[INFO] cloning repository https://github.com/karheinz/lean
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/karheinz/lean" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarheinz%2Flean", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarheinz%2Flean'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b718022bb2097be1cadd02d1a01421051e11a2e5
[INFO] checking karheinz/lean against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarheinz%2Flean" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/karheinz/lean 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/karheinz/lean
[INFO] finished tweaking git repo https://github.com/karheinz/lean
[INFO] tweaked toml for git repo https://github.com/karheinz/lean written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/karheinz/lean 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]     Updating git repository `https://github.com/karheinz/serde-yaml/`
[INFO] [stderr]     Updating git repository `https://github.com/karheinz/yaml-rust/`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 94cbf80e659bc3b4d170d84f88e862d0aa48d0419d270ba646c52a060f58d275
[INFO] running `Command { std: "docker" "start" "-a" "94cbf80e659bc3b4d170d84f88e862d0aa48d0419d270ba646c52a060f58d275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94cbf80e659bc3b4d170d84f88e862d0aa48d0419d270ba646c52a060f58d275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94cbf80e659bc3b4d170d84f88e862d0aa48d0419d270ba646c52a060f58d275", kill_on_drop: false }`
[INFO] [stdout] 94cbf80e659bc3b4d170d84f88e862d0aa48d0419d270ba646c52a060f58d275
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7f7d5afc5dd2e25435322fc8fd64a2374973ea8c4f00f8140b3a6807aba2ccc1
[INFO] running `Command { std: "docker" "start" "-a" "7f7d5afc5dd2e25435322fc8fd64a2374973ea8c4f00f8140b3a6807aba2ccc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking yaml-rust v0.4.3 (https://github.com/karheinz/yaml-rust/?branch=feature/multiline#6f4119b4)
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking serde_yaml v0.8.11 (https://github.com/karheinz/serde-yaml/?branch=feature/multiline#5ac1763a)
[INFO] [stderr]     Checking lean v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `dir` and `name` are never read
[INFO] [stdout]    --> src/cli.rs:136:5
[INFO] [stdout]     |
[INFO] [stdout] 135 | pub struct AddTask {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 136 |     dir: PathBuf,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 137 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AddTask` 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: field `dir` is never read
[INFO] [stdout]    --> src/cli.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct ListTasks {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] 182 |     dir: PathBuf,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ListTasks` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dir` is never read
[INFO] [stdout]    --> src/cli.rs:232:5
[INFO] [stdout]     |
[INFO] [stdout] 231 | pub struct ShowTasks {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] 232 |     dir: PathBuf,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ShowTasks` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dir` is never read
[INFO] [stdout]    --> src/cli.rs:232:5
[INFO] [stdout]     |
[INFO] [stdout] 231 | pub struct ShowTasks {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] 232 |     dir: PathBuf,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ShowTasks` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.93s
[INFO] running `Command { std: "docker" "inspect" "7f7d5afc5dd2e25435322fc8fd64a2374973ea8c4f00f8140b3a6807aba2ccc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f7d5afc5dd2e25435322fc8fd64a2374973ea8c4f00f8140b3a6807aba2ccc1", kill_on_drop: false }`
[INFO] [stdout] 7f7d5afc5dd2e25435322fc8fd64a2374973ea8c4f00f8140b3a6807aba2ccc1
[INFO] checking karheinz/lean against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarheinz%2Flean" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/karheinz/lean 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/karheinz/lean
[INFO] finished tweaking git repo https://github.com/karheinz/lean
[INFO] tweaked toml for git repo https://github.com/karheinz/lean written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/karheinz/lean 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7001e50473e1b8c8f3f61be20f762482b574dcd069b4a490ae8dd12b6fff8c64
[INFO] running `Command { std: "docker" "start" "-a" "7001e50473e1b8c8f3f61be20f762482b574dcd069b4a490ae8dd12b6fff8c64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7001e50473e1b8c8f3f61be20f762482b574dcd069b4a490ae8dd12b6fff8c64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7001e50473e1b8c8f3f61be20f762482b574dcd069b4a490ae8dd12b6fff8c64", kill_on_drop: false }`
[INFO] [stdout] 7001e50473e1b8c8f3f61be20f762482b574dcd069b4a490ae8dd12b6fff8c64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4ccd36e365065681c49e2f6cf0bc19b1f09d76330ce275a5d4fb4d96debb2de2
[INFO] running `Command { std: "docker" "start" "-a" "4ccd36e365065681c49e2f6cf0bc19b1f09d76330ce275a5d4fb4d96debb2de2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking yaml-rust v0.4.3 (https://github.com/karheinz/yaml-rust/?branch=feature/multiline#6f4119b4)
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.1/src/exec.rs:838:13
[INFO] [stdout]     |
[INFO] [stdout] 838 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 839 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 840 | |                 self.cache.value(),
[INFO] [stdout] 841 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 852 | |                 Quit => return Some(Quit),
[INFO] [stdout] 853 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.101
[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" "4ccd36e365065681c49e2f6cf0bc19b1f09d76330ce275a5d4fb4d96debb2de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ccd36e365065681c49e2f6cf0bc19b1f09d76330ce275a5d4fb4d96debb2de2", kill_on_drop: false }`
[INFO] [stdout] 4ccd36e365065681c49e2f6cf0bc19b1f09d76330ce275a5d4fb4d96debb2de2