[INFO] fetching crate vmks-exam-generator 0.1.4...
[INFO] testing vmks-exam-generator-0.1.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate vmks-exam-generator 0.1.4 into /workspace/builds/worker-110/source
[INFO] validating manifest of crates.io crate vmks-exam-generator 0.1.4 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vmks-exam-generator 0.1.4
[INFO] finished tweaking crates.io crate vmks-exam-generator 0.1.4
[INFO] tweaked toml for crates.io crate vmks-exam-generator 0.1.4 written to /workspace/builds/worker-110/source/Cargo.toml
[INFO] crate crates.io crate vmks-exam-generator 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79f86fbfb140ca8647315c8e7f990297756fde5c53fa3e998b8db9cb852d87c4
[INFO] running `Command { std: "docker" "start" "-a" "79f86fbfb140ca8647315c8e7f990297756fde5c53fa3e998b8db9cb852d87c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79f86fbfb140ca8647315c8e7f990297756fde5c53fa3e998b8db9cb852d87c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f86fbfb140ca8647315c8e7f990297756fde5c53fa3e998b8db9cb852d87c4", kill_on_drop: false }`
[INFO] [stdout] 79f86fbfb140ca8647315c8e7f990297756fde5c53fa3e998b8db9cb852d87c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3dafce2f98b69011e93363f3a4d38e68b939b6fbada244694fd204e9656ce2cc
[INFO] running `Command { std: "docker" "start" "-a" "3dafce2f98b69011e93363f3a4d38e68b939b6fbada244694fd204e9656ce2cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling vmks-exam-generator v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.95s
[INFO] running `Command { std: "docker" "inspect" "3dafce2f98b69011e93363f3a4d38e68b939b6fbada244694fd204e9656ce2cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dafce2f98b69011e93363f3a4d38e68b939b6fbada244694fd204e9656ce2cc", kill_on_drop: false }`
[INFO] [stdout] 3dafce2f98b69011e93363f3a4d38e68b939b6fbada244694fd204e9656ce2cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bb5b0d56b9f5471064b9eea2486511229cdabecbed3757196fdec714d8c1f62
[INFO] running `Command { std: "docker" "start" "-a" "6bb5b0d56b9f5471064b9eea2486511229cdabecbed3757196fdec714d8c1f62", kill_on_drop: false }`
[INFO] [stderr]    Compiling vmks-exam-generator v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "6bb5b0d56b9f5471064b9eea2486511229cdabecbed3757196fdec714d8c1f62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bb5b0d56b9f5471064b9eea2486511229cdabecbed3757196fdec714d8c1f62", kill_on_drop: false }`
[INFO] [stdout] 6bb5b0d56b9f5471064b9eea2486511229cdabecbed3757196fdec714d8c1f62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-110/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 83da545ef7e519213eb97e4e500da5858e6d43ddf6bdde06ef609b2887a5e45a
[INFO] running `Command { std: "docker" "start" "-a" "83da545ef7e519213eb97e4e500da5858e6d43ddf6bdde06ef609b2887a5e45a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vmks_exam_generator-ec21396978943385)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vmks_exam_generator-16ceb0a5ccf3e376)
[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 vmks-exam-generator
[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" "83da545ef7e519213eb97e4e500da5858e6d43ddf6bdde06ef609b2887a5e45a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83da545ef7e519213eb97e4e500da5858e6d43ddf6bdde06ef609b2887a5e45a", kill_on_drop: false }`
[INFO] [stdout] 83da545ef7e519213eb97e4e500da5858e6d43ddf6bdde06ef609b2887a5e45a