[INFO] cloning repository https://github.com/willemml/rcas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/willemml/rcas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillemml%2Frcas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillemml%2Frcas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ee4c0ee345a6dd51fcb24cd093c6f441459eecb
[INFO] checking willemml/rcas against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillemml%2Frcas" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/willemml/rcas on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/willemml/rcas
[INFO] finished tweaking git repo https://github.com/willemml/rcas
[INFO] tweaked toml for git repo https://github.com/willemml/rcas written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/willemml/rcas already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42fc4c9a346e4805d3d35e95ecb676042a6c06150f834322d9601bf94f8a9e06
[INFO] running `Command { std: "docker" "start" "-a" "42fc4c9a346e4805d3d35e95ecb676042a6c06150f834322d9601bf94f8a9e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42fc4c9a346e4805d3d35e95ecb676042a6c06150f834322d9601bf94f8a9e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42fc4c9a346e4805d3d35e95ecb676042a6c06150f834322d9601bf94f8a9e06", kill_on_drop: false }`
[INFO] [stdout] 42fc4c9a346e4805d3d35e95ecb676042a6c06150f834322d9601bf94f8a9e06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2afd03a0bd5a7644003931853cb03c2060d138311a86b4ae5f699ddebf7e829a
[INFO] running `Command { std: "docker" "start" "-a" "2afd03a0bd5a7644003931853cb03c2060d138311a86b4ae5f699ddebf7e829a", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]     Checking citrus-cas v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `alloc::vec`
[INFO] [stdout]  --> src/expression/latex.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use alloc::vec;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `boxed::Box`, `string::ToString`, and `vec`
[INFO] [stdout]    --> src/expression/latex.rs:411:17
[INFO] [stdout]     |
[INFO] [stdout] 411 |     use alloc::{boxed::Box, string::ToString, vec};
[INFO] [stdout]     |                 ^^^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Atom`, `Escape`, `Expression`, and `Numeric`
[INFO] [stdout]    --> src/expression/latex.rs:413:46
[INFO] [stdout]     |
[INFO] [stdout] 413 |     use crate::expression::expression_tree::{Atom, Escape, Expression, Numeric};
[INFO] [stdout]     |                                              ^^^^  ^^^^^^  ^^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `latexify` and `parse`
[INFO] [stdout]    --> src/expression/latex.rs:415:17
[INFO] [stdout]     |
[INFO] [stdout] 415 |     use super::{latexify, parse};
[INFO] [stdout]     |                 ^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::vec`
[INFO] [stdout]  --> src/expression/latex.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use alloc::vec;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "2afd03a0bd5a7644003931853cb03c2060d138311a86b4ae5f699ddebf7e829a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2afd03a0bd5a7644003931853cb03c2060d138311a86b4ae5f699ddebf7e829a", kill_on_drop: false }`
[INFO] [stdout] 2afd03a0bd5a7644003931853cb03c2060d138311a86b4ae5f699ddebf7e829a