[INFO] fetching crate doubly 1.1.3...
[INFO] testing doubly-1.1.3 against 1.59.0 for beta-1.60-1
[INFO] extracting crate doubly 1.1.3 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate doubly 1.1.3 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate doubly 1.1.3
[INFO] finished tweaking crates.io crate doubly 1.1.3
[INFO] tweaked toml for crates.io crate doubly 1.1.3 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18f63560711feb049f4c95add63210b8dbd8989918226eb8b1963c9272013d09
[INFO] running `Command { std: "docker" "start" "-a" "18f63560711feb049f4c95add63210b8dbd8989918226eb8b1963c9272013d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18f63560711feb049f4c95add63210b8dbd8989918226eb8b1963c9272013d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18f63560711feb049f4c95add63210b8dbd8989918226eb8b1963c9272013d09", kill_on_drop: false }`
[INFO] [stdout] 18f63560711feb049f4c95add63210b8dbd8989918226eb8b1963c9272013d09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7fcf25794687636434922f934d0a57bd2d437b09d72cb69c01560892fd06530
[INFO] running `Command { std: "docker" "start" "-a" "b7fcf25794687636434922f934d0a57bd2d437b09d72cb69c01560892fd06530", kill_on_drop: false }`
[INFO] [stderr]    Compiling doubly v1.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "b7fcf25794687636434922f934d0a57bd2d437b09d72cb69c01560892fd06530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7fcf25794687636434922f934d0a57bd2d437b09d72cb69c01560892fd06530", kill_on_drop: false }`
[INFO] [stdout] b7fcf25794687636434922f934d0a57bd2d437b09d72cb69c01560892fd06530
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a15cb0f1c517be19a4fe0e2bef99d5e28c283616ba82994e7aba52cca5cd89b
[INFO] running `Command { std: "docker" "start" "-a" "7a15cb0f1c517be19a4fe0e2bef99d5e28c283616ba82994e7aba52cca5cd89b", kill_on_drop: false }`
[INFO] [stderr]    Compiling doubly v1.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "7a15cb0f1c517be19a4fe0e2bef99d5e28c283616ba82994e7aba52cca5cd89b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a15cb0f1c517be19a4fe0e2bef99d5e28c283616ba82994e7aba52cca5cd89b", kill_on_drop: false }`
[INFO] [stdout] 7a15cb0f1c517be19a4fe0e2bef99d5e28c283616ba82994e7aba52cca5cd89b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e6337d2d6151339657af1cbfae6134073e176ed9d0a3e2a1157d4c21b30dc973
[INFO] running `Command { std: "docker" "start" "-a" "e6337d2d6151339657af1cbfae6134073e176ed9d0a3e2a1157d4c21b30dc973", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/doubly-8af7e305752a04e2)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_append ... ok
[INFO] [stdout] test tests::test_empty ... ok
[INFO] [stderr]    Doc-tests doubly
[INFO] [stdout] test tests::test_list ... ok
[INFO] [stdout] test tests::test_iter ... ok
[INFO] [stdout] test tests::test_len ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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" "e6337d2d6151339657af1cbfae6134073e176ed9d0a3e2a1157d4c21b30dc973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6337d2d6151339657af1cbfae6134073e176ed9d0a3e2a1157d4c21b30dc973", kill_on_drop: false }`
[INFO] [stdout] e6337d2d6151339657af1cbfae6134073e176ed9d0a3e2a1157d4c21b30dc973