[INFO] fetching crate mudders 0.0.4...
[INFO] testing mudders-0.0.4 against 1.90.0 for beta-1.91-3
[INFO] extracting crate mudders 0.0.4 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate mudders 0.0.4
[INFO] finished tweaking crates.io crate mudders 0.0.4
[INFO] tweaked toml for crates.io crate mudders 0.0.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mudders 0.0.4 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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" "+1.90.0" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9cbfee3c0c0b0ef2705054c77691e60e59f29e7f6703c12447ca38d0110eaaa9
[INFO] running `Command { std: "docker" "start" "-a" "9cbfee3c0c0b0ef2705054c77691e60e59f29e7f6703c12447ca38d0110eaaa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cbfee3c0c0b0ef2705054c77691e60e59f29e7f6703c12447ca38d0110eaaa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cbfee3c0c0b0ef2705054c77691e60e59f29e7f6703c12447ca38d0110eaaa9", kill_on_drop: false }`
[INFO] [stdout] 9cbfee3c0c0b0ef2705054c77691e60e59f29e7f6703c12447ca38d0110eaaa9
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c6458aaa551620c2065ca3420e03eb6477b341d5b84a1364b6ab47a65e9ea3a
[INFO] running `Command { std: "docker" "start" "-a" "8c6458aaa551620c2065ca3420e03eb6477b341d5b84a1364b6ab47a65e9ea3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling mudders v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "8c6458aaa551620c2065ca3420e03eb6477b341d5b84a1364b6ab47a65e9ea3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c6458aaa551620c2065ca3420e03eb6477b341d5b84a1364b6ab47a65e9ea3a", kill_on_drop: false }`
[INFO] [stdout] 8c6458aaa551620c2065ca3420e03eb6477b341d5b84a1364b6ab47a65e9ea3a
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73034517e0eaf87ba2f34f474e8a5e31d98639655cc4e6c2d9698e3b71f3f9fa
[INFO] running `Command { std: "docker" "start" "-a" "73034517e0eaf87ba2f34f474e8a5e31d98639655cc4e6c2d9698e3b71f3f9fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling mudders v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "73034517e0eaf87ba2f34f474e8a5e31d98639655cc4e6c2d9698e3b71f3f9fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73034517e0eaf87ba2f34f474e8a5e31d98639655cc4e6c2d9698e3b71f3f9fa", kill_on_drop: false }`
[INFO] [stdout] 73034517e0eaf87ba2f34f474e8a5e31d98639655cc4e6c2d9698e3b71f3f9fa
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 236b452828d62a4d69a4bfa2979bbfcb8c4f1ff83223a495a611bf5e56aee92f
[INFO] running `Command { std: "docker" "start" "-a" "236b452828d62a4d69a4bfa2979bbfcb8c4f1ff83223a495a611bf5e56aee92f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mudders-2c52508a45613126)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test tests::distance_between_first_chars_correct ... ok
[INFO] [stdout] test tests::empty_end ... ok
[INFO] [stdout] test tests::equal_strings_error ... ok
[INFO] [stdout] test tests::empty_start ... ok
[INFO] [stdout] test tests::differing_input_lengths ... ok
[INFO] [stdout] test tests::only_amount ... ok
[INFO] [stdout] test tests::invalid_tables_error ... ok
[INFO] [stdout] test tests::outputs_more_or_less_match_mudderjs ... ok
[INFO] [stdout] test tests::traverse_custom ... ok
[INFO] [stdout] test tests::reasonable_values ... ok
[INFO] [stdout] test tests::traverse_alphabet ... ok
[INFO] [stdout] test tests::unknown_chars_error ... ok
[INFO] [stdout] test tests::values_sorting_correct ... ok
[INFO] [stdout] test tests::valid_tables_work ... ok
[INFO] [stdout] test tests::generate_after_z ... ok
[INFO] [stdout] test tests::values_consistently_between_start_and_end ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mudders
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - SymbolTable::mudder (line 110) ... ok
[INFO] [stdout] test src/error.rs - error::ensure (line 9) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/error.rs - error::ensure (line 9) stdout ----
[INFO] [stdout] error: cannot find macro `ensure` in this scope
[INFO] [stdout]  --> src/error.rs:11:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ensure! { i > 5, "i may not be less than 5" }
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/error.rs - error::ensure (line 9)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.49s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "236b452828d62a4d69a4bfa2979bbfcb8c4f1ff83223a495a611bf5e56aee92f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "236b452828d62a4d69a4bfa2979bbfcb8c4f1ff83223a495a611bf5e56aee92f", kill_on_drop: false }`
[INFO] [stdout] 236b452828d62a4d69a4bfa2979bbfcb8c4f1ff83223a495a611bf5e56aee92f