[INFO] fetching crate overflow-error 0.4.1... [INFO] testing overflow-error-0.4.1 against 1.60.0 for beta-1.61-1 [INFO] extracting crate overflow-error 0.4.1 into /workspace/builds/worker-14/source [INFO] validating manifest of crates.io crate overflow-error 0.4.1 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate overflow-error 0.4.1 [INFO] finished tweaking crates.io crate overflow-error 0.4.1 [INFO] tweaked toml for crates.io crate overflow-error 0.4.1 written to /workspace/builds/worker-14/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3d6ef994d626044013f4de0cf84889984f58fd1361d80970f1acdf0dca5bd830 [INFO] running `Command { std: "docker" "start" "-a" "3d6ef994d626044013f4de0cf84889984f58fd1361d80970f1acdf0dca5bd830", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3d6ef994d626044013f4de0cf84889984f58fd1361d80970f1acdf0dca5bd830", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d6ef994d626044013f4de0cf84889984f58fd1361d80970f1acdf0dca5bd830", kill_on_drop: false }` [INFO] [stdout] 3d6ef994d626044013f4de0cf84889984f58fd1361d80970f1acdf0dca5bd830 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e32869fda1c5a4f272cbecf982d68f7c3b80da30f6aa2f4023a844e4449c777f [INFO] running `Command { std: "docker" "start" "-a" "e32869fda1c5a4f272cbecf982d68f7c3b80da30f6aa2f4023a844e4449c777f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling overflow-error v0.4.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | #![feature(never_type)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:87:32 [INFO] [stdout] | [INFO] [stdout] 87 | fn cause(&self) -> Option<&Fail> { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 87 - fn cause(&self) -> Option<&Fail> { [INFO] [stdout] 87 + fn cause(&self) -> Option<&dyn Fail> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:133:32 [INFO] [stdout] | [INFO] [stdout] 133 | fn cause(&self) -> Option<&Fail> { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 133 - fn cause(&self) -> Option<&Fail> { [INFO] [stdout] 133 + fn cause(&self) -> Option<&dyn Fail> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `overflow-error` due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "e32869fda1c5a4f272cbecf982d68f7c3b80da30f6aa2f4023a844e4449c777f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e32869fda1c5a4f272cbecf982d68f7c3b80da30f6aa2f4023a844e4449c777f", kill_on_drop: false }` [INFO] [stdout] e32869fda1c5a4f272cbecf982d68f7c3b80da30f6aa2f4023a844e4449c777f