[INFO] fetching crate mut_guard 0.1.0... [INFO] testing mut_guard-0.1.0 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate mut_guard 0.1.0 into /workspace/builds/worker-108/source [INFO] validating manifest of crates.io crate mut_guard 0.1.0 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mut_guard 0.1.0 [INFO] finished tweaking crates.io crate mut_guard 0.1.0 [INFO] tweaked toml for crates.io crate mut_guard 0.1.0 written to /workspace/builds/worker-108/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 504d2a5e76d6a1166ec5ebdb3df459df973fc8901f2ee1c63474dac032bd4cd7 [INFO] running `Command { std: "docker" "start" "-a" "504d2a5e76d6a1166ec5ebdb3df459df973fc8901f2ee1c63474dac032bd4cd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "504d2a5e76d6a1166ec5ebdb3df459df973fc8901f2ee1c63474dac032bd4cd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "504d2a5e76d6a1166ec5ebdb3df459df973fc8901f2ee1c63474dac032bd4cd7", kill_on_drop: false }` [INFO] [stdout] 504d2a5e76d6a1166ec5ebdb3df459df973fc8901f2ee1c63474dac032bd4cd7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f55d43a5fd423f3f462e1cc25983d14008ac4cfb6cd5dd3838d4dd85f9dd9637 [INFO] running `Command { std: "docker" "start" "-a" "f55d43a5fd423f3f462e1cc25983d14008ac4cfb6cd5dd3838d4dd85f9dd9637", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling mut_guard v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:211:12 [INFO] [stdout] | [INFO] [stdout] 211 | f: Box<'a + FnMut(&mut T)>, [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] 211 - f: Box<'a + FnMut(&mut T)>, [INFO] [stdout] 211 + f: Box, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.41s [INFO] running `Command { std: "docker" "inspect" "f55d43a5fd423f3f462e1cc25983d14008ac4cfb6cd5dd3838d4dd85f9dd9637", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f55d43a5fd423f3f462e1cc25983d14008ac4cfb6cd5dd3838d4dd85f9dd9637", kill_on_drop: false }` [INFO] [stdout] f55d43a5fd423f3f462e1cc25983d14008ac4cfb6cd5dd3838d4dd85f9dd9637 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c515d3df9d488c9f9272b221cb8d567f528c223948cba377896bb36f3671679b [INFO] running `Command { std: "docker" "start" "-a" "c515d3df9d488c9f9272b221cb8d567f528c223948cba377896bb36f3671679b", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:211:12 [INFO] [stdout] | [INFO] [stdout] 211 | f: Box<'a + FnMut(&mut T)>, [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] 211 - f: Box<'a + FnMut(&mut T)>, [INFO] [stdout] 211 + f: Box, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling mut_guard v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:211:12 [INFO] [stdout] | [INFO] [stdout] 211 | f: Box<'a + FnMut(&mut T)>, [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] 211 - f: Box<'a + FnMut(&mut T)>, [INFO] [stdout] 211 + f: Box, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 14.40s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/mut_guard-2d6403c18911846b) [INFO] running `Command { std: "docker" "inspect" "c515d3df9d488c9f9272b221cb8d567f528c223948cba377896bb36f3671679b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c515d3df9d488c9f9272b221cb8d567f528c223948cba377896bb36f3671679b", kill_on_drop: false }` [INFO] [stdout] c515d3df9d488c9f9272b221cb8d567f528c223948cba377896bb36f3671679b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 592fae8a2ebedfdfd9c73356635f97886d6b8cfec136d5de4dc33f32da88fe88 [INFO] running `Command { std: "docker" "start" "-a" "592fae8a2ebedfdfd9c73356635f97886d6b8cfec136d5de4dc33f32da88fe88", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:211:12 [INFO] [stderr] | [INFO] [stderr] 211 | f: Box<'a + FnMut(&mut T)>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 211 - f: Box<'a + FnMut(&mut T)>, [INFO] [stderr] 211 + f: Box, [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `mut_guard` (lib) generated 1 warning [INFO] [stderr] warning: `mut_guard` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mut_guard-2d6403c18911846b) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test tests::count_access ... ok [INFO] [stdout] test tests::bank ... ok [INFO] [stdout] test tests::invariant_bank - should panic ... ok [INFO] [stdout] test tests::less_than - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests mut_guard [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/lib.rs - (line 17) ... ok [INFO] [stdout] test src/lib.rs - (line 57) ... ok [INFO] [stdout] test src/lib.rs - (line 85) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.03s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "592fae8a2ebedfdfd9c73356635f97886d6b8cfec136d5de4dc33f32da88fe88", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "592fae8a2ebedfdfd9c73356635f97886d6b8cfec136d5de4dc33f32da88fe88", kill_on_drop: false }` [INFO] [stdout] 592fae8a2ebedfdfd9c73356635f97886d6b8cfec136d5de4dc33f32da88fe88