[INFO] crate firestarter 0.3.2 is already in cache
[INFO] extracting crate firestarter 0.3.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/firestarter/0.3.2
[INFO] extracting crate firestarter 0.3.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/firestarter/0.3.2
[INFO] validating manifest of firestarter-0.3.2 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 firestarter-0.3.2 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 firestarter-0.3.2
[INFO] finished frobbing firestarter-0.3.2
[INFO] frobbed toml for firestarter-0.3.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/firestarter/0.3.2/Cargo.toml
[INFO] started frobbing firestarter-0.3.2
[INFO] finished frobbing firestarter-0.3.2
[INFO] frobbed toml for firestarter-0.3.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/firestarter/0.3.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 firestarter-0.3.2 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/firestarter/0.3.2:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 285e88820bdb125d0b2ef1faf30e56614515091ec3b5a549f0dfb4de0d712fab
[INFO] running `"docker" "start" "-a" "285e88820bdb125d0b2ef1faf30e56614515091ec3b5a549f0dfb4de0d712fab"`
[INFO] [stderr]    Compiling firestarter v0.3.2 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `io` is imported redundantly
[INFO] [stderr]   --> src/utils.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 2  | use std::{env, io, time};
[INFO] [stderr]    |                -- the item `io` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 25 |     use std::io;
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.44s
[INFO] running `"docker" "inspect" "285e88820bdb125d0b2ef1faf30e56614515091ec3b5a549f0dfb4de0d712fab"`
[INFO] running `"docker" "rm" "-f" "285e88820bdb125d0b2ef1faf30e56614515091ec3b5a549f0dfb4de0d712fab"`
[INFO] [stdout] 285e88820bdb125d0b2ef1faf30e56614515091ec3b5a549f0dfb4de0d712fab
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/firestarter/0.3.2:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] be1df1534f067c3d9dc686f02d7915cc6e47cecd426bee93f9e2a8a4e444060a
[INFO] running `"docker" "start" "-a" "be1df1534f067c3d9dc686f02d7915cc6e47cecd426bee93f9e2a8a4e444060a"`
[INFO] [stderr]    Compiling firestarter v0.3.2 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `io` is imported redundantly
[INFO] [stderr]   --> src/utils.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 2  | use std::{env, io, time};
[INFO] [stderr]    |                -- the item `io` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 25 |     use std::io;
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.76s
[INFO] running `"docker" "inspect" "be1df1534f067c3d9dc686f02d7915cc6e47cecd426bee93f9e2a8a4e444060a"`
[INFO] running `"docker" "rm" "-f" "be1df1534f067c3d9dc686f02d7915cc6e47cecd426bee93f9e2a8a4e444060a"`
[INFO] [stdout] be1df1534f067c3d9dc686f02d7915cc6e47cecd426bee93f9e2a8a4e444060a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/firestarter/0.3.2:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] a4d5264545f7f0361342c9ce80919dd983fc9d87cef9cfd75ba41eadba8aca0f
[INFO] running `"docker" "start" "-a" "a4d5264545f7f0361342c9ce80919dd983fc9d87cef9cfd75ba41eadba8aca0f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/firestarter-5587c641fc941687
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test config::test_parse_cmd_env ... ok
[INFO] [stdout] test config::test_parse_cmd ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a4d5264545f7f0361342c9ce80919dd983fc9d87cef9cfd75ba41eadba8aca0f"`
[INFO] running `"docker" "rm" "-f" "a4d5264545f7f0361342c9ce80919dd983fc9d87cef9cfd75ba41eadba8aca0f"`
[INFO] [stdout] a4d5264545f7f0361342c9ce80919dd983fc9d87cef9cfd75ba41eadba8aca0f