[INFO] fetching crate dubble 0.1.0...
[INFO] testing dubble-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate dubble 0.1.0 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate dubble 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dubble 0.1.0
[INFO] finished tweaking crates.io crate dubble 0.1.0
[INFO] tweaked toml for crates.io crate dubble 0.1.0 written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78e713da860223837dde622fb9ef0401a8e0fe7922d40a24e363aa3f46ec7a59
[INFO] running `Command { std: "docker" "start" "-a" "78e713da860223837dde622fb9ef0401a8e0fe7922d40a24e363aa3f46ec7a59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78e713da860223837dde622fb9ef0401a8e0fe7922d40a24e363aa3f46ec7a59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e713da860223837dde622fb9ef0401a8e0fe7922d40a24e363aa3f46ec7a59", kill_on_drop: false }`
[INFO] [stdout] 78e713da860223837dde622fb9ef0401a8e0fe7922d40a24e363aa3f46ec7a59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0431f985a2a3a1218ff0325bdfce84a40a3769ff47bd4d8eca2fee10be66ff9
[INFO] running `Command { std: "docker" "start" "-a" "a0431f985a2a3a1218ff0325bdfce84a40a3769ff47bd4d8eca2fee10be66ff9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling dubble v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "a0431f985a2a3a1218ff0325bdfce84a40a3769ff47bd4d8eca2fee10be66ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0431f985a2a3a1218ff0325bdfce84a40a3769ff47bd4d8eca2fee10be66ff9", kill_on_drop: false }`
[INFO] [stdout] a0431f985a2a3a1218ff0325bdfce84a40a3769ff47bd4d8eca2fee10be66ff9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1b0166379f90b93c4006a3c5ec98f56ce47ab973dd312b6e01d6d4a2998e046
[INFO] running `Command { std: "docker" "start" "-a" "e1b0166379f90b93c4006a3c5ec98f56ce47ab973dd312b6e01d6d4a2998e046", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling dubble v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "e1b0166379f90b93c4006a3c5ec98f56ce47ab973dd312b6e01d6d4a2998e046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1b0166379f90b93c4006a3c5ec98f56ce47ab973dd312b6e01d6d4a2998e046", kill_on_drop: false }`
[INFO] [stdout] e1b0166379f90b93c4006a3c5ec98f56ce47ab973dd312b6e01d6d4a2998e046
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f6978afa5955395532c1c8c1523cb17c6643011354a22793eb6c860e885eb1e2
[INFO] running `Command { std: "docker" "start" "-a" "f6978afa5955395532c1c8c1523cb17c6643011354a22793eb6c860e885eb1e2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dubble-a0599605cf3237f9)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::basic_int ... ok
[INFO] [stdout] test tests::basic_int_using_deref ... ok
[INFO] [stdout] test tests::basic_string ... ok
[INFO] [stdout] test tests::vec_i32 ... ok
[INFO] [stderr]    Doc-tests dubble
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/lib.rs - (line 12) ... ok
[INFO] [stdout] test src/lib.rs - (line 77) ... ok
[INFO] [stdout] test src/lib.rs - (line 65) ... ok
[INFO] [stdout] test src/lib.rs - DoubleBuffered<T>::write (line 147) ... ok
[INFO] [stdout] test src/lib.rs - DoubleBuffered<T>::write (line 156) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f6978afa5955395532c1c8c1523cb17c6643011354a22793eb6c860e885eb1e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6978afa5955395532c1c8c1523cb17c6643011354a22793eb6c860e885eb1e2", kill_on_drop: false }`
[INFO] [stdout] f6978afa5955395532c1c8c1523cb17c6643011354a22793eb6c860e885eb1e2