[INFO] cloning repository https://github.com/cesare/rust_slack_client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cesare/rust_slack_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcesare%2Frust_slack_client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcesare%2Frust_slack_client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6cc3488df262e171bb813216403502d05f109a54
[INFO] testing cesare/rust_slack_client against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcesare%2Frust_slack_client" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cesare/rust_slack_client on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cesare/rust_slack_client
[INFO] finished tweaking git repo https://github.com/cesare/rust_slack_client
[INFO] tweaked toml for git repo https://github.com/cesare/rust_slack_client written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/cesare/rust_slack_client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-io v0.1.8
[INFO] [stderr]   Downloaded tokio-tcp v0.1.1
[INFO] [stderr]   Downloaded quote v0.6.8
[INFO] [stderr]   Downloaded security-framework-sys v0.2.1
[INFO] [stderr]   Downloaded tokio-fs v0.1.3
[INFO] [stderr]   Downloaded string v0.1.1
[INFO] [stderr]   Downloaded tokio-codec v0.1.0
[INFO] [stderr]   Downloaded h2 v0.1.12
[INFO] [stderr]   Downloaded openssl-sys v0.9.35
[INFO] [stderr]   Downloaded native-tls v0.2.1
[INFO] [stderr]   Downloaded crossbeam-deque v0.6.1
[INFO] [stderr]   Downloaded serde_json v1.0.26
[INFO] [stderr]   Downloaded futures v0.1.23
[INFO] [stderr]   Downloaded security-framework v0.2.1
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.6
[INFO] [stderr]   Downloaded lock_api v0.1.3
[INFO] [stderr]   Downloaded httparse v1.3.2
[INFO] [stderr]   Downloaded http v0.1.10
[INFO] [stderr]   Downloaded tokio-udp v0.1.2
[INFO] [stderr]   Downloaded mio-uds v0.6.6
[INFO] [stderr]   Downloaded hyper-tls v0.3.0
[INFO] [stderr]   Downloaded serde_derive v1.0.76
[INFO] [stderr]   Downloaded url v1.7.1
[INFO] [stderr]   Downloaded tempfile v3.0.3
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.1
[INFO] [stderr]   Downloaded itoa v0.4.2
[INFO] [stderr]   Downloaded mio v0.6.15
[INFO] [stderr]   Downloaded parking_lot_core v0.3.0
[INFO] [stderr]   Downloaded byteorder v1.2.6
[INFO] [stderr]   Downloaded openssl v0.10.11
[INFO] [stderr]   Downloaded bytes v0.4.9
[INFO] [stderr]   Downloaded proc-macro2 v0.4.17
[INFO] [stderr]   Downloaded serde v1.0.76
[INFO] [stderr]   Downloaded log v0.4.4
[INFO] [stderr]   Downloaded schannel v0.1.13
[INFO] [stderr]   Downloaded hyper v0.12.9
[INFO] [stderr]   Downloaded tokio-reactor v0.1.5
[INFO] [stderr]   Downloaded ryu v0.2.6
[INFO] [stderr]   Downloaded tokio-executor v0.1.4
[INFO] [stderr]   Downloaded crossbeam-epoch v0.5.2
[INFO] [stderr]   Downloaded tokio-uds v0.2.1
[INFO] [stderr]   Downloaded tokio-timer v0.2.6
[INFO] [stderr]   Downloaded tokio v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4426bc6dcd4fac701a9b2e4ff5ad09a24e7049bc1cb85d58979c3de8a3218097
[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" "4426bc6dcd4fac701a9b2e4ff5ad09a24e7049bc1cb85d58979c3de8a3218097", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4426bc6dcd4fac701a9b2e4ff5ad09a24e7049bc1cb85d58979c3de8a3218097", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4426bc6dcd4fac701a9b2e4ff5ad09a24e7049bc1cb85d58979c3de8a3218097", kill_on_drop: false }`
[INFO] [stdout] 4426bc6dcd4fac701a9b2e4ff5ad09a24e7049bc1cb85d58979c3de8a3218097
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60b40429ec549f0f730a1c9bcf5964121e712094c28c5d60d14a68eee62a524a
[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" "60b40429ec549f0f730a1c9bcf5964121e712094c28c5d60d14a68eee62a524a", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.23
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling cc v1.0.23
[INFO] [stderr]    Compiling itoa v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.17
[INFO] [stderr]    Compiling openssl v0.10.11
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]    Compiling serde v1.0.76
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]    Compiling string v0.1.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling log v0.4.4
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling bytes v0.4.9
