[INFO] cloning repository https://github.com/sixteen05/mahnung
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sixteen05/mahnung" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsixteen05%2Fmahnung", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsixteen05%2Fmahnung'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e6c5b247e30c6f7dfe43a305064645296f01363
[INFO] checking sixteen05/mahnung against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsixteen05%2Fmahnung" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sixteen05/mahnung on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sixteen05/mahnung
[INFO] finished tweaking git repo https://github.com/sixteen05/mahnung
[INFO] tweaked toml for git repo https://github.com/sixteen05/mahnung written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sixteen05/mahnung 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cron_tab v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfa5a9acd7a7d129a31cdb2a87252089b9e048cd0e472879f930d1b6f683915f
[INFO] running `Command { std: "docker" "start" "-a" "bfa5a9acd7a7d129a31cdb2a87252089b9e048cd0e472879f930d1b6f683915f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfa5a9acd7a7d129a31cdb2a87252089b9e048cd0e472879f930d1b6f683915f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa5a9acd7a7d129a31cdb2a87252089b9e048cd0e472879f930d1b6f683915f", kill_on_drop: false }`
[INFO] [stdout] bfa5a9acd7a7d129a31cdb2a87252089b9e048cd0e472879f930d1b6f683915f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c251acd3651b7ca7a85cb2d45ed338c105b2a4f9e4b888445b91d2f4ae21761e
[INFO] running `Command { std: "docker" "start" "-a" "c251acd3651b7ca7a85cb2d45ed338c105b2a4f9e4b888445b91d2f4ae21761e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking dbus v0.8.4
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking cron v0.6.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking notify-rust v4.0.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking cron_tab v0.1.1
[INFO] [stderr]     Checking mahnung v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.79s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.1.1
[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" "c251acd3651b7ca7a85cb2d45ed338c105b2a4f9e4b888445b91d2f4ae21761e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c251acd3651b7ca7a85cb2d45ed338c105b2a4f9e4b888445b91d2f4ae21761e", kill_on_drop: false }`
[INFO] [stdout] c251acd3651b7ca7a85cb2d45ed338c105b2a4f9e4b888445b91d2f4ae21761e