[INFO] cloning repository https://github.com/VladYermakovArchived/hex_ex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VladYermakovArchived/hex_ex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVladYermakovArchived%2Fhex_ex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVladYermakovArchived%2Fhex_ex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68194260ccea45379c02330bd53962cf496bd5ed
[INFO] testing VladYermakovArchived/hex_ex against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVladYermakovArchived%2Fhex_ex" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VladYermakovArchived/hex_ex on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/VladYermakovArchived/hex_ex
[INFO] finished tweaking git repo https://github.com/VladYermakovArchived/hex_ex
[INFO] tweaked toml for git repo https://github.com/VladYermakovArchived/hex_ex written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/VladYermakovArchived/hex_ex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e79414d44c07408a2bd67f3d294122adf544a0b7a2f046966b821ecba4cd37dd
[INFO] running `Command { std: "docker" "start" "-a" "e79414d44c07408a2bd67f3d294122adf544a0b7a2f046966b821ecba4cd37dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e79414d44c07408a2bd67f3d294122adf544a0b7a2f046966b821ecba4cd37dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e79414d44c07408a2bd67f3d294122adf544a0b7a2f046966b821ecba4cd37dd", kill_on_drop: false }`
[INFO] [stdout] e79414d44c07408a2bd67f3d294122adf544a0b7a2f046966b821ecba4cd37dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15b21db22a2e2ae3b76c942934a60991b7ac47d9f0d16cca3d6d1d5dec88f55d
[INFO] running `Command { std: "docker" "start" "-a" "15b21db22a2e2ae3b76c942934a60991b7ac47d9f0d16cca3d6d1d5dec88f55d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling he_ex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `log` in this scope
[INFO] [stdout]   --> src/main.rs:26:72
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let delta_t = ((hot_begin - hot_end) - (cold_end - cold_begin)) / (log((hot_begin - hot_end) / (cold_end - cold_begin)));
[INFO] [stdout]    |                                                                        ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: destructuring assignments are unstable
[INFO] [stdout]   --> src/main.rs:56:47
[INFO] [stdout]    |
[INFO] [stdout] 56 |             (hot_end[h_num], cold_now[c_num]) = balance(hot_end[h_num], cold_now[c_num], he_ex);
[INFO] [stdout]    |             --------------------------------- ^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             cannot assign to this expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #71126 <https://github.com/rust-lang/rust/issues/71126> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `[f32]` cannot be indexed by `i32`
[INFO] [stdout]   --> src/main.rs:56:57
[INFO] [stdout]    |
[INFO] [stdout] 56 |             (hot_end[h_num], cold_now[c_num]) = balance(hot_end[h_num], cold_now[c_num], he_ex);
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `SliceIndex<[f32]>` is not implemented for `i32`
[INFO] [stdout]    = note: required because of the requirements on the impl of `Index<i32>` for `Vec<f32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `[f32]` cannot be indexed by `i32`
[INFO] [stdout]   --> src/main.rs:56:73
[INFO] [stdout]    |
[INFO] [stdout] 56 |             (hot_end[h_num], cold_now[c_num]) = balance(hot_end[h_num], cold_now[c_num], he_ex);
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^^^^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `SliceIndex<[f32]>` is not implemented for `i32`
[INFO] [stdout]    = note: required because of the requirements on the impl of `Index<i32>` for `Vec<f32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `[f32]` cannot be indexed by `i32`
[INFO] [stdout]   --> src/main.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 |             (hot_end[h_num], cold_now[c_num]) = balance(hot_end[h_num], cold_now[c_num], he_ex);
[INFO] [stdout]    |              ^^^^^^^^^^^^^^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `SliceIndex<[f32]>` is not implemented for `i32`
[INFO] [stdout]    = note: required because of the requirements on the impl of `Index<i32>` for `Vec<f32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `[f32]` cannot be indexed by `i32`
[INFO] [stdout]   --> src/main.rs:56:30
[INFO] [stdout]    |
[INFO] [stdout] 56 |             (hot_end[h_num], cold_now[c_num]) = balance(hot_end[h_num], cold_now[c_num], he_ex);
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ slice indices are of type `usize` or ranges of `usize`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `SliceIndex<[f32]>` is not implemented for `i32`
[INFO] [stdout]    = note: required because of the requirements on the impl of `Index<i32>` for `Vec<f32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `he_ex`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "15b21db22a2e2ae3b76c942934a60991b7ac47d9f0d16cca3d6d1d5dec88f55d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15b21db22a2e2ae3b76c942934a60991b7ac47d9f0d16cca3d6d1d5dec88f55d", kill_on_drop: false }`
[INFO] [stdout] 15b21db22a2e2ae3b76c942934a60991b7ac47d9f0d16cca3d6d1d5dec88f55d
