[INFO] fetching crate ramp 0.5.9...
[INFO] checking ramp-0.5.9 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate ramp 0.5.9 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ramp 0.5.9 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ramp 0.5.9
[INFO] finished tweaking crates.io crate ramp 0.5.9
[INFO] tweaked toml for crates.io crate ramp 0.5.9 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate ramp 0.5.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06e652ed507f418106d7c3fcdb11fd01a58761f5b96e1d935ca22f180d030de9
[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" "06e652ed507f418106d7c3fcdb11fd01a58761f5b96e1d935ca22f180d030de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06e652ed507f418106d7c3fcdb11fd01a58761f5b96e1d935ca22f180d030de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06e652ed507f418106d7c3fcdb11fd01a58761f5b96e1d935ca22f180d030de9", kill_on_drop: false }`
[INFO] [stdout] 06e652ed507f418106d7c3fcdb11fd01a58761f5b96e1d935ca22f180d030de9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 945bed0c3c9b0fa5ea95233f5e038654f46d1316d4240d4752e3b9611b9312b3
[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" "945bed0c3c9b0fa5ea95233f5e038654f46d1316d4240d4752e3b9611b9312b3", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.29
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]    Compiling rustc-cfg v0.2.0
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking ieee754 v0.2.2
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]     Checking rand v0.4.1
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.3
[INFO] [stderr]     Checking num-bigint v0.1.40
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking quickcheck v0.6.0
[INFO] [stderr]    Compiling ramp v0.5.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple patterns overlap on their endpoints
[INFO] [stdout]    --> tests/quickcheck.rs:152:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |                     11 ..= 100 => 5,
[INFO] [stdout]     |                     ---------- this range overlaps on `100_usize`...
[INFO] [stdout] 152 |                     100 ..= 1000 => 25,
[INFO] [stdout]     |                     ^^^^^^^^^^^^ ... with this range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(overlapping_range_endpoints)]` on by default
[INFO] [stdout]     = note: you likely meant to write mutually exclusive ranges
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.18s
[INFO] running `Command { std: "docker" "inspect" "945bed0c3c9b0fa5ea95233f5e038654f46d1316d4240d4752e3b9611b9312b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "945bed0c3c9b0fa5ea95233f5e038654f46d1316d4240d4752e3b9611b9312b3", kill_on_drop: false }`
[INFO] [stdout] 945bed0c3c9b0fa5ea95233f5e038654f46d1316d4240d4752e3b9611b9312b3