[INFO] fetching crate simple_redis 0.5.1...
[INFO] checking simple_redis-0.5.1 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] extracting crate simple_redis 0.5.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate simple_redis 0.5.1 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple_redis 0.5.1
[INFO] finished tweaking crates.io crate simple_redis 0.5.1
[INFO] tweaked toml for crates.io crate simple_redis 0.5.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate simple_redis 0.5.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9c3c30efb76bcd742532e0ea8cfc1a8ca4d67b7ba0662f9971ff67b9803cb8f
[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" "c9c3c30efb76bcd742532e0ea8cfc1a8ca4d67b7ba0662f9971ff67b9803cb8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9c3c30efb76bcd742532e0ea8cfc1a8ca4d67b7ba0662f9971ff67b9803cb8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9c3c30efb76bcd742532e0ea8cfc1a8ca4d67b7ba0662f9971ff67b9803cb8f", kill_on_drop: false }`
[INFO] [stdout] c9c3c30efb76bcd742532e0ea8cfc1a8ca4d67b7ba0662f9971ff67b9803cb8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16b01503f74a43ff65c63303e749c24095602c9ae40813238e130d4cc7a915fb
[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" "16b01503f74a43ff65c63303e749c24095602c9ae40813238e130d4cc7a915fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling fsio v0.1.2
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling nias v0.5.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking combine v4.1.0
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking envmnt v0.8.2
[INFO] [stderr]     Checking ci_info v0.10.1
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling async-trait v0.1.30
[INFO] [stderr]    Compiling rusty-hook v0.11.1
[INFO] [stderr]     Checking redis v0.16.0
[INFO] [stderr]     Checking simple_redis v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `invalid_codeblock_attribute`
[INFO] [stdout]   --> src/lib.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     invalid_codeblock_attribute,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `invalid_codeblock_attributes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `invalid_codeblock_attribute`
[INFO] [stdout]   --> src/lib.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     invalid_codeblock_attribute,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `invalid_codeblock_attributes`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.11s
[INFO] running `Command { std: "docker" "inspect" "16b01503f74a43ff65c63303e749c24095602c9ae40813238e130d4cc7a915fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16b01503f74a43ff65c63303e749c24095602c9ae40813238e130d4cc7a915fb", kill_on_drop: false }`
[INFO] [stdout] 16b01503f74a43ff65c63303e749c24095602c9ae40813238e130d4cc7a915fb