[INFO] cloning repository https://github.com/udayj/calr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/udayj/calr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudayj%2Fcalr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudayj%2Fcalr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0c07e6fcda23ce73dcbd625c4c3d4955eba4434
[INFO] checking udayj/calr/e0c07e6fcda23ce73dcbd625c4c3d4955eba4434 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudayj%2Fcalr" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/udayj/calr 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/udayj/calr
[INFO] finished tweaking git repo https://github.com/udayj/calr
[INFO] tweaked toml for git repo https://github.com/udayj/calr written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/udayj/calr 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 predicates v3.0.3
[INFO] [stderr]   Downloaded assert_cmd v2.0.11
[INFO] [stderr]   Downloaded bstr v1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8c039641a162ef9a6a234a7cd024b6cc6d59dc7ca8e6d4a7acfe339a7d33c921
[INFO] running `Command { std: "docker" "start" "-a" "8c039641a162ef9a6a234a7cd024b6cc6d59dc7ca8e6d4a7acfe339a7d33c921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c039641a162ef9a6a234a7cd024b6cc6d59dc7ca8e6d4a7acfe339a7d33c921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c039641a162ef9a6a234a7cd024b6cc6d59dc7ca8e6d4a7acfe339a7d33c921", kill_on_drop: false }`
[INFO] [stdout] 8c039641a162ef9a6a234a7cd024b6cc6d59dc7ca8e6d4a7acfe339a7d33c921
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e33f34c991e55da8b5d555d46ad9af13731b7fabeea9e7c9d0e2d282ea87d239
[INFO] running `Command { std: "docker" "start" "-a" "e33f34c991e55da8b5d555d46ad9af13731b7fabeea9e7c9d0e2d282ea87d239", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking bstr v1.5.0
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking predicates v3.0.3
[INFO] [stderr]     Checking assert_cmd v2.0.11
[INFO] [stderr]     Checking regex v1.8.3
[INFO] [stderr]     Checking calr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stdout] warning: use of deprecated associated function `chrono::Local::today`: use `Local::now()` instead
[INFO] [stdout]   --> src/lib.rs:48:24
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let today = Local::today();
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `month`, `year`, and `today` are never read
[INFO] [stdout]   --> src/lib.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Config {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 8  |
[INFO] [stdout] 9  |     month: Option<u32>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     year: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     today: NaiveDate,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `chrono::Local::today`: use `Local::now()` instead
[INFO] [stdout]   --> src/lib.rs:48:24
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let today = Local::today();
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `month`, `year`, and `today` are never read
[INFO] [stdout]   --> src/lib.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Config {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 8  |
[INFO] [stdout] 9  |     month: Option<u32>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     year: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     today: NaiveDate,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "e33f34c991e55da8b5d555d46ad9af13731b7fabeea9e7c9d0e2d282ea87d239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e33f34c991e55da8b5d555d46ad9af13731b7fabeea9e7c9d0e2d282ea87d239", kill_on_drop: false }`
[INFO] [stdout] e33f34c991e55da8b5d555d46ad9af13731b7fabeea9e7c9d0e2d282ea87d239
[INFO] checking udayj/calr/e0c07e6fcda23ce73dcbd625c4c3d4955eba4434 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudayj%2Fcalr" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/udayj/calr 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/udayj/calr
[INFO] finished tweaking git repo https://github.com/udayj/calr
[INFO] tweaked toml for git repo https://github.com/udayj/calr written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/udayj/calr 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8e3d3ee4bd337eb84826131cd9d4b6ed6b621c199e1c0d4fa870f42caf1681db
[INFO] running `Command { std: "docker" "start" "-a" "8e3d3ee4bd337eb84826131cd9d4b6ed6b621c199e1c0d4fa870f42caf1681db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e3d3ee4bd337eb84826131cd9d4b6ed6b621c199e1c0d4fa870f42caf1681db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e3d3ee4bd337eb84826131cd9d4b6ed6b621c199e1c0d4fa870f42caf1681db", kill_on_drop: false }`
[INFO] [stdout] 8e3d3ee4bd337eb84826131cd9d4b6ed6b621c199e1c0d4fa870f42caf1681db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 906b654d1cf1b2849d8b3453b0b90df93cbe40e3ccd98eb20d7ee810b465f83e
[INFO] running `Command { std: "docker" "start" "-a" "906b654d1cf1b2849d8b3453b0b90df93cbe40e3ccd98eb20d7ee810b465f83e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking bstr v1.5.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking predicates v3.0.3
[INFO] [stderr]     Checking assert_cmd v2.0.11
[INFO] [stderr]     Checking regex v1.8.3
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.8.3/src/exec.rs:899:13
[INFO] [stdout]     |
[INFO] [stdout] 899 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 900 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 901 | |                 self.cache.value(),
[INFO] [stdout] 902 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 913 | |                 Quit => return Some(Quit),
[INFO] [stdout] 914 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[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 `regex` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "906b654d1cf1b2849d8b3453b0b90df93cbe40e3ccd98eb20d7ee810b465f83e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "906b654d1cf1b2849d8b3453b0b90df93cbe40e3ccd98eb20d7ee810b465f83e", kill_on_drop: false }`
[INFO] [stdout] 906b654d1cf1b2849d8b3453b0b90df93cbe40e3ccd98eb20d7ee810b465f83e