[INFO] fetching crate slog-extlog 8.1.0...
[INFO] testing slog-extlog-8.1.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate slog-extlog 8.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate slog-extlog 8.1.0
[INFO] finished tweaking crates.io crate slog-extlog 8.1.0
[INFO] tweaked toml for crates.io crate slog-extlog 8.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slog-extlog 8.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to highest compatible versions
[INFO] [stderr]       Adding erased-serde v0.3.31 (available: v0.4.10)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slog-extlog-derive v8.1.0
[INFO] [stderr]   Downloaded slog-json v2.6.1
[INFO] [stderr]   Downloaded iobuffer v0.2.0
[INFO] [stderr]   Downloaded bencher v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1
[INFO] running `Command { std: "docker" "start" "b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling powerfmt v0.2.1
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling slog v2.8.2
[INFO] [stderr]    Compiling deranged v0.5.9
[INFO] [stderr]    Compiling serde_json v1.0.154
[INFO] [stderr]    Compiling iobuffer v0.2.0
[INFO] [stderr]    Compiling time v0.3.55
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling erased-serde v0.3.31
[INFO] [stderr]    Compiling slog-json v2.6.1
[INFO] [stderr]    Compiling slog-extlog v8.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/stats.rs:257:30
[INFO] [stdout]     |
[INFO] [stdout] 257 |         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout]     |                              ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 257 -         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout] 257 +         serializer: &mut dyn ::slog::Serializer,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/stats.rs:364:30
[INFO] [stdout]     |
[INFO] [stdout] 364 |         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout]     |                              ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 364 -         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout] 364 +         serializer: &mut dyn ::slog::Serializer,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 20.86s
[INFO] running `Command { std: "docker" "inspect" "b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling slog v2.8.2
[INFO] [stderr]    Compiling tokio-macros v2.7.2
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/stats.rs:257:30
[INFO] [stdout]     |
[INFO] [stdout] 257 |         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout]     |                              ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 257 -         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout] 257 +         serializer: &mut dyn ::slog::Serializer,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/stats.rs:364:30
[INFO] [stdout]     |
[INFO] [stdout] 364 |         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout]     |                              ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 364 -         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout] 364 +         serializer: &mut dyn ::slog::Serializer,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio v1.53.3
[INFO] [stderr]    Compiling erased-serde v0.3.31
[INFO] [stderr]    Compiling slog-extlog-derive v8.1.0
[INFO] [stderr]    Compiling slog-extlog v8.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/stats.rs:257:30
[INFO] [stdout]     |
[INFO] [stdout] 257 |         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout]     |                              ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 257 -         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout] 257 +         serializer: &mut dyn ::slog::Serializer,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/stats.rs:364:30
[INFO] [stdout]     |
[INFO] [stdout] 364 |         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout]     |                              ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 364 -         serializer: &mut dyn (::slog::Serializer),
[INFO] [stdout] 364 +         serializer: &mut dyn ::slog::Serializer,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CumulBucketCounterLog` is never constructed
[INFO] [stdout]    --> tests/stats_query.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | struct CumulBucketCounterLog {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 21.53s
[INFO] running `Command { std: "docker" "inspect" "b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/stats.rs:257:30
[INFO] [stderr]     |
[INFO] [stderr] 257 |         serializer: &mut dyn (::slog::Serializer),
[INFO] [stderr]     |                              ^                  ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 257 -         serializer: &mut dyn (::slog::Serializer),
[INFO] [stderr] 257 +         serializer: &mut dyn ::slog::Serializer,
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/stats.rs:364:30
[INFO] [stderr]     |
[INFO] [stderr] 364 |         serializer: &mut dyn (::slog::Serializer),
[INFO] [stderr]     |                              ^                  ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 364 -         serializer: &mut dyn (::slog::Serializer),
[INFO] [stderr] 364 +         serializer: &mut dyn ::slog::Serializer,
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `slog-extlog` (lib) generated 2 warnings (run `cargo fix --lib -p slog-extlog` to apply 2 suggestions)
[INFO] [stderr] warning: struct `CumulBucketCounterLog` is never constructed
[INFO] [stderr]    --> tests/stats_query.rs:104:8
[INFO] [stderr]     |
[INFO] [stderr] 104 | struct CumulBucketCounterLog {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `slog-extlog` (test "stats_query") generated 1 warning
[INFO] [stderr] warning: `slog-extlog` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/slog_extlog-d529318b188b858d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test stats::tests::check_clone ... ok
[INFO] [stdout] test slog_test::tests::test_partial_write ... ok
[INFO] [stderr]      Running tests/demo_test.rs (/opt/rustwide/target/release/deps/demo_test-7e6daf9c0474bd78)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.38s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_assert_json_matches ... ok
[INFO] [stdout] test test_main ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_main stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test_main' (584) panicked at tests/demo_test.rs:28:41:
[INFO] [stdout] index out of bounds: the len is 0 but the index is 0
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x57a6e5dd11f1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x57a6e5de5aca - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x57a6e5dd568c - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x57a6e5dad7e6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x57a6e5dc9959 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x57a6e5d476a0 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x57a6e5dc9b12 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x57a6e5dad892 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x57a6e5da6619 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x57a6e5dae48d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x57a6e5de61fc - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x57a6e5de604c - core[df12db4294e9bfd3]::panicking::panic_bounds_check
[INFO] [stdout]   12:     0x57a6e5d38de1 - <demo_test[1cb49fd38dcf62d1]::test_main::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x57a6e5d3a98b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   14:     0x57a6e5d47ff5 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   15:     0x57a6e5d418b4 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x57a6e5d4b152 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x57a6e5dd0ac9 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x7242dd0a1dfa - <unknown>
[INFO] [stdout]   19:     0x7242dd1353d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_main
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test demo_test`
[INFO] running `Command { std: "docker" "inspect" "b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1", kill_on_drop: false }`
[INFO] [stdout] b94f91ff686d02ec3b86c2bd4669366bb5a6c642118423383b1af7a9a61d1cc1
