[INFO] fetching crate c3_sdk 0.1.0...
[INFO] checking c3_sdk-0.1.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate c3_sdk 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate c3_sdk 0.1.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate c3_sdk 0.1.0
[INFO] finished tweaking crates.io crate c3_sdk 0.1.0
[INFO] tweaked toml for crates.io crate c3_sdk 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded buffer v0.1.9
[INFO] [stderr]   Downloaded mac v0.0.2
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40a8d9f28e4a91c4bd8d38814a56262f8bc7325c998ae5cf9ca500a7dab9cc8a
[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" "40a8d9f28e4a91c4bd8d38814a56262f8bc7325c998ae5cf9ca500a7dab9cc8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40a8d9f28e4a91c4bd8d38814a56262f8bc7325c998ae5cf9ca500a7dab9cc8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a8d9f28e4a91c4bd8d38814a56262f8bc7325c998ae5cf9ca500a7dab9cc8a", kill_on_drop: false }`
[INFO] [stdout] 40a8d9f28e4a91c4bd8d38814a56262f8bc7325c998ae5cf9ca500a7dab9cc8a
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4392fc424392581a7daf54c8d9e282133f19d0b4ba3b662943393a639cb217c
[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" "f4392fc424392581a7daf54c8d9e282133f19d0b4ba3b662943393a639cb217c", kill_on_drop: false }`
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking mac v0.0.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking buffer v0.1.9
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking c3_sdk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]   --> src/client.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     state: State,
[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: `state`
[INFO] [stdout]   --> src/client.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     state: State,
[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 37.60s
[INFO] running `Command { std: "docker" "inspect" "f4392fc424392581a7daf54c8d9e282133f19d0b4ba3b662943393a639cb217c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4392fc424392581a7daf54c8d9e282133f19d0b4ba3b662943393a639cb217c", kill_on_drop: false }`
[INFO] [stdout] f4392fc424392581a7daf54c8d9e282133f19d0b4ba3b662943393a639cb217c