[INFO] fetching crate simple_ringbuf 0.1.2...
[INFO] testing simple_ringbuf-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate simple_ringbuf 0.1.2 into /workspace/builds/worker-45/source
[INFO] validating manifest of crates.io crate simple_ringbuf 0.1.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple_ringbuf 0.1.2
[INFO] finished tweaking crates.io crate simple_ringbuf 0.1.2
[INFO] tweaked toml for crates.io crate simple_ringbuf 0.1.2 written to /workspace/builds/worker-45/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e95f8c92f19901c5ac78648bed466bfc4e55b81eb426a78110f0feaadda855b9
[INFO] running `Command { std: "docker" "start" "-a" "e95f8c92f19901c5ac78648bed466bfc4e55b81eb426a78110f0feaadda855b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e95f8c92f19901c5ac78648bed466bfc4e55b81eb426a78110f0feaadda855b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e95f8c92f19901c5ac78648bed466bfc4e55b81eb426a78110f0feaadda855b9", kill_on_drop: false }`
[INFO] [stdout] e95f8c92f19901c5ac78648bed466bfc4e55b81eb426a78110f0feaadda855b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c826b87629cd852a282c9eb8da7f64521c1b219fe174a9d74b94c207ac602fb
[INFO] running `Command { std: "docker" "start" "-a" "9c826b87629cd852a282c9eb8da7f64521c1b219fe174a9d74b94c207ac602fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_ringbuf v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/impls.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 | /             format!(
[INFO] [stdout] 132 | |                 "Attempt to access index {} larger than current length {}",
[INFO] [stdout] 133 | |                 idx, self.len
[INFO] [stdout] 134 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 131 ~             
[INFO] [stdout] 132 |                 "Attempt to access index {} larger than current length {}",
[INFO] [stdout] 133 |                 idx, self.len
[INFO] [stdout] 134 ~             
[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 1.02s
[INFO] running `Command { std: "docker" "inspect" "9c826b87629cd852a282c9eb8da7f64521c1b219fe174a9d74b94c207ac602fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c826b87629cd852a282c9eb8da7f64521c1b219fe174a9d74b94c207ac602fb", kill_on_drop: false }`
[INFO] [stdout] 9c826b87629cd852a282c9eb8da7f64521c1b219fe174a9d74b94c207ac602fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a794c7b2d9628f1792ed6e2094b4cd7fc4c9f892b09a43c0bae4d05c6f047d2
[INFO] running `Command { std: "docker" "start" "-a" "2a794c7b2d9628f1792ed6e2094b4cd7fc4c9f892b09a43c0bae4d05c6f047d2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/impls.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 | /             format!(
[INFO] [stdout] 132 | |                 "Attempt to access index {} larger than current length {}",
[INFO] [stdout] 133 | |                 idx, self.len
[INFO] [stdout] 134 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 131 ~             
[INFO] [stdout] 132 |                 "Attempt to access index {} larger than current length {}",
[INFO] [stdout] 133 |                 idx, self.len
[INFO] [stdout] 134 ~             
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_test v1.0.130
[INFO] [stderr]    Compiling simple_ringbuf v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/tests.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/impls.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 | /             format!(
[INFO] [stdout] 132 | |                 "Attempt to access index {} larger than current length {}",
[INFO] [stdout] 133 | |                 idx, self.len
[INFO] [stdout] 134 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 131 ~             
[INFO] [stdout] 132 |                 "Attempt to access index {} larger than current length {}",
[INFO] [stdout] 133 |                 idx, self.len
[INFO] [stdout] 134 ~             
[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 test [unoptimized + debuginfo] target(s) in 9.81s
[INFO] running `Command { std: "docker" "inspect" "2a794c7b2d9628f1792ed6e2094b4cd7fc4c9f892b09a43c0bae4d05c6f047d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a794c7b2d9628f1792ed6e2094b4cd7fc4c9f892b09a43c0bae4d05c6f047d2", kill_on_drop: false }`
[INFO] [stdout] 2a794c7b2d9628f1792ed6e2094b4cd7fc4c9f892b09a43c0bae4d05c6f047d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a46ef81e391968abc71a2e6aec326cb8b9442cbc0f496bf226b00ea857efb5a4
[INFO] running `Command { std: "docker" "start" "-a" "a46ef81e391968abc71a2e6aec326cb8b9442cbc0f496bf226b00ea857efb5a4", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/impls.rs:131:13
[INFO] [stderr]     |
[INFO] [stderr] 131 | /             format!(
[INFO] [stderr] 132 | |                 "Attempt to access index {} larger than current length {}",
[INFO] [stderr] 133 | |                 idx, self.len
[INFO] [stderr] 134 | |             )
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]     = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 131 ~             
[INFO] [stderr] 132 |                 "Attempt to access index {} larger than current length {}",
[INFO] [stderr] 133 |                 idx, self.len
[INFO] [stderr] 134 ~             
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `simple_ringbuf` (lib) generated 1 warning
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/tests.rs:140:6
[INFO] [stderr]     |
[INFO] [stderr] 140 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `simple_ringbuf` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `simple_ringbuf` (test "tests") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/simple_ringbuf-c34d094a805c3efb)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::sub_rem ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/common.rs (/opt/rustwide/target/debug/deps/common-fbb0a43cd6d7e9ba)
[INFO] [stderr]      Running tests/serde_tests.rs (/opt/rustwide/target/debug/deps/serde_tests-fc4724205e754a63)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-5500f490eb2f081a)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test add_remove ... ok
[INFO] [stdout] test clone ... ok
[INFO] [stdout] test debug ... ok
[INFO] [stdout] end 0 begin 1
[INFO] [stdout] test ringiness ... ok
[INFO] [stdout] test justify ... ok
[INFO] [stdout] test resize ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simple_ringbuf
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::justify (line 398) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::pop_oldest (line 345) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::resize (line 555) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::pop (line 311) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::is_justified (line 516) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::push_back (line 255) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::push (line 198) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::from_iter_cap (line 150) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::elem_equal (line 681) ... ok
[INFO] [stdout] test src/lib.rs - RingBuffer<T>::from_exact_size_iter (line 115) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a46ef81e391968abc71a2e6aec326cb8b9442cbc0f496bf226b00ea857efb5a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46ef81e391968abc71a2e6aec326cb8b9442cbc0f496bf226b00ea857efb5a4", kill_on_drop: false }`
[INFO] [stdout] a46ef81e391968abc71a2e6aec326cb8b9442cbc0f496bf226b00ea857efb5a4