[INFO] fetching crate forest_bigint 0.1.4...
[INFO] testing forest_bigint-0.1.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate forest_bigint 0.1.4 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate forest_bigint 0.1.4 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate forest_bigint 0.1.4
[INFO] finished tweaking crates.io crate forest_bigint 0.1.4
[INFO] tweaked toml for crates.io crate forest_bigint 0.1.4 written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf75faa313534afaca28370d3517e729503c3f5cdc39eff9ee97a874aca54eeb
[INFO] running `Command { std: "docker" "start" "-a" "cf75faa313534afaca28370d3517e729503c3f5cdc39eff9ee97a874aca54eeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf75faa313534afaca28370d3517e729503c3f5cdc39eff9ee97a874aca54eeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf75faa313534afaca28370d3517e729503c3f5cdc39eff9ee97a874aca54eeb", kill_on_drop: false }`
[INFO] [stdout] cf75faa313534afaca28370d3517e729503c3f5cdc39eff9ee97a874aca54eeb
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1877f3235ff144bf13f27ed9bd898b743ec007f4a6903251aa07d10f1bd2f46a
[INFO] running `Command { std: "docker" "start" "-a" "1877f3235ff144bf13f27ed9bd898b743ec007f4a6903251aa07d10f1bd2f46a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling cs_serde_bytes v0.12.0
[INFO] [stderr]    Compiling forest_bigint v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.50s
[INFO] running `Command { std: "docker" "inspect" "1877f3235ff144bf13f27ed9bd898b743ec007f4a6903251aa07d10f1bd2f46a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1877f3235ff144bf13f27ed9bd898b743ec007f4a6903251aa07d10f1bd2f46a", kill_on_drop: false }`
[INFO] [stdout] 1877f3235ff144bf13f27ed9bd898b743ec007f4a6903251aa07d10f1bd2f46a
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b38b60560cd883fa6296cc8a11ba5c05916f0a85f326a34c814c040667ffc27
[INFO] running `Command { std: "docker" "start" "-a" "1b38b60560cd883fa6296cc8a11ba5c05916f0a85f326a34c814c040667ffc27", kill_on_drop: false }`
[INFO] [stderr]    Compiling forest_bigint v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "1b38b60560cd883fa6296cc8a11ba5c05916f0a85f326a34c814c040667ffc27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b38b60560cd883fa6296cc8a11ba5c05916f0a85f326a34c814c040667ffc27", kill_on_drop: false }`
[INFO] [stdout] 1b38b60560cd883fa6296cc8a11ba5c05916f0a85f326a34c814c040667ffc27
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f59172839dad8e668f3f79a411e9c514ea48531851eafb8e4a72a45eb8663bc9
[INFO] running `Command { std: "docker" "start" "-a" "f59172839dad8e668f3f79a411e9c514ea48531851eafb8e4a72a45eb8663bc9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/forest_bigint-d18ce327cd52a7b0)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests forest_bigint
[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] [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" "f59172839dad8e668f3f79a411e9c514ea48531851eafb8e4a72a45eb8663bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f59172839dad8e668f3f79a411e9c514ea48531851eafb8e4a72a45eb8663bc9", kill_on_drop: false }`
[INFO] [stdout] f59172839dad8e668f3f79a411e9c514ea48531851eafb8e4a72a45eb8663bc9