[INFO] fetching crate likh 0.1.5...
[INFO] checking likh-0.1.5 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate likh 0.1.5 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate likh 0.1.5 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 crates.io crate likh 0.1.5
[INFO] finished tweaking crates.io crate likh 0.1.5
[INFO] tweaked toml for crates.io crate likh 0.1.5 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 03d581728abf7b5ad8cf1d632635e7aa8fbc725f2fb526b0828b8066bdc17fa6
[INFO] running `Command { std: "docker" "start" "-a" "03d581728abf7b5ad8cf1d632635e7aa8fbc725f2fb526b0828b8066bdc17fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03d581728abf7b5ad8cf1d632635e7aa8fbc725f2fb526b0828b8066bdc17fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03d581728abf7b5ad8cf1d632635e7aa8fbc725f2fb526b0828b8066bdc17fa6", kill_on_drop: false }`
[INFO] [stdout] 03d581728abf7b5ad8cf1d632635e7aa8fbc725f2fb526b0828b8066bdc17fa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6ec203457b1af1b18914ed1223d46f40314242ac66a5bf00617725d16d3b1fbe
[INFO] running `Command { std: "docker" "start" "-a" "6ec203457b1af1b18914ed1223d46f40314242ac66a5bf00617725d16d3b1fbe", kill_on_drop: false }`
[INFO] [stderr]     Checking likh v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "6ec203457b1af1b18914ed1223d46f40314242ac66a5bf00617725d16d3b1fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ec203457b1af1b18914ed1223d46f40314242ac66a5bf00617725d16d3b1fbe", kill_on_drop: false }`
[INFO] [stdout] 6ec203457b1af1b18914ed1223d46f40314242ac66a5bf00617725d16d3b1fbe
[INFO] checking likh-0.1.5 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate likh 0.1.5 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate likh 0.1.5 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 crates.io crate likh 0.1.5
[INFO] finished tweaking crates.io crate likh 0.1.5
[INFO] tweaked toml for crates.io crate likh 0.1.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ea78a9624b23276e9c325b99d4de1cefa5deba163c1907e35f9d6e6038b5283a
[INFO] running `Command { std: "docker" "start" "-a" "ea78a9624b23276e9c325b99d4de1cefa5deba163c1907e35f9d6e6038b5283a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea78a9624b23276e9c325b99d4de1cefa5deba163c1907e35f9d6e6038b5283a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea78a9624b23276e9c325b99d4de1cefa5deba163c1907e35f9d6e6038b5283a", kill_on_drop: false }`
[INFO] [stdout] ea78a9624b23276e9c325b99d4de1cefa5deba163c1907e35f9d6e6038b5283a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 88c0337f08cc2afe9caa46a9f53280a9ee9c7fd7afe6fb3cdf5e9b850e9c2504
[INFO] running `Command { std: "docker" "start" "-a" "88c0337f08cc2afe9caa46a9f53280a9ee9c7fd7afe6fb3cdf5e9b850e9c2504", kill_on_drop: false }`
[INFO] [stderr]     Checking likh v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | /     match fs::read_to_string(filename) {
[INFO] [stdout] 9  | |         Ok(c) => return Ok(String::from(c)),
[INFO] [stdout] 10 | |         Err(why) => return Err(why),
[INFO] [stdout] 11 | |     };
[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] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | /     match fs::read_to_string(filename) {
[INFO] [stdout] 9  | |         Ok(c) => return Ok(String::from(c)),
[INFO] [stdout] 10 | |         Err(why) => return Err(why),
[INFO] [stdout] 11 | |     };
[INFO] [stdout]    | |_____^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `likh` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 `likh` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "88c0337f08cc2afe9caa46a9f53280a9ee9c7fd7afe6fb3cdf5e9b850e9c2504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88c0337f08cc2afe9caa46a9f53280a9ee9c7fd7afe6fb3cdf5e9b850e9c2504", kill_on_drop: false }`
[INFO] [stdout] 88c0337f08cc2afe9caa46a9f53280a9ee9c7fd7afe6fb3cdf5e9b850e9c2504