[INFO] fetching crate rbt 0.1.0... [INFO] checking rbt-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate rbt 0.1.0 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate rbt 0.1.0 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 rbt 0.1.0 [INFO] finished tweaking crates.io crate rbt 0.1.0 [INFO] tweaked toml for crates.io crate rbt 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate crates.io crate rbt 0.1.0 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 nix v0.19.0 [INFO] [stderr] Downloaded shared_memory v0.11.3 [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] 1a1856d63304575a224bfad8375bc287eed9011b1cea05366915e2bebbdb51cf [INFO] running `Command { std: "docker" "start" "-a" "1a1856d63304575a224bfad8375bc287eed9011b1cea05366915e2bebbdb51cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1a1856d63304575a224bfad8375bc287eed9011b1cea05366915e2bebbdb51cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a1856d63304575a224bfad8375bc287eed9011b1cea05366915e2bebbdb51cf", kill_on_drop: false }` [INFO] [stdout] 1a1856d63304575a224bfad8375bc287eed9011b1cea05366915e2bebbdb51cf [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] 13882e1124e608c4e297a7649ce515fe9d00241beecdab9cf18f6ff7b359e23d [INFO] running `Command { std: "docker" "start" "-a" "13882e1124e608c4e297a7649ce515fe9d00241beecdab9cf18f6ff7b359e23d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.79 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Checking ppv-lite86 v0.2.9 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking nix v0.19.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking shared_memory v0.11.3 [INFO] [stderr] Checking rbt v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait `Topic` is never used [INFO] [stdout] --> src/main.rs:44:7 [INFO] [stdout] | [INFO] [stdout] 44 | trait Topic { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Topic` is never used [INFO] [stdout] --> src/main.rs:44:7 [INFO] [stdout] | [INFO] [stdout] 44 | trait Topic { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Root` is never constructed [INFO] [stdout] --> src/main.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 48 | struct Root { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Root` is never constructed [INFO] [stdout] --> src/main.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 48 | struct Root { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.77s [INFO] running `Command { std: "docker" "inspect" "13882e1124e608c4e297a7649ce515fe9d00241beecdab9cf18f6ff7b359e23d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "13882e1124e608c4e297a7649ce515fe9d00241beecdab9cf18f6ff7b359e23d", kill_on_drop: false }` [INFO] [stdout] 13882e1124e608c4e297a7649ce515fe9d00241beecdab9cf18f6ff7b359e23d [INFO] checking rbt-0.1.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate rbt 0.1.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate rbt 0.1.0 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 rbt 0.1.0 [INFO] finished tweaking crates.io crate rbt 0.1.0 [INFO] tweaked toml for crates.io crate rbt 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate crates.io crate rbt 0.1.0 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] 8d6c316c2613d037cd327e4af3cda19161f9b23c31dd010cd1822d31873f59b7 [INFO] running `Command { std: "docker" "start" "-a" "8d6c316c2613d037cd327e4af3cda19161f9b23c31dd010cd1822d31873f59b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8d6c316c2613d037cd327e4af3cda19161f9b23c31dd010cd1822d31873f59b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d6c316c2613d037cd327e4af3cda19161f9b23c31dd010cd1822d31873f59b7", kill_on_drop: false }` [INFO] [stdout] 8d6c316c2613d037cd327e4af3cda19161f9b23c31dd010cd1822d31873f59b7 [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] b2d8a6af2052c1676920a0a82f35bdf984c094b3a3f513c1631b9cc1bfddcbdf [INFO] running `Command { std: "docker" "start" "-a" "b2d8a6af2052c1676920a0a82f35bdf984c094b3a3f513c1631b9cc1bfddcbdf", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.79 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Checking ppv-lite86 v0.2.9 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking nix v0.19.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking shared_memory v0.11.3 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/shared_memory-0.11.3/src/lib.rs:100:21 [INFO] [stdout] | [INFO] [stdout] 100 | / match os_impl::create_mapping(&cur_id, self.size) { [INFO] [stdout] 101 | | Err(ShmemError::MappingIdExists) => continue, [INFO] [stdout] 102 | | Ok(m) => break m, [INFO] [stdout] 103 | | Err(e) => return Err(e), [INFO] [stdout] 104 | | }; [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 `shared_memory` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "b2d8a6af2052c1676920a0a82f35bdf984c094b3a3f513c1631b9cc1bfddcbdf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b2d8a6af2052c1676920a0a82f35bdf984c094b3a3f513c1631b9cc1bfddcbdf", kill_on_drop: false }` [INFO] [stdout] b2d8a6af2052c1676920a0a82f35bdf984c094b3a3f513c1631b9cc1bfddcbdf