[INFO] cloning repository https://github.com/itsaark/helix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itsaark/helix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitsaark%2Fhelix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitsaark%2Fhelix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d1b22b227fb8e070ea84db4a46ee06186919788
[INFO] testing itsaark/helix against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitsaark%2Fhelix" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/itsaark/helix on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/itsaark/helix
[INFO] finished tweaking git repo https://github.com/itsaark/helix
[INFO] tweaked toml for git repo https://github.com/itsaark/helix written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/itsaark/helix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b9083a6edb62f242d7fabc2530070d221ac84ac333e6755beb73e7b38210ddc
[INFO] running `Command { std: "docker" "start" "-a" "5b9083a6edb62f242d7fabc2530070d221ac84ac333e6755beb73e7b38210ddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b9083a6edb62f242d7fabc2530070d221ac84ac333e6755beb73e7b38210ddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b9083a6edb62f242d7fabc2530070d221ac84ac333e6755beb73e7b38210ddc", kill_on_drop: false }`
[INFO] [stdout] 5b9083a6edb62f242d7fabc2530070d221ac84ac333e6755beb73e7b38210ddc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 835bf43afd6eab1bb7e99320d784f77e8431163f562b0d6dd37f5dc68f802525
[INFO] running `Command { std: "docker" "start" "-a" "835bf43afd6eab1bb7e99320d784f77e8431163f562b0d6dd37f5dc68f802525", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]    Compiling ryu v0.2.4
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling itoa v0.4.2
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling data-encoding v2.1.1
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling aho-corasick v0.6.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.26
[INFO] [stderr]    Compiling digest v0.7.5
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.71
[INFO] [stderr]    Compiling helix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/compression/perceptual.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let mut mask = u64::from(*byte);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "835bf43afd6eab1bb7e99320d784f77e8431163f562b0d6dd37f5dc68f802525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "835bf43afd6eab1bb7e99320d784f77e8431163f562b0d6dd37f5dc68f802525", kill_on_drop: false }`
[INFO] [stdout] 835bf43afd6eab1bb7e99320d784f77e8431163f562b0d6dd37f5dc68f802525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f90d85e368d22243fe4fa885ca5cb4aa8670ab3419aa6d04db3fc89bdb597268
[INFO] running `Command { std: "docker" "start" "-a" "f90d85e368d22243fe4fa885ca5cb4aa8670ab3419aa6d04db3fc89bdb597268", kill_on_drop: false }`
[INFO] [stderr]    Compiling helix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/compression/fasta.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |         for i in 0..10 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/compression/fasta.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |         let d = f1.distance_to(&f2);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/compression/perceptual.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let mut mask = u64::from(*byte);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "f90d85e368d22243fe4fa885ca5cb4aa8670ab3419aa6d04db3fc89bdb597268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f90d85e368d22243fe4fa885ca5cb4aa8670ab3419aa6d04db3fc89bdb597268", kill_on_drop: false }`
[INFO] [stdout] f90d85e368d22243fe4fa885ca5cb4aa8670ab3419aa6d04db3fc89bdb597268
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b0d2fdfc77e07d40b0200acf1f07f528a74db80c237e823cba2e3797bace06ef
[INFO] running `Command { std: "docker" "start" "-a" "b0d2fdfc77e07d40b0200acf1f07f528a74db80c237e823cba2e3797bace06ef", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/compression/fasta.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |         for i in 0..10 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]    --> src/compression/fasta.rs:222:13
[INFO] [stderr]     |
[INFO] [stderr] 222 |         let d = f1.distance_to(&f2);
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compression/perceptual.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let mut mask = u64::from(*byte);
[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: `helix` (bin "helix" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/helix-5ec7343d1d3c8dfb)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test compression::fasta::tests::distance_to ... ok
[INFO] [stdout] test compression::perceptual::tests::distance_functional ... ok
[INFO] [stdout] test compression::fasta::tests::valid_functional ... ok
[INFO] [stdout] test compression::perceptual::tests::hash_similarity ... ok
[INFO] [stdout] test compression::perceptual::tests::byte_distance_functional ... ok
[INFO] [stdout] test compression::perceptual::tests::distance_safety - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b0d2fdfc77e07d40b0200acf1f07f528a74db80c237e823cba2e3797bace06ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0d2fdfc77e07d40b0200acf1f07f528a74db80c237e823cba2e3797bace06ef", kill_on_drop: false }`
[INFO] [stdout] b0d2fdfc77e07d40b0200acf1f07f528a74db80c237e823cba2e3797bace06ef