[INFO] updating cached repository https://github.com/zhangsoledad/lmdb_test
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8269d7b73a989da8ccdcbebb734cd51f372b037f
[INFO] testing zhangsoledad/lmdb_test against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangsoledad%2Flmdb_test" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zhangsoledad/lmdb_test on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/zhangsoledad/lmdb_test
[INFO] finished tweaking git repo https://github.com/zhangsoledad/lmdb_test
[INFO] tweaked toml for git repo https://github.com/zhangsoledad/lmdb_test written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/zhangsoledad/lmdb_test already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] f0209162a40eff7da8797a318fa268672425a11cc652960b41061d3ed843ac37
[INFO] running `"docker" "start" "-a" "f0209162a40eff7da8797a318fa268672425a11cc652960b41061d3ed843ac37"`
[INFO] [stderr]    Compiling libc v0.2.30
[INFO] [stderr]    Compiling gcc v0.3.53
[INFO] [stderr]    Compiling scopeguard v0.3.2
[INFO] [stderr]    Compiling either v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling futures v0.1.15
[INFO] [stderr]    Compiling serde v1.0.11
[INFO] [stderr]    Compiling serde_derive v1.0.11
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling num_cpus v1.6.2
[INFO] [stderr]    Compiling lmdb-sys v0.7.1
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling lmdb v0.7.1
[INFO] [stderr]    Compiling bincode v0.8.0
[INFO] [stderr]    Compiling lmdb_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Cursor`
[INFO] [stderr]  --> src/lmdb.rs:3:14
[INFO] [stderr]   |
[INFO] [stderr] 3 | use libmdb::{Cursor, Database, DatabaseFlags, Environment, Transaction, WriteFlags};
[INFO] [stderr]   |              ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rayon::prelude`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use rayon::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     db.clear();
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     height
[INFO] [stderr] 23 | |         .iter()
[INFO] [stderr] 24 | |         .map(|height| { db.save_height(*height); })
[INFO] [stderr] 25 | |         .collect::<Vec<()>>();
[INFO] [stderr]    | |______________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:24:25
[INFO] [stderr]    |
[INFO] [stderr] 24 |         .map(|height| { db.save_height(*height); })
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: constant `height_key` should have an upper case name
[INFO] [stderr]  --> src/lmdb.rs:6:7
[INFO] [stderr]   |
[INFO] [stderr] 6 | const height_key: [u8; 1] = [104];
[INFO] [stderr]   |       ^^^^^^^^^^ help: convert the identifier to upper case: `HEIGHT_KEY`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `head_key` should have an upper case name
[INFO] [stderr]  --> src/lmdb.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 | const head_key: [u8; 1] = [105];
[INFO] [stderr]   |       ^^^^^^^^ help: convert the identifier to upper case: `HEAD_KEY`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `tail_key` should have an upper case name
[INFO] [stderr]  --> src/lmdb.rs:8:7
[INFO] [stderr]   |
[INFO] [stderr] 8 | const tail_key: [u8; 1] = [116];
[INFO] [stderr]   |       ^^^^^^^^ help: convert the identifier to upper case: `TAIL_KEY`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.61s
[INFO] running `"docker" "inspect" "f0209162a40eff7da8797a318fa268672425a11cc652960b41061d3ed843ac37"`
[INFO] running `"docker" "rm" "-f" "f0209162a40eff7da8797a318fa268672425a11cc652960b41061d3ed843ac37"`
[INFO] [stdout] f0209162a40eff7da8797a318fa268672425a11cc652960b41061d3ed843ac37
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8663ec73bc521cce4b48c993a6a391475a4558e24a44aeda7b19afe9cb984d2a
[INFO] running `"docker" "start" "-a" "8663ec73bc521cce4b48c993a6a391475a4558e24a44aeda7b19afe9cb984d2a"`
[INFO] [stderr]    Compiling lmdb_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Cursor`
[INFO] [stderr]  --> src/lmdb.rs:3:14
[INFO] [stderr]   |
[INFO] [stderr] 3 | use libmdb::{Cursor, Database, DatabaseFlags, Environment, Transaction, WriteFlags};
[INFO] [stderr]   |              ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rayon::prelude`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use rayon::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     db.clear();
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     height
[INFO] [stderr] 23 | |         .iter()
[INFO] [stderr] 24 | |         .map(|height| { db.save_height(*height); })
[INFO] [stderr] 25 | |         .collect::<Vec<()>>();
[INFO] [stderr]    | |______________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:24:25
[INFO] [stderr]    |
[INFO] [stderr] 24 |         .map(|height| { db.save_height(*height); })
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: constant `height_key` should have an upper case name
[INFO] [stderr]  --> src/lmdb.rs:6:7
[INFO] [stderr]   |
[INFO] [stderr] 6 | const height_key: [u8; 1] = [104];
[INFO] [stderr]   |       ^^^^^^^^^^ help: convert the identifier to upper case: `HEIGHT_KEY`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `head_key` should have an upper case name
[INFO] [stderr]  --> src/lmdb.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 | const head_key: [u8; 1] = [105];
[INFO] [stderr]   |       ^^^^^^^^ help: convert the identifier to upper case: `HEAD_KEY`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `tail_key` should have an upper case name
[INFO] [stderr]  --> src/lmdb.rs:8:7
[INFO] [stderr]   |
[INFO] [stderr] 8 | const tail_key: [u8; 1] = [116];
[INFO] [stderr]   |       ^^^^^^^^ help: convert the identifier to upper case: `TAIL_KEY`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "8663ec73bc521cce4b48c993a6a391475a4558e24a44aeda7b19afe9cb984d2a"`
[INFO] running `"docker" "rm" "-f" "8663ec73bc521cce4b48c993a6a391475a4558e24a44aeda7b19afe9cb984d2a"`
[INFO] [stdout] 8663ec73bc521cce4b48c993a6a391475a4558e24a44aeda7b19afe9cb984d2a
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] a60fbd1cdbd2058fdf3b9b53ad859ed097412bb772295f922501c8fa2fadf68a
[INFO] running `"docker" "start" "-a" "a60fbd1cdbd2058fdf3b9b53ad859ed097412bb772295f922501c8fa2fadf68a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lmdb_test-53c7fbdb2f3e184a
[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" "a60fbd1cdbd2058fdf3b9b53ad859ed097412bb772295f922501c8fa2fadf68a"`
[INFO] running `"docker" "rm" "-f" "a60fbd1cdbd2058fdf3b9b53ad859ed097412bb772295f922501c8fa2fadf68a"`
[INFO] [stdout] a60fbd1cdbd2058fdf3b9b53ad859ed097412bb772295f922501c8fa2fadf68a