[INFO] fetching crate frankencell 0.2.0... [INFO] testing frankencell-0.2.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1 [INFO] extracting crate frankencell 0.2.0 into /workspace/builds/worker-3-tc1/source [INFO] started tweaking crates.io crate frankencell 0.2.0 [INFO] finished tweaking crates.io crate frankencell 0.2.0 [INFO] tweaked toml for crates.io crate frankencell 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate frankencell 0.2.0 on toolchain 562dee4820c458d823175268e41601d4c060588a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate frankencell 0.2.0 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6dd45c6cda4c9fdb89983a6bcf1c4d276dd4769a3e8d578e08c91cbb9de4e71e [INFO] running `Command { std: "docker" "start" "-a" "6dd45c6cda4c9fdb89983a6bcf1c4d276dd4769a3e8d578e08c91cbb9de4e71e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6dd45c6cda4c9fdb89983a6bcf1c4d276dd4769a3e8d578e08c91cbb9de4e71e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6dd45c6cda4c9fdb89983a6bcf1c4d276dd4769a3e8d578e08c91cbb9de4e71e", kill_on_drop: false }` [INFO] [stdout] 6dd45c6cda4c9fdb89983a6bcf1c4d276dd4769a3e8d578e08c91cbb9de4e71e [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c64f946f7785afa27768600006e24feee07a8c67945c9168152b5a0c553af263 [INFO] running `Command { std: "docker" "start" "-a" "c64f946f7785afa27768600006e24feee07a8c67945c9168152b5a0c553af263", kill_on_drop: false }` [INFO] [stderr] Compiling frankencell v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] running `Command { std: "docker" "inspect" "c64f946f7785afa27768600006e24feee07a8c67945c9168152b5a0c553af263", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c64f946f7785afa27768600006e24feee07a8c67945c9168152b5a0c553af263", kill_on_drop: false }` [INFO] [stdout] c64f946f7785afa27768600006e24feee07a8c67945c9168152b5a0c553af263 [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5730023f6c271bb0c1e0767df690b3ff4807252612b06c05021381a66d888f1a [INFO] running `Command { std: "docker" "start" "-a" "5730023f6c271bb0c1e0767df690b3ff4807252612b06c05021381a66d888f1a", kill_on_drop: false }` [INFO] [stderr] Compiling frankencell v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `init_tokens` [INFO] [stdout] --> src/lib.rs:133:31 [INFO] [stdout] | [INFO] [stdout] 133 | use crate::{TokenBuilder, init_tokens, Cell}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> examples/arena.rs:88:5 [INFO] [stdout] | [INFO] [stdout] 88 | drop(b); [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&char` [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] 88 - drop(b); [INFO] [stdout] 88 + let _ = b; [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] --> examples/arena.rs:89:5 [INFO] [stdout] | [INFO] [stdout] 89 | drop(a); [INFO] [stdout] | ^^^^^-^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut char` [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 89 - drop(a); [INFO] [stdout] 89 + let _ = a; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s [INFO] running `Command { std: "docker" "inspect" "5730023f6c271bb0c1e0767df690b3ff4807252612b06c05021381a66d888f1a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5730023f6c271bb0c1e0767df690b3ff4807252612b06c05021381a66d888f1a", kill_on_drop: false }` [INFO] [stdout] 5730023f6c271bb0c1e0767df690b3ff4807252612b06c05021381a66d888f1a [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] aa8103fd828e381a2231b81b10453be23ca58841dc9e7b4aaf31878b2ccb8dfa [INFO] running `Command { std: "docker" "start" "-a" "aa8103fd828e381a2231b81b10453be23ca58841dc9e7b4aaf31878b2ccb8dfa", kill_on_drop: false }` [INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stderr] --> examples/arena.rs:88:5 [INFO] [stderr] | [INFO] [stderr] 88 | drop(b); [INFO] [stderr] | ^^^^^-^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&char` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dropping_references)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 88 - drop(b); [INFO] [stderr] 88 + let _ = b; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stderr] --> examples/arena.rs:89:5 [INFO] [stderr] | [INFO] [stderr] 89 | drop(a); [INFO] [stderr] | ^^^^^-^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `&mut char` [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 89 - drop(a); [INFO] [stderr] 89 + let _ = a; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused import: `init_tokens` [INFO] [stderr] --> src/lib.rs:133:31 [INFO] [stderr] | [INFO] [stderr] 133 | use crate::{TokenBuilder, init_tokens, Cell}; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `frankencell` (example "arena") generated 2 warnings [INFO] [stderr] warning: `frankencell` (lib test) generated 1 warning (run `cargo fix --lib -p frankencell --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/frankencell-808235273678b437) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test init_tokens_test ... ok [INFO] [stdout] test test_first ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests frankencell [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test src/lib.rs - (line 53) - compile fail ... ok [INFO] [stdout] test src/lib.rs - first (line 97) ... ok [INFO] [stdout] test src/cells.rs - cells::Cell::borrow (line 102) ... ok [INFO] [stdout] test src/cells.rs - cells::Cell::borrow_mut (line 118) ... ok [INFO] [stdout] test src/cells.rs - cells::Cell::new (line 44) ... ok [INFO] [stdout] test src/lib.rs - (line 32) - compile fail ... ok [INFO] [stdout] test src/cells.rs - cells::Cell::get (line 79) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "aa8103fd828e381a2231b81b10453be23ca58841dc9e7b4aaf31878b2ccb8dfa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aa8103fd828e381a2231b81b10453be23ca58841dc9e7b4aaf31878b2ccb8dfa", kill_on_drop: false }` [INFO] [stdout] aa8103fd828e381a2231b81b10453be23ca58841dc9e7b4aaf31878b2ccb8dfa