[INFO] cloning repository https://github.com/SilkRose/Rarity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SilkRose/Rarity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilkRose%2FRarity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilkRose%2FRarity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1bb21dfc0084ed27ffc97af323784ee8650100b8
[INFO] checking SilkRose/Rarity against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilkRose%2FRarity" "/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/SilkRose/Rarity 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] started tweaking git repo https://github.com/SilkRose/Rarity
[INFO] finished tweaking git repo https://github.com/SilkRose/Rarity
[INFO] tweaked toml for git repo https://github.com/SilkRose/Rarity written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SilkRose/Rarity 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded markdown v1.0.0-alpha.17
[INFO] [stderr]   Downloaded terminal_color_builder v0.1.1
[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] c9b48787dd8e5440d8fca4e581c287c168a6e165a2f270a8793315ee46a3d0c2
[INFO] running `Command { std: "docker" "start" "-a" "c9b48787dd8e5440d8fca4e581c287c168a6e165a2f270a8793315ee46a3d0c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9b48787dd8e5440d8fca4e581c287c168a6e165a2f270a8793315ee46a3d0c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9b48787dd8e5440d8fca4e581c287c168a6e165a2f270a8793315ee46a3d0c2", kill_on_drop: false }`
[INFO] [stdout] c9b48787dd8e5440d8fca4e581c287c168a6e165a2f270a8793315ee46a3d0c2
[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] 05cc1f50372dd3be15b5f91ebbd9282ab84f67f127cdb25db93473c060e2350c
[INFO] running `Command { std: "docker" "start" "-a" "05cc1f50372dd3be15b5f91ebbd9282ab84f67f127cdb25db93473c060e2350c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling camino v1.1.7
[INFO] [stderr]    Compiling serde v1.0.201
[INFO] [stderr]    Compiling indoc v2.0.5
[INFO] [stderr]     Checking markdown v1.0.0-alpha.17
[INFO] [stderr]     Checking terminal_color_builder v0.1.1
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling syn v2.0.63
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.201
[INFO] [stderr]     Checking fancy-regex v0.13.0
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking rarity v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `identifier` and `count` are never read
[INFO] [stdout]   --> src/word_stats.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct WordResult {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 18 |     identifier: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 19 |     count: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WordResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `identifier` and `count` are never read
[INFO] [stdout]   --> src/word_stats.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct WordResult {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 18 |     identifier: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 19 |     count: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WordResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.39s
[INFO] running `Command { std: "docker" "inspect" "05cc1f50372dd3be15b5f91ebbd9282ab84f67f127cdb25db93473c060e2350c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05cc1f50372dd3be15b5f91ebbd9282ab84f67f127cdb25db93473c060e2350c", kill_on_drop: false }`
[INFO] [stdout] 05cc1f50372dd3be15b5f91ebbd9282ab84f67f127cdb25db93473c060e2350c