"`
[INFO] running `"docker" "rm" "-f" "5c130b642b428f60204833e09eab773f33aa981bfbea00ffc224c7c0d7cd8948"`
[INFO] [stdout] 5c130b642b428f60204833e09eab773f33aa981bfbea00ffc224c7c0d7cd8948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/anxiousmodernman/sled-dump:/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] 56652b63681a4b8cfecd43c567f0326603d42fd83f70f638a5df3f84ec279f11
[INFO] running `"docker" "start" "-a" "56652b63681a4b8cfecd43c567f0326603d42fd83f70f638a5df3f84ec279f11"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sled_dump-76e8d12d54ac5dd5
[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" "56652b63681a4b8cfecd43c567f0326603d42fd83f70f638a5df3f84ec279f11"`
[INFO] running `"docker" "rm" "-f" "56652b63681a4b8cfecd43c567f0326603d42fd83f70f638a5df3f84ec279f11"`
[INFO] [stdout] 56652b63681a4b8cfecd43c567f0326603d42fd83f70f638a5df3f84ec279f11