[INFO] cloning repository https://github.com/perlindgren/myrange
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/perlindgren/myrange" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Fmyrange", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Fmyrange'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 460e57f8be24ad4ed0f448e806d91766dd590021
[INFO] checking perlindgren/myrange/460e57f8be24ad4ed0f448e806d91766dd590021 against master#42f4793e5a514858221b07ac379029d90353913e for pr-148952
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Fmyrange" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/perlindgren/myrange
[INFO] finished tweaking git repo https://github.com/perlindgren/myrange
[INFO] tweaked toml for git repo https://github.com/perlindgren/myrange written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/perlindgren/myrange on toolchain 42f4793e5a514858221b07ac379029d90353913e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/perlindgren/myrange 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" "+42f4793e5a514858221b07ac379029d90353913e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82ba50794c925eccd9747c5f0fb5fbe6619fca15cd2bc72b465aeb78340cd219
[INFO] running `Command { std: "docker" "start" "-a" "82ba50794c925eccd9747c5f0fb5fbe6619fca15cd2bc72b465aeb78340cd219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82ba50794c925eccd9747c5f0fb5fbe6619fca15cd2bc72b465aeb78340cd219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82ba50794c925eccd9747c5f0fb5fbe6619fca15cd2bc72b465aeb78340cd219", kill_on_drop: false }`
[INFO] [stdout] 82ba50794c925eccd9747c5f0fb5fbe6619fca15cd2bc72b465aeb78340cd219
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0249ee1fe5bd4873f2fb4d394f842df7c511be0a8ffd59e98b5d105e771ae91b
[INFO] running `Command { std: "docker" "start" "-a" "0249ee1fe5bd4873f2fb4d394f842df7c511be0a8ffd59e98b5d105e771ae91b", kill_on_drop: false }`
[INFO] [stderr]     Checking myrange v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `r3`
[INFO] [stdout]   --> src/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let r3 = r2 + r1;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r3`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r4`
[INFO] [stdout]   --> src/main.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let r4 = MyRange::<i8>::new(-1, 20, 3);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ru8`
[INFO] [stdout]   --> src/main.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let ru8: MyRange<u8> = r1.to();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ru8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r3`
[INFO] [stdout]   --> src/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let r3 = r2 + r1;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r3`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r4`
[INFO] [stdout]   --> src/main.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let r4 = MyRange::<i8>::new(-1, 20, 3);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ru8`
[INFO] [stdout]   --> src/main.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let ru8: MyRange<u8> = r1.to();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ru8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "0249ee1fe5bd4873f2fb4d394f842df7c511be0a8ffd59e98b5d105e771ae91b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0249ee1fe5bd4873f2fb4d394f842df7c511be0a8ffd59e98b5d105e771ae91b", kill_on_drop: false }`
[INFO] [stdout] 0249ee1fe5bd4873f2fb4d394f842df7c511be0a8ffd59e98b5d105e771ae91b