[INFO] fetching crate gradecalculators 0.1.2...
[INFO] testing gradecalculators-0.1.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate gradecalculators 0.1.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate gradecalculators 0.1.2
[INFO] finished tweaking crates.io crate gradecalculators 0.1.2
[INFO] tweaked toml for crates.io crate gradecalculators 0.1.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gradecalculators 0.1.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b127af42be075008fabc874a6e9b3982f16b6ad69c33ba223e8d534a58c03b2c
[INFO] running `Command { std: "docker" "start" "-a" "b127af42be075008fabc874a6e9b3982f16b6ad69c33ba223e8d534a58c03b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b127af42be075008fabc874a6e9b3982f16b6ad69c33ba223e8d534a58c03b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b127af42be075008fabc874a6e9b3982f16b6ad69c33ba223e8d534a58c03b2c", kill_on_drop: false }`
[INFO] [stdout] b127af42be075008fabc874a6e9b3982f16b6ad69c33ba223e8d534a58c03b2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6342cd5b9552ac90d020c4373ca3482162f25ad68471947f777fd38ed77369ce
[INFO] running `Command { std: "docker" "start" "-a" "6342cd5b9552ac90d020c4373ca3482162f25ad68471947f777fd38ed77369ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling gradecalculators v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "6342cd5b9552ac90d020c4373ca3482162f25ad68471947f777fd38ed77369ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6342cd5b9552ac90d020c4373ca3482162f25ad68471947f777fd38ed77369ce", kill_on_drop: false }`
[INFO] [stdout] 6342cd5b9552ac90d020c4373ca3482162f25ad68471947f777fd38ed77369ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4665398395dd03699d01f096e87e67b24986d6a1fac7fb8a870ed75ae9c561ef
[INFO] running `Command { std: "docker" "start" "-a" "4665398395dd03699d01f096e87e67b24986d6a1fac7fb8a870ed75ae9c561ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling gradecalculators v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "4665398395dd03699d01f096e87e67b24986d6a1fac7fb8a870ed75ae9c561ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4665398395dd03699d01f096e87e67b24986d6a1fac7fb8a870ed75ae9c561ef", kill_on_drop: false }`
[INFO] [stdout] 4665398395dd03699d01f096e87e67b24986d6a1fac7fb8a870ed75ae9c561ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e25cb095bc813f07392c9eca2ac1a15baea9f9c43cf8413e65b2462f58493be4
[INFO] running `Command { std: "docker" "start" "-a" "e25cb095bc813f07392c9eca2ac1a15baea9f9c43cf8413e65b2462f58493be4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/gradecalculators-f18a2467a4022b9a)
[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]    Doc-tests gradecalculators
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 31) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 38) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 48) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 22) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 31) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `,`
[INFO] [stdout]  --> src/lib.rs:32:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | Quiz, 90, 20
[INFO] [stdout]   |     ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 38) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `,`
[INFO] [stdout]  --> src/lib.rs:39:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | Quiz, A, 20
[INFO] [stdout]   |     ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 48) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `current`
[INFO] [stdout]  --> src/lib.rs:49:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | Your current grade is 91%(A)
[INFO] [stdout]   |      ^^^^^^^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 22) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `,`
[INFO] [stdout]  --> src/lib.rs:23:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | Quiz, 90, 20
[INFO] [stdout]   |     ^ expected one of `!` or `::`
[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/lib.rs - (line 22)
[INFO] [stdout]     src/lib.rs - (line 31)
[INFO] [stdout]     src/lib.rs - (line 38)
[INFO] [stdout]     src/lib.rs - (line 48)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "e25cb095bc813f07392c9eca2ac1a15baea9f9c43cf8413e65b2462f58493be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e25cb095bc813f07392c9eca2ac1a15baea9f9c43cf8413e65b2462f58493be4", kill_on_drop: false }`
[INFO] [stdout] e25cb095bc813f07392c9eca2ac1a15baea9f9c43cf8413e65b2462f58493be4