[INFO] fetching crate mathkid 0.4.0...
[INFO] testing mathkid-0.4.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate mathkid 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mathkid 0.4.0
[INFO] finished tweaking crates.io crate mathkid 0.4.0
[INFO] tweaked toml for crates.io crate mathkid 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mathkid 0.4.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mathkid 0.4.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52c251959e9d56c79c9b8cceafa43b42fc2621ffaa8f41a0c8bdb683316893cb
[INFO] running `Command { std: "docker" "start" "-a" "52c251959e9d56c79c9b8cceafa43b42fc2621ffaa8f41a0c8bdb683316893cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52c251959e9d56c79c9b8cceafa43b42fc2621ffaa8f41a0c8bdb683316893cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52c251959e9d56c79c9b8cceafa43b42fc2621ffaa8f41a0c8bdb683316893cb", kill_on_drop: false }`
[INFO] [stdout] 52c251959e9d56c79c9b8cceafa43b42fc2621ffaa8f41a0c8bdb683316893cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b556d721026066e67e50967d4694a7fac71f4f0b4f9b0927b5db62935d75a2c
[INFO] running `Command { std: "docker" "start" "-a" "2b556d721026066e67e50967d4694a7fac71f4f0b4f9b0927b5db62935d75a2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.100
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling textwrap v0.15.1
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling tinyrand v0.5.0
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling unidecode v0.3.0
[INFO] [stderr]    Compiling tinyrand-std v0.5.0
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]    Compiling clap v3.2.22
[INFO] [stderr]    Compiling mathkid v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.23s
[INFO] running `Command { std: "docker" "inspect" "2b556d721026066e67e50967d4694a7fac71f4f0b4f9b0927b5db62935d75a2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b556d721026066e67e50967d4694a7fac71f4f0b4f9b0927b5db62935d75a2c", kill_on_drop: false }`
[INFO] [stdout] 2b556d721026066e67e50967d4694a7fac71f4f0b4f9b0927b5db62935d75a2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e764a29aea278f9aa192c3f51127f78faf7951dc8108ec81406e4ff540b157e
[INFO] running `Command { std: "docker" "start" "-a" "7e764a29aea278f9aa192c3f51127f78faf7951dc8108ec81406e4ff540b157e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinyrand-alloc v0.5.0
[INFO] [stderr]    Compiling mathkid v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "7e764a29aea278f9aa192c3f51127f78faf7951dc8108ec81406e4ff540b157e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e764a29aea278f9aa192c3f51127f78faf7951dc8108ec81406e4ff540b157e", kill_on_drop: false }`
[INFO] [stdout] 7e764a29aea278f9aa192c3f51127f78faf7951dc8108ec81406e4ff540b157e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fef0fd43768cbfe2c81ae257e2220010dcd0be6456a02dfda660aafd1f5cf7bc
[INFO] running `Command { std: "docker" "start" "-a" "fef0fd43768cbfe2c81ae257e2220010dcd0be6456a02dfda660aafd1f5cf7bc", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mathkid-59cc4d2c486dd49c)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test profile::tests::profile_to_json ... ok
[INFO] [stdout] test syllabus::tests::syllabus_get_topic_names ... ok
[INFO] [stdout] test topic::addition::tests::display_ask_answer ... ok
[INFO] [stdout] test syllabus::tests::presets ... ok
[INFO] [stdout] test profile::tests::test_sanitised_first_name ... ok
[INFO] [stdout] test profile::tests::profile_implements_debug ... ok
[INFO] [stdout] test topic::subtraction::tests::display_ask_answer_negative ... ok
[INFO] [stdout] test topic::addition::tests::name ... ok
[INFO] [stdout] test topic::addition::tests::invalid_config ... ok
[INFO] [stdout] test topic::subtraction::tests::display_ask_answer_nonnegative ... ok
[INFO] [stdout] test topic::subtraction::tests::name ... ok
[INFO] [stdout] test topic::subtraction::tests::presets ... ok
[INFO] [stdout] test syllabus::tests::course_get_topic_names ... ok
[INFO] [stdout] test topic::addition::tests::presets ... ok
[INFO] [stdout] test topic::subtraction::tests::invalid_config ... ok
[INFO] [stdout] test topic::tests::outcome_implements_debug ... ok
[INFO] [stdout] test profile::tests::profile_from_json ... ok
[INFO] [stdout] test topic::subtraction::tests::question_with_zero_nonnegative ... ok
[INFO] [stderr]      Running unittests src/bin/mathkid.rs (/opt/rustwide/target/debug/deps/mathkid-22c9da034aa0e917)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mathkid
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[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] [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] running `Command { std: "docker" "inspect" "fef0fd43768cbfe2c81ae257e2220010dcd0be6456a02dfda660aafd1f5cf7bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fef0fd43768cbfe2c81ae257e2220010dcd0be6456a02dfda660aafd1f5cf7bc", kill_on_drop: false }`
[INFO] [stdout] fef0fd43768cbfe2c81ae257e2220010dcd0be6456a02dfda660aafd1f5cf7bc