[INFO] updating cached repository TheNeikos/rustdock
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/TheNeikos/rustdock
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/TheNeikos/rustdock" "work/ex/beta-1.37-6/sources/1.36.0/gh/TheNeikos/rustdock"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/TheNeikos/rustdock'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/TheNeikos/rustdock" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/TheNeikos/rustdock"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/TheNeikos/rustdock'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bdcd606a19eac6a619d7c4aa7b9f829e545c9b9f
[INFO] sha for GitHub repo TheNeikos/rustdock: bdcd606a19eac6a619d7c4aa7b9f829e545c9b9f
[INFO] validating manifest of TheNeikos/rustdock on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of TheNeikos/rustdock on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing TheNeikos/rustdock
[INFO] finished frobbing TheNeikos/rustdock
[INFO] frobbed toml for TheNeikos/rustdock written to work/ex/beta-1.37-6/sources/1.36.0/gh/TheNeikos/rustdock/Cargo.toml
[INFO] started frobbing TheNeikos/rustdock
[INFO] finished frobbing TheNeikos/rustdock
[INFO] frobbed toml for TheNeikos/rustdock written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/TheNeikos/rustdock/Cargo.toml
[INFO] crate TheNeikos/rustdock already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing TheNeikos/rustdock against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/TheNeikos/rustdock:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] b8cb2dd5ed76da6b8bc62bff105233477418a11d745b4339ecc82bee7fe1fc09
[INFO] running `"docker" "start" "-a" "b8cb2dd5ed76da6b8bc62bff105233477418a11d745b4339ecc82bee7fe1fc09"`
[INFO] [stderr]    Compiling serde v1.0.69
[INFO] [stderr]    Compiling x11 v2.18.0
[INFO] [stderr]    Compiling aho-corasick v0.6.5
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.69
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling textwidth v1.1.0
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling rustdock v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Stdio` is imported redundantly
[INFO] [stderr]   --> src/main.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::process::{Command, Stdio};
[INFO] [stderr]    |                             ----- the item `Stdio` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 72 |         use std::process::Stdio;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elem`
[INFO] [stderr]    --> src/main.rs:175:18
[INFO] [stderr]     |
[INFO] [stderr] 175 |             for (elem, idx) in config.elements[last_index..].iter().zip(last_index..) {
[INFO] [stderr]     |                  ^^^^ help: consider prefixing with an underscore: `_elem`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.21s
[INFO] running `"docker" "inspect" "b8cb2dd5ed76da6b8bc62bff105233477418a11d745b4339ecc82bee7fe1fc09"`
[INFO] running `"docker" "rm" "-f" "b8cb2dd5ed76da6b8bc62bff105233477418a11d745b4339ecc82bee7fe1fc09"`
[INFO] [stdout] b8cb2dd5ed76da6b8bc62bff105233477418a11d745b4339ecc82bee7fe1fc09
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/TheNeikos/rustdock:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0fc7b19c7ab37af761c5ec30e698dba1a40bdb76580d2532c08f944784b1d5fa
[INFO] running `"docker" "start" "-a" "0fc7b19c7ab37af761c5ec30e698dba1a40bdb76580d2532c08f944784b1d5fa"`
[INFO] [stderr]    Compiling rustdock v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Stdio` is imported redundantly
[INFO] [stderr]   --> src/main.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::process::{Command, Stdio};
[INFO] [stderr]    |                             ----- the item `Stdio` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 72 |         use std::process::Stdio;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elem`
[INFO] [stderr]    --> src/main.rs:175:18
[INFO] [stderr]     |
[INFO] [stderr] 175 |             for (elem, idx) in config.elements[last_index..].iter().zip(last_index..) {
[INFO] [stderr]     |                  ^^^^ help: consider prefixing with an underscore: `_elem`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "0fc7b19c7ab37af761c5ec30e698dba1a40bdb76580d2532c08f944784b1d5fa"`
[INFO] running `"docker" "rm" "-f" "0fc7b19c7ab37af761c5ec30e698dba1a40bdb76580d2532c08f944784b1d5fa"`
[INFO] [stdout] 0fc7b19c7ab37af761c5ec30e698dba1a40bdb76580d2532c08f944784b1d5fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/TheNeikos/rustdock:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 241392f3c2be0cd4fe5f8a61f6133e526994a16afd9a616005e439f2b30f4674
[INFO] running `"docker" "start" "-a" "241392f3c2be0cd4fe5f8a61f6133e526994a16afd9a616005e439f2b30f4674"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustdock-5d4ebd00f70221f5
[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" "241392f3c2be0cd4fe5f8a61f6133e526994a16afd9a616005e439f2b30f4674"`
[INFO] running `"docker" "rm" "-f" "241392f3c2be0cd4fe5f8a61f6133e526994a16afd9a616005e439f2b30f4674"`
[INFO] [stdout] 241392f3c2be0cd4fe5f8a61f6133e526994a16afd9a616005e439f2b30f4674