[INFO] cloning repository https://github.com/achimcc/ink-backend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/achimcc/ink-backend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fachimcc%2Fink-backend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fachimcc%2Fink-backend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61b78fc58c59126a72c8cc559233951c81063bad
[INFO] testing achimcc/ink-backend against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fachimcc%2Fink-backend" "/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/achimcc/ink-backend on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/achimcc/ink-backend
[INFO] finished tweaking git repo https://github.com/achimcc/ink-backend
[INFO] tweaked toml for git repo https://github.com/achimcc/ink-backend written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/achimcc/ink-backend already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded route-recognizer v0.1.13
[INFO] [stderr]   Downloaded iron v0.6.1
[INFO] [stderr]   Downloaded protobuf v2.24.1
[INFO] [stderr]   Downloaded hubcaps v0.6.2
[INFO] [stderr]   Downloaded corsware v0.2.0
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76893ebf74f7162cffa0f3ad72cb5ce8a7bc7147a63b95d31edfb61ae7351aea
[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" "76893ebf74f7162cffa0f3ad72cb5ce8a7bc7147a63b95d31edfb61ae7351aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76893ebf74f7162cffa0f3ad72cb5ce8a7bc7147a63b95d31edfb61ae7351aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76893ebf74f7162cffa0f3ad72cb5ce8a7bc7147a63b95d31edfb61ae7351aea", kill_on_drop: false }`
[INFO] [stdout] 76893ebf74f7162cffa0f3ad72cb5ce8a7bc7147a63b95d31edfb61ae7351aea
[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=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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd277ece79db26ca85298c6bffb22237356f59174813eb05c095fc9fe469ae20
[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" "cd277ece79db26ca85298c6bffb22237356f59174813eb05c095fc9fe469ae20", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling httparse v1.3.6
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling protobuf v2.24.1
[INFO] [stderr]    Compiling hyperx v1.3.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling prometheus v0.12.0
[INFO] [stderr]    Compiling route-recognizer v0.1.13
[INFO] [stderr]    Compiling sequence_trie v0.3.6
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling pem v0.8.3
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling snafu v0.6.10
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling simple_asn1 v0.4.1
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling jsonwebtoken v7.2.0
[INFO] [stderr]    Compiling strum v0.20.0
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling iron v0.6.1
[INFO] [stderr]    Compiling persistent v0.4.0
[INFO] [stderr]    Compiling router v0.6.0
[INFO] [stderr]    Compiling mount v0.4.0
[INFO] [stderr]    Compiling corsware v0.2.0
[INFO] [stderr]    Compiling bodyparser v0.8.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling hyper v0.13.10
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.10
[INFO] [stderr]    Compiling hubcaps v0.6.2
[INFO] [stderr]    Compiling ink-backend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 54s
[INFO] running `Command { std: "docker" "inspect" "cd277ece79db26ca85298c6bffb22237356f59174813eb05c095fc9fe469ae20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd277ece79db26ca85298c6bffb22237356f59174813eb05c095fc9fe469ae20", kill_on_drop: false }`
[INFO] [stdout] cd277ece79db26ca85298c6bffb22237356f59174813eb05c095fc9fe469ae20
[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=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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81a8d9740665f9e882625a6a4f97aa51d2f8e4111ffa4cb6e299f6fcddb34c33
[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" "81a8d9740665f9e882625a6a4f97aa51d2f8e4111ffa4cb6e299f6fcddb34c33", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ink-backend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `one_test_at_a_time`
[INFO] [stdout]    --> src/sandbox.rs:728:8
[INFO] [stdout]     |
[INFO] [stdout] 728 |     fn one_test_at_a_time() -> impl Drop {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "81a8d9740665f9e882625a6a4f97aa51d2f8e4111ffa4cb6e299f6fcddb34c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81a8d9740665f9e882625a6a4f97aa51d2f8e4111ffa4cb6e299f6fcddb34c33", kill_on_drop: false }`
[INFO] [stdout] 81a8d9740665f9e882625a6a4f97aa51d2f8e4111ffa4cb6e299f6fcddb34c33
[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=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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 586eb551156df5bd3ebf6940e6ba09e6c3577217d0a8538f1e9fe4aed6be424b
[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" "586eb551156df5bd3ebf6940e6ba09e6c3577217d0a8538f1e9fe4aed6be424b", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `one_test_at_a_time`
[INFO] [stderr]    --> src/sandbox.rs:728:8
[INFO] [stderr]     |
[INFO] [stderr] 728 |     fn one_test_at_a_time() -> impl Drop {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ink-backend` (bin "ink-backend" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ink_backend-9a386ebe5fd9855b)
[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" "586eb551156df5bd3ebf6940e6ba09e6c3577217d0a8538f1e9fe4aed6be424b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "586eb551156df5bd3ebf6940e6ba09e6c3577217d0a8538f1e9fe4aed6be424b", kill_on_drop: false }`
[INFO] [stdout] 586eb551156df5bd3ebf6940e6ba09e6c3577217d0a8538f1e9fe4aed6be424b