[INFO] fetching crate stressed 1.1.2...
[INFO] testing stressed-1.1.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate stressed 1.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate stressed 1.1.2
[INFO] finished tweaking crates.io crate stressed 1.1.2
[INFO] tweaked toml for crates.io crate stressed 1.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stressed 1.1.2 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 stressed 1.1.2 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ea3fa0ccc0ae4ca56cc1682cce7d97f4ecc65e4cbb5bfbc0654837fa83fcab2
[INFO] running `Command { std: "docker" "start" "-a" "1ea3fa0ccc0ae4ca56cc1682cce7d97f4ecc65e4cbb5bfbc0654837fa83fcab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ea3fa0ccc0ae4ca56cc1682cce7d97f4ecc65e4cbb5bfbc0654837fa83fcab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ea3fa0ccc0ae4ca56cc1682cce7d97f4ecc65e4cbb5bfbc0654837fa83fcab2", kill_on_drop: false }`
[INFO] [stdout] 1ea3fa0ccc0ae4ca56cc1682cce7d97f4ecc65e4cbb5bfbc0654837fa83fcab2
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08259cb3f2b077dd135c04935263a96268c9964031e70cd333771c4cc78ed8bd
[INFO] running `Command { std: "docker" "start" "-a" "08259cb3f2b077dd135c04935263a96268c9964031e70cd333771c4cc78ed8bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]    Compiling bitflags v2.3.3
[INFO] [stderr]    Compiling linux-raw-sys v0.4.3
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling pin-project-lite v0.2.10
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling portable-atomic v1.4.1
[INFO] [stderr]    Compiling anstyle v1.0.1
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling async-trait v0.1.72
[INFO] [stderr]    Compiling clap_lex v0.5.0
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling similar v2.2.1
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling console v0.15.7
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling syn v2.0.26
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]    Compiling anstream v0.3.2
[INFO] [stderr]    Compiling colored v2.0.4
[INFO] [stderr]    Compiling indicatif v0.17.5
[INFO] [stderr]    Compiling clap_builder v4.3.12
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling clap v4.3.12
[INFO] [stderr]    Compiling futures-executor v0.3.28
[INFO] [stderr]    Compiling futures v0.3.28
[INFO] [stderr]    Compiling tokio-util v0.7.8
[INFO] [stderr]    Compiling stressed v1.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.84s
[INFO] running `Command { std: "docker" "inspect" "08259cb3f2b077dd135c04935263a96268c9964031e70cd333771c4cc78ed8bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08259cb3f2b077dd135c04935263a96268c9964031e70cd333771c4cc78ed8bd", kill_on_drop: false }`
[INFO] [stdout] 08259cb3f2b077dd135c04935263a96268c9964031e70cd333771c4cc78ed8bd
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 418a2a51b741448b24c95687d1f32b050555b8b879f6ffeb890a3c1a2cd76afc
[INFO] running `Command { std: "docker" "start" "-a" "418a2a51b741448b24c95687d1f32b050555b8b879f6ffeb890a3c1a2cd76afc", kill_on_drop: false }`
[INFO] [stderr]    Compiling stressed v1.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "418a2a51b741448b24c95687d1f32b050555b8b879f6ffeb890a3c1a2cd76afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "418a2a51b741448b24c95687d1f32b050555b8b879f6ffeb890a3c1a2cd76afc", kill_on_drop: false }`
[INFO] [stdout] 418a2a51b741448b24c95687d1f32b050555b8b879f6ffeb890a3c1a2cd76afc
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 64f4bbd12739686254970d3aaed1185d5fd8cd0f59d722c3fb59849758e218c8
[INFO] running `Command { std: "docker" "start" "-a" "64f4bbd12739686254970d3aaed1185d5fd8cd0f59d722c3fb59849758e218c8", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stressed-f3a793011f2978bd)
[INFO] [stdout] test checker::custom_checker::tests::custom_checker_succeeds ... ok
[INFO] [stdout] test checker::custom_checker::tests::custom_checker_fails ... ok
[INFO] [stdout] test checker::default_checker::tests::minus_one ... ok
[INFO] [stdout] test communicator::tests::echo_communicator ... ok
[INFO] [stdout] test sampler::tests::seed_as_arg ... ok
[INFO] [stdout] test solver::tests::echo_solver ... ok
[INFO] [stdout] test sampler::tests::seed_as_stdin ... ok
[INFO] [stdout] test checker::default_checker::tests::no_newline ... ok
[INFO] [stdout] test checker::default_checker::tests::echo_solution ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/stressed-d8ef75972e81f3c1)
[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]    Doc-tests stressed
[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" "64f4bbd12739686254970d3aaed1185d5fd8cd0f59d722c3fb59849758e218c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f4bbd12739686254970d3aaed1185d5fd8cd0f59d722c3fb59849758e218c8", kill_on_drop: false }`
[INFO] [stdout] 64f4bbd12739686254970d3aaed1185d5fd8cd0f59d722c3fb59849758e218c8
