[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-1.37-6/sources/1.36.0/gh/tofagerl/sortthing"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/tofagerl/sortthing'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tofagerl/sortthing" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tofagerl/sortthing"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tofagerl/sortthing 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 tofagerl/sortthing
[INFO] finished frobbing tofagerl/sortthing
[INFO] frobbed toml for tofagerl/sortthing written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "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 tofagerl/sortthing 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-1/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/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 7bcdc0407311fc9a7bfec48a284b3ab8ed42232d9354a90bab4be55787051371
[INFO] running `"docker" "start" "-a" "7bcdc0407311fc9a7bfec48a284b3ab8ed42232d9354a90bab4be55787051371"`
[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 1.13s
[INFO] running `"docker" "inspect" "7bcdc0407311fc9a7bfec48a284b3ab8ed42232d9354a90bab4be55787051371"`
[INFO] running `"docker" "rm" "-f" "7bcdc0407311fc9a7bfec48a284b3ab8ed42232d9354a90bab4be55787051371"`
[INFO] [stdout] 7bcdc0407311fc9a7bfec48a284b3ab8ed42232d9354a90bab4be55787051371
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] cb317ded5b6971d132f699d0327ac18ef45e5b9c5ac858b192a1f97b3b022745
[INFO] running `"docker" "start" "-a" "cb317ded5b6971d132f699d0327ac18ef45e5b9c5ac858b192a1f97b3b022745"`
[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 1.26s
[INFO] running `"docker" "inspect" "cb317ded5b6971d132f699d0327ac18ef45e5b9c5ac858b192a1f97b3b022745"`
[INFO] running `"docker" "rm" "-f" "cb317ded5b6971d132f699d0327ac18ef45e5b9c5ac858b192a1f97b3b022745"`
[INFO] [stdout] cb317ded5b6971d132f699d0327ac18ef45e5b9c5ac858b192a1f97b3b022745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 3547bfa0c38f6523ab68649327ea64281d1b28bc1771e46c986728f6b4268878
[INFO] running `"docker" "start" "-a" "3547bfa0c38f6523ab68649327ea64281d1b28bc1771e46c986728f6b4268878"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sortthing-034cdc3f7fe8d303
[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" "3547bfa0c38f6523ab68649327ea64281d1b28bc1771e46c986728f6b4268878"`
[INFO] running `"docker" "rm" "-f" "3547bfa0c38f6523ab68649327ea64281d1b28bc1771e46c986728f6b4268878"`
[INFO] [stdout] 3547bfa0c38f6523ab68649327ea64281d1b28bc1771e46c986728f6b4268878