[INFO] fetching crate rok 0.1.2...
[INFO] testing rok-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rok 0.1.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rok 0.1.2 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 rok 0.1.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rok 0.1.2
[INFO] tweaked toml for crates.io crate rok 0.1.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate rok 0.1.2 already has a lockfile, it will not be regenerated
[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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] c4becf89b6dbf6833c396695e3d45e3ff717ba847af40cfef06e46231dd0a07c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c4becf89b6dbf6833c396695e3d45e3ff717ba847af40cfef06e46231dd0a07c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4becf89b6dbf6833c396695e3d45e3ff717ba847af40cfef06e46231dd0a07c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4becf89b6dbf6833c396695e3d45e3ff717ba847af40cfef06e46231dd0a07c", kill_on_drop: false }`
[INFO] [stdout] c4becf89b6dbf6833c396695e3d45e3ff717ba847af40cfef06e46231dd0a07c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d4e8c99f902f691d9ee2c3b5e8ca41fbab03fb86530068f56cddae005a2a6df5
[INFO] running `Command { std: "docker" "start" "-a" "d4e8c99f902f691d9ee2c3b5e8ca41fbab03fb86530068f56cddae005a2a6df5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]    Compiling route-recognizer v0.3.0
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling tracing-log v0.1.1
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling headers v0.3.3
[INFO] [stderr]    Compiling rand_core v0.6.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.12
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling futures-util v0.3.12
[INFO] [stderr]    Compiling tracing v0.1.23
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling tracing-subscriber v0.2.15
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling pin-project v1.0.5
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling futures-executor v0.3.12
[INFO] [stderr]    Compiling futures v0.3.12
[INFO] [stderr]    Compiling tokio-util v0.6.3
[INFO] [stderr]    Compiling h2 v0.3.0
[INFO] [stderr]    Compiling hyper v0.14.4
[INFO] [stderr]    Compiling rok v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `Command { std: "docker" "inspect" "d4e8c99f902f691d9ee2c3b5e8ca41fbab03fb86530068f56cddae005a2a6df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4e8c99f902f691d9ee2c3b5e8ca41fbab03fb86530068f56cddae005a2a6df5", kill_on_drop: false }`
[INFO] [stdout] d4e8c99f902f691d9ee2c3b5e8ca41fbab03fb86530068f56cddae005a2a6df5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 08341a105f3df75651678a2860530cdef9a55c206e3ec56481c68d723d32fdb2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "08341a105f3df75651678a2860530cdef9a55c206e3ec56481c68d723d32fdb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rok v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.19s
[INFO] running `Command { std: "docker" "inspect" "08341a105f3df75651678a2860530cdef9a55c206e3ec56481c68d723d32fdb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08341a105f3df75651678a2860530cdef9a55c206e3ec56481c68d723d32fdb2", kill_on_drop: false }`
[INFO] [stdout] 08341a105f3df75651678a2860530cdef9a55c206e3ec56481c68d723d32fdb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 1390eb0722e0c91b752513e9aa69b0cdb1eb57126242f5aead3c428d3051ab70
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1390eb0722e0c91b752513e9aa69b0cdb1eb57126242f5aead3c428d3051ab70", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rok-4d513a9854ff82d5)
[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] [stderr]    Doc-tests rok
[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" "1390eb0722e0c91b752513e9aa69b0cdb1eb57126242f5aead3c428d3051ab70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1390eb0722e0c91b752513e9aa69b0cdb1eb57126242f5aead3c428d3051ab70", kill_on_drop: false }`
[INFO] [stdout] 1390eb0722e0c91b752513e9aa69b0cdb1eb57126242f5aead3c428d3051ab70