[INFO] cloning repository https://github.com/program247365/looper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/program247365/looper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprogram247365%2Flooper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprogram247365%2Flooper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56b40d15d800153551d1b1d6b7e7ffce130d0057
[INFO] checking program247365/looper against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprogram247365%2Flooper" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/program247365/looper 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/program247365/looper
[INFO] finished tweaking git repo https://github.com/program247365/looper
[INFO] tweaked toml for git repo https://github.com/program247365/looper written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/program247365/looper 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 crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termtree v0.2.4
[INFO] [stderr]   Downloaded out123-sys v0.5.0
[INFO] [stderr]   Downloaded assert_cmd v1.0.8
[INFO] [stderr]   Downloaded predicates-core v1.0.3
[INFO] [stderr]   Downloaded owo-colors v3.4.0
[INFO] [stderr]   Downloaded play v0.5.3
[INFO] [stderr]   Downloaded predicates v2.1.1
[INFO] [stderr]   Downloaded predicates-tree v1.0.5
[INFO] [stderr]   Downloaded color-eyre v0.6.1
[INFO] [stderr]   Downloaded mpg123-sys v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 49a2518a8cda8460c0e5d639e0d7300e3b62b2b4af66e230002a7220dea21036
[INFO] running `Command { std: "docker" "start" "-a" "49a2518a8cda8460c0e5d639e0d7300e3b62b2b4af66e230002a7220dea21036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49a2518a8cda8460c0e5d639e0d7300e3b62b2b4af66e230002a7220dea21036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49a2518a8cda8460c0e5d639e0d7300e3b62b2b4af66e230002a7220dea21036", kill_on_drop: false }`
[INFO] [stdout] 49a2518a8cda8460c0e5d639e0d7300e3b62b2b4af66e230002a7220dea21036
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1cd2571cf73912bfde1aaae08045a0d88a87a299a9fa38eebf5e78f148efe819
[INFO] running `Command { std: "docker" "start" "-a" "1cd2571cf73912bfde1aaae08045a0d88a87a299a9fa38eebf5e78f148efe819", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking object v0.28.4
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking owo-colors v3.4.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking tracing-subscriber v0.3.11
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking directories v3.0.2
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling mpg123-sys v0.6.0
[INFO] [stderr]    Compiling out123-sys v0.5.0
[INFO] [stderr]     Checking assert_cmd v1.0.8
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking color-eyre v0.6.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking play v0.5.3
[INFO] [stderr]     Checking looper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.68s
[INFO] running `Command { std: "docker" "inspect" "1cd2571cf73912bfde1aaae08045a0d88a87a299a9fa38eebf5e78f148efe819", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cd2571cf73912bfde1aaae08045a0d88a87a299a9fa38eebf5e78f148efe819", kill_on_drop: false }`
[INFO] [stdout] 1cd2571cf73912bfde1aaae08045a0d88a87a299a9fa38eebf5e78f148efe819
[INFO] checking program247365/looper against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprogram247365%2Flooper" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/program247365/looper 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/program247365/looper
[INFO] finished tweaking git repo https://github.com/program247365/looper
[INFO] tweaked toml for git repo https://github.com/program247365/looper written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/program247365/looper 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d38b8858d0c1ab0894cd5928a7dbda9e834370b4322c09a51b093021f2669cf5
[INFO] running `Command { std: "docker" "start" "-a" "d38b8858d0c1ab0894cd5928a7dbda9e834370b4322c09a51b093021f2669cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d38b8858d0c1ab0894cd5928a7dbda9e834370b4322c09a51b093021f2669cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d38b8858d0c1ab0894cd5928a7dbda9e834370b4322c09a51b093021f2669cf5", kill_on_drop: false }`
[INFO] [stdout] d38b8858d0c1ab0894cd5928a7dbda9e834370b4322c09a51b093021f2669cf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 128403a4c059f494d64e569f30509ec664704573bbddcd1836bf0aec3c6ce3ef
[INFO] running `Command { std: "docker" "start" "-a" "128403a4c059f494d64e569f30509ec664704573bbddcd1836bf0aec3c6ce3ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking object v0.28.4
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking owo-colors v3.4.0
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/miniz_oxide-0.5.1/src/inflate/core.rs:1107:9
[INFO] [stdout]      |
[INFO] [stdout] 1107 | /         match state {
[INFO] [stdout] 1108 | |             Start => generate_state!(state, 'state_machine, {
[INFO] [stdout] 1109 | |                 l.bit_buf = 0;
[INFO] [stdout] 1110 | |                 l.num_bits = 0;
[INFO] [stdout] ...    |
[INFO] [stdout] 1639 | |             _ => break TINFLStatus::Failed,
[INFO] [stdout] 1640 | |         };
[INFO] [stdout]      | |_________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]    Compiling heck v0.3.3
[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" "128403a4c059f494d64e569f30509ec664704573bbddcd1836bf0aec3c6ce3ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "128403a4c059f494d64e569f30509ec664704573bbddcd1836bf0aec3c6ce3ef", kill_on_drop: false }`
[INFO] [stdout] 128403a4c059f494d64e569f30509ec664704573bbddcd1836bf0aec3c6ce3ef