[INFO] cloning repository https://github.com/sh4062/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sh4062/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsh4062%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsh4062%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 772680140f914505d6f695f54738fd4f85a94ae3
[INFO] checking sh4062/rust-learning against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsh4062%2Frust-learning" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sh4062/rust-learning
[INFO] finished tweaking git repo https://github.com/sh4062/rust-learning
[INFO] tweaked toml for git repo https://github.com/sh4062/rust-learning written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sh4062/rust-learning on toolchain b047d5f4496a7526d91d0dddea494c05853f2a7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sh4062/rust-learning 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" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb65bca4bf13a25f23b9a131641b8fb452281c84aae901a1555f63874c966316
[INFO] running `Command { std: "docker" "start" "-a" "bb65bca4bf13a25f23b9a131641b8fb452281c84aae901a1555f63874c966316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb65bca4bf13a25f23b9a131641b8fb452281c84aae901a1555f63874c966316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb65bca4bf13a25f23b9a131641b8fb452281c84aae901a1555f63874c966316", kill_on_drop: false }`
[INFO] [stdout] bb65bca4bf13a25f23b9a131641b8fb452281c84aae901a1555f63874c966316
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3db705596e95673769bf5c833e8aea1ca01642f8d83208bd977431fefaae484c
[INFO] running `Command { std: "docker" "start" "-a" "3db705596e95673769bf5c833e8aea1ca01642f8d83208bd977431fefaae484c", kill_on_drop: false }`
[INFO] [stderr]     Checking rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/func/func1.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 |     R(i16),
[INFO] [stdout]    |     - ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 23 -     R(i16),
[INFO] [stdout] 23 +     R(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `G` and `B` are never constructed
[INFO] [stdout]   --> src/func/func1.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum Color {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 23 |     R(i16),
[INFO] [stdout] 24 |     G(i16),
[INFO] [stdout]    |     ^
[INFO] [stdout] 25 |     B(i16),
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `closure` is never used
[INFO] [stdout]  --> src/func/func2.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn closure() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `closure2` is never used
[INFO] [stdout]   --> src/func/func2.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn closure2() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/func/func1.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 |     R(i16),
[INFO] [stdout]    |     - ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 23 -     R(i16),
[INFO] [stdout] 23 +     R(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `G` and `B` are never constructed
[INFO] [stdout]   --> src/func/func1.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum Color {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 23 |     R(i16),
[INFO] [stdout] 24 |     G(i16),
[INFO] [stdout]    |     ^
[INFO] [stdout] 25 |     B(i16),
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "3db705596e95673769bf5c833e8aea1ca01642f8d83208bd977431fefaae484c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3db705596e95673769bf5c833e8aea1ca01642f8d83208bd977431fefaae484c", kill_on_drop: false }`
[INFO] [stdout] 3db705596e95673769bf5c833e8aea1ca01642f8d83208bd977431fefaae484c