[INFO] fetching crate develop_debug 0.6.1...
[INFO] testing develop_debug-0.6.1 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate develop_debug 0.6.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate develop_debug 0.6.1
[INFO] finished tweaking crates.io crate develop_debug 0.6.1
[INFO] tweaked toml for crates.io crate develop_debug 0.6.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate develop_debug 0.6.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f
[INFO] running `Command { std: "docker" "start" "a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f", 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" "a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling develop_debug v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: develop_debug@0.6.1: Failed to write './README.md'. Read-only file system (os error 30)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling develop_debug v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: develop_debug@0.6.1: Failed to write './README.md'. Read-only file system (os error 30)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> tests/how_to_use.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let x = "dear X";
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `say`
[INFO] [stdout]  --> tests/how_to_use.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let say = "hello world!";
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_say`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec`
[INFO] [stdout]   --> tests/how_to_use.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let vec = vec!["a", "b", "c"];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `map`
[INFO] [stdout]   --> tests/how_to_use.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let map = HashMap::from([("a", (Some("a"), "a")), ("b", (Some("b"), "b"))]);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `title2`
[INFO] [stdout]   --> tests/how_to_use.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let title2 = "balabala...";
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_title2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> tests/how_to_use.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let x = "dear X";
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `say`
[INFO] [stdout]   --> tests/how_to_use.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let say = "hello world!";
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_say`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec`
[INFO] [stdout]   --> tests/how_to_use.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let vec = vec!["a", "b", "c"];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `map`
[INFO] [stdout]   --> tests/how_to_use.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let map = HashMap::from([("a", (Some("a"), "a")), ("b", (Some("b"), "b"))]);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `title2`
[INFO] [stdout]   --> tests/how_to_use.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let title2 = "balabala...";
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_title2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling develop_debug v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: develop_debug@0.6.1: Failed to write './README.md'. Read-only file system (os error 30)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]  --> tests/how_to_use.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let x = "dear X";
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `say`
[INFO] [stderr]  --> tests/how_to_use.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let say = "hello world!";
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_say`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vec`
[INFO] [stderr]   --> tests/how_to_use.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let vec = vec!["a", "b", "c"];
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `map`
[INFO] [stderr]   --> tests/how_to_use.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let map = HashMap::from([("a", (Some("a"), "a")), ("b", (Some("b"), "b"))]);
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `title2`
[INFO] [stderr]   --> tests/how_to_use.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let title2 = "balabala...";
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_title2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> tests/how_to_use.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let x = "dear X";
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `say`
[INFO] [stderr]   --> tests/how_to_use.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let say = "hello world!";
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_say`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vec`
[INFO] [stderr]   --> tests/how_to_use.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let vec = vec!["a", "b", "c"];
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `map`
[INFO] [stderr]   --> tests/how_to_use.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let map = HashMap::from([("a", (Some("a"), "a")), ("b", (Some("b"), "b"))]);
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `title2`
[INFO] [stderr]   --> tests/how_to_use.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let title2 = "balabala...";
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_title2`
[INFO] [stderr] 
[INFO] [stderr] warning: `develop_debug` (test "how_to_use") generated 10 warnings (run `cargo fix --test "how_to_use" -p develop_debug` to apply 10 suggestions)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.52s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/develop_debug/2da2bc71d0d2d4b5/out/develop_debug-2da2bc71d0d2d4b5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/how_to_use.rs (/opt/rustwide/target/release/build/develop_debug/fa15f0083e0e8e66/out/how_to_use-fa15f0083e0e8e66)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_output_range_control ... ok
[INFO] [stdout] test test_develop_debug_shortcut ... ok
[INFO] [stdout] test test_develop_debug ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests develop_debug
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - dd____show (line 142) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f", kill_on_drop: false }`
[INFO] [stdout] a11467955a866237275be7e8cc88080af1726a4d5a8c415bf630884be257588f
