[INFO] cloning repository https://github.com/Rudxain/collatz_finder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rudxain/collatz_finder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRudxain%2Fcollatz_finder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRudxain%2Fcollatz_finder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6bebbbc6aa924032996d7e37bb20d1dff7968d6e
[INFO] checking Rudxain/collatz_finder against master#36b61e5aa593cc60cc92fc548b0d351e414aee2a for pr-116930
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRudxain%2Fcollatz_finder" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Rudxain/collatz_finder on toolchain 36b61e5aa593cc60cc92fc548b0d351e414aee2a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Rudxain/collatz_finder
[INFO] finished tweaking git repo https://github.com/Rudxain/collatz_finder
[INFO] tweaked toml for git repo https://github.com/Rudxain/collatz_finder written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Rudxain/collatz_finder 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" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0764f1d75eef7ff7c30271810dcdb2f38caba0be25532eaf34185a5561754cf0
[INFO] running `Command { std: "docker" "start" "-a" "0764f1d75eef7ff7c30271810dcdb2f38caba0be25532eaf34185a5561754cf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0764f1d75eef7ff7c30271810dcdb2f38caba0be25532eaf34185a5561754cf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0764f1d75eef7ff7c30271810dcdb2f38caba0be25532eaf34185a5561754cf0", kill_on_drop: false }`
[INFO] [stdout] 0764f1d75eef7ff7c30271810dcdb2f38caba0be25532eaf34185a5561754cf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+36b61e5aa593cc60cc92fc548b0d351e414aee2a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5515fd623f9dc0086fcdb2be411c72304f47616ff922b07236c3d35868a44cc
[INFO] running `Command { std: "docker" "start" "-a" "c5515fd623f9dc0086fcdb2be411c72304f47616ff922b07236c3d35868a44cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking num-traits v0.2.15
[INFO] [stderr]     Checking collatz_finder v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `PosInf` and `NegInf` are never constructed
[INFO] [stdout]   --> src/module.rs:41:2
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub enum Range {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 41 |     PosInf = 1,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 42 |     /// Negative Infinity
[INFO] [stdout] 43 |     NegInf = -1,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/module.rs:2:2
[INFO] [stdout]    |
[INFO] [stdout] 2  |     unused,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `PosInf` and `NegInf` are never constructed
[INFO] [stdout]   --> src/module.rs:41:2
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub enum Range {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 41 |     PosInf = 1,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 42 |     /// Negative Infinity
[INFO] [stdout] 43 |     NegInf = -1,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/module.rs:2:2
[INFO] [stdout]    |
[INFO] [stdout] 2  |     unused,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.71s
[INFO] running `Command { std: "docker" "inspect" "c5515fd623f9dc0086fcdb2be411c72304f47616ff922b07236c3d35868a44cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5515fd623f9dc0086fcdb2be411c72304f47616ff922b07236c3d35868a44cc", kill_on_drop: false }`
[INFO] [stdout] c5515fd623f9dc0086fcdb2be411c72304f47616ff922b07236c3d35868a44cc