[INFO] cloning repository https://github.com/yuya373/slack-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuya373/slack-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuya373%2Fslack-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuya373%2Fslack-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72d00539329da77df4d77a2d4d30567a51628814
[INFO] checking yuya373/slack-rs against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuya373%2Fslack-rs" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuya373/slack-rs on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuya373/slack-rs
[INFO] finished tweaking git repo https://github.com/yuya373/slack-rs
[INFO] tweaked toml for git repo https://github.com/yuya373/slack-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/yuya373/slack-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8293105b061efa165b11ab1686f170f2072447f810a666314a2ec175911a01ba
[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" "8293105b061efa165b11ab1686f170f2072447f810a666314a2ec175911a01ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8293105b061efa165b11ab1686f170f2072447f810a666314a2ec175911a01ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8293105b061efa165b11ab1686f170f2072447f810a666314a2ec175911a01ba", kill_on_drop: false }`
[INFO] [stdout] 8293105b061efa165b11ab1686f170f2072447f810a666314a2ec175911a01ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--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] f2620a17e69cad830bcb319ba6f8c9f1742159bcb278efc4abacf5cf3197b0b7
[INFO] running `Command { std: "docker" "start" "-a" "f2620a17e69cad830bcb319ba6f8c9f1742159bcb278efc4abacf5cf3197b0b7", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking indexmap v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
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[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking utf-8 v0.7.4
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling openssl-sys v0.9.36
[INFO] [stderr]     Checking encoding_rs v0.8.6
[INFO] [stderr]     Checking dirs v1.0.3
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking serde_json v1.0.28
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking libflate v0.1.16
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking http v0.1.13
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[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-codec v0.1.0
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[INFO] [stderr]    Compiling phf_generator v0.7.23
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[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-threadpool v0.1.6
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking serde_urlencoded v0.5.3
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[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking tokio-dns-unofficial v0.3.1
[INFO] [stderr]     Checking tungstenite v0.6.0
[INFO] [stderr]     Checking tokio-tls v0.2.0
[INFO] [stderr]     Checking hyper v0.12.10
[INFO] [stderr]     Checking tokio-tungstenite v0.6.0
[INFO] [stderr]     Checking hyper-tls v0.3.0
[INFO] [stderr]     Checking reqwest v0.9.0
[INFO] [stderr]     Checking slack-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `futures::future`
[INFO] [stdout]  --> src/model/workspace.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future`
[INFO] [stdout]  --> src/model/workspace.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use futures::future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::Sink`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use futures::Sink;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Channel`, `Group`, `Im`, `Me`, `Mpim`, `Team`
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 | use model::{Channel, Group, Im, Me, Mpim, Team, Workspace};
[INFO] [stdout]    |             ^^^^^^^  ^^^^^  ^^  ^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::Sink`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use futures::Sink;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Channel`, `Group`, `Im`, `Me`, `Mpim`, `Team`
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 | use model::{Channel, Group, Im, Me, Mpim, Team, Workspace};
[INFO] [stdout]    |             ^^^^^^^  ^^^^^  ^^  ^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `All`
[INFO] [stdout]  --> src/api/conversations.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     All,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `All`
[INFO] [stdout]  --> src/api/conversations.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     All,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Timestamp`
[INFO] [stdout]   --> src/model/mod.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | type Timestamp = String;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Timestamp`
[INFO] [stdout]   --> src/model/mod.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | type Timestamp = String;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Type` should have a snake case name
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Type: ActionType,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to snake case: `type`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Type` should have a snake case name
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Type: ActionType,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to snake case: `type`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/rtm/ping.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | /             tx.unbounded_send(Action::ping())
[INFO] [stdout] 12 | |                 .map_err(|err| println!("Failed to send Action::ping, {:?}", err));
[INFO] [stdout]    | |___________________________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/rtm/ping.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | /             tx.unbounded_send(Action::ping())
[INFO] [stdout] 12 | |                 .map_err(|err| println!("Failed to send Action::ping, {:?}", err));
[INFO] [stdout]    | |___________________________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Type` should have a snake case name
[INFO] [stdout]   --> src/rtm/handler.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Type: &'a str,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to snake case: `type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Type` should have a snake case name
[INFO] [stdout]   --> src/rtm/handler.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Type: &'a str,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to snake case: `type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "f2620a17e69cad830bcb319ba6f8c9f1742159bcb278efc4abacf5cf3197b0b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2620a17e69cad830bcb319ba6f8c9f1742159bcb278efc4abacf5cf3197b0b7", kill_on_drop: false }`
[INFO] [stdout] f2620a17e69cad830bcb319ba6f8c9f1742159bcb278efc4abacf5cf3197b0b7