[INFO] fetching crate tc-btree 0.1.7...
[INFO] testing tc-btree-0.1.7 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tc-btree 0.1.7 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tc-btree 0.1.7 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 tc-btree 0.1.7
[INFO] finished tweaking crates.io crate tc-btree 0.1.7
[INFO] tweaked toml for crates.io crate tc-btree 0.1.7 written to /workspace/builds/worker-2/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 8279ba408503bbc327d6fa7102f26d00c90ba8b955d82306cad6fb2b92920e6e
[INFO] running `Command { std: "docker" "start" "-a" "8279ba408503bbc327d6fa7102f26d00c90ba8b955d82306cad6fb2b92920e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8279ba408503bbc327d6fa7102f26d00c90ba8b955d82306cad6fb2b92920e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8279ba408503bbc327d6fa7102f26d00c90ba8b955d82306cad6fb2b92920e6e", kill_on_drop: false }`
[INFO] [stdout] 8279ba408503bbc327d6fa7102f26d00c90ba8b955d82306cad6fb2b92920e6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 255777bd128418558a43590fc7e035f50d7a7799b0ac30cb243b56d3a5361376
[INFO] running `Command { std: "docker" "start" "-a" "255777bd128418558a43590fc7e035f50d7a7799b0ac30cb243b56d3a5361376", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling safecast v0.1.1
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling collate v0.1.10
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling tokio-util v0.6.8
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling uplock v0.1.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling destream v0.5.0
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling handlebars v4.1.3
[INFO] [stderr]    Compiling tc-error v0.2.5
[INFO] [stderr]    Compiling number-general v0.3.12
[INFO] [stderr]    Compiling tbon v0.3.5
[INFO] [stderr]    Compiling tcgeneric v0.2.2
[INFO] [stderr]    Compiling tc-value v0.2.1
[INFO] [stderr]    Compiling tc-transact v0.8.1
[INFO] [stderr]    Compiling tc-btree v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.73s
[INFO] running `Command { std: "docker" "inspect" "255777bd128418558a43590fc7e035f50d7a7799b0ac30cb243b56d3a5361376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "255777bd128418558a43590fc7e035f50d7a7799b0ac30cb243b56d3a5361376", kill_on_drop: false }`
[INFO] [stdout] 255777bd128418558a43590fc7e035f50d7a7799b0ac30cb243b56d3a5361376
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ac87259c6fcc5fe6f8c4908522919ccb0bce87b8741140ea0d100b5535a8f925
[INFO] running `Command { std: "docker" "start" "-a" "ac87259c6fcc5fe6f8c4908522919ccb0bce87b8741140ea0d100b5535a8f925", kill_on_drop: false }`
[INFO] [stderr]    Compiling tc-btree v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `Command { std: "docker" "inspect" "ac87259c6fcc5fe6f8c4908522919ccb0bce87b8741140ea0d100b5535a8f925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac87259c6fcc5fe6f8c4908522919ccb0bce87b8741140ea0d100b5535a8f925", kill_on_drop: false }`
[INFO] [stdout] ac87259c6fcc5fe6f8c4908522919ccb0bce87b8741140ea0d100b5535a8f925
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 45cfd030c71f617d1f5ac46436820e3a30bb6fcd61004723c8467629ac23ec42
[INFO] running `Command { std: "docker" "start" "-a" "45cfd030c71f617d1f5ac46436820e3a30bb6fcd61004723c8467629ac23ec42", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tc_btree-7c86b5f3170a7f03)
[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] [stderr]    Doc-tests tc-btree
[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" "45cfd030c71f617d1f5ac46436820e3a30bb6fcd61004723c8467629ac23ec42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45cfd030c71f617d1f5ac46436820e3a30bb6fcd61004723c8467629ac23ec42", kill_on_drop: false }`
[INFO] [stdout] 45cfd030c71f617d1f5ac46436820e3a30bb6fcd61004723c8467629ac23ec42