[INFO] cloning repository https://github.com/guangie88/sum_count_files
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guangie88/sum_count_files" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguangie88%2Fsum_count_files", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguangie88%2Fsum_count_files'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a01732ad26c82b7179145a60ebbbaac9458e07ae
[INFO] checking guangie88/sum_count_files against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguangie88%2Fsum_count_files" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/guangie88/sum_count_files on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/guangie88/sum_count_files
[INFO] finished tweaking git repo https://github.com/guangie88/sum_count_files
[INFO] tweaked toml for git repo https://github.com/guangie88/sum_count_files written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/guangie88/sum_count_files 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple_logger v0.4.0
[INFO] [stderr]   Downloaded atty v0.2.3
[INFO] [stderr]   Downloaded structopt v0.1.5
[INFO] [stderr]   Downloaded redox_syscall v0.1.32
[INFO] [stderr]   Downloaded structopt-derive v0.1.5
[INFO] [stderr]   Downloaded cargo_metadata v0.2.3
[INFO] [stderr]   Downloaded backtrace v0.3.4
[INFO] [stderr]   Downloaded if_chain v0.1.2
[INFO] [stderr]   Downloaded either v1.4.0
[INFO] [stderr]   Downloaded unicode-normalization v0.1.5
[INFO] [stderr]   Downloaded idna v0.1.4
[INFO] [stderr]   Downloaded clippy_lints v0.0.175
[INFO] [stderr]   Downloaded regex v0.2.3
[INFO] [stderr]   Downloaded backtrace-sys v0.1.16
[INFO] [stderr]   Downloaded itertools v0.6.5
[INFO] [stderr]   Downloaded getopts v0.2.15
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.15
[INFO] [stderr]   Downloaded toml v0.4.5
[INFO] [stderr]   Downloaded url v1.6.0
[INFO] [stderr]   Downloaded aho-corasick v0.6.4
[INFO] [stderr]   Downloaded lazy_static v1.0.0
[INFO] [stderr]   Downloaded clippy v0.0.175
[INFO] [stderr]   Downloaded dbghelp-sys v0.2.0
[INFO] [stderr]   Downloaded failure v0.1.1
[INFO] [stderr]   Downloaded num-integer v0.1.35
[INFO] [stderr]   Downloaded num v0.1.41
[INFO] [stderr]   Downloaded chrono v0.3.0
[INFO] [stderr]   Downloaded crossbeam v0.2.10
[INFO] [stderr]   Downloaded cc v1.0.3
[INFO] [stderr]   Downloaded flate2 v0.2.20
[INFO] [stderr]   Downloaded serde_json v1.0.8
[INFO] [stderr]   Downloaded serde v1.0.24
[INFO] [stderr]   Downloaded libc v0.2.34
[INFO] [stderr]   Downloaded rustc-demangle v0.1.5
[INFO] [stderr]   Downloaded synstructure v0.6.1
[INFO] [stderr]   Downloaded failure_derive v0.1.1
[INFO] [stderr]   Downloaded miniz-sys v0.1.10
[INFO] [stderr]   Downloaded humantime v1.0.0
[INFO] [stderr]   Downloaded serde-value v0.5.1
[INFO] [stderr]   Downloaded serde_derive_internals v0.18.0
[INFO] [stderr]   Downloaded serde_derive v1.0.24
[INFO] [stderr]   Downloaded dtoa v0.4.2
[INFO] [stderr]   Downloaded itoa v0.3.4
[INFO] [stderr]   Downloaded num-traits v0.1.41
[INFO] [stderr]   Downloaded linked-hash-map v0.5.0
[INFO] [stderr]   Downloaded yaml-rust v0.4.0
[INFO] [stderr]   Downloaded serde_yaml v0.7.3
[INFO] [stderr]   Downloaded log4rs v0.7.0
[INFO] [stderr]   Downloaded num-iter v0.1.34
[INFO] [stderr]   Downloaded quick-error v1.2.1
[INFO] [stderr]   Downloaded ordered-float v0.5.0
[INFO] [stderr]   Downloaded time v0.1.38
[INFO] [stderr]   Downloaded clap v2.29.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfa6364d9dacc1a7c7bf46c6d52988b50be772468e579b6b6744f2f5c9c055a8
[INFO] running `Command { std: "docker" "start" "-a" "cfa6364d9dacc1a7c7bf46c6d52988b50be772468e579b6b6744f2f5c9c055a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfa6364d9dacc1a7c7bf46c6d52988b50be772468e579b6b6744f2f5c9c055a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfa6364d9dacc1a7c7bf46c6d52988b50be772468e579b6b6744f2f5c9c055a8", kill_on_drop: false }`
[INFO] [stdout] cfa6364d9dacc1a7c7bf46c6d52988b50be772468e579b6b6744f2f5c9c055a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 310159aad49dff6011070801a22cecea2ebd8a095828c610ce476ea8e6832cbf
[INFO] running `Command { std: "docker" "start" "-a" "310159aad49dff6011070801a22cecea2ebd8a095828c610ce476ea8e6832cbf", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking serde v1.0.24
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking linked-hash-map v0.5.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking humantime v1.0.0
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]     Checking clap v2.29.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling serde_derive_internals v0.18.0
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking simple_logger v0.4.0
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]    Compiling structopt-derive v0.1.5
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.24
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking serde-value v0.5.1
[INFO] [stderr]     Checking serde_yaml v0.7.3
[INFO] [stderr]     Checking serde_json v1.0.8
[INFO] [stderr]     Checking log4rs v0.7.0
[INFO] [stderr]     Checking structopt v0.1.5
[INFO] [stderr]     Checking backtrace v0.3.4
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking sum_count_files v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.56s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "310159aad49dff6011070801a22cecea2ebd8a095828c610ce476ea8e6832cbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "310159aad49dff6011070801a22cecea2ebd8a095828c610ce476ea8e6832cbf", kill_on_drop: false }`
[INFO] [stdout] 310159aad49dff6011070801a22cecea2ebd8a095828c610ce476ea8e6832cbf