[INFO] fetching crate rlog 1.0.0...
[INFO] checking rlog-1.0.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rlog 1.0.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate rlog 1.0.0 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 rlog 1.0.0
[INFO] finished tweaking crates.io crate rlog 1.0.0
[INFO] tweaked toml for crates.io crate rlog 1.0.0 written to /workspace/builds/worker-5-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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[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-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] ed2f83857ba22df0df98fde1ef432810d44aeba39c6b98310d9f8addc56b9b10
[INFO] running `Command { std: "docker" "start" "-a" "ed2f83857ba22df0df98fde1ef432810d44aeba39c6b98310d9f8addc56b9b10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed2f83857ba22df0df98fde1ef432810d44aeba39c6b98310d9f8addc56b9b10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed2f83857ba22df0df98fde1ef432810d44aeba39c6b98310d9f8addc56b9b10", kill_on_drop: false }`
[INFO] [stdout] ed2f83857ba22df0df98fde1ef432810d44aeba39c6b98310d9f8addc56b9b10
[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] 15324614f9bdba43e1357b9983af3a84372f2ff6a4754967bdd9d70373dec67f
[INFO] running `Command { std: "docker" "start" "-a" "15324614f9bdba43e1357b9983af3a84372f2ff6a4754967bdd9d70373dec67f", kill_on_drop: false }`
[INFO] [stderr]     Checking rlog v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "15324614f9bdba43e1357b9983af3a84372f2ff6a4754967bdd9d70373dec67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15324614f9bdba43e1357b9983af3a84372f2ff6a4754967bdd9d70373dec67f", kill_on_drop: false }`
[INFO] [stdout] 15324614f9bdba43e1357b9983af3a84372f2ff6a4754967bdd9d70373dec67f
[INFO] checking rlog-1.0.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate rlog 1.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate rlog 1.0.0 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 rlog 1.0.0
[INFO] finished tweaking crates.io crate rlog 1.0.0
[INFO] tweaked toml for crates.io crate rlog 1.0.0 written to /workspace/builds/worker-5-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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[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] [stderr]     Blocking waiting for file lock on package cache
[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] eb9b4380914976a70f20e7c2163ac5d81ef1987f278915335c74813f00a9cefe
[INFO] running `Command { std: "docker" "start" "-a" "eb9b4380914976a70f20e7c2163ac5d81ef1987f278915335c74813f00a9cefe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb9b4380914976a70f20e7c2163ac5d81ef1987f278915335c74813f00a9cefe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb9b4380914976a70f20e7c2163ac5d81ef1987f278915335c74813f00a9cefe", kill_on_drop: false }`
[INFO] [stdout] eb9b4380914976a70f20e7c2163ac5d81ef1987f278915335c74813f00a9cefe
[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] 50d1f12cb86b80e2464fd3b9c765f4e38e7c2011dead13b706ed9e8486ae5d72
[INFO] running `Command { std: "docker" "start" "-a" "50d1f12cb86b80e2464fd3b9c765f4e38e7c2011dead13b706ed9e8486ae5d72", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking rlog v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> tests/testenv/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     match contents.find(&msg) {
[INFO] [stdout] 20 | |         Some(_) => {
[INFO] [stdout] 21 | |             del_file(path);
[INFO] [stdout] 22 | |             return true;
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |         }
[INFO] [stdout] 27 | |     };
[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] [stderr] error: could not compile `rlog` (test "tests") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "50d1f12cb86b80e2464fd3b9c765f4e38e7c2011dead13b706ed9e8486ae5d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50d1f12cb86b80e2464fd3b9c765f4e38e7c2011dead13b706ed9e8486ae5d72", kill_on_drop: false }`
[INFO] [stdout] 50d1f12cb86b80e2464fd3b9c765f4e38e7c2011dead13b706ed9e8486ae5d72