[INFO] fetching crate problem_generator 0.3.1...
[INFO] checking problem_generator-0.3.1 against master#0f6e1ae67854c3c44726e8376144c16b465fe7c6 for pr-129392
[INFO] extracting crate problem_generator 0.3.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate problem_generator 0.3.1 on toolchain 0f6e1ae67854c3c44726e8376144c16b465fe7c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate problem_generator 0.3.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate problem_generator 0.3.1
[INFO] tweaked toml for crates.io crate problem_generator 0.3.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate problem_generator 0.3.1 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" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 609aaacee0aba31590213a2f78ede9ba07168d2d572c898eb886de1461c93157
[INFO] running `Command { std: "docker" "start" "-a" "609aaacee0aba31590213a2f78ede9ba07168d2d572c898eb886de1461c93157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "609aaacee0aba31590213a2f78ede9ba07168d2d572c898eb886de1461c93157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "609aaacee0aba31590213a2f78ede9ba07168d2d572c898eb886de1461c93157", kill_on_drop: false }`
[INFO] [stdout] 609aaacee0aba31590213a2f78ede9ba07168d2d572c898eb886de1461c93157
[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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2502f15ed8fe8a91418deabb6a689e4e0c9df9a26d5309a536d9f972cf153749
[INFO] running `Command { std: "docker" "start" "-a" "2502f15ed8fe8a91418deabb6a689e4e0c9df9a26d5309a536d9f972cf153749", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]     Checking ron v0.6.6
[INFO] [stderr]     Checking problem_generator v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.16s
[INFO] running `Command { std: "docker" "inspect" "2502f15ed8fe8a91418deabb6a689e4e0c9df9a26d5309a536d9f972cf153749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2502f15ed8fe8a91418deabb6a689e4e0c9df9a26d5309a536d9f972cf153749", kill_on_drop: false }`
[INFO] [stdout] 2502f15ed8fe8a91418deabb6a689e4e0c9df9a26d5309a536d9f972cf153749