[INFO] cloning repository https://github.com/deneut/rust-serialization-benchmark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deneut/rust-serialization-benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeneut%2Frust-serialization-benchmark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeneut%2Frust-serialization-benchmark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e4e0302a18397734f08dbeb8dc2e4970299f097a
[INFO] testing deneut/rust-serialization-benchmark against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeneut%2Frust-serialization-benchmark" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/deneut/rust-serialization-benchmark on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/deneut/rust-serialization-benchmark
[INFO] finished tweaking git repo https://github.com/deneut/rust-serialization-benchmark
[INFO] tweaked toml for git repo https://github.com/deneut/rust-serialization-benchmark written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/deneut/rust-serialization-benchmark already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34599e75a6dae375892127f06e5ad4fa68b5a1137639ba65d3140f1a3b6cb0ec
[INFO] running `Command { std: "docker" "start" "-a" "34599e75a6dae375892127f06e5ad4fa68b5a1137639ba65d3140f1a3b6cb0ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34599e75a6dae375892127f06e5ad4fa68b5a1137639ba65d3140f1a3b6cb0ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34599e75a6dae375892127f06e5ad4fa68b5a1137639ba65d3140f1a3b6cb0ec", kill_on_drop: false }`
[INFO] [stdout] 34599e75a6dae375892127f06e5ad4fa68b5a1137639ba65d3140f1a3b6cb0ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5164d29fcd5f7abeb0f44a09897c0449b10252fbf1e00308a461d46188a693ea
[INFO] running `Command { std: "docker" "start" "-a" "5164d29fcd5f7abeb0f44a09897c0449b10252fbf1e00308a461d46188a693ea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rust-serialization-benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.07s
[INFO] running `Command { std: "docker" "inspect" "5164d29fcd5f7abeb0f44a09897c0449b10252fbf1e00308a461d46188a693ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5164d29fcd5f7abeb0f44a09897c0449b10252fbf1e00308a461d46188a693ea", kill_on_drop: false }`
[INFO] [stdout] 5164d29fcd5f7abeb0f44a09897c0449b10252fbf1e00308a461d46188a693ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b394e319984c82892ca249d2f573d57898ea8b4d1614f6e53da1f23cf1e89d1c
[INFO] running `Command { std: "docker" "start" "-a" "b394e319984c82892ca249d2f573d57898ea8b4d1614f6e53da1f23cf1e89d1c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-serialization-benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "b394e319984c82892ca249d2f573d57898ea8b4d1614f6e53da1f23cf1e89d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b394e319984c82892ca249d2f573d57898ea8b4d1614f6e53da1f23cf1e89d1c", kill_on_drop: false }`
[INFO] [stdout] b394e319984c82892ca249d2f573d57898ea8b4d1614f6e53da1f23cf1e89d1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a6fa9f6cb1c77379b8c065deff755a1aafdf11c79a272839d9baf6a75d5deb0f
[INFO] running `Command { std: "docker" "start" "-a" "a6fa9f6cb1c77379b8c065deff755a1aafdf11c79a272839d9baf6a75d5deb0f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.65s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_serialization_benchmark-0c9d63a1c71795f9)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::one_object ... ok
[INFO] [stdout] test tests::many_objects ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a6fa9f6cb1c77379b8c065deff755a1aafdf11c79a272839d9baf6a75d5deb0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6fa9f6cb1c77379b8c065deff755a1aafdf11c79a272839d9baf6a75d5deb0f", kill_on_drop: false }`
[INFO] [stdout] a6fa9f6cb1c77379b8c065deff755a1aafdf11c79a272839d9baf6a75d5deb0f