[INFO] updating cached repository tofagerl/sortthing
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tofagerl/sortthing
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tofagerl/sortthing" "work/ex/beta-1.38-1/sources/1.37.0/gh/tofagerl/sortthing"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tofagerl/sortthing'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tofagerl/sortthing" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tofagerl/sortthing"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tofagerl/sortthing'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cd9f575d122109a5cc410e8e3a4c7f5fceefafe7
[INFO] sha for GitHub repo tofagerl/sortthing: cd9f575d122109a5cc410e8e3a4c7f5fceefafe7
[INFO] validating manifest of tofagerl/sortthing on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tofagerl/sortthing on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tofagerl/sortthing
[INFO] finished frobbing tofagerl/sortthing
[INFO] frobbed toml for tofagerl/sortthing written to work/ex/beta-1.38-1/sources/1.37.0/gh/tofagerl/sortthing/Cargo.toml
[INFO] started frobbing tofagerl/sortthing
[INFO] finished frobbing tofagerl/sortthing
[INFO] frobbed toml for tofagerl/sortthing written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tofagerl/sortthing/Cargo.toml
[INFO] crate tofagerl/sortthing already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tofagerl/sortthing against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tofagerl/sortthing:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] dbcfe6987f5d2d92d314724315d5e1a4a05ed527189998f87c6815b6c70e4c6b
[INFO] running `"docker" "start" "-a" "dbcfe6987f5d2d92d314724315d5e1a4a05ed527189998f87c6815b6c70e4c6b"`
[INFO] [stderr]    Compiling sortthing v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]  --> src/main.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                 ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `"docker" "inspect" "dbcfe6987f5d2d92d314724315d5e1a4a05ed527189998f87c6815b6c70e4c6b"`
[INFO] running `"docker" "rm" "-f" "dbcfe6987f5d2d92d314724315d5e1a4a05ed527189998f87c6815b6c70e4c6b"`
[INFO] [stdout] dbcfe6987f5d2d92d314724315d5e1a4a05ed527189998f87c6815b6c70e4c6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tofagerl/sortthing:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4411ebf2643b9aecab6375576dfa6fe7818c09573f730f81f8152ce46d480a31
[INFO] running `"docker" "start" "-a" "4411ebf2643b9aecab6375576dfa6fe7818c09573f730f81f8152ce46d480a31"`
[INFO] [stderr]    Compiling sortthing v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]  --> src/main.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                 ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tomsort.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let mut file_contents = fs::read_to_string("test_strings.json").expect("No such file 'testdata.json'");
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "4411ebf2643b9aecab6375576dfa6fe7818c09573f730f81f8152ce46d480a31"`
[INFO] running `"docker" "rm" "-f" "4411ebf2643b9aecab6375576dfa6fe7818c09573f730f81f8152ce46d480a31"`
[INFO] [stdout] 4411ebf2643b9aecab6375576dfa6fe7818c09573f730f81f8152ce46d480a31
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tofagerl/sortthing:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] d52510a0283f95867db21b4484ad6b616d07be0f12df5b9bfaaafa56702a6a65
[INFO] running `"docker" "start" "-a" "d52510a0283f95867db21b4484ad6b616d07be0f12df5b9bfaaafa56702a6a65"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sortthing-fc1fcb0c8b4a6ab3
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tomsort::tests::simple_sort_test ... ok
[INFO] [stdout] test tomsort::tests::word_sort_test ... 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" "d52510a0283f95867db21b4484ad6b616d07be0f12df5b9bfaaafa56702a6a65"`
[INFO] running `"docker" "rm" "-f" "d52510a0283f95867db21b4484ad6b616d07be0f12df5b9bfaaafa56702a6a65"`
[INFO] [stdout] d52510a0283f95867db21b4484ad6b616d07be0f12df5b9bfaaafa56702a6a65