[INFO] cloning repository https://github.com/jtong/rust-fizzbuzz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jtong/rust-fizzbuzz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtong%2Frust-fizzbuzz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtong%2Frust-fizzbuzz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d95eb8cc7b862bedc0a6b57fc8c70e6154e9a938
[INFO] checking jtong/rust-fizzbuzz against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtong%2Frust-fizzbuzz" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jtong/rust-fizzbuzz on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jtong/rust-fizzbuzz
[INFO] finished tweaking git repo https://github.com/jtong/rust-fizzbuzz
[INFO] tweaked toml for git repo https://github.com/jtong/rust-fizzbuzz written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/jtong/rust-fizzbuzz already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 629aa3c8789bf7b9b611ee33776ffea9ba77b74b3c6e540e0f939de71223c768
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "629aa3c8789bf7b9b611ee33776ffea9ba77b74b3c6e540e0f939de71223c768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "629aa3c8789bf7b9b611ee33776ffea9ba77b74b3c6e540e0f939de71223c768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "629aa3c8789bf7b9b611ee33776ffea9ba77b74b3c6e540e0f939de71223c768", kill_on_drop: false }`
[INFO] [stdout] 629aa3c8789bf7b9b611ee33776ffea9ba77b74b3c6e540e0f939de71223c768
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad9a89ac26a10379e781033652dcf930d02a48a74594b0f9947340fe7c384dbb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ad9a89ac26a10379e781033652dcf930d02a48a74594b0f9947340fe7c384dbb", kill_on_drop: false }`
[INFO] [stderr]     Checking fizzbuzz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `FizzBuzz`
[INFO] [stdout]  --> src/fizzbuzz.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct FizzBuzz {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `say_it`
[INFO] [stdout]  --> src/fizzbuzz.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn say_it(input: u32) -> String {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `divided_by357`
[INFO] [stdout]   --> src/fizzbuzz.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn divided_by357(input: u32) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `say_it_external`
[INFO] [stdout]   --> src/fizzbuzz.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn say_it_external(input: u32) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "ad9a89ac26a10379e781033652dcf930d02a48a74594b0f9947340fe7c384dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad9a89ac26a10379e781033652dcf930d02a48a74594b0f9947340fe7c384dbb", kill_on_drop: false }`
[INFO] [stdout] ad9a89ac26a10379e781033652dcf930d02a48a74594b0f9947340fe7c384dbb