[INFO] fetching crate rbn 0.1.4...
[INFO] testing rbn-0.1.4 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate rbn 0.1.4 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate rbn 0.1.4 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rbn 0.1.4
[INFO] finished tweaking crates.io crate rbn 0.1.4
[INFO] tweaked toml for crates.io crate rbn 0.1.4 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate crates.io crate rbn 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.125
[INFO] [stderr]   Downloaded cc v1.0.67
[INFO] [stderr]   Downloaded ctrlc v3.1.9
[INFO] [stderr]   Downloaded pad v0.1.6
[INFO] [stderr]   Downloaded libc v0.2.94
[INFO] [stderr]   Downloaded backtrace v0.3.58
[INFO] [stderr]   Downloaded hambands v0.1.2
[INFO] [stderr]   Downloaded object v0.23.0
[INFO] [stderr]   Downloaded syn v1.0.71
[INFO] [stderr]   Downloaded nix v0.20.0
[INFO] [stderr]   Downloaded serde v1.0.125
[INFO] [stderr]   Downloaded regex-syntax v0.6.24
[INFO] [stderr]   Downloaded regex v1.5.2
[INFO] [stderr]   Downloaded rbn-lib v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 863627b71c56f1b484da6f8a9da1214cc79106eb53cbce3a7c464fb75603c57d
[INFO] running `Command { std: "docker" "start" "-a" "863627b71c56f1b484da6f8a9da1214cc79106eb53cbce3a7c464fb75603c57d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "863627b71c56f1b484da6f8a9da1214cc79106eb53cbce3a7c464fb75603c57d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "863627b71c56f1b484da6f8a9da1214cc79106eb53cbce3a7c464fb75603c57d", kill_on_drop: false }`
[INFO] [stdout] 863627b71c56f1b484da6f8a9da1214cc79106eb53cbce3a7c464fb75603c57d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0481db9b298fb7a4b1e9d367d675451741f882bd932c1bc6d0b4f166f5010f4d
[INFO] running `Command { std: "docker" "start" "-a" "0481db9b298fb7a4b1e9d367d675451741f882bd932c1bc6d0b4f166f5010f4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]    Compiling regex-syntax v0.6.24
[INFO] [stderr]    Compiling hambands v0.1.2
[INFO] [stderr]    Compiling pad v0.1.6
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling regex v1.5.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling ctrlc v3.1.9
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling rbn-lib v0.1.4
[INFO] [stderr]    Compiling rbn v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.09s
[INFO] running `Command { std: "docker" "inspect" "0481db9b298fb7a4b1e9d367d675451741f882bd932c1bc6d0b4f166f5010f4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0481db9b298fb7a4b1e9d367d675451741f882bd932c1bc6d0b4f166f5010f4d", kill_on_drop: false }`
[INFO] [stdout] 0481db9b298fb7a4b1e9d367d675451741f882bd932c1bc6d0b4f166f5010f4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd33fb9ff3d3697c8d99b7bd6b517761d61245e087052e7b47a1f03ac937ce3b
[INFO] running `Command { std: "docker" "start" "-a" "fd33fb9ff3d3697c8d99b7bd6b517761d61245e087052e7b47a1f03ac937ce3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbn v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.16s
[INFO] running `Command { std: "docker" "inspect" "fd33fb9ff3d3697c8d99b7bd6b517761d61245e087052e7b47a1f03ac937ce3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd33fb9ff3d3697c8d99b7bd6b517761d61245e087052e7b47a1f03ac937ce3b", kill_on_drop: false }`
[INFO] [stdout] fd33fb9ff3d3697c8d99b7bd6b517761d61245e087052e7b47a1f03ac937ce3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b20f8e4295b780ff4703cc16ebbda18bd0899ee2e33db341ffaaa78ef4e51ba4
[INFO] running `Command { std: "docker" "start" "-a" "b20f8e4295b780ff4703cc16ebbda18bd0899ee2e33db341ffaaa78ef4e51ba4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rbn-c93f8184bab52ffa)
[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" "b20f8e4295b780ff4703cc16ebbda18bd0899ee2e33db341ffaaa78ef4e51ba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b20f8e4295b780ff4703cc16ebbda18bd0899ee2e33db341ffaaa78ef4e51ba4", kill_on_drop: false }`
[INFO] [stdout] b20f8e4295b780ff4703cc16ebbda18bd0899ee2e33db341ffaaa78ef4e51ba4