[INFO] cloning repository https://github.com/zachschickler/fun-math
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zachschickler/fun-math" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzachschickler%2Ffun-math", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzachschickler%2Ffun-math'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d5e93f42d390b3084a7644f92ee3869c1fc7f4d
[INFO] building zachschickler/fun-math against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzachschickler%2Ffun-math" "/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/zachschickler/fun-math on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zachschickler/fun-math
[INFO] finished tweaking git repo https://github.com/zachschickler/fun-math
[INFO] tweaked toml for git repo https://github.com/zachschickler/fun-math written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zachschickler/fun-math 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-width v0.1.9
[INFO] [stderr]   Downloaded quote v1.0.10
[INFO] [stderr]   Downloaded textwrap v0.11.0
[INFO] [stderr]   Downloaded structopt-derive v0.4.18
[INFO] [stderr]   Downloaded strsim v0.8.0
[INFO] [stderr]   Downloaded structopt v0.3.25
[INFO] [stderr]   Downloaded proc-macro2 v1.0.32
[INFO] [stderr]   Downloaded clap v2.33.3
[INFO] [stderr]   Downloaded syn v1.0.81
[INFO] [stderr]   Downloaded libc v0.2.106
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f177e019083853d77b7210eb3593a4dd07f6a46c9331d3b94263e2e83dcbef0
[INFO] running `Command { std: "docker" "start" "-a" "8f177e019083853d77b7210eb3593a4dd07f6a46c9331d3b94263e2e83dcbef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f177e019083853d77b7210eb3593a4dd07f6a46c9331d3b94263e2e83dcbef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f177e019083853d77b7210eb3593a4dd07f6a46c9331d3b94263e2e83dcbef0", kill_on_drop: false }`
[INFO] [stdout] 8f177e019083853d77b7210eb3593a4dd07f6a46c9331d3b94263e2e83dcbef0
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da6bdcf03ad1e70ab9773ba70b8f48538ff286881a44fbd33a6aeaf09e7cb5c0
[INFO] running `Command { std: "docker" "start" "-a" "da6bdcf03ad1e70ab9773ba70b8f48538ff286881a44fbd33a6aeaf09e7cb5c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.25
[INFO] [stderr]    Compiling fun-math v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         _ => {
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Command::Pattern { pattern, path } => {
[INFO] [stdout]    |         ---------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 46 |         Command::Hamming { path } => {
[INFO] [stdout]    |         ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 49 |         _ => {
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `debug` is never read
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct Cli {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 9  |     #[structopt(short, long)]
[INFO] [stdout] 10 |     debug: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cli` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.40s
[INFO] running `Command { std: "docker" "inspect" "da6bdcf03ad1e70ab9773ba70b8f48538ff286881a44fbd33a6aeaf09e7cb5c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da6bdcf03ad1e70ab9773ba70b8f48538ff286881a44fbd33a6aeaf09e7cb5c0", kill_on_drop: false }`
[INFO] [stdout] da6bdcf03ad1e70ab9773ba70b8f48538ff286881a44fbd33a6aeaf09e7cb5c0
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e662c71ef58a67e0a709384e47146025d1203e0e369243920e3a97888d8994a6
[INFO] running `Command { std: "docker" "start" "-a" "e662c71ef58a67e0a709384e47146025d1203e0e369243920e3a97888d8994a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling fun-math v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         _ => {
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Command::Pattern { pattern, path } => {
[INFO] [stdout]    |         ---------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 46 |         Command::Hamming { path } => {
[INFO] [stdout]    |         ------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 49 |         _ => {
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `debug` is never read
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct Cli {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 9  |     #[structopt(short, long)]
[INFO] [stdout] 10 |     debug: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cli` 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "e662c71ef58a67e0a709384e47146025d1203e0e369243920e3a97888d8994a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e662c71ef58a67e0a709384e47146025d1203e0e369243920e3a97888d8994a6", kill_on_drop: false }`
[INFO] [stdout] e662c71ef58a67e0a709384e47146025d1203e0e369243920e3a97888d8994a6