Dec 12 19:32:13.884 INFO testing zhangsoledad/lmdb_test against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 12 19:32:13.884 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 19:32:14.455 INFO [stdout] 4b5067c8abfb8f9d97ecf20afeecbfccf9d3f4cf5937182399b98dfe9873846b
Dec 12 19:32:14.457 INFO running `"docker" "start" "-a" "4b5067c8abfb8f9d97ecf20afeecbfccf9d3f4cf5937182399b98dfe9873846b"`
Dec 12 19:32:16.710 INFO [stderr] usermod: no changes
Dec 12 19:32:16.843 INFO [stderr]    Compiling gcc v0.3.53
Dec 12 19:32:16.843 INFO [stderr]    Compiling either v1.1.0
Dec 12 19:32:16.847 INFO [stderr]    Compiling libc v0.2.30
Dec 12 19:32:16.867 INFO [stderr]    Compiling rayon-core v1.2.1
Dec 12 19:32:16.872 INFO [stderr]    Compiling scopeguard v0.3.2
Dec 12 19:32:16.879 INFO [stderr]    Compiling futures v0.1.15
Dec 12 19:32:16.879 INFO [stderr]    Compiling lazy_static v0.2.8
Dec 12 19:32:16.879 INFO [stderr]    Compiling serde v1.0.11
Dec 12 19:32:17.687 INFO [stderr]    Compiling serde_derive_internals v0.15.1
Dec 12 19:32:18.425 INFO [stderr]    Compiling coco v0.1.1
Dec 12 19:32:21.011 INFO [stderr]    Compiling num_cpus v1.6.2
Dec 12 19:32:21.012 INFO [stderr]    Compiling rand v0.3.16
Dec 12 19:32:27.761 INFO [stderr]    Compiling serde_derive v1.0.11
Dec 12 19:32:27.876 INFO [stderr]    Compiling lmdb-sys v0.7.1
Dec 12 19:32:29.820 INFO [stderr]    Compiling tempdir v0.3.5
Dec 12 19:32:33.628 INFO [stderr]    Compiling lmdb v0.7.1
Dec 12 19:32:37.144 INFO [stderr]    Compiling rayon v0.8.2
Dec 12 19:32:45.494 INFO [stderr]    Compiling bincode v0.8.0
Dec 12 19:32:46.407 INFO [stderr]    Compiling lmdb_test v0.1.0 (/source)
Dec 12 19:32:46.663 INFO [stderr] warning: unused import: `Cursor`
Dec 12 19:32:46.663 INFO [stderr]  --> src/lmdb.rs:3:14
Dec 12 19:32:46.663 INFO [stderr]   |
Dec 12 19:32:46.663 INFO [stderr] 3 | use libmdb::{Cursor, Database, DatabaseFlags, Environment, Transaction, WriteFlags};
Dec 12 19:32:46.663 INFO [stderr]   |              ^^^^^^
Dec 12 19:32:46.663 INFO [stderr]   |
Dec 12 19:32:46.663 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 19:32:46.663 INFO [stderr] 
Dec 12 19:32:46.663 INFO [stderr] warning: unused import: `rayon::prelude`
Dec 12 19:32:46.663 INFO [stderr]   --> src/main.rs:11:5
Dec 12 19:32:46.663 INFO [stderr]    |
Dec 12 19:32:46.663 INFO [stderr] 11 | use rayon::prelude::*;
Dec 12 19:32:46.663 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 12 19:32:46.663 INFO [stderr] 
Dec 12 19:32:46.686 INFO [stderr] warning: constant `height_key` should have an upper case name such as `HEIGHT_KEY`
Dec 12 19:32:46.686 INFO [stderr]  --> src/lmdb.rs:6:1
Dec 12 19:32:46.686 INFO [stderr]   |
Dec 12 19:32:46.686 INFO [stderr] 6 | const height_key: [u8; 1] = [104];
Dec 12 19:32:46.686 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:32:46.686 INFO [stderr]   |
Dec 12 19:32:46.686 INFO [stderr]   = note: #[warn(non_upper_case_globals)] on by default
Dec 12 19:32:46.686 INFO [stderr] 
Dec 12 19:32:46.686 INFO [stderr] warning: constant `head_key` should have an upper case name such as `HEAD_KEY`
Dec 12 19:32:46.686 INFO [stderr]  --> src/lmdb.rs:7:1
Dec 12 19:32:46.686 INFO [stderr]   |
Dec 12 19:32:46.686 INFO [stderr] 7 | const head_key: [u8; 1] = [105];
Dec 12 19:32:46.686 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:32:46.686 INFO [stderr] 
Dec 12 19:32:46.686 INFO [stderr] warning: constant `tail_key` should have an upper case name such as `TAIL_KEY`
Dec 12 19:32:46.686 INFO [stderr]  --> src/lmdb.rs:8:1
Dec 12 19:32:46.686 INFO [stderr]   |
Dec 12 19:32:46.686 INFO [stderr] 8 | const tail_key: [u8; 1] = [116];
Dec 12 19:32:46.687 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:32:46.687 INFO [stderr] 
Dec 12 19:32:46.687 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:32:46.687 INFO [stderr]   --> src/main.rs:18:5
