[INFO] crate led_bargraph 0.2.1 is already in cache
[INFO] checking led_bargraph-0.2.1 against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] extracting crate led_bargraph 0.2.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate led_bargraph 0.2.1 on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate led_bargraph 0.2.1
[INFO] finished tweaking crates.io crate led_bargraph 0.2.1
[INFO] tweaked toml for crates.io crate led_bargraph 0.2.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", 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] 624fee29c5d796f92f9d66240c559277c65838c6f9fe7dfb2dca193701bf2235
[INFO] running `Command { std: "docker" "start" "-a" "624fee29c5d796f92f9d66240c559277c65838c6f9fe7dfb2dca193701bf2235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "624fee29c5d796f92f9d66240c559277c65838c6f9fe7dfb2dca193701bf2235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "624fee29c5d796f92f9d66240c559277c65838c6f9fe7dfb2dca193701bf2235", kill_on_drop: false }`
[INFO] [stdout] 624fee29c5d796f92f9d66240c559277c65838c6f9fe7dfb2dca193701bf2235
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "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] d5ec37ac436e93f2baff3a99c1fbb155a66634e49fc145d0e1418e259cf1c933
[INFO] running `Command { std: "docker" "start" "-a" "d5ec37ac436e93f2baff3a99c1fbb155a66634e49fc145d0e1418e259cf1c933", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]     Checking slog-scope v4.3.0
[INFO] [stderr]     Checking slog-stdlog v3.0.5
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking slog-async v2.5.0
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking slog-term v2.6.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking spidev v0.3.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking i2cdev v0.4.4
[INFO] [stderr]     Checking sysfs_gpio v0.5.4
[INFO] [stderr]     Checking ht16k33 v0.3.0
[INFO] [stderr]     Checking linux-embedded-hal v0.2.2
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking led_bargraph v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:477:17
[INFO] [stdout]     |
[INFO] [stdout] 477 |             let mut color = match led {
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:477:17
[INFO] [stdout]     |
[INFO] [stdout] 477 |             let mut color = match led {
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` 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 51.04s
[INFO] running `Command { std: "docker" "inspect" "d5ec37ac436e93f2baff3a99c1fbb155a66634e49fc145d0e1418e259cf1c933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5ec37ac436e93f2baff3a99c1fbb155a66634e49fc145d0e1418e259cf1c933", kill_on_drop: false }`
[INFO] [stdout] d5ec37ac436e93f2baff3a99c1fbb155a66634e49fc145d0e1418e259cf1c933