[INFO] cloning repository https://github.com/francisdev584/rust_101
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/francisdev584/rust_101" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancisdev584%2Frust_101", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancisdev584%2Frust_101'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99a625eb0b9e7724b2420cf0d2afbb7d19b02b4a
[INFO] checking francisdev584/rust_101 against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrancisdev584%2Frust_101" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/francisdev584/rust_101
[INFO] finished tweaking git repo https://github.com/francisdev584/rust_101
[INFO] tweaked toml for git repo https://github.com/francisdev584/rust_101 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/francisdev584/rust_101 on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/francisdev584/rust_101 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5bc15854b19ea7a8f4d29645a339761a264af241a68f4fe1581e868cba00b3e4
[INFO] running `Command { std: "docker" "start" "-a" "5bc15854b19ea7a8f4d29645a339761a264af241a68f4fe1581e868cba00b3e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bc15854b19ea7a8f4d29645a339761a264af241a68f4fe1581e868cba00b3e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc15854b19ea7a8f4d29645a339761a264af241a68f4fe1581e868cba00b3e4", kill_on_drop: false }`
[INFO] [stdout] 5bc15854b19ea7a8f4d29645a339761a264af241a68f4fe1581e868cba00b3e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a212fec15db576b496d9d6566eec56744652ceffca62601216df114581422fd
[INFO] running `Command { std: "docker" "start" "-a" "7a212fec15db576b496d9d6566eec56744652ceffca62601216df114581422fd", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_101 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `sub` is never used
[INFO] [stdout]  --> src/bin/a2_arithmetic.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn sub(a: i32, b: i32)-> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `division` is never used
[INFO] [stdout]  --> src/bin/a2_arithmetic.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |  fn division(a: i32, b: i32)-> i32 {
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mult` is never used
[INFO] [stdout]   --> src/bin/a2_arithmetic.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |  fn mult(a: i32, b: i32)-> i32 {
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remain` is never used
[INFO] [stdout]   --> src/bin/a2_arithmetic.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |  fn remain(a: i32, b: i32)-> i32 {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Sweet` and `Fruity` are never constructed
[INFO] [stdout]  --> src/bin/a8_struct.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Flavor {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 2 |     Sparkling,
[INFO] [stdout] 3 |     Sweet,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 4 |     Fruity,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sub` is never used
[INFO] [stdout]  --> src/bin/a2_arithmetic.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn sub(a: i32, b: i32)-> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `division` is never used
[INFO] [stdout]  --> src/bin/a2_arithmetic.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |  fn division(a: i32, b: i32)-> i32 {
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mult` is never used
[INFO] [stdout]   --> src/bin/a2_arithmetic.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |  fn mult(a: i32, b: i32)-> i32 {
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remain` is never used
[INFO] [stdout]   --> src/bin/a2_arithmetic.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |  fn remain(a: i32, b: i32)-> i32 {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Sweet` and `Fruity` are never constructed
[INFO] [stdout]  --> src/bin/a8_struct.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Flavor {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 2 |     Sparkling,
[INFO] [stdout] 3 |     Sweet,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 4 |     Fruity,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Red`, `Blue`, and `Blank` are never constructed
[INFO] [stdout]  --> src/bin/a12_impl.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Color {
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 2 |     Red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 3 |     Blue,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     Green,
[INFO] [stdout] 5 |     Blank,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Red`, `Blue`, and `Blank` are never constructed
[INFO] [stdout]  --> src/bin/a12_impl.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Color {
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 2 |     Red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 3 |     Blue,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     Green,
[INFO] [stdout] 5 |     Blank,
[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 1.45s
[INFO] running `Command { std: "docker" "inspect" "7a212fec15db576b496d9d6566eec56744652ceffca62601216df114581422fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a212fec15db576b496d9d6566eec56744652ceffca62601216df114581422fd", kill_on_drop: false }`
[INFO] [stdout] 7a212fec15db576b496d9d6566eec56744652ceffca62601216df114581422fd