[INFO] [stderr]    Compiling mio v0.6.15
[INFO] [stderr]    Compiling lock_api v0.1.3
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling http v0.1.10
[INFO] [stderr]    Compiling openssl-sys v0.9.35
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling mio-uds v0.6.6
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling parking_lot_core v0.3.0
[INFO] [stderr]    Compiling tokio-executor v0.1.4
[INFO] [stderr]    Compiling tokio-io v0.1.8
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling tokio-threadpool v0.1.6
[INFO] [stderr]    Compiling tokio-current-thread v0.1.1
[INFO] [stderr]    Compiling tokio-timer v0.2.6
[INFO] [stderr]    Compiling url v1.7.1
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.5
[INFO] [stderr]    Compiling tokio-fs v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.1
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.1
[INFO] [stderr]    Compiling tokio v0.1.8
[INFO] [stderr]    Compiling h2 v0.1.12
[INFO] [stderr]    Compiling serde_derive v1.0.76
[INFO] [stderr]    Compiling serde_json v1.0.26
[INFO] [stderr]    Compiling hyper v0.12.9
[INFO] [stderr]    Compiling hyper-tls v0.3.0
[INFO] [stderr]    Compiling slack_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `client`
[INFO] [stdout]   --> src/conversation.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     client: HttpClient,
[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 dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "60b40429ec549f0f730a1c9bcf5964121e712094c28c5d60d14a68eee62a524a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b40429ec549f0f730a1c9bcf5964121e712094c28c5d60d14a68eee62a524a", kill_on_drop: false }`
[INFO] [stdout] 60b40429ec549f0f730a1c9bcf5964121e712094c28c5d60d14a68eee62a524a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de0a85b8bd0934901245043d225633173e89ba0005cc3d4c00a56b4a2a30c26b
[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" "de0a85b8bd0934901245043d225633173e89ba0005cc3d4c00a56b4a2a30c26b", kill_on_drop: false }`
[INFO] [stderr]    Compiling slack_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `client`
[INFO] [stdout]   --> src/conversation.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     client: HttpClient,
[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] [stdout] warning: field is never read: `client`
[INFO] [stdout]   --> src/conversation.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     client: HttpClient,
[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 2.89s
[INFO] running `Command { std: "docker" "inspect" "de0a85b8bd0934901245043d225633173e89ba0005cc3d4c00a56b4a2a30c26b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de0a85b8bd0934901245043d225633173e89ba0005cc3d4c00a56b4a2a30c26b", kill_on_drop: false }`
[INFO] [stdout] de0a85b8bd0934901245043d225633173e89ba0005cc3d4c00a56b4a2a30c26b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] df2c6e574060f050bbbc1a1c0e162ca95bef464c1d69f516fbc1e262ecaf9b32
[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" "df2c6e574060f050bbbc1a1c0e162ca95bef464c1d69f516fbc1e262ecaf9b32", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `client`
[INFO] [stderr]   --> src/conversation.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     client: HttpClient,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `client`
[INFO] [stderr]   --> src/conversation.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     client: HttpClient,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slack_client-89acd5b8df5a8b08
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/list_conversations-a0f583bd8f34753f
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/post_message-dd4a7c3c89f35163
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rtm-e861c1c73e05a0c3
[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
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/show_identity-3f2d9cff87b2d3d2
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slack_client
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "df2c6e574060f050bbbc1a1c0e162ca95bef464c1d69f516fbc1e262ecaf9b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df2c6e574060f050bbbc1a1c0e162ca95bef464c1d69f516fbc1e262ecaf9b32", kill_on_drop: false }`
[INFO] [stdout] df2c6e574060f050bbbc1a1c0e162ca95bef464c1d69f516fbc1e262ecaf9b32