[INFO] updating cached repository https://github.com/gLITCHMaster16/rust_twiddle_bits
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b3f299cfef9d6a8817a4c60d4d363edf9e83937a
[INFO] testing gLITCHMaster16/rust_twiddle_bits against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgLITCHMaster16%2Frust_twiddle_bits" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gLITCHMaster16/rust_twiddle_bits on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/gLITCHMaster16/rust_twiddle_bits
[INFO] finished tweaking git repo https://github.com/gLITCHMaster16/rust_twiddle_bits
[INFO] tweaked toml for git repo https://github.com/gLITCHMaster16/rust_twiddle_bits written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/gLITCHMaster16/rust_twiddle_bits already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] a80ada32d8cb28f733ac90dd77919375349522af782455753aaf542bd6e230c8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a80ada32d8cb28f733ac90dd77919375349522af782455753aaf542bd6e230c8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling TwiddleBitsHelloWorld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |         if (self.registers[ REGISTER_PC as usize ] & 1 == 1) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `REGISTER_SF`
[INFO] [stderr]   --> src/main.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const REGISTER_SF: u8 = 6;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OP_LWO`
[INFO] [stderr]   --> src/main.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | const OP_LWO: u16 = 0b1110 << 12;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OP_SWO`
[INFO] [stderr]   --> src/main.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | const OP_SWO: u16 = 0b1111 << 12;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_byte`
[INFO] [stderr]    --> src/main.rs:123:4
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn print_byte(byte: &u8) {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `TwiddleBitsHelloWorld` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `twiddle_bits_hello_world`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:179:5
[INFO] [stderr]     |
[INFO] [stderr] 179 |     file.write_all(&buff);
[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] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "a80ada32d8cb28f733ac90dd77919375349522af782455753aaf542bd6e230c8"`
[INFO] running `"docker" "rm" "-f" "a80ada32d8cb28f733ac90dd77919375349522af782455753aaf542bd6e230c8"`
[INFO] [stdout] a80ada32d8cb28f733ac90dd77919375349522af782455753aaf542bd6e230c8
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2362845ae0eb485f84db41a160975f8c3d8a552c5d7110366865fa56a7e5f582
[INFO] running `"docker" "start" "-a" "2362845ae0eb485f84db41a160975f8c3d8a552c5d7110366865fa56a7e5f582"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling TwiddleBitsHelloWorld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |         if (self.registers[ REGISTER_PC as usize ] & 1 == 1) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `REGISTER_SF`
[INFO] [stderr]   --> src/main.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const REGISTER_SF: u8 = 6;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OP_LWO`
[INFO] [stderr]   --> src/main.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | const OP_LWO: u16 = 0b1110 << 12;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OP_SWO`
[INFO] [stderr]   --> src/main.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | const OP_SWO: u16 = 0b1111 << 12;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_byte`
[INFO] [stderr]    --> src/main.rs:123:4
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn print_byte(byte: &u8) {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `TwiddleBitsHelloWorld` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `twiddle_bits_hello_world`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:179:5
[INFO] [stderr]     |
[INFO] [stderr] 179 |     file.write_all(&buff);
[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] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "2362845ae0eb485f84db41a160975f8c3d8a552c5d7110366865fa56a7e5f582"`
[INFO] running `"docker" "rm" "-f" "2362845ae0eb485f84db41a160975f8c3d8a552c5d7110366865fa56a7e5f582"`
[INFO] [stdout] 2362845ae0eb485f84db41a160975f8c3d8a552c5d7110366865fa56a7e5f582
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] ce7cb94da9e6dccddabcaa86cf404ce17b9a21460c330a314092bce13408aec0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ce7cb94da9e6dccddabcaa86cf404ce17b9a21460c330a314092bce13408aec0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |         if (self.registers[ REGISTER_PC as usize ] & 1 == 1) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `REGISTER_SF`
[INFO] [stderr]   --> src/main.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const REGISTER_SF: u8 = 6;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OP_LWO`
[INFO] [stderr]   --> src/main.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | const OP_LWO: u16 = 0b1110 << 12;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OP_SWO`
[INFO] [stderr]   --> src/main.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | const OP_SWO: u16 = 0b1111 << 12;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_byte`
[INFO] [stderr]    --> src/main.rs:123:4
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn print_byte(byte: &u8) {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `TwiddleBitsHelloWorld` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `twiddle_bits_hello_world`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:179:5
[INFO] [stderr]     |
[INFO] [stderr] 179 |     file.write_all(&buff);
[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] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/TwiddleBitsHelloWorld-3b4e31776d0ce3eb
[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" "ce7cb94da9e6dccddabcaa86cf404ce17b9a21460c330a314092bce13408aec0"`
[INFO] running `"docker" "rm" "-f" "ce7cb94da9e6dccddabcaa86cf404ce17b9a21460c330a314092bce13408aec0"`
[INFO] [stdout] ce7cb94da9e6dccddabcaa86cf404ce17b9a21460c330a314092bce13408aec0