[INFO] fetching crate history_stack 0.1.0...
[INFO] testing history_stack-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate history_stack 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate history_stack 0.1.0
[INFO] finished tweaking crates.io crate history_stack 0.1.0
[INFO] tweaked toml for crates.io crate history_stack 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate history_stack 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e9fc9580b50ba2c8c1f0f87ef1c00c3c09cd1cf4abd688117d4242499708aae
[INFO] running `Command { std: "docker" "start" "-a" "0e9fc9580b50ba2c8c1f0f87ef1c00c3c09cd1cf4abd688117d4242499708aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e9fc9580b50ba2c8c1f0f87ef1c00c3c09cd1cf4abd688117d4242499708aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e9fc9580b50ba2c8c1f0f87ef1c00c3c09cd1cf4abd688117d4242499708aae", kill_on_drop: false }`
[INFO] [stdout] 0e9fc9580b50ba2c8c1f0f87ef1c00c3c09cd1cf4abd688117d4242499708aae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5841c7368bf3abd9531217d4368a42fe985c761b22c54d0f3ed35e173644514
[INFO] running `Command { std: "docker" "start" "-a" "a5841c7368bf3abd9531217d4368a42fe985c761b22c54d0f3ed35e173644514", kill_on_drop: false }`
[INFO] [stderr]    Compiling history_stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "a5841c7368bf3abd9531217d4368a42fe985c761b22c54d0f3ed35e173644514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5841c7368bf3abd9531217d4368a42fe985c761b22c54d0f3ed35e173644514", kill_on_drop: false }`
[INFO] [stdout] a5841c7368bf3abd9531217d4368a42fe985c761b22c54d0f3ed35e173644514
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7c38019134ff58ae0ede378ce7df578880100b1ec713fa9e2a6f15e1afd7911
[INFO] running `Command { std: "docker" "start" "-a" "a7c38019134ff58ae0ede378ce7df578880100b1ec713fa9e2a6f15e1afd7911", kill_on_drop: false }`
[INFO] [stderr]    Compiling history_stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "a7c38019134ff58ae0ede378ce7df578880100b1ec713fa9e2a6f15e1afd7911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c38019134ff58ae0ede378ce7df578880100b1ec713fa9e2a6f15e1afd7911", kill_on_drop: false }`
[INFO] [stdout] a7c38019134ff58ae0ede378ce7df578880100b1ec713fa9e2a6f15e1afd7911
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ed88604c3987adf2fa84b6dfe3f2abf388e24ddf410d52b667d6470fc09205e4
[INFO] running `Command { std: "docker" "start" "-a" "ed88604c3987adf2fa84b6dfe3f2abf388e24ddf410d52b667d6470fc09205e4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/history_stack-2f11e683f63eb7de)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests history_stack
[INFO] [stdout] test history_stack ... ok
[INFO] [stdout] test undo_stack ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - UndoStack (line 131) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ed88604c3987adf2fa84b6dfe3f2abf388e24ddf410d52b667d6470fc09205e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed88604c3987adf2fa84b6dfe3f2abf388e24ddf410d52b667d6470fc09205e4", kill_on_drop: false }`
[INFO] [stdout] ed88604c3987adf2fa84b6dfe3f2abf388e24ddf410d52b667d6470fc09205e4