[INFO] cloning repository https://github.com/alexcrichton/wasm-gc [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexcrichton/wasm-gc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Fwasm-gc", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Fwasm-gc'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] deb1c6dc3aec39a3f2bdc5595266212ead448490 [INFO] checking alexcrichton/wasm-gc against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexcrichton%2Fwasm-gc" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/alexcrichton/wasm-gc on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/alexcrichton/wasm-gc [INFO] finished tweaking git repo https://github.com/alexcrichton/wasm-gc [INFO] tweaked toml for git repo https://github.com/alexcrichton/wasm-gc written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/alexcrichton/wasm-gc 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: /workspace/builds/worker-2-tc1/source/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-2-tc1/source/wasm-gc-capi/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /workspace/builds/worker-2-tc1/source/wasm-gc-api/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded byteorder v1.2.6 [INFO] [stderr] Downloaded env_logger v0.5.13 [INFO] [stderr] Downloaded humantime v1.1.1 [INFO] [stderr] Downloaded version_check v0.1.4 [INFO] [stderr] Downloaded winapi-util v0.1.1 [INFO] [stderr] Downloaded log v0.4.4 [INFO] [stderr] Downloaded rustc-demangle v0.1.9 [INFO] [stderr] Downloaded quote v0.6.8 [INFO] [stderr] Downloaded ryu v0.2.6 [INFO] [stderr] Downloaded termcolor v1.0.2 [INFO] [stderr] Downloaded itoa v0.4.2 [INFO] [stderr] Downloaded syn v0.15.1 [INFO] [stderr] Downloaded serde_json v1.0.26 [INFO] [stderr] Downloaded serde v1.0.75 [INFO] [stderr] Downloaded serde_derive v1.0.75 [INFO] [stderr] Downloaded proc-macro2 v0.4.13 [INFO] [stderr] Downloaded winapi v0.3.5 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.21 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.21 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.21 [INFO] [stderr] Downloaded wasm-bindgen v0.2.21 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.21 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 20a85648c2ec2794083e466baeb70f4fa7cb3f7e35edcff6feb868b8b4e72b1d [INFO] running `Command { std: "docker" "start" "-a" "20a85648c2ec2794083e466baeb70f4fa7cb3f7e35edcff6feb868b8b4e72b1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "20a85648c2ec2794083e466baeb70f4fa7cb3f7e35edcff6feb868b8b4e72b1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "20a85648c2ec2794083e466baeb70f4fa7cb3f7e35edcff6feb868b8b4e72b1d", kill_on_drop: false }` [INFO] [stdout] 20a85648c2ec2794083e466baeb70f4fa7cb3f7e35edcff6feb868b8b4e72b1d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4cf20472d1a035c980a14e529c4d13682d722e5a368463220938551927f0979d [INFO] running `Command { std: "docker" "start" "-a" "4cf20472d1a035c980a14e529c4d13682d722e5a368463220938551927f0979d", kill_on_drop: false }` [INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/wasm-gc-capi/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] warning: /opt/rustwide/workdir/wasm-gc-api/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking cfg-if v0.1.5 [INFO] [stderr] Checking byteorder v1.2.6 [INFO] [stderr] Checking rustc-demangle v0.1.9 [INFO] [stderr] Checking libc v0.2.43 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking termcolor v1.0.2 [INFO] [stderr] Checking log v0.4.4 [INFO] [stderr] Checking humantime v1.1.1 [INFO] [stderr] Checking getopts v0.2.18 [INFO] [stderr] Checking parity-wasm v0.32.0 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking env_logger v0.5.13 [INFO] [stderr] Checking wasm-gc-api v0.1.11 (/opt/rustwide/workdir/wasm-gc-api) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> wasm-gc-api/src/lib.rs:63:52 [INFO] [stdout] | [INFO] [stdout] 63 | if let Some(module) = (&mut module as &mut Any).downcast_mut() { [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] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 63 | if let Some(module) = (&mut module as &mut dyn Any).downcast_mut() { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> wasm-gc-api/src/lib.rs:91:36 [INFO] [stdout] | [INFO] [stdout] 91 | let module = self.0 as Box; [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: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 91 | let module = self.0 as Box; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> wasm-gc-api/src/lib.rs:63:52 [INFO] [stdout] | [INFO] [stdout] 63 | if let Some(module) = (&mut module as &mut Any).downcast_mut() { [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] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 63 | if let Some(module) = (&mut module as &mut dyn Any).downcast_mut() { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> wasm-gc-api/src/lib.rs:91:36 [INFO] [stdout] | [INFO] [stdout] 91 | let module = self.0 as Box; [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: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 91 | let module = self.0 as Box; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> wasm-gc-api/src/gc.rs:184:14 [INFO] [stdout] | [INFO] [stdout] 184 | Imported(&'a MemoryType), [INFO] [stdout] | -------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 184 | Imported(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> wasm-gc-api/src/gc.rs:184:14 [INFO] [stdout] | [INFO] [stdout] 184 | Imported(&'a MemoryType), [INFO] [stdout] | -------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 184 | Imported(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> wasm-gc-api/src/gc.rs:317:9 [INFO] [stdout] | [INFO] [stdout] 317 | drop(table); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&TableType` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 317 - drop(table); [INFO] [stdout] 317 + let _ = table; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> wasm-gc-api/src/gc.rs:611:9 [INFO] [stdout] | [INFO] [stdout] 611 | drop(t); [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parity_wasm::elements::ValueType` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 611 - drop(t); [INFO] [stdout] 611 + let _ = t; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> wasm-gc-api/src/gc.rs:647:13 [INFO] [stdout] | [INFO] [stdout] 647 | drop(t); // TODO [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut TableType` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 647 - drop(t); // TODO [INFO] [stdout] 647 + let _ = t; // TODO [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> wasm-gc-api/src/gc.rs:655:13 [INFO] [stdout] | [INFO] [stdout] 655 | drop(m); // TODO [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parity_wasm::elements::MemoryType` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 655 - drop(m); // TODO [INFO] [stdout] 655 + let _ = m; // TODO [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> wasm-gc-api/src/gc.rs:674:9 [INFO] [stdout] | [INFO] [stdout] 674 | drop(s); [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parity_wasm::elements::GlobalType` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 674 - drop(s); [INFO] [stdout] 674 + let _ = s; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> wasm-gc-api/src/gc.rs:317:9 [INFO] [stdout] | [INFO] [stdout] 317 | drop(table); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&TableType` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 317 - drop(table); [INFO] [stdout] 317 + let _ = table; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> wasm-gc-api/src/gc.rs:611:9 [INFO] [stdout] | [INFO] [stdout] 611 | drop(t); [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parity_wasm::elements::ValueType` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 611 - drop(t); [INFO] [stdout] 611 + let _ = t; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> wasm-gc-api/src/gc.rs:647:13 [INFO] [stdout] | [INFO] [stdout] 647 | drop(t); // TODO [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut TableType` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 647 - drop(t); // TODO [INFO] [stdout] 647 + let _ = t; // TODO [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> wasm-gc-api/src/gc.rs:655:13 [INFO] [stdout] | [INFO] [stdout] 655 | drop(m); // TODO [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parity_wasm::elements::MemoryType` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 655 - drop(m); // TODO [INFO] [stdout] 655 + let _ = m; // TODO [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> wasm-gc-api/src/gc.rs:674:9 [INFO] [stdout] | [INFO] [stdout] 674 | drop(s); [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut parity_wasm::elements::GlobalType` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 674 - drop(s); [INFO] [stdout] 674 + let _ = s; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking wasm-gc-capi v0.1.0 (/opt/rustwide/workdir/wasm-gc-capi) [INFO] [stderr] Checking wasm-gc v0.1.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:22:28 [INFO] [stdout] | [INFO] [stdout] 22 | Err(f) => { panic!(f.to_string()) } [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 22 | Err(f) => { panic!("{}", f.to_string()) } [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:22:28 [INFO] [stdout] | [INFO] [stdout] 22 | Err(f) => { panic!(f.to_string()) } [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 22 | Err(f) => { panic!("{}", f.to_string()) } [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.87s [INFO] running `Command { std: "docker" "inspect" "4cf20472d1a035c980a14e529c4d13682d722e5a368463220938551927f0979d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4cf20472d1a035c980a14e529c4d13682d722e5a368463220938551927f0979d", kill_on_drop: false }` [INFO] [stdout] 4cf20472d1a035c980a14e529c4d13682d722e5a368463220938551927f0979d