[INFO] fetching crate grade_calculator 1.1.2...
[INFO] testing grade_calculator-1.1.2 against 1.79.0 for beta-1.80-4
[INFO] extracting crate grade_calculator 1.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate grade_calculator 1.1.2 on toolchain 1.79.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.79.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grade_calculator 1.1.2
[INFO] finished tweaking crates.io crate grade_calculator 1.1.2
[INFO] tweaked toml for crates.io crate grade_calculator 1.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate grade_calculator 1.1.2 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" "+1.79.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_threads v0.1.6
[INFO] [stderr]   Downloaded darling_macro v0.20.1
[INFO] [stderr]   Downloaded enum-map v2.5.0
[INFO] [stderr]   Downloaded signal-hook-mio v0.2.3
[INFO] [stderr]   Downloaded redox_syscall v0.2.16
[INFO] [stderr]   Downloaded lock_api v0.4.9
[INFO] [stderr]   Downloaded crossterm_winapi v0.9.0
[INFO] [stderr]   Downloaded syn v2.0.15
[INFO] [stderr]   Downloaded log v0.4.17
[INFO] [stderr]   Downloaded libc v0.2.143
[INFO] [stderr]   Downloaded num-complex v0.4.3
[INFO] [stderr]   Downloaded num-rational v0.4.1
[INFO] [stderr]   Downloaded serde v1.0.162
[INFO] [stderr]   Downloaded time v0.3.21
[INFO] [stderr]   Downloaded unicode-segmentation v1.10.1
[INFO] [stderr]   Downloaded cursive_core v0.3.7
[INFO] [stderr]   Downloaded smallvec v1.10.0
[INFO] [stderr]   Downloaded parking_lot_core v0.9.7
[INFO] [stderr]   Downloaded mio v0.8.6
[INFO] [stderr]   Downloaded crossterm v0.25.0
[INFO] [stderr]   Downloaded signal-hook v0.3.15
[INFO] [stderr]   Downloaded cursive v0.20.0
[INFO] [stderr]   Downloaded getrandom v0.2.9
[INFO] [stderr]   Downloaded once_cell v1.17.1
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.15
[INFO] [stderr]   Downloaded enum-map-derive v0.11.0
[INFO] [stderr]   Downloaded darling_core v0.20.1
[INFO] [stderr]   Downloaded darling v0.20.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded quote v1.0.26
[INFO] [stderr]   Downloaded unicode-ident v1.0.8
[INFO] [stderr]   Downloaded enumset_derive v0.7.0
[INFO] [stderr]   Downloaded enumset v1.0.13
[INFO] [stderr]   Downloaded owning_ref v0.4.1
[INFO] [stderr]   Downloaded xi-unicode v0.3.0
[INFO] [stderr]   Downloaded cursive-aligned-view v0.6.0
[INFO] [stderr]   Downloaded num-iter v0.1.43
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded itoa v1.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c83e04fb1eab3f2d5d39bea3b878c4449787250e7f240c2e2947139eb412b8c5
[INFO] running `Command { std: "docker" "start" "-a" "c83e04fb1eab3f2d5d39bea3b878c4449787250e7f240c2e2947139eb412b8c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c83e04fb1eab3f2d5d39bea3b878c4449787250e7f240c2e2947139eb412b8c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c83e04fb1eab3f2d5d39bea3b878c4449787250e7f240c2e2947139eb412b8c5", kill_on_drop: false }`
[INFO] [stdout] c83e04fb1eab3f2d5d39bea3b878c4449787250e7f240c2e2947139eb412b8c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa93a82fd6832c5a14c84bb9ebc161098847420e2a37607b6e12dbcd13b54524
[INFO] running `Command { std: "docker" "start" "-a" "aa93a82fd6832c5a14c84bb9ebc161098847420e2a37607b6e12dbcd13b54524", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling libc v0.2.143
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling xi-unicode v0.3.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling time v0.3.21
[INFO] [stderr]    Compiling mio v0.8.6
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling num-complex v0.4.3
[INFO] [stderr]    Compiling signal-hook-mio v0.2.3
[INFO] [stderr]    Compiling crossterm v0.25.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling enum-map-derive v0.11.0
[INFO] [stderr]    Compiling enum-map v2.5.0
[INFO] [stderr]    Compiling darling_core v0.20.1
[INFO] [stderr]    Compiling darling_macro v0.20.1
[INFO] [stderr]    Compiling darling v0.20.1
[INFO] [stderr]    Compiling enumset_derive v0.7.0
[INFO] [stderr]    Compiling enumset v1.0.13
[INFO] [stderr]    Compiling cursive_core v0.3.7
[INFO] [stderr]    Compiling cursive-aligned-view v0.6.0
[INFO] [stderr]    Compiling cursive v0.20.0
[INFO] [stderr]    Compiling grade_calculator v1.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.07s
[INFO] running `Command { std: "docker" "inspect" "aa93a82fd6832c5a14c84bb9ebc161098847420e2a37607b6e12dbcd13b54524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa93a82fd6832c5a14c84bb9ebc161098847420e2a37607b6e12dbcd13b54524", kill_on_drop: false }`
[INFO] [stdout] aa93a82fd6832c5a14c84bb9ebc161098847420e2a37607b6e12dbcd13b54524
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d666e92c4e637c500092d38e4c1856e430b06ea5683be0ba56f012f3f7878a0
[INFO] running `Command { std: "docker" "start" "-a" "4d666e92c4e637c500092d38e4c1856e430b06ea5683be0ba56f012f3f7878a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling grade_calculator v1.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "4d666e92c4e637c500092d38e4c1856e430b06ea5683be0ba56f012f3f7878a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d666e92c4e637c500092d38e4c1856e430b06ea5683be0ba56f012f3f7878a0", kill_on_drop: false }`
[INFO] [stdout] 4d666e92c4e637c500092d38e4c1856e430b06ea5683be0ba56f012f3f7878a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 54c6b7fe619c425c829055ae49f404534cca0a947403414efa124b6cf8215e5f
[INFO] running `Command { std: "docker" "start" "-a" "54c6b7fe619c425c829055ae49f404534cca0a947403414efa124b6cf8215e5f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/grade_calculator-aff840d635474508)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/grade_calculator-b61608cfddb8f218)
[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 grade_calculator
[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" "54c6b7fe619c425c829055ae49f404534cca0a947403414efa124b6cf8215e5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54c6b7fe619c425c829055ae49f404534cca0a947403414efa124b6cf8215e5f", kill_on_drop: false }`
[INFO] [stdout] 54c6b7fe619c425c829055ae49f404534cca0a947403414efa124b6cf8215e5f