[INFO] cloning repository https://github.com/YannikSc/rustgen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YannikSc/rustgen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYannikSc%2Frustgen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYannikSc%2Frustgen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bfe8a2e07aafc2d620baa085a6ba023f14c812de
[INFO] checking YannikSc/rustgen against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYannikSc%2Frustgen" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YannikSc/rustgen 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/YannikSc/rustgen
[INFO] finished tweaking git repo https://github.com/YannikSc/rustgen
[INFO] tweaked toml for git repo https://github.com/YannikSc/rustgen written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/YannikSc/rustgen 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] 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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a1c016485183d91261728ca04fa83a4ec74800b4851752d6eed0f6eb80d024b
[INFO] running `Command { std: "docker" "start" "-a" "1a1c016485183d91261728ca04fa83a4ec74800b4851752d6eed0f6eb80d024b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a1c016485183d91261728ca04fa83a4ec74800b4851752d6eed0f6eb80d024b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a1c016485183d91261728ca04fa83a4ec74800b4851752d6eed0f6eb80d024b", kill_on_drop: false }`
[INFO] [stdout] 1a1c016485183d91261728ca04fa83a4ec74800b4851752d6eed0f6eb80d024b
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ef879489ed61f82ce468191093709d389712a2f623cd62df0cc5220c881d254
[INFO] running `Command { std: "docker" "start" "-a" "6ef879489ed61f82ce468191093709d389712a2f623cd62df0cc5220c881d254", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.61
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking quick-error v2.0.0
[INFO] [stderr]     Checking convert_case v0.4.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking handlebars v3.5.4
[INFO] [stderr]     Checking rustgen v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.51s
[INFO] running `Command { std: "docker" "inspect" "6ef879489ed61f82ce468191093709d389712a2f623cd62df0cc5220c881d254", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ef879489ed61f82ce468191093709d389712a2f623cd62df0cc5220c881d254", kill_on_drop: false }`
[INFO] [stdout] 6ef879489ed61f82ce468191093709d389712a2f623cd62df0cc5220c881d254
[INFO] checking YannikSc/rustgen against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYannikSc%2Frustgen" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YannikSc/rustgen 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/YannikSc/rustgen
[INFO] finished tweaking git repo https://github.com/YannikSc/rustgen
[INFO] tweaked toml for git repo https://github.com/YannikSc/rustgen written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/YannikSc/rustgen 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ff3479d8c01a023b483481649a8cc4b37c4bef4c2e41c2dc6bf497fca7983886
[INFO] running `Command { std: "docker" "start" "-a" "ff3479d8c01a023b483481649a8cc4b37c4bef4c2e41c2dc6bf497fca7983886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff3479d8c01a023b483481649a8cc4b37c4bef4c2e41c2dc6bf497fca7983886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff3479d8c01a023b483481649a8cc4b37c4bef4c2e41c2dc6bf497fca7983886", kill_on_drop: false }`
[INFO] [stdout] ff3479d8c01a023b483481649a8cc4b37c4bef4c2e41c2dc6bf497fca7983886
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d30032da050a6d44a987e99d2fef790c228fdaa11e35ed08953fb887875869e2
[INFO] running `Command { std: "docker" "start" "-a" "d30032da050a6d44a987e99d2fef790c228fdaa11e35ed08953fb887875869e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.61
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking ryu v1.0.5
[INFO] [stderr]     Checking num-traits v0.2.14
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking quick-error v2.0.0
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking convert_case v0.4.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.4.19/src/format/parse.rs:491:21
[INFO] [stdout]     |
[INFO] [stdout] 491 |                     Err(INVALID)?;
[INFO] [stdout]     |                     ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 491 |                     Err::<T, format::ParseError>(INVALID)?;
[INFO] [stdout]     |                        +++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[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 `chrono` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d30032da050a6d44a987e99d2fef790c228fdaa11e35ed08953fb887875869e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d30032da050a6d44a987e99d2fef790c228fdaa11e35ed08953fb887875869e2", kill_on_drop: false }`
[INFO] [stdout] d30032da050a6d44a987e99d2fef790c228fdaa11e35ed08953fb887875869e2