[INFO] cloning repository https://github.com/ravi1395/rollcall
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ravi1395/rollcall" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fravi1395%2Frollcall", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fravi1395%2Frollcall'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86148f45c061bfb924b5d0adff4fb1faca869d83
[INFO] checking ravi1395/rollcall against 0cefa27fe3deee26fc98ee44249406358d9f0d26 for pr-164789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fravi1395%2Frollcall" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ravi1395/rollcall
[INFO] finished tweaking git repo https://github.com/ravi1395/rollcall
[INFO] tweaked toml for git repo https://github.com/ravi1395/rollcall written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ravi1395/rollcall on toolchain 0cefa27fe3deee26fc98ee44249406358d9f0d26
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0cefa27fe3deee26fc98ee44249406358d9f0d26" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ravi1395/rollcall 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" "+0cefa27fe3deee26fc98ee44249406358d9f0d26" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 13f1f3b83bac9eb52eb316dc816123ff6fd58ea4d61f1b12a35d7632b44c619c
[INFO] running `Command { std: "docker" "start" "13f1f3b83bac9eb52eb316dc816123ff6fd58ea4d61f1b12a35d7632b44c619c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13f1f3b83bac9eb52eb316dc816123ff6fd58ea4d61f1b12a35d7632b44c619c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "13f1f3b83bac9eb52eb316dc816123ff6fd58ea4d61f1b12a35d7632b44c619c" "/opt/rustwide/cargo-home/bin/cargo" "+0cefa27fe3deee26fc98ee44249406358d9f0d26" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13f1f3b83bac9eb52eb316dc816123ff6fd58ea4d61f1b12a35d7632b44c619c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "13f1f3b83bac9eb52eb316dc816123ff6fd58ea4d61f1b12a35d7632b44c619c" "/opt/rustwide/cargo-home/bin/cargo" "+0cefa27fe3deee26fc98ee44249406358d9f0d26" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused `test::ExitCode` that must be used
[INFO] [stdout]     --> crates/rollcall-cli/src/output.rs:1036:9
[INFO] [stdout]      |
[INFO] [stdout] 1036 |         status(&w.ctx, outcome, &w.root, json, &mut out);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1036 |         let _ = status(&w.ctx, outcome, &w.root, json, &mut out);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `test::ExitCode` that must be used
[INFO] [stdout]     --> crates/rollcall-cli/src/output.rs:1054:9
[INFO] [stdout]      |
[INFO] [stdout] 1054 |         doctor(&w.ctx, outcome, &w.root, json, &mut out);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1054 |         let _ = doctor(&w.ctx, outcome, &w.root, json, &mut out);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `test::ExitCode` that must be used
[INFO] [stdout]     --> crates/rollcall-cli/src/output.rs:1530:9
[INFO] [stdout]      |
[INFO] [stdout] 1530 | /         scan_summary(
[INFO] [stdout] 1531 | |             &w.ctx,
[INFO] [stdout] 1532 | |             &outcome,
[INFO] [stdout] 1533 | |             &w.root,
[INFO] [stdout] 1534 | |             Duration::from_millis(1234),
[INFO] [stdout] 1535 | |             &mut err,
[INFO] [stdout] 1536 | |         );
[INFO] [stdout]      | |_________^
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1530 |         let _ = scan_summary(
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `test::ExitCode` that must be used
[INFO] [stdout]     --> crates/rollcall-cli/src/output.rs:1557:9
[INFO] [stdout]      |
[INFO] [stdout] 1557 |         scan_summary(&w.ctx, &outcome, &w.root, Duration::ZERO, &mut err);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1557 |         let _ = scan_summary(&w.ctx, &outcome, &w.root, Duration::ZERO, &mut err);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "13f1f3b83bac9eb52eb316dc816123ff6fd58ea4d61f1b12a35d7632b44c619c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13f1f3b83bac9eb52eb316dc816123ff6fd58ea4d61f1b12a35d7632b44c619c", kill_on_drop: false }`
[INFO] [stdout] 13f1f3b83bac9eb52eb316dc816123ff6fd58ea4d61f1b12a35d7632b44c619c