Dec 12 19:32:46.687 INFO [stderr]    |
Dec 12 19:32:46.687 INFO [stderr] 18 |     db.clear();
Dec 12 19:32:46.687 INFO [stderr]    |     ^^^^^^^^^^^
Dec 12 19:32:46.687 INFO [stderr]    |
Dec 12 19:32:46.687 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 19:32:46.687 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:32:46.687 INFO [stderr] 
Dec 12 19:32:46.687 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 12 19:32:46.687 INFO [stderr]   --> src/main.rs:22:5
Dec 12 19:32:46.687 INFO [stderr]    |
Dec 12 19:32:46.687 INFO [stderr] 22 | /     height
Dec 12 19:32:46.687 INFO [stderr] 23 | |         .iter()
Dec 12 19:32:46.687 INFO [stderr] 24 | |         .map(|height| { db.save_height(*height); })
Dec 12 19:32:46.688 INFO [stderr] 25 | |         .collect::<Vec<()>>();
Dec 12 19:32:46.688 INFO [stderr]    | |______________________________^
Dec 12 19:32:46.688 INFO [stderr]    |
Dec 12 19:32:46.688 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 12 19:32:46.688 INFO [stderr] 
Dec 12 19:32:46.688 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:32:46.688 INFO [stderr]   --> src/main.rs:24:25
Dec 12 19:32:46.688 INFO [stderr]    |
Dec 12 19:32:46.688 INFO [stderr] 24 |         .map(|height| { db.save_height(*height); })
Dec 12 19:32:46.688 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:32:46.688 INFO [stderr]    |
Dec 12 19:32:46.688 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:32:46.688 INFO [stderr] 
Dec 12 19:32:47.553 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.81s
Dec 12 19:32:47.559 INFO [stderr] su: No module specific data is present
Dec 12 19:32:48.779 INFO running `"docker" "inspect" "4b5067c8abfb8f9d97ecf20afeecbfccf9d3f4cf5937182399b98dfe9873846b"`
Dec 12 19:32:49.085 INFO running `"docker" "rm" "-f" "4b5067c8abfb8f9d97ecf20afeecbfccf9d3f4cf5937182399b98dfe9873846b"`
Dec 12 19:32:49.491 INFO [stdout] 4b5067c8abfb8f9d97ecf20afeecbfccf9d3f4cf5937182399b98dfe9873846b
Dec 12 19:32:49.494 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 19:32:49.902 INFO [stdout] 6ee45b9b35306dd8da2693ee950e412869739e57f4da2735d4b0b2d6c701d036
Dec 12 19:32:49.904 INFO running `"docker" "start" "-a" "6ee45b9b35306dd8da2693ee950e412869739e57f4da2735d4b0b2d6c701d036"`
Dec 12 19:32:51.614 INFO [stderr] usermod: no changes
Dec 12 19:32:51.723 INFO [stderr]    Compiling lmdb_test v0.1.0 (/source)
Dec 12 19:32:51.963 INFO [stderr] warning: unused import: `Cursor`
Dec 12 19:32:51.963 INFO [stderr]  --> src/lmdb.rs:3:14
Dec 12 19:32:51.963 INFO [stderr]   |
Dec 12 19:32:51.963 INFO [stderr] 3 | use libmdb::{Cursor, Database, DatabaseFlags, Environment, Transaction, WriteFlags};
Dec 12 19:32:51.963 INFO [stderr]   |              ^^^^^^
Dec 12 19:32:51.963 INFO [stderr]   |
Dec 12 19:32:51.963 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 19:32:51.963 INFO [stderr] 
Dec 12 19:32:51.963 INFO [stderr] warning: unused import: `rayon::prelude`
Dec 12 19:32:51.963 INFO [stderr]   --> src/main.rs:11:5
Dec 12 19:32:51.963 INFO [stderr]    |
Dec 12 19:32:51.963 INFO [stderr] 11 | use rayon::prelude::*;
Dec 12 19:32:51.963 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 12 19:32:51.963 INFO [stderr] 
Dec 12 19:32:51.988 INFO [stderr] warning: constant `height_key` should have an upper case name such as `HEIGHT_KEY`
Dec 12 19:32:51.988 INFO [stderr]  --> src/lmdb.rs:6:1
Dec 12 19:32:51.988 INFO [stderr]   |
Dec 12 19:32:51.988 INFO [stderr] 6 | const height_key: [u8; 1] = [104];
Dec 12 19:32:51.988 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:32:51.988 INFO [stderr]   |
Dec 12 19:32:51.989 INFO [stderr]   = note: #[warn(non_upper_case_globals)] on by default
Dec 12 19:32:51.989 INFO [stderr] 
Dec 12 19:32:51.989 INFO [stderr] warning: constant `head_key` should have an upper case name such as `HEAD_KEY`
