[INFO] updating cached repository mgrabmueller/med
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mgrabmueller/med
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mgrabmueller/med" "work/ex/beta-1.37-6/sources/1.36.0/gh/mgrabmueller/med"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mgrabmueller/med'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mgrabmueller/med" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mgrabmueller/med"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mgrabmueller/med'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] eea892b4e510feaa621765d7c2bfa16f7c4ee523
[INFO] sha for GitHub repo mgrabmueller/med: eea892b4e510feaa621765d7c2bfa16f7c4ee523
[INFO] validating manifest of mgrabmueller/med 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 mgrabmueller/med 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 mgrabmueller/med
[INFO] finished frobbing mgrabmueller/med
[INFO] frobbed toml for mgrabmueller/med written to work/ex/beta-1.37-6/sources/1.36.0/gh/mgrabmueller/med/Cargo.toml
[INFO] started frobbing mgrabmueller/med
[INFO] finished frobbing mgrabmueller/med
[INFO] frobbed toml for mgrabmueller/med written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mgrabmueller/med/Cargo.toml
[INFO] crate mgrabmueller/med 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mgrabmueller/med 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/mgrabmueller/med:/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] f3616bbf16af38fd393e03144acdc71ff9a80bcb485d95bd186ca857b5f977f7
[INFO] running `"docker" "start" "-a" "f3616bbf16af38fd393e03144acdc71ff9a80bcb485d95bd186ca857b5f977f7"`
[INFO] [stderr]    Compiling med v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/main.rs:1058:13
[INFO] [stderr]      |
[INFO] [stderr] 1058 |         let mut f = BufReader::new(File::open(fname)?);
[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: variable does not need to be mutable
[INFO] [stderr]     --> src/main.rs:1671:13
[INFO] [stderr]      |
[INFO] [stderr] 1671 |         let mut last_cmd = Some(c);
[INFO] [stderr]      |             ----^^^^^^^^
[INFO] [stderr]      |             |
[INFO] [stderr]      |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `"docker" "inspect" "f3616bbf16af38fd393e03144acdc71ff9a80bcb485d95bd186ca857b5f977f7"`
[INFO] running `"docker" "rm" "-f" "f3616bbf16af38fd393e03144acdc71ff9a80bcb485d95bd186ca857b5f977f7"`
[INFO] [stdout] f3616bbf16af38fd393e03144acdc71ff9a80bcb485d95bd186ca857b5f977f7
[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/mgrabmueller/med:/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] 06bcfb4d03271bb70735ba41c6810acdf1e200d2fa636eacd6ecfca044b1ead9
[INFO] running `"docker" "start" "-a" "06bcfb4d03271bb70735ba41c6810acdf1e200d2fa636eacd6ecfca044b1ead9"`
[INFO] [stderr]    Compiling med v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/main.rs:1058:13
[INFO] [stderr]      |
[INFO] [stderr] 1058 |         let mut f = BufReader::new(File::open(fname)?);
[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: variable does not need to be mutable
[INFO] [stderr]     --> src/main.rs:1671:13
[INFO] [stderr]      |
[INFO] [stderr] 1671 |         let mut last_cmd = Some(c);
[INFO] [stderr]      |             ----^^^^^^^^
[INFO] [stderr]      |             |
[INFO] [stderr]      |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.56s
[INFO] running `"docker" "inspect" "06bcfb4d03271bb70735ba41c6810acdf1e200d2fa636eacd6ecfca044b1ead9"`
[INFO] running `"docker" "rm" "-f" "06bcfb4d03271bb70735ba41c6810acdf1e200d2fa636eacd6ecfca044b1ead9"`
[INFO] [stdout] 06bcfb4d03271bb70735ba41c6810acdf1e200d2fa636eacd6ecfca044b1ead9
[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/mgrabmueller/med:/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] bc73ed912a16cce21c163b89ed54df1db25e545f6e4a6d340e17d6beeb9bea55
[INFO] running `"docker" "start" "-a" "bc73ed912a16cce21c163b89ed54df1db25e545f6e4a6d340e17d6beeb9bea55"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.59s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/med-0baa74abf34c66f1
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test::prompt_set ... ok
[INFO] [stdout] test test::quit_modified ... ok
[INFO] [stdout] test test::prompt_toggle ... ok
[INFO] [stdout] test test::quit_modified3 ... ok
[INFO] [stdout] test test::quit_unmodified ... ok
[INFO] [stdout] test test::quit_modified2 ... ok
[INFO] [stdout] test test::quit_unmodified2 ... ok
[INFO] [stdout] test test::prompt_set2 ... ok
[INFO] [stdout] test test::mark ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bc73ed912a16cce21c163b89ed54df1db25e545f6e4a6d340e17d6beeb9bea55"`
[INFO] running `"docker" "rm" "-f" "bc73ed912a16cce21c163b89ed54df1db25e545f6e4a6d340e17d6beeb9bea55"`
[INFO] [stdout] bc73ed912a16cce21c163b89ed54df1db25e545f6e4a6d340e17d6beeb9bea55