[INFO] updating cached repository kevlarr/rusty-calc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kevlarr/rusty-calc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kevlarr/rusty-calc" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kevlarr/rusty-calc"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kevlarr/rusty-calc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kevlarr/rusty-calc" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/kevlarr/rusty-calc"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/kevlarr/rusty-calc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c59ab89ab67f6cf8d97e1e8cfc9292e0184020bd
[INFO] sha for GitHub repo kevlarr/rusty-calc: c59ab89ab67f6cf8d97e1e8cfc9292e0184020bd
[INFO] validating manifest of kevlarr/rusty-calc on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kevlarr/rusty-calc on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kevlarr/rusty-calc
[INFO] finished frobbing kevlarr/rusty-calc
[INFO] frobbed toml for kevlarr/rusty-calc written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kevlarr/rusty-calc/Cargo.toml
[INFO] started frobbing kevlarr/rusty-calc
[INFO] finished frobbing kevlarr/rusty-calc
[INFO] frobbed toml for kevlarr/rusty-calc written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/kevlarr/rusty-calc/Cargo.toml
[INFO] crate kevlarr/rusty-calc has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing kevlarr/rusty-calc against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kevlarr/rusty-calc:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] cca8d53ada694d815c194bb01bf14317a1e59ef5c9bea367a51681bf3a894afa
[INFO] running `"docker" "start" "-a" "cca8d53ada694d815c194bb01bf14317a1e59ef5c9bea367a51681bf3a894afa"`
[INFO] [stderr]    Compiling rustycalc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/types/binary.rs:111:9
[INFO] [stderr]     |
[INFO] [stderr] 111 |         write!(f, "0b");
[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]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/types/binary.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 write!(f, "_");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `"docker" "inspect" "cca8d53ada694d815c194bb01bf14317a1e59ef5c9bea367a51681bf3a894afa"`
[INFO] running `"docker" "rm" "-f" "cca8d53ada694d815c194bb01bf14317a1e59ef5c9bea367a51681bf3a894afa"`
[INFO] [stdout] cca8d53ada694d815c194bb01bf14317a1e59ef5c9bea367a51681bf3a894afa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kevlarr/rusty-calc:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3127400689bcbdf53db2fc60f7b1e11f08652143b0b36a8d26c225f635c51d7d
[INFO] running `"docker" "start" "-a" "3127400689bcbdf53db2fc60f7b1e11f08652143b0b36a8d26c225f635c51d7d"`
[INFO] [stderr]    Compiling rustycalc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/types/binary.rs:111:9
[INFO] [stderr]     |
[INFO] [stderr] 111 |         write!(f, "0b");
[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]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/types/binary.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 write!(f, "_");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "3127400689bcbdf53db2fc60f7b1e11f08652143b0b36a8d26c225f635c51d7d"`
[INFO] running `"docker" "rm" "-f" "3127400689bcbdf53db2fc60f7b1e11f08652143b0b36a8d26c225f635c51d7d"`
[INFO] [stdout] 3127400689bcbdf53db2fc60f7b1e11f08652143b0b36a8d26c225f635c51d7d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/kevlarr/rusty-calc:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 0f8bfe0e45a8da9e17528d98c32f88066dbc7dcc7defc5973506cd04326ae077
[INFO] running `"docker" "start" "-a" "0f8bfe0e45a8da9e17528d98c32f88066dbc7dcc7defc5973506cd04326ae077"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustycalc-f8c64046640e4c0e
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::add_test ... ok
[INFO] [stdout] test types::bit::tests::test_half_adder ... ok
[INFO] [stdout] test types::bit::tests::test_multiplier ... ok
[INFO] [stdout] test tests::subtract_test ... ok
[INFO] [stdout] test types::bit::tests::test_full_adder ... ok
[INFO] [stdout] test types::binary::tests::to_int_test ... ok
[INFO] [stdout] test types::binary::tests::from_int_test ... ok
[INFO] [stdout] test tests::multiply_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustycalc-df87cc1137c7dd9a
[INFO] [stderr]    Doc-tests rustycalc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0f8bfe0e45a8da9e17528d98c32f88066dbc7dcc7defc5973506cd04326ae077"`
[INFO] running `"docker" "rm" "-f" "0f8bfe0e45a8da9e17528d98c32f88066dbc7dcc7defc5973506cd04326ae077"`
[INFO] [stdout] 0f8bfe0e45a8da9e17528d98c32f88066dbc7dcc7defc5973506cd04326ae077