[INFO] fetching crate swp 1.0.3...
[INFO] checking swp-1.0.3 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate swp 1.0.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate swp 1.0.3 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 crates.io crate swp 1.0.3
[INFO] finished tweaking crates.io crate swp 1.0.3
[INFO] tweaked toml for crates.io crate swp 1.0.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate swp 1.0.3 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded yansi v0.5.0
[INFO] [stderr]   Downloaded dunce v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 1a7afd2d90fecb7f5cfe5c718c19a9542045cbfe0a7ae5642edb14c68c1da5e1
[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" "1a7afd2d90fecb7f5cfe5c718c19a9542045cbfe0a7ae5642edb14c68c1da5e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a7afd2d90fecb7f5cfe5c718c19a9542045cbfe0a7ae5642edb14c68c1da5e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7afd2d90fecb7f5cfe5c718c19a9542045cbfe0a7ae5642edb14c68c1da5e1", kill_on_drop: false }`
[INFO] [stdout] 1a7afd2d90fecb7f5cfe5c718c19a9542045cbfe0a7ae5642edb14c68c1da5e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 75e77cb18d68020adaf5124c2254d32b129a5911860ea9c2cf592a51e283e123
[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" "75e77cb18d68020adaf5124c2254d32b129a5911860ea9c2cf592a51e283e123", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking dunce v1.0.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking crossbeam-utils v0.7.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking swp v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/settings.rs:135:4
[INFO] [stdout]     |
[INFO] [stdout] 135 |             _ => panic!("Unexpected error returned"),
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` 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 30.23s
[INFO] running `Command { std: "docker" "inspect" "75e77cb18d68020adaf5124c2254d32b129a5911860ea9c2cf592a51e283e123", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75e77cb18d68020adaf5124c2254d32b129a5911860ea9c2cf592a51e283e123", kill_on_drop: false }`
[INFO] [stdout] 75e77cb18d68020adaf5124c2254d32b129a5911860ea9c2cf592a51e283e123