[INFO] fetching crate smalloca 0.1.0... [INFO] testing smalloca-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1 [INFO] extracting crate smalloca 0.1.0 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate smalloca 0.1.0 [INFO] finished tweaking crates.io crate smalloca 0.1.0 [INFO] tweaked toml for crates.io crate smalloca 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate smalloca 0.1.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 3 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7f79e9d701149efac00547db2a516b423bfdfe2816cd3b7905c0a853e6985c78 [INFO] running `Command { std: "docker" "start" "-a" "7f79e9d701149efac00547db2a516b423bfdfe2816cd3b7905c0a853e6985c78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7f79e9d701149efac00547db2a516b423bfdfe2816cd3b7905c0a853e6985c78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f79e9d701149efac00547db2a516b423bfdfe2816cd3b7905c0a853e6985c78", kill_on_drop: false }` [INFO] [stdout] 7f79e9d701149efac00547db2a516b423bfdfe2816cd3b7905c0a853e6985c78 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e690035f773b4f827175a70b85b965476bc92b9e5f5417b6d365508f30f21af3 [INFO] running `Command { std: "docker" "start" "-a" "e690035f773b4f827175a70b85b965476bc92b9e5f5417b6d365508f30f21af3", kill_on_drop: false }` [INFO] [stderr] Compiling smalloca v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `std` [INFO] [stdout] --> src/lib.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | #![cfg_attr(not(std), no_std)] [INFO] [stdout] | ^^^ help: found config with similar value: `feature = "std"` [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `core::mem::replace` that must be used [INFO] [stdout] --> src/lib.rs:58:18 [INFO] [stdout] | [INFO] [stdout] 58 | unsafe { core::mem::replace::(&mut smalloca[i], core::mem::zeroed::()) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 58 | unsafe { let _ = core::mem::replace::(&mut smalloca[i], core::mem::zeroed::()); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.11s [INFO] running `Command { std: "docker" "inspect" "e690035f773b4f827175a70b85b965476bc92b9e5f5417b6d365508f30f21af3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e690035f773b4f827175a70b85b965476bc92b9e5f5417b6d365508f30f21af3", kill_on_drop: false }` [INFO] [stdout] e690035f773b4f827175a70b85b965476bc92b9e5f5417b6d365508f30f21af3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1addbd570a36e207d53d383dbd33b0812c699610fb475c4c705a45e1f39a59fa [INFO] running `Command { std: "docker" "start" "-a" "1addbd570a36e207d53d383dbd33b0812c699610fb475c4c705a45e1f39a59fa", kill_on_drop: false }` [INFO] [stdout] warning: unexpected `cfg` condition name: `std` [INFO] [stdout] --> src/lib.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | #![cfg_attr(not(std), no_std)] [INFO] [stdout] | ^^^ help: found config with similar value: `feature = "std"` [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `core::mem::replace` that must be used [INFO] [stdout] --> src/lib.rs:58:18 [INFO] [stdout] | [INFO] [stdout] 58 | unsafe { core::mem::replace::(&mut smalloca[i], core::mem::zeroed::()) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 58 | unsafe { let _ = core::mem::replace::(&mut smalloca[i], core::mem::zeroed::()); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling smalloca v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `std` [INFO] [stdout] --> src/lib.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | #![cfg_attr(not(std), no_std)] [INFO] [stdout] | ^^^ help: found config with similar value: `feature = "std"` [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `genesis` is never read [INFO] [stdout] --> src/lib.rs:171:9 [INFO] [stdout] | [INFO] [stdout] 170 | struct MemSafetyTester { [INFO] [stdout] | --------------- field in this struct [INFO] [stdout] 171 | genesis: isize, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MemSafetyTester` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `core::mem::replace` that must be used [INFO] [stdout] --> src/lib.rs:58:18 [INFO] [stdout] | [INFO] [stdout] 58 | unsafe { core::mem::replace::(&mut smalloca[i], core::mem::zeroed::()) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 58 | unsafe { let _ = core::mem::replace::(&mut smalloca[i], core::mem::zeroed::()); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `Command { std: "docker" "inspect" "1addbd570a36e207d53d383dbd33b0812c699610fb475c4c705a45e1f39a59fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1addbd570a36e207d53d383dbd33b0812c699610fb475c4c705a45e1f39a59fa", kill_on_drop: false }` [INFO] [stdout] 1addbd570a36e207d53d383dbd33b0812c699610fb475c4c705a45e1f39a59fa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 1f6d50cd70e52c39013f98e52dc4fcaa99a6a11c1ed7ab7562abd7ae3db2235c [INFO] running `Command { std: "docker" "start" "-a" "1f6d50cd70e52c39013f98e52dc4fcaa99a6a11c1ed7ab7562abd7ae3db2235c", kill_on_drop: false }` [INFO] [stderr] warning: unexpected `cfg` condition name: `std` [INFO] [stderr] --> src/lib.rs:1:17 [INFO] [stderr] | [INFO] [stderr] 1 | #![cfg_attr(not(std), no_std)] [INFO] [stderr] | ^^^ help: found config with similar value: `feature = "std"` [INFO] [stderr] | [INFO] [stderr] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs` [INFO] [stderr] = note: see for more information about checking conditional configuration [INFO] [stderr] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `core::mem::replace` that must be used [INFO] [stderr] --> src/lib.rs:58:18 [INFO] [stderr] | [INFO] [stderr] 58 | unsafe { core::mem::replace::(&mut smalloca[i], core::mem::zeroed::()) }; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 58 | unsafe { let _ = core::mem::replace::(&mut smalloca[i], core::mem::zeroed::()); }; [INFO] [stderr] | +++++++ + [INFO] [stderr] [INFO] [stderr] warning: `smalloca` (lib) generated 2 warnings [INFO] [stderr] warning: field `genesis` is never read [INFO] [stderr] --> src/lib.rs:171:9 [INFO] [stderr] | [INFO] [stderr] 170 | struct MemSafetyTester { [INFO] [stderr] | --------------- field in this struct [INFO] [stderr] 171 | genesis: isize, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `MemSafetyTester` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `smalloca` (lib test) generated 3 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/smalloca-90121045add591f6) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test tests::dyn_smalloca_test ... ok [INFO] [stdout] test tests::inner_fucntion_call_test ... ok [INFO] [stdout] test tests::memsafety_test_default ... ok [INFO] [stdout] test tests::return_test ... ok [INFO] [stdout] test tests::memsafety_test_clone ... ok [INFO] [stderr] fatal runtime error: failed to initiate panic, error 3, aborting [INFO] [stderr] error: test failed, to rerun pass `--lib` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/deps/smalloca-90121045add591f6` (signal: 6, SIGABRT: process abort signal) [INFO] running `Command { std: "docker" "inspect" "1f6d50cd70e52c39013f98e52dc4fcaa99a6a11c1ed7ab7562abd7ae3db2235c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f6d50cd70e52c39013f98e52dc4fcaa99a6a11c1ed7ab7562abd7ae3db2235c", kill_on_drop: false }` [INFO] [stdout] 1f6d50cd70e52c39013f98e52dc4fcaa99a6a11c1ed7ab7562abd7ae3db2235c