[INFO] cloning repository https://github.com/literadix/rust_trace_tests
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/literadix/rust_trace_tests" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliteradix%2Frust_trace_tests", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliteradix%2Frust_trace_tests'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af3d4002033fed9202028fa43808037fa99876e5
[INFO] testing literadix/rust_trace_tests against 1.79.0 for beta-1.80-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliteradix%2Frust_trace_tests" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/literadix/rust_trace_tests on toolchain 1.79.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.79.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/literadix/rust_trace_tests
[INFO] finished tweaking git repo https://github.com/literadix/rust_trace_tests
[INFO] tweaked toml for git repo https://github.com/literadix/rust_trace_tests written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/literadix/rust_trace_tests 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" "+1.79.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-appender v0.2.2
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bf8206c2c58d97c06dfc751900d6d274c1c66a4b4fc710e1d42c10e60cc13a9
[INFO] running `Command { std: "docker" "start" "-a" "4bf8206c2c58d97c06dfc751900d6d274c1c66a4b4fc710e1d42c10e60cc13a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bf8206c2c58d97c06dfc751900d6d274c1c66a4b4fc710e1d42c10e60cc13a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bf8206c2c58d97c06dfc751900d6d274c1c66a4b4fc710e1d42c10e60cc13a9", kill_on_drop: false }`
[INFO] [stdout] 4bf8206c2c58d97c06dfc751900d6d274c1c66a4b4fc710e1d42c10e60cc13a9
[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=warn" "-e" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3eb15889892532d64ad4c50c256294bb652e2387211d55ac79f3a3383ca32c7d
[INFO] running `Command { std: "docker" "start" "-a" "3eb15889892532d64ad4c50c256294bb652e2387211d55ac79f3a3383ca32c7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling tokio v1.28.0
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling test_tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling time v0.3.21
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling tracing-subscriber v0.3.17
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling mio v0.8.6
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling tracing-appender v0.2.2
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.24
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.52s
[INFO] running `Command { std: "docker" "inspect" "3eb15889892532d64ad4c50c256294bb652e2387211d55ac79f3a3383ca32c7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb15889892532d64ad4c50c256294bb652e2387211d55ac79f3a3383ca32c7d", kill_on_drop: false }`
[INFO] [stdout] 3eb15889892532d64ad4c50c256294bb652e2387211d55ac79f3a3383ca32c7d
[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=warn" "-e" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea006c849cc09c6478b43e7fa4e01e9d3f6d5de50016f13a86be5421e47a8acd
[INFO] running `Command { std: "docker" "start" "-a" "ea006c849cc09c6478b43e7fa4e01e9d3f6d5de50016f13a86be5421e47a8acd", kill_on_drop: false }`
[INFO] [stderr]    Compiling test_tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "ea006c849cc09c6478b43e7fa4e01e9d3f6d5de50016f13a86be5421e47a8acd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea006c849cc09c6478b43e7fa4e01e9d3f6d5de50016f13a86be5421e47a8acd", kill_on_drop: false }`
[INFO] [stdout] ea006c849cc09c6478b43e7fa4e01e9d3f6d5de50016f13a86be5421e47a8acd
[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=warn" "-e" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0dd42debb751e18d0e0c5b99c68264a46fc9d7ff62f5a4ab224f66c26f1fa5f9
[INFO] running `Command { std: "docker" "start" "-a" "0dd42debb751e18d0e0c5b99c68264a46fc9d7ff62f5a4ab224f66c26f1fa5f9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/test_tokio-8d6a9d59eae9d33e)
[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] [stderr]      Running tests/helpers.rs (/opt/rustwide/target/debug/deps/helpers-9ac2f1413954a3a3)
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::ff ... ok
[INFO] [stderr]      Running tests/some_tests.rs (/opt/rustwide/target/debug/deps/some_tests-ee7172e536721eb5)
[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] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::test_iter ... ok
[INFO] [stdout] test test::test_slices ... ok
[INFO] [stdout] test test::test_substraction ... ok
[INFO] [stdout] test test::test_max ... ok
[INFO] [stdout] test test::test_addition ... ok
[INFO] [stdout] test test::test_function_pointer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0dd42debb751e18d0e0c5b99c68264a46fc9d7ff62f5a4ab224f66c26f1fa5f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dd42debb751e18d0e0c5b99c68264a46fc9d7ff62f5a4ab224f66c26f1fa5f9", kill_on_drop: false }`
[INFO] [stdout] 0dd42debb751e18d0e0c5b99c68264a46fc9d7ff62f5a4ab224f66c26f1fa5f9
[INFO] testing literadix/rust_trace_tests against beta-2024-06-22 for beta-1.80-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliteradix%2Frust_trace_tests" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/literadix/rust_trace_tests on toolchain beta-2024-06-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-06-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/literadix/rust_trace_tests
[INFO] finished tweaking git repo https://github.com/literadix/rust_trace_tests
[INFO] tweaked toml for git repo https://github.com/literadix/rust_trace_tests written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/literadix/rust_trace_tests 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" "+beta-2024-06-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-06-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aef0bcba4314fc774df1090d779fc730655d60342529de2702a2191b8a723b9f
[INFO] running `Command { std: "docker" "start" "-a" "aef0bcba4314fc774df1090d779fc730655d60342529de2702a2191b8a723b9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aef0bcba4314fc774df1090d779fc730655d60342529de2702a2191b8a723b9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aef0bcba4314fc774df1090d779fc730655d60342529de2702a2191b8a723b9f", kill_on_drop: false }`
[INFO] [stdout] aef0bcba4314fc774df1090d779fc730655d60342529de2702a2191b8a723b9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-06-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3480efc7c61d89376c3935aca9fbe76725e0ba31f0642ca5e6f9aef286ce49b
[INFO] running `Command { std: "docker" "start" "-a" "e3480efc7c61d89376c3935aca9fbe76725e0ba31f0642ca5e6f9aef286ce49b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling tokio v1.28.0
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling test_tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling time v0.3.21
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling tracing-subscriber v0.3.17
[INFO] [stdout] error[E0282]: type annotations needed for `Box<_>`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/time-0.3.21/src/format_description/parse/mod.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let items = format_items
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 86 |     Ok(items.into())
[INFO] [stdout]    |              ---- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `items` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let items: Box<_> = format_items
[INFO] [stdout]    |              ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling mio v0.8.6
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `time` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e3480efc7c61d89376c3935aca9fbe76725e0ba31f0642ca5e6f9aef286ce49b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3480efc7c61d89376c3935aca9fbe76725e0ba31f0642ca5e6f9aef286ce49b", kill_on_drop: false }`
[INFO] [stdout] e3480efc7c61d89376c3935aca9fbe76725e0ba31f0642ca5e6f9aef286ce49b