Dec 12 19:32:51.989 INFO [stderr]  --> src/lmdb.rs:7:1
Dec 12 19:32:51.989 INFO [stderr]   |
Dec 12 19:32:51.989 INFO [stderr] 7 | const head_key: [u8; 1] = [105];
Dec 12 19:32:51.989 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:32:51.989 INFO [stderr] 
Dec 12 19:32:51.989 INFO [stderr] warning: constant `tail_key` should have an upper case name such as `TAIL_KEY`
Dec 12 19:32:51.989 INFO [stderr]  --> src/lmdb.rs:8:1
Dec 12 19:32:51.989 INFO [stderr]   |
Dec 12 19:32:51.989 INFO [stderr] 8 | const tail_key: [u8; 1] = [116];
Dec 12 19:32:51.989 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:32:51.989 INFO [stderr] 
Dec 12 19:32:51.989 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:32:51.989 INFO [stderr]   --> src/main.rs:18:5
Dec 12 19:32:51.989 INFO [stderr]    |
Dec 12 19:32:51.989 INFO [stderr] 18 |     db.clear();
Dec 12 19:32:51.989 INFO [stderr]    |     ^^^^^^^^^^^
Dec 12 19:32:51.990 INFO [stderr]    |
Dec 12 19:32:51.990 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 19:32:51.990 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:32:51.990 INFO [stderr] 
Dec 12 19:32:51.990 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 12 19:32:51.990 INFO [stderr]   --> src/main.rs:22:5
Dec 12 19:32:51.990 INFO [stderr]    |
Dec 12 19:32:51.990 INFO [stderr] 22 | /     height
Dec 12 19:32:51.990 INFO [stderr] 23 | |         .iter()
Dec 12 19:32:51.990 INFO [stderr] 24 | |         .map(|height| { db.save_height(*height); })
Dec 12 19:32:51.990 INFO [stderr] 25 | |         .collect::<Vec<()>>();
Dec 12 19:32:51.990 INFO [stderr]    | |______________________________^
Dec 12 19:32:51.990 INFO [stderr]    |
Dec 12 19:32:51.990 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 12 19:32:51.990 INFO [stderr] 
Dec 12 19:32:51.990 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 19:32:51.990 INFO [stderr]   --> src/main.rs:24:25
Dec 12 19:32:51.990 INFO [stderr]    |
Dec 12 19:32:51.990 INFO [stderr] 24 |         .map(|height| { db.save_height(*height); })
Dec 12 19:32:51.990 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 19:32:51.990 INFO [stderr]    |
Dec 12 19:32:51.990 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 19:32:51.990 INFO [stderr] 
Dec 12 19:32:52.471 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Dec 12 19:32:52.471 INFO [stderr] su: No module specific data is present
Dec 12 19:32:53.436 INFO running `"docker" "inspect" "6ee45b9b35306dd8da2693ee950e412869739e57f4da2735d4b0b2d6c701d036"`
Dec 12 19:32:53.863 INFO running `"docker" "rm" "-f" "6ee45b9b35306dd8da2693ee950e412869739e57f4da2735d4b0b2d6c701d036"`
Dec 12 19:32:54.267 INFO [stdout] 6ee45b9b35306dd8da2693ee950e412869739e57f4da2735d4b0b2d6c701d036
Dec 12 19:32:54.275 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 19:32:54.764 INFO [stdout] 3f1d5d3cd7b56f2467b109985198fe5f3ad60a35e1cbfc68b19c8828050790e0
Dec 12 19:32:54.766 INFO running `"docker" "start" "-a" "3f1d5d3cd7b56f2467b109985198fe5f3ad60a35e1cbfc68b19c8828050790e0"`
Dec 12 19:32:56.222 INFO [stderr] usermod: no changes
Dec 12 19:32:56.325 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
Dec 12 19:32:56.338 INFO [stderr]      Running /target/debug/deps/lmdb_test-5680a9a9ace2aa2b
Dec 12 19:32:56.347 INFO [stderr] su: No module specific data is present
Dec 12 19:32:56.347 INFO [stdout] 
Dec 12 19:32:56.347 INFO [stdout] running 0 tests
Dec 12 19:32:56.347 INFO [stdout] 
Dec 12 19:32:56.347 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 19:32:56.347 INFO [stdout] 
Dec 12 19:32:57.239 INFO running `"docker" "inspect" "3f1d5d3cd7b56f2467b109985198fe5f3ad60a35e1cbfc68b19c8828050790e0"`
Dec 12 19:32:57.635 INFO running `"docker" "rm" "-f" "3f1d5d3cd7b56f2467b109985198fe5f3ad60a35e1cbfc68b19c8828050790e0"`
Dec 12 19:32:57.971 INFO [stdout] 3f1d5d3cd7b56f2467b109985198fe5f3ad60a35e1cbfc68b19c8828050790e0