[INFO] fetching crate tee_output 0.2.0...
[INFO] testing tee_output-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tee_output 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate tee_output 0.2.0
[INFO] finished tweaking crates.io crate tee_output 0.2.0
[INFO] tweaked toml for crates.io crate tee_output 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tee_output 0.2.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tee_output 0.2.0 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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8e43ab92d510c5868f5af626da46f311363b073475dcdeeda89c74916c6e664
[INFO] running `Command { std: "docker" "start" "-a" "c8e43ab92d510c5868f5af626da46f311363b073475dcdeeda89c74916c6e664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8e43ab92d510c5868f5af626da46f311363b073475dcdeeda89c74916c6e664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8e43ab92d510c5868f5af626da46f311363b073475dcdeeda89c74916c6e664", kill_on_drop: false }`
[INFO] [stdout] c8e43ab92d510c5868f5af626da46f311363b073475dcdeeda89c74916c6e664
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9603312d81aec7e7c2099a2dea495442810ee099321ab75b616d077ef3793342
[INFO] running `Command { std: "docker" "start" "-a" "9603312d81aec7e7c2099a2dea495442810ee099321ab75b616d077ef3793342", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling syn v2.0.109
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling filedescriptor v0.8.3
[INFO] [stderr]    Compiling tee_output v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.96s
[INFO] running `Command { std: "docker" "inspect" "9603312d81aec7e7c2099a2dea495442810ee099321ab75b616d077ef3793342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9603312d81aec7e7c2099a2dea495442810ee099321ab75b616d077ef3793342", kill_on_drop: false }`
[INFO] [stdout] 9603312d81aec7e7c2099a2dea495442810ee099321ab75b616d077ef3793342
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d85abea638eadfcd32e7a734ca3bf1e9a67c9419e7515f574139c49330a15370
[INFO] running `Command { std: "docker" "start" "-a" "d85abea638eadfcd32e7a734ca3bf1e9a67c9419e7515f574139c49330a15370", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling sdd v3.0.10
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling syn v2.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling scc v2.4.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tempfile v3.24.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling serial_test_derive v3.2.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling filedescriptor v0.8.3
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling tee_output v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling serial_test v3.2.0
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.80s
[INFO] running `Command { std: "docker" "inspect" "d85abea638eadfcd32e7a734ca3bf1e9a67c9419e7515f574139c49330a15370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d85abea638eadfcd32e7a734ca3bf1e9a67c9419e7515f574139c49330a15370", kill_on_drop: false }`
[INFO] [stdout] d85abea638eadfcd32e7a734ca3bf1e9a67c9419e7515f574139c49330a15370
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fc53f983e043caa3ec0c4a3e866634f803cbf12f2cacdbfb17ec475ce882c87b
[INFO] running `Command { std: "docker" "start" "-a" "fc53f983e043caa3ec0c4a3e866634f803cbf12f2cacdbfb17ec475ce882c87b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tee_output-f38369fda4b16921)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] from stdouttest tests::test_both_streams_captured ... ok
[INFO] [stdout] first run
[INFO] [stdout] second run
[INFO] [stdout] test tests::test_reinitialize_after_drop ... ok
[INFO] [stdout] test tests::test_stderr_captured ... ok
[INFO] [stdout] during tee
[INFO] [stdout] after tee
[INFO] [stdout] test tests::test_output_not_captured_after_drop ... ok
[INFO] [stdout] appended content
[INFO] [stdout] test tests::test_append_mode ... ok
[INFO] [stdout] test tests::test_separator_written ... ok
[INFO] [stderr] from stderrhello stderr   Doc-tests tee_output
[INFO] [stdout] hello stdouttest tests::test_stdout_captured ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.01s
[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] running `Command { std: "docker" "inspect" "fc53f983e043caa3ec0c4a3e866634f803cbf12f2cacdbfb17ec475ce882c87b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc53f983e043caa3ec0c4a3e866634f803cbf12f2cacdbfb17ec475ce882c87b", kill_on_drop: false }`
[INFO] [stdout] fc53f983e043caa3ec0c4a3e866634f803cbf12f2cacdbfb17ec475ce882c87b
