[INFO] cloning repository https://github.com/billco/dd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/billco/dd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbillco%2Fdd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbillco%2Fdd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92eda24c1e65117dfad66a1d18a8f3c5af7e1906
[INFO] checking billco/dd against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbillco%2Fdd" "/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/billco/dd 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/billco/dd
[INFO] finished tweaking git repo https://github.com/billco/dd
[INFO] tweaked toml for git repo https://github.com/billco/dd written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/billco/dd 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-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 263d5f2f925f7b3452cfdd8f081fc6a8c4211d3f49bbeb1c9f2b2a10f382ad9c
[INFO] running `Command { std: "docker" "start" "-a" "263d5f2f925f7b3452cfdd8f081fc6a8c4211d3f49bbeb1c9f2b2a10f382ad9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "263d5f2f925f7b3452cfdd8f081fc6a8c4211d3f49bbeb1c9f2b2a10f382ad9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "263d5f2f925f7b3452cfdd8f081fc6a8c4211d3f49bbeb1c9f2b2a10f382ad9c", kill_on_drop: false }`
[INFO] [stdout] 263d5f2f925f7b3452cfdd8f081fc6a8c4211d3f49bbeb1c9f2b2a10f382ad9c
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0bb2f8e2892c3d70b72de04870ea80da828f508f464c5520cd8e178348b681c
[INFO] running `Command { std: "docker" "start" "-a" "e0bb2f8e2892c3d70b72de04870ea80da828f508f464c5520cd8e178348b681c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking dd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `NaiveDateTime` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use chrono::prelude::*;
[INFO] [stdout]   |     ------------------ the item `NaiveDateTime` is already imported here
[INFO] [stdout] 2 | use chrono::NaiveDateTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NaiveDateTime` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use chrono::prelude::*;
[INFO] [stdout]   |     ------------------ the item `NaiveDateTime` is already imported here
[INFO] [stdout] 2 | use chrono::NaiveDateTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:317:63
[INFO] [stdout]     |
[INFO] [stdout] 317 | fn dmm(h: &Vec<Hour>, el: usize, start: usize, end: usize) -> (Daymm) {
[INFO] [stdout]     |                                                               ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 317 - fn dmm(h: &Vec<Hour>, el: usize, start: usize, end: usize) -> (Daymm) {
[INFO] [stdout] 317 + fn dmm(h: &Vec<Hour>, el: usize, start: usize, end: usize) -> Daymm {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:317:63
[INFO] [stdout]     |
[INFO] [stdout] 317 | fn dmm(h: &Vec<Hour>, el: usize, start: usize, end: usize) -> (Daymm) {
[INFO] [stdout]     |                                                               ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 317 - fn dmm(h: &Vec<Hour>, el: usize, start: usize, end: usize) -> (Daymm) {
[INFO] [stdout] 317 + fn dmm(h: &Vec<Hour>, el: usize, start: usize, end: usize) -> Daymm {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "e0bb2f8e2892c3d70b72de04870ea80da828f508f464c5520cd8e178348b681c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0bb2f8e2892c3d70b72de04870ea80da828f508f464c5520cd8e178348b681c", kill_on_drop: false }`
[INFO] [stdout] e0bb2f8e2892c3d70b72de04870ea80da828f508f464c5520cd8e178348b681c
[INFO] checking billco/dd against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbillco%2Fdd" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/billco/dd 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/billco/dd
[INFO] finished tweaking git repo https://github.com/billco/dd
[INFO] tweaked toml for git repo https://github.com/billco/dd written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/billco/dd 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 98ef547d13a4e3ef721038c69b45efb01a9cdb4ed25b5ef53e67cb8fda406480
[INFO] running `Command { std: "docker" "start" "-a" "98ef547d13a4e3ef721038c69b45efb01a9cdb4ed25b5ef53e67cb8fda406480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98ef547d13a4e3ef721038c69b45efb01a9cdb4ed25b5ef53e67cb8fda406480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98ef547d13a4e3ef721038c69b45efb01a9cdb4ed25b5ef53e67cb8fda406480", kill_on_drop: false }`
[INFO] [stdout] 98ef547d13a4e3ef721038c69b45efb01a9cdb4ed25b5ef53e67cb8fda406480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 060e5fb3496405c67e8ce1828f1a00293a6402a37a2db4c766dac5d08c2314d7
[INFO] running `Command { std: "docker" "start" "-a" "060e5fb3496405c67e8ce1828f1a00293a6402a37a2db4c766dac5d08c2314d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[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] running `Command { std: "docker" "inspect" "060e5fb3496405c67e8ce1828f1a00293a6402a37a2db4c766dac5d08c2314d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "060e5fb3496405c67e8ce1828f1a00293a6402a37a2db4c766dac5d08c2314d7", kill_on_drop: false }`
[INFO] [stdout] 060e5fb3496405c67e8ce1828f1a00293a6402a37a2db4c766dac5d08c2314d7