[INFO] cloning repository https://github.com/rocurley/dice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rocurley/dice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frocurley%2Fdice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frocurley%2Fdice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ab6d7b7ab3beed9afb92ceb3d072c64fa43732d
[INFO] checking rocurley/dice against try#dd2d87b6cc31907ae305875eb6be399783dc0256 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frocurley%2Fdice" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rocurley/dice
[INFO] finished tweaking git repo https://github.com/rocurley/dice
[INFO] tweaked toml for git repo https://github.com/rocurley/dice written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rocurley/dice on toolchain dd2d87b6cc31907ae305875eb6be399783dc0256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rocurley/dice 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" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding autocfg v1.5.0
[INFO] [stderr]       Adding num v0.4.3
[INFO] [stderr]       Adding num-bigint v0.4.6
[INFO] [stderr]       Adding num-complex v0.4.6
[INFO] [stderr]       Adding num-integer v0.1.46
[INFO] [stderr]       Adding num-iter v0.1.45
[INFO] [stderr]       Adding num-rational v0.4.2
[INFO] [stderr]       Adding num-traits v0.2.19
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42793a15547e2357475cb4afd2944485f3711c9e2cb66042423361be1485d5da
[INFO] running `Command { std: "docker" "start" "-a" "42793a15547e2357475cb4afd2944485f3711c9e2cb66042423361be1485d5da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42793a15547e2357475cb4afd2944485f3711c9e2cb66042423361be1485d5da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42793a15547e2357475cb4afd2944485f3711c9e2cb66042423361be1485d5da", kill_on_drop: false }`
[INFO] [stdout] 42793a15547e2357475cb4afd2944485f3711c9e2cb66042423361be1485d5da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+dd2d87b6cc31907ae305875eb6be399783dc0256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e021ed43742ec803ab55efdbf80d8249bf751ea845b6faa571cf214ea6abfc2
[INFO] running `Command { std: "docker" "start" "-a" "3e021ed43742ec803ab55efdbf80d8249bf751ea845b6faa571cf214ea6abfc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking dice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `roll`
[INFO] [stdout]   --> src/main.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn make_selection(roll: DiceRoll, goal: u16) -> Option<DiceRoll> {
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_roll`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `goal`
[INFO] [stdout]   --> src/main.rs:45:35
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn make_selection(roll: DiceRoll, goal: u16) -> Option<DiceRoll> {
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_goal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_selection` is never used
[INFO] [stdout]   --> src/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn make_selection(roll: DiceRoll, goal: u16) -> Option<DiceRoll> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `roll`
[INFO] [stdout]   --> src/main.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn make_selection(roll: DiceRoll, goal: u16) -> Option<DiceRoll> {
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_roll`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `goal`
[INFO] [stdout]   --> src/main.rs:45:35
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn make_selection(roll: DiceRoll, goal: u16) -> Option<DiceRoll> {
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_goal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_selection` is never used
[INFO] [stdout]   --> src/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn make_selection(roll: DiceRoll, goal: u16) -> Option<DiceRoll> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.83s
[INFO] running `Command { std: "docker" "inspect" "3e021ed43742ec803ab55efdbf80d8249bf751ea845b6faa571cf214ea6abfc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e021ed43742ec803ab55efdbf80d8249bf751ea845b6faa571cf214ea6abfc2", kill_on_drop: false }`
[INFO] [stdout] 3e021ed43742ec803ab55efdbf80d8249bf751ea845b6faa571cf214ea6abfc2