[INFO] cloning repository https://github.com/zten/eclecticdb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zten/eclecticdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzten%2Feclecticdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzten%2Feclecticdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd648055d5e78837bc70b01c60fdf4a2d0cbb5de
[INFO] testing zten/eclecticdb against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzten%2Feclecticdb" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zten/eclecticdb on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zten/eclecticdb
[INFO] finished tweaking git repo https://github.com/zten/eclecticdb
[INFO] tweaked toml for git repo https://github.com/zten/eclecticdb written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/zten/eclecticdb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93ff76940e4df47d89173acaea5c2d6bb66457b232cda18945990d0d780bca24
[INFO] running `Command { std: "docker" "start" "-a" "93ff76940e4df47d89173acaea5c2d6bb66457b232cda18945990d0d780bca24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93ff76940e4df47d89173acaea5c2d6bb66457b232cda18945990d0d780bca24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ff76940e4df47d89173acaea5c2d6bb66457b232cda18945990d0d780bca24", kill_on_drop: false }`
[INFO] [stdout] 93ff76940e4df47d89173acaea5c2d6bb66457b232cda18945990d0d780bca24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3df5aa0041880008d0b4a8dd42f6808d88fe09dd4fddd2ba8f68aac970cc4a27
[INFO] running `Command { std: "docker" "start" "-a" "3df5aa0041880008d0b4a8dd42f6808d88fe09dd4fddd2ba8f68aac970cc4a27", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling eclecticdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> src/main.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt, fs};
[INFO] [stdout]   |                ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::{File, OpenOptions};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `table`
[INFO] [stdout]    --> src/main.rs:130:16
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn write_table(table: &Table) {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_table`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut bytes = vec![1, 2, 3, 4];
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BlockHeader`
[INFO] [stdout]  --> src/main.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct BlockHeader {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BlockInfo`
[INFO] [stdout]   --> src/main.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct BlockInfo {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Block`
[INFO] [stdout]   --> src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Block<T> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `null`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     null: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bytes`
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     bytes: Vec<u8>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_bytes`
[INFO] [stdout]   --> src/main.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn write_bytes() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_table`
[INFO] [stdout]    --> src/main.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn write_table(table: &Table) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     writer.write(&bytes);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.48s
[INFO] running `Command { std: "docker" "inspect" "3df5aa0041880008d0b4a8dd42f6808d88fe09dd4fddd2ba8f68aac970cc4a27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3df5aa0041880008d0b4a8dd42f6808d88fe09dd4fddd2ba8f68aac970cc4a27", kill_on_drop: false }`
[INFO] [stdout] 3df5aa0041880008d0b4a8dd42f6808d88fe09dd4fddd2ba8f68aac970cc4a27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f4fd628a6b1054d5bab6ac3b69ad32143ace50d3f6bbd7d1398679f2a1ddd0f
[INFO] running `Command { std: "docker" "start" "-a" "9f4fd628a6b1054d5bab6ac3b69ad32143ace50d3f6bbd7d1398679f2a1ddd0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling eclecticdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> src/main.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt, fs};
[INFO] [stdout]   |                ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::{File, OpenOptions};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `table`
[INFO] [stdout]    --> src/main.rs:130:16
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn write_table(table: &Table) {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_table`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut bytes = vec![1, 2, 3, 4];
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BlockHeader`
[INFO] [stdout]  --> src/main.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct BlockHeader {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BlockInfo`
[INFO] [stdout]   --> src/main.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct BlockInfo {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Block`
[INFO] [stdout]   --> src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Block<T> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `null`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     null: bool,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bytes`
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     bytes: Vec<u8>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_bytes`
[INFO] [stdout]   --> src/main.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn write_bytes() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_table`
[INFO] [stdout]    --> src/main.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn write_table(table: &Table) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     writer.write(&bytes);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "9f4fd628a6b1054d5bab6ac3b69ad32143ace50d3f6bbd7d1398679f2a1ddd0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f4fd628a6b1054d5bab6ac3b69ad32143ace50d3f6bbd7d1398679f2a1ddd0f", kill_on_drop: false }`
[INFO] [stdout] 9f4fd628a6b1054d5bab6ac3b69ad32143ace50d3f6bbd7d1398679f2a1ddd0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1f05d0a01e5b085bf90523af5c5a4e188dfed1331031273676863b64d8f87b42
[INFO] running `Command { std: "docker" "start" "-a" "1f05d0a01e5b085bf90523af5c5a4e188dfed1331031273676863b64d8f87b42", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `fs`
[INFO] [stderr]  --> src/main.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{fmt, fs};
[INFO] [stderr]   |                ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `File`
[INFO] [stderr]  --> src/main.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::{File, OpenOptions};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `table`
[INFO] [stderr]    --> src/main.rs:130:16
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn write_table(table: &Table) {
[INFO] [stderr]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_table`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let mut bytes = vec![1, 2, 3, 4];
[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: struct is never constructed: `BlockHeader`
[INFO] [stderr]  --> src/main.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct BlockHeader {
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `BlockInfo`
[INFO] [stderr]   --> src/main.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct BlockInfo {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Block`
[INFO] [stderr]   --> src/main.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | struct Block<T> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `null`
[INFO] [stderr]   --> src/main.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     null: bool,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `bytes`
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     bytes: Vec<u8>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_bytes`
[INFO] [stderr]   --> src/main.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn write_bytes() {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_table`
[INFO] [stderr]    --> src/main.rs:130:4
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn write_table(table: &Table) {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     writer.write(&bytes);
[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: `eclecticdb` (bin "eclecticdb" test) generated 12 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/eclecticdb-9924369e2ea00890)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1f05d0a01e5b085bf90523af5c5a4e188dfed1331031273676863b64d8f87b42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f05d0a01e5b085bf90523af5c5a4e188dfed1331031273676863b64d8f87b42", kill_on_drop: false }`
[INFO] [stdout] 1f05d0a01e5b085bf90523af5c5a4e188dfed1331031273676863b64d8f87b42