[INFO] cloning repository https://github.com/FedericoStra/dfs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FedericoStra/dfs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFedericoStra%2Fdfs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFedericoStra%2Fdfs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f7b3ee61dcab0751d855d58c61091d239873791
[INFO] checking FedericoStra/dfs against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFedericoStra%2Fdfs" "/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/FedericoStra/dfs 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/FedericoStra/dfs
[INFO] finished tweaking git repo https://github.com/FedericoStra/dfs
[INFO] tweaked toml for git repo https://github.com/FedericoStra/dfs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/FedericoStra/dfs 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 dirs-sys v0.3.6
[INFO] [stderr]   Downloaded redox_users v0.4.0
[INFO] [stderr]   Downloaded config v0.11.0
[INFO] [stderr]   Downloaded textwrap v0.14.2
[INFO] [stderr]   Downloaded backtrace v0.3.63
[INFO] [stderr]   Downloaded anyhow v1.0.53
[INFO] [stderr]   Downloaded object v0.27.1
[INFO] [stderr]   Downloaded lexical-core v0.7.6
[INFO] [stderr]   Downloaded libc v0.2.113
[INFO] [stderr]   Downloaded clap v3.0.10
[INFO] [stderr]   Downloaded serde_json v1.0.78
[INFO] [stderr]   Downloaded clap_derive v3.0.6
[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] 3bdf055b71dbc6b20ba1dee14ba48f48f7c612203f77e2338391eab781c43020
[INFO] running `Command { std: "docker" "start" "-a" "3bdf055b71dbc6b20ba1dee14ba48f48f7c612203f77e2338391eab781c43020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bdf055b71dbc6b20ba1dee14ba48f48f7c612203f77e2338391eab781c43020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bdf055b71dbc6b20ba1dee14ba48f48f7c612203f77e2338391eab781c43020", kill_on_drop: false }`
[INFO] [stdout] 3bdf055b71dbc6b20ba1dee14ba48f48f7c612203f77e2338391eab781c43020
[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] 688b50024f556e47e20bf37ae939feb21d86bad53f453d0db8f7125e7533809f
[INFO] running `Command { std: "docker" "start" "-a" "688b50024f556e47e20bf37ae939feb21d86bad53f453d0db8f7125e7533809f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking directories v4.0.1
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling clap_derive v3.0.6
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking clap v3.0.10
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking config v0.11.0
[INFO] [stderr]     Checking dfs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `env_logger` is imported redundantly
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use env_logger;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `env_logger` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `env_logger` is imported redundantly
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use env_logger;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `env_logger` is already defined by prelude
[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 8.53s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "688b50024f556e47e20bf37ae939feb21d86bad53f453d0db8f7125e7533809f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "688b50024f556e47e20bf37ae939feb21d86bad53f453d0db8f7125e7533809f", kill_on_drop: false }`
[INFO] [stdout] 688b50024f556e47e20bf37ae939feb21d86bad53f453d0db8f7125e7533809f
[INFO] checking FedericoStra/dfs against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFedericoStra%2Fdfs" "/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/FedericoStra/dfs 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/FedericoStra/dfs
[INFO] finished tweaking git repo https://github.com/FedericoStra/dfs
[INFO] tweaked toml for git repo https://github.com/FedericoStra/dfs written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/FedericoStra/dfs 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] 544c3cd49fb4628da7947228001287b13eeb1c575df52cbe58df3d2d24c19300
[INFO] running `Command { std: "docker" "start" "-a" "544c3cd49fb4628da7947228001287b13eeb1c575df52cbe58df3d2d24c19300", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "544c3cd49fb4628da7947228001287b13eeb1c575df52cbe58df3d2d24c19300", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "544c3cd49fb4628da7947228001287b13eeb1c575df52cbe58df3d2d24c19300", kill_on_drop: false }`
[INFO] [stdout] 544c3cd49fb4628da7947228001287b13eeb1c575df52cbe58df3d2d24c19300
[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] 1dcd36d703a9f0cadd5d25347dcbc03bccb857afb0db6a67451b1f81b4b4d9c8
[INFO] running `Command { std: "docker" "start" "-a" "1dcd36d703a9f0cadd5d25347dcbc03bccb857afb0db6a67451b1f81b4b4d9c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/miniz_oxide-0.4.4/src/inflate/core.rs:1060:9
[INFO] [stdout]      |
[INFO] [stdout] 1060 | /         match state {
[INFO] [stdout] 1061 | |             Start => generate_state!(state, 'state_machine, {
[INFO] [stdout] 1062 | |                 l.bit_buf = 0;
[INFO] [stdout] 1063 | |                 l.num_bits = 0;
[INFO] [stdout] ...    |
[INFO] [stdout] 1592 | |             _ => break TINFLStatus::Failed,
[INFO] [stdout] 1593 | |         };
[INFO] [stdout]      | |_________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[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 `miniz_oxide` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1dcd36d703a9f0cadd5d25347dcbc03bccb857afb0db6a67451b1f81b4b4d9c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dcd36d703a9f0cadd5d25347dcbc03bccb857afb0db6a67451b1f81b4b4d9c8", kill_on_drop: false }`
[INFO] [stdout] 1dcd36d703a9f0cadd5d25347dcbc03bccb857afb0db6a67451b1f81b4b4d9c8