[INFO] fetching crate stringutils 0.0.3...
[INFO] testing stringutils-0.0.3 against 1.75.0 for beta-1.76-1
[INFO] extracting crate stringutils 0.0.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate stringutils 0.0.3 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stringutils 0.0.3
[INFO] finished tweaking crates.io crate stringutils 0.0.3
[INFO] tweaked toml for crates.io crate stringutils 0.0.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3f09e26a4bd254e814473613b5ed8f685ac7f0c7440684aa309e3e4e0f9c035
[INFO] running `Command { std: "docker" "start" "-a" "c3f09e26a4bd254e814473613b5ed8f685ac7f0c7440684aa309e3e4e0f9c035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3f09e26a4bd254e814473613b5ed8f685ac7f0c7440684aa309e3e4e0f9c035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3f09e26a4bd254e814473613b5ed8f685ac7f0c7440684aa309e3e4e0f9c035", kill_on_drop: false }`
[INFO] [stdout] c3f09e26a4bd254e814473613b5ed8f685ac7f0c7440684aa309e3e4e0f9c035
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c23a15cb4786463bd9aac28534a8a48468789c0286b44b634a72e3328281cd95
[INFO] running `Command { std: "docker" "start" "-a" "c23a15cb4786463bd9aac28534a8a48468789c0286b44b634a72e3328281cd95", kill_on_drop: false }`
[INFO] [stderr]    Compiling stringutils v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "c23a15cb4786463bd9aac28534a8a48468789c0286b44b634a72e3328281cd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c23a15cb4786463bd9aac28534a8a48468789c0286b44b634a72e3328281cd95", kill_on_drop: false }`
[INFO] [stdout] c23a15cb4786463bd9aac28534a8a48468789c0286b44b634a72e3328281cd95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 790520fa14bf20438373090744e18c50b705433381811f6568ad35c32f188814
[INFO] running `Command { std: "docker" "start" "-a" "790520fa14bf20438373090744e18c50b705433381811f6568ad35c32f188814", kill_on_drop: false }`
[INFO] [stderr]    Compiling stringutils v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "790520fa14bf20438373090744e18c50b705433381811f6568ad35c32f188814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "790520fa14bf20438373090744e18c50b705433381811f6568ad35c32f188814", kill_on_drop: false }`
[INFO] [stdout] 790520fa14bf20438373090744e18c50b705433381811f6568ad35c32f188814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 75f46f67b53909f265ae0f429902e9ad906e8a0bbc3bc116d76834d41d4729ff
[INFO] running `Command { std: "docker" "start" "-a" "75f46f67b53909f265ae0f429902e9ad906e8a0bbc3bc116d76834d41d4729ff", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stringutils-158b08df3431c4ca)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_ba_to_string ... 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]    Doc-tests stringutils
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - timestamp_to_string (line 37) ... FAILED
[INFO] [stdout] test src/lib.rs - byte_array_to_string (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - timestamp_to_string (line 37) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `libc`
[INFO] [stdout]  --> src/lib.rs:39:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | let current_time = unsafe { libc::time(std::ptr::null_mut()) };
[INFO] [stdout]   |                             ^^^^ use of undeclared crate or module `libc`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - timestamp_to_string (line 37)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "75f46f67b53909f265ae0f429902e9ad906e8a0bbc3bc116d76834d41d4729ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75f46f67b53909f265ae0f429902e9ad906e8a0bbc3bc116d76834d41d4729ff", kill_on_drop: false }`
[INFO] [stdout] 75f46f67b53909f265ae0f429902e9ad906e8a0bbc3bc116d76834d41d4729ff
[INFO] testing stringutils-0.0.3 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate stringutils 0.0.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate stringutils 0.0.3 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stringutils 0.0.3
[INFO] finished tweaking crates.io crate stringutils 0.0.3
[INFO] tweaked toml for crates.io crate stringutils 0.0.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccb28308436aaa17266fa600a2cd2a40ac78e0311a3ab20b4c7dbdbe73171c91
[INFO] running `Command { std: "docker" "start" "-a" "ccb28308436aaa17266fa600a2cd2a40ac78e0311a3ab20b4c7dbdbe73171c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccb28308436aaa17266fa600a2cd2a40ac78e0311a3ab20b4c7dbdbe73171c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccb28308436aaa17266fa600a2cd2a40ac78e0311a3ab20b4c7dbdbe73171c91", kill_on_drop: false }`
[INFO] [stdout] ccb28308436aaa17266fa600a2cd2a40ac78e0311a3ab20b4c7dbdbe73171c91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d9239668ef2c4ab2d9efa930d9c649a2dbb3cd1a6c8705033fb5499dcf0d357
[INFO] running `Command { std: "docker" "start" "-a" "8d9239668ef2c4ab2d9efa930d9c649a2dbb3cd1a6c8705033fb5499dcf0d357", kill_on_drop: false }`
[INFO] [stderr]    Compiling stringutils v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "8d9239668ef2c4ab2d9efa930d9c649a2dbb3cd1a6c8705033fb5499dcf0d357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d9239668ef2c4ab2d9efa930d9c649a2dbb3cd1a6c8705033fb5499dcf0d357", kill_on_drop: false }`
[INFO] [stdout] 8d9239668ef2c4ab2d9efa930d9c649a2dbb3cd1a6c8705033fb5499dcf0d357
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81843dc863f82231b706f1820cec0ff75f38ac65d97df3745b6f29edfd42a9cf
[INFO] running `Command { std: "docker" "start" "-a" "81843dc863f82231b706f1820cec0ff75f38ac65d97df3745b6f29edfd42a9cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling stringutils v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "81843dc863f82231b706f1820cec0ff75f38ac65d97df3745b6f29edfd42a9cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81843dc863f82231b706f1820cec0ff75f38ac65d97df3745b6f29edfd42a9cf", kill_on_drop: false }`
[INFO] [stdout] 81843dc863f82231b706f1820cec0ff75f38ac65d97df3745b6f29edfd42a9cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] da0f421d29f3eb867518eb42c182f3df2dd8f710455536051ac4b39a2e5b57cb
[INFO] running `Command { std: "docker" "start" "-a" "da0f421d29f3eb867518eb42c182f3df2dd8f710455536051ac4b39a2e5b57cb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stringutils-230e7abd83f0ccd2)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_ba_to_string ... 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]    Doc-tests stringutils
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - timestamp_to_string (line 37) ... FAILED
[INFO] [stdout] test src/lib.rs - byte_array_to_string (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - timestamp_to_string (line 37) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `libc`
[INFO] [stdout]  --> src/lib.rs:39:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | let current_time = unsafe { libc::time(std::ptr::null_mut()) };
[INFO] [stdout]   |                             ^^^^ use of undeclared crate or module `libc`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - timestamp_to_string (line 37)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "da0f421d29f3eb867518eb42c182f3df2dd8f710455536051ac4b39a2e5b57cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da0f421d29f3eb867518eb42c182f3df2dd8f710455536051ac4b39a2e5b57cb", kill_on_drop: false }`
[INFO] [stdout] da0f421d29f3eb867518eb42c182f3df2dd8f710455536051ac4b39a2e5b57cb
