[INFO] cloning repository https://github.com/CodogoFreddie/freddie-bar
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CodogoFreddie/freddie-bar" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCodogoFreddie%2Ffreddie-bar", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCodogoFreddie%2Ffreddie-bar'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9495d85aaf4c3e0f0934e74bb7c794081c3b2ed3
[INFO] checking CodogoFreddie/freddie-bar against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCodogoFreddie%2Ffreddie-bar" "/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/CodogoFreddie/freddie-bar 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/CodogoFreddie/freddie-bar
[INFO] finished tweaking git repo https://github.com/CodogoFreddie/freddie-bar
[INFO] tweaked toml for git repo https://github.com/CodogoFreddie/freddie-bar written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CodogoFreddie/freddie-bar 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 num-traits v0.2.0
[INFO] [stderr]   Downloaded chrono v0.4.0
[INFO] [stderr]   Downloaded regex v0.2.6
[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] 9a1767c6eba3dcd9a469614ec7b04744626043c2e3466e02ca5890f28cc780d6
[INFO] running `Command { std: "docker" "start" "-a" "9a1767c6eba3dcd9a469614ec7b04744626043c2e3466e02ca5890f28cc780d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a1767c6eba3dcd9a469614ec7b04744626043c2e3466e02ca5890f28cc780d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a1767c6eba3dcd9a469614ec7b04744626043c2e3466e02ca5890f28cc780d6", kill_on_drop: false }`
[INFO] [stdout] 9a1767c6eba3dcd9a469614ec7b04744626043c2e3466e02ca5890f28cc780d6
[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] 7b64ec9aa66cd022cf5ed07b16294a75764029d1ab632dfcc7f51583dbd0b18e
[INFO] running `Command { std: "docker" "start" "-a" "7b64ec9aa66cd022cf5ed07b16294a75764029d1ab632dfcc7f51583dbd0b18e", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking regex v0.2.6
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking freddie-bar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/i3.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate serde_json;
[INFO] [stdout]   | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/i3.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate serde_json;
[INFO] [stdout]   | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "7b64ec9aa66cd022cf5ed07b16294a75764029d1ab632dfcc7f51583dbd0b18e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b64ec9aa66cd022cf5ed07b16294a75764029d1ab632dfcc7f51583dbd0b18e", kill_on_drop: false }`
[INFO] [stdout] 7b64ec9aa66cd022cf5ed07b16294a75764029d1ab632dfcc7f51583dbd0b18e
[INFO] checking CodogoFreddie/freddie-bar against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCodogoFreddie%2Ffreddie-bar" "/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/CodogoFreddie/freddie-bar 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/CodogoFreddie/freddie-bar
[INFO] finished tweaking git repo https://github.com/CodogoFreddie/freddie-bar
[INFO] tweaked toml for git repo https://github.com/CodogoFreddie/freddie-bar written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/CodogoFreddie/freddie-bar 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] 6521eedddde50212131fb106ed59845e796705a4bc7a392933bfa0ae54fe41b3
[INFO] running `Command { std: "docker" "start" "-a" "6521eedddde50212131fb106ed59845e796705a4bc7a392933bfa0ae54fe41b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6521eedddde50212131fb106ed59845e796705a4bc7a392933bfa0ae54fe41b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6521eedddde50212131fb106ed59845e796705a4bc7a392933bfa0ae54fe41b3", kill_on_drop: false }`
[INFO] [stdout] 6521eedddde50212131fb106ed59845e796705a4bc7a392933bfa0ae54fe41b3
[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] e8648773098e1d0e1ec1ecb8bc01965d59750bdc48187f42242cbef0b6861398
[INFO] running `Command { std: "docker" "start" "-a" "e8648773098e1d0e1ec1ecb8bc01965d59750bdc48187f42242cbef0b6861398", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking regex v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-0.2.6/src/exec.rs:742:13
[INFO] [stdout]     |
[INFO] [stdout] 742 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 743 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 744 | |                 self.cache,
[INFO] [stdout] 745 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 752 | |                 Quit => return Some(Quit),
[INFO] [stdout] 753 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.4.0
[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" "e8648773098e1d0e1ec1ecb8bc01965d59750bdc48187f42242cbef0b6861398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8648773098e1d0e1ec1ecb8bc01965d59750bdc48187f42242cbef0b6861398", kill_on_drop: false }`
[INFO] [stdout] e8648773098e1d0e1ec1ecb8bc01965d59750bdc48187f42242cbef0b6861398