[INFO] crate artifact_lib 0.2.1 is already in cache
[INFO] checking artifact_lib-0.2.1 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate artifact_lib 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate artifact_lib 0.2.1 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate artifact_lib 0.2.1
[INFO] finished tweaking crates.io crate artifact_lib 0.2.1
[INFO] tweaked toml for crates.io crate artifact_lib 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e561eab3f646a617d401c5e538a196baa9368bb0be121e99fc6277fcf31e20b7
[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" "e561eab3f646a617d401c5e538a196baa9368bb0be121e99fc6277fcf31e20b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e561eab3f646a617d401c5e538a196baa9368bb0be121e99fc6277fcf31e20b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e561eab3f646a617d401c5e538a196baa9368bb0be121e99fc6277fcf31e20b7", kill_on_drop: false }`
[INFO] [stdout] e561eab3f646a617d401c5e538a196baa9368bb0be121e99fc6277fcf31e20b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91c0f759014b8f4772c00a6b4644f268e6a089ca9e4597251bf401234bdce086
[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" "91c0f759014b8f4772c00a6b4644f268e6a089ca9e4597251bf401234bdce086", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking string_cache_shared v0.3.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling encoding_rs v0.8.23
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling markup5ever v0.7.5
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]    Compiling html5ever v0.22.5
[INFO] [stderr]     Checking ammonia v1.2.0
[INFO] [stderr]     Checking artifact_serde v0.2.1
[INFO] [stderr]     Checking artifact_lib v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `my_deck`
[INFO] [stdout]    --> src/lib.rs:426:13
[INFO] [stdout]     |
[INFO] [stdout] 426 |         let my_deck = my_artifact.get_deck(my_adc);
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_deck`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` 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 06s
[INFO] running `Command { std: "docker" "inspect" "91c0f759014b8f4772c00a6b4644f268e6a089ca9e4597251bf401234bdce086", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91c0f759014b8f4772c00a6b4644f268e6a089ca9e4597251bf401234bdce086", kill_on_drop: false }`
[INFO] [stdout] 91c0f759014b8f4772c00a6b4644f268e6a089ca9e4597251bf401234bdce086