[INFO] updating cached repository msehnout/redesigned-chainsaw
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/msehnout/redesigned-chainsaw
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/msehnout/redesigned-chainsaw" "work/ex/beta-1.38-1/sources/1.37.0/gh/msehnout/redesigned-chainsaw"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/msehnout/redesigned-chainsaw'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/msehnout/redesigned-chainsaw" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/msehnout/redesigned-chainsaw"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/msehnout/redesigned-chainsaw'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5a872edc03858013c6b24023ca1534584f4dccc2
[INFO] sha for GitHub repo msehnout/redesigned-chainsaw: 5a872edc03858013c6b24023ca1534584f4dccc2
[INFO] validating manifest of msehnout/redesigned-chainsaw 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 msehnout/redesigned-chainsaw 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 msehnout/redesigned-chainsaw
[INFO] finished frobbing msehnout/redesigned-chainsaw
[INFO] frobbed toml for msehnout/redesigned-chainsaw written to work/ex/beta-1.38-1/sources/1.37.0/gh/msehnout/redesigned-chainsaw/Cargo.toml
[INFO] started frobbing msehnout/redesigned-chainsaw
[INFO] finished frobbing msehnout/redesigned-chainsaw
[INFO] frobbed toml for msehnout/redesigned-chainsaw written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/msehnout/redesigned-chainsaw/Cargo.toml
[INFO] crate msehnout/redesigned-chainsaw 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 msehnout/redesigned-chainsaw 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-7/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/msehnout/redesigned-chainsaw:/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] 5fd9652d9350fdf4a297d0803f27604d05a80ced1af37271423e465c945cb8e5
[INFO] running `"docker" "start" "-a" "5fd9652d9350fdf4a297d0803f27604d05a80ced1af37271423e465c945cb8e5"`
[INFO] [stderr]    Compiling redesigned-chainsaw v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |     let mut file_name;
[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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     file.read_to_string(&mut tape);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "5fd9652d9350fdf4a297d0803f27604d05a80ced1af37271423e465c945cb8e5"`
[INFO] running `"docker" "rm" "-f" "5fd9652d9350fdf4a297d0803f27604d05a80ced1af37271423e465c945cb8e5"`
[INFO] [stdout] 5fd9652d9350fdf4a297d0803f27604d05a80ced1af37271423e465c945cb8e5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/msehnout/redesigned-chainsaw:/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] 7b5a4cf2cb12e3c9845242f2a78aaac42792825ace86dd1f737db1cba43cc420
[INFO] running `"docker" "start" "-a" "7b5a4cf2cb12e3c9845242f2a78aaac42792825ace86dd1f737db1cba43cc420"`
[INFO] [stderr]    Compiling redesigned-chainsaw v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |     let mut file_name;
[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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     file.read_to_string(&mut tape);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "7b5a4cf2cb12e3c9845242f2a78aaac42792825ace86dd1f737db1cba43cc420"`
[INFO] running `"docker" "rm" "-f" "7b5a4cf2cb12e3c9845242f2a78aaac42792825ace86dd1f737db1cba43cc420"`
[INFO] [stdout] 7b5a4cf2cb12e3c9845242f2a78aaac42792825ace86dd1f737db1cba43cc420
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/msehnout/redesigned-chainsaw:/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] 9e1a9b35dcb2fd1241f6bd40c394ab3af98080e287574e140689207bdd83a85c
[INFO] running `"docker" "start" "-a" "9e1a9b35dcb2fd1241f6bd40c394ab3af98080e287574e140689207bdd83a85c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/redesigned_chainsaw-e3d660bf29b746a7
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_tape_reading ... ok
[INFO] [stdout] test test_read_instruction ... ok
[INFO] [stdout] test test_sth ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9e1a9b35dcb2fd1241f6bd40c394ab3af98080e287574e140689207bdd83a85c"`
[INFO] running `"docker" "rm" "-f" "9e1a9b35dcb2fd1241f6bd40c394ab3af98080e287574e140689207bdd83a85c"`
[INFO] [stdout] 9e1a9b35dcb2fd1241f6bd40c394ab3af98080e287574e140689207bdd83a85c