[INFO] cloning repository https://github.com/frugalos/watarikani
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frugalos/watarikani" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrugalos%2Fwatarikani", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrugalos%2Fwatarikani'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62e67ee9a98945b22a11c412aab97c4a266da2fe
[INFO] checking frugalos/watarikani against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrugalos%2Fwatarikani" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frugalos/watarikani 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/frugalos/watarikani
[INFO] finished tweaking git repo https://github.com/frugalos/watarikani
[INFO] tweaked toml for git repo https://github.com/frugalos/watarikani written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/frugalos/watarikani 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 redox_syscall v0.1.49
[INFO] [stderr]   Downloaded trackable_derive v0.1.1
[INFO] [stderr]   Downloaded fibers_tasque v0.1.1
[INFO] [stderr]   Downloaded trackable v0.2.20
[INFO] [stderr]   Downloaded prometrics v0.1.11
[INFO] [stderr]   Downloaded factory v0.1.1
[INFO] [stderr]   Downloaded slog v2.4.1
[INFO] [stderr]   Downloaded cannyls_rpc v0.2.0
[INFO] [stderr]   Downloaded tasque v0.1.4
[INFO] [stderr]   Downloaded cannyls v0.10.0
[INFO] [stderr]   Downloaded protobuf_codec v0.2.6
[INFO] [stderr]   Downloaded fibers_rpc v0.2.17
[INFO] [stderr]   Downloaded fibers v0.1.12
[INFO] [stderr]   Downloaded bytecodec v0.4.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 46c541409f176489510ee8f37526f4ae693fa12ab4b3fc531d3f8a203cbb1be8
[INFO] running `Command { std: "docker" "start" "-a" "46c541409f176489510ee8f37526f4ae693fa12ab4b3fc531d3f8a203cbb1be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46c541409f176489510ee8f37526f4ae693fa12ab4b3fc531d3f8a203cbb1be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46c541409f176489510ee8f37526f4ae693fa12ab4b3fc531d3f8a203cbb1be8", kill_on_drop: false }`
[INFO] [stdout] 46c541409f176489510ee8f37526f4ae693fa12ab4b3fc531d3f8a203cbb1be8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 04fb001644d6ff6bcbd5a4b05f4c8d0cc4d7da23ac86e585d84e8f7b2d2c2bcc
[INFO] running `Command { std: "docker" "start" "-a" "04fb001644d6ff6bcbd5a4b05f4c8d0cc4d7da23ac86e585d84e8f7b2d2c2bcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking atomic_immut v0.1.4
[INFO] [stderr]     Checking nbchan v0.1.3
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking factory v0.1.1
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking fibers v0.1.12
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]    Compiling trackable_derive v0.1.1
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking trackable v0.2.20
[INFO] [stderr]     Checking bytecodec v0.4.11
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking prometrics v0.1.11
[INFO] [stderr]     Checking protobuf_codec v0.2.6
[INFO] [stderr]     Checking tasque v0.1.4
[INFO] [stderr]     Checking cannyls v0.10.0
[INFO] [stderr]     Checking fibers_tasque v0.1.1
[INFO] [stderr]     Checking fibers_rpc v0.2.17
[INFO] [stderr]     Checking cannyls_rpc v0.2.0
[INFO] [stderr]     Checking watarikani v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.71s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v2.2.1
[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" "04fb001644d6ff6bcbd5a4b05f4c8d0cc4d7da23ac86e585d84e8f7b2d2c2bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04fb001644d6ff6bcbd5a4b05f4c8d0cc4d7da23ac86e585d84e8f7b2d2c2bcc", kill_on_drop: false }`
[INFO] [stdout] 04fb001644d6ff6bcbd5a4b05f4c8d0cc4d7da23ac86e585d84e8f7b2d2c2bcc
[INFO] checking frugalos/watarikani against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrugalos%2Fwatarikani" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frugalos/watarikani on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/frugalos/watarikani
[INFO] finished tweaking git repo https://github.com/frugalos/watarikani
[INFO] tweaked toml for git repo https://github.com/frugalos/watarikani written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/frugalos/watarikani 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2c473da09b531c8403af6767996535a2244059ae7d045333649f5742c2e247c
[INFO] running `Command { std: "docker" "start" "-a" "e2c473da09b531c8403af6767996535a2244059ae7d045333649f5742c2e247c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2c473da09b531c8403af6767996535a2244059ae7d045333649f5742c2e247c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2c473da09b531c8403af6767996535a2244059ae7d045333649f5742c2e247c", kill_on_drop: false }`
[INFO] [stdout] e2c473da09b531c8403af6767996535a2244059ae7d045333649f5742c2e247c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dde5e8e4c4130a5528a67c4426bdeeeaf4605e0dce39aeebfbfea737c47eb08
[INFO] running `Command { std: "docker" "start" "-a" "5dde5e8e4c4130a5528a67c4426bdeeeaf4605e0dce39aeebfbfea737c47eb08", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking atomic_immut v0.1.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]     Checking nbchan v0.1.3
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking factory v0.1.1
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mio-0.6.16/src/poll.rs:2067:13
[INFO] [stdout]      |
[INFO] [stdout] 2067 |             panic!();
[INFO] [stdout]      |             ^^^^^^^^ cannot infer type
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mio` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5dde5e8e4c4130a5528a67c4426bdeeeaf4605e0dce39aeebfbfea737c47eb08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dde5e8e4c4130a5528a67c4426bdeeeaf4605e0dce39aeebfbfea737c47eb08", kill_on_drop: false }`
[INFO] [stdout] 5dde5e8e4c4130a5528a67c4426bdeeeaf4605e0dce39aeebfbfea737c47eb08