[INFO] fetching crate rmake 0.1.38...
[INFO] checking rmake-0.1.38 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rmake 0.1.38 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rmake 0.1.38 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 crates.io crate rmake 0.1.38
[INFO] finished tweaking crates.io crate rmake 0.1.38
[INFO] tweaked toml for crates.io crate rmake 0.1.38 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate rmake 0.1.38 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]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.39
[INFO] [stderr]   Downloaded quote v1.0.19
[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] c1eaab72da1de2c2419a953c14eeec755b5ecf92a0993eabcb829f7994180d04
[INFO] running `Command { std: "docker" "start" "-a" "c1eaab72da1de2c2419a953c14eeec755b5ecf92a0993eabcb829f7994180d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1eaab72da1de2c2419a953c14eeec755b5ecf92a0993eabcb829f7994180d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1eaab72da1de2c2419a953c14eeec755b5ecf92a0993eabcb829f7994180d04", kill_on_drop: false }`
[INFO] [stdout] c1eaab72da1de2c2419a953c14eeec755b5ecf92a0993eabcb829f7994180d04
[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] 3b5b40d77e07847c1a8eac7c9a58cac196f885871012796967704634ca6a71aa
[INFO] running `Command { std: "docker" "start" "-a" "3b5b40d77e07847c1a8eac7c9a58cac196f885871012796967704634ca6a71aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling quote v1.0.19
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking rmake v0.1.38 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.71s
[INFO] running `Command { std: "docker" "inspect" "3b5b40d77e07847c1a8eac7c9a58cac196f885871012796967704634ca6a71aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b5b40d77e07847c1a8eac7c9a58cac196f885871012796967704634ca6a71aa", kill_on_drop: false }`
[INFO] [stdout] 3b5b40d77e07847c1a8eac7c9a58cac196f885871012796967704634ca6a71aa
[INFO] checking rmake-0.1.38 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate rmake 0.1.38 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate rmake 0.1.38 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 crates.io crate rmake 0.1.38
[INFO] finished tweaking crates.io crate rmake 0.1.38
[INFO] tweaked toml for crates.io crate rmake 0.1.38 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate rmake 0.1.38 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] a290dcf502caa23a0e16d1fc57173eb0543763646fb7a19e1dc7f3f0ec801a78
[INFO] running `Command { std: "docker" "start" "-a" "a290dcf502caa23a0e16d1fc57173eb0543763646fb7a19e1dc7f3f0ec801a78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a290dcf502caa23a0e16d1fc57173eb0543763646fb7a19e1dc7f3f0ec801a78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a290dcf502caa23a0e16d1fc57173eb0543763646fb7a19e1dc7f3f0ec801a78", kill_on_drop: false }`
[INFO] [stdout] a290dcf502caa23a0e16d1fc57173eb0543763646fb7a19e1dc7f3f0ec801a78
[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] 7a8e0a112e9a2f4e288b4387651edfe835d54a5d7e3a2d03dca503efbde9a140
[INFO] running `Command { std: "docker" "start" "-a" "7a8e0a112e9a2f4e288b4387651edfe835d54a5d7e3a2d03dca503efbde9a140", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling quote v1.0.19
[INFO] [stderr]     Checking time v0.1.44
[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" "7a8e0a112e9a2f4e288b4387651edfe835d54a5d7e3a2d03dca503efbde9a140", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a8e0a112e9a2f4e288b4387651edfe835d54a5d7e3a2d03dca503efbde9a140", kill_on_drop: false }`
[INFO] [stdout] 7a8e0a112e9a2f4e288b4387651edfe835d54a5d7e3a2d03dca503efbde9a140