[INFO] fetching crate stacker 0.1.15... [INFO] checking stacker-0.1.15 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate stacker 0.1.15 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate stacker 0.1.15 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 stacker 0.1.15 [INFO] finished tweaking crates.io crate stacker 0.1.15 [INFO] tweaked toml for crates.io crate stacker 0.1.15 written to /workspace/builds/worker-4-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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 8 packages [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] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6f328292bf63dc0f7a58d4c911f6013f1012b36b7ab3cc822b7e7ca6f4ef9973 [INFO] running `Command { std: "docker" "start" "-a" "6f328292bf63dc0f7a58d4c911f6013f1012b36b7ab3cc822b7e7ca6f4ef9973", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6f328292bf63dc0f7a58d4c911f6013f1012b36b7ab3cc822b7e7ca6f4ef9973", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f328292bf63dc0f7a58d4c911f6013f1012b36b7ab3cc822b7e7ca6f4ef9973", kill_on_drop: false }` [INFO] [stdout] 6f328292bf63dc0f7a58d4c911f6013f1012b36b7ab3cc822b7e7ca6f4ef9973 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5fc022837857bcd8627515693a7dbe2c2555f4f7fcf8dbf74c97ce5ef19449e3 [INFO] running `Command { std: "docker" "start" "-a" "5fc022837857bcd8627515693a7dbe2c2555f4f7fcf8dbf74c97ce5ef19449e3", kill_on_drop: false }` [INFO] [stderr] Compiling psm v0.1.21 [INFO] [stderr] Compiling stacker v0.1.15 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/simple.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | drop(x); [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `[u8; 50000]` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s [INFO] running `Command { std: "docker" "inspect" "5fc022837857bcd8627515693a7dbe2c2555f4f7fcf8dbf74c97ce5ef19449e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5fc022837857bcd8627515693a7dbe2c2555f4f7fcf8dbf74c97ce5ef19449e3", kill_on_drop: false }` [INFO] [stdout] 5fc022837857bcd8627515693a7dbe2c2555f4f7fcf8dbf74c97ce5ef19449e3 [INFO] checking stacker-0.1.15 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate stacker 0.1.15 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate stacker 0.1.15 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 stacker 0.1.15 [INFO] finished tweaking crates.io crate stacker 0.1.15 [INFO] tweaked toml for crates.io crate stacker 0.1.15 written to /workspace/builds/worker-4-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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] eb8e52be1021164eb8debcc54187f60cf46b383b9ae0e5c51ba291f1b4ccc44f [INFO] running `Command { std: "docker" "start" "-a" "eb8e52be1021164eb8debcc54187f60cf46b383b9ae0e5c51ba291f1b4ccc44f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eb8e52be1021164eb8debcc54187f60cf46b383b9ae0e5c51ba291f1b4ccc44f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb8e52be1021164eb8debcc54187f60cf46b383b9ae0e5c51ba291f1b4ccc44f", kill_on_drop: false }` [INFO] [stdout] eb8e52be1021164eb8debcc54187f60cf46b383b9ae0e5c51ba291f1b4ccc44f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d5f01a6a0560c57f9a7d4514aede33bc1761896d3e4d1c1e1e20e9dba0058df3 [INFO] running `Command { std: "docker" "start" "-a" "d5f01a6a0560c57f9a7d4514aede33bc1761896d3e4d1c1e1e20e9dba0058df3", kill_on_drop: false }` [INFO] [stderr] Compiling psm v0.1.21 [INFO] [stderr] Compiling stacker v0.1.15 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> tests/simple.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | drop(x); [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `[u8; 50000]` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed for `Result<_, Box>` [INFO] [stdout] --> tests/smoke.rs:92:13 [INFO] [stdout] | [INFO] [stdout] 92 | let panic_result = std::panic::catch_unwind(|| panic!()); [INFO] [stdout] | ^^^^^^^^^^^^ ------------------------------------- type must be known at this point [INFO] [stdout] | [INFO] [stdout] help: consider giving `panic_result` an explicit type, where the type for type parameter `R` is specified [INFO] [stdout] | [INFO] [stdout] 92 | let panic_result: Result<_, Box> = std::panic::catch_unwind(|| panic!()); [INFO] [stdout] | ++++++++++++++++++++++++++++++++ [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 `stacker` (test "smoke") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d5f01a6a0560c57f9a7d4514aede33bc1761896d3e4d1c1e1e20e9dba0058df3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5f01a6a0560c57f9a7d4514aede33bc1761896d3e4d1c1e1e20e9dba0058df3", kill_on_drop: false }` [INFO] [stdout] d5f01a6a0560c57f9a7d4514aede33bc1761896d3e4d1c1e1e20e9dba0058df3