[INFO] fetching crate fastmod 0.4.1...
[INFO] checking fastmod-0.4.1 against beta for pr-78714
[INFO] extracting crate fastmod 0.4.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate fastmod 0.4.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fastmod 0.4.1
[INFO] finished tweaking crates.io crate fastmod 0.4.1
[INFO] tweaked toml for crates.io crate fastmod 0.4.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate fastmod 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 5632524c1cfb52e2ddf43e3f80c9ae8c47f3d689c5afa09c83e447bdb5d5e138
[INFO] running `Command { std: "docker" "start" "-a" "5632524c1cfb52e2ddf43e3f80c9ae8c47f3d689c5afa09c83e447bdb5d5e138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5632524c1cfb52e2ddf43e3f80c9ae8c47f3d689c5afa09c83e447bdb5d5e138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5632524c1cfb52e2ddf43e3f80c9ae8c47f3d689c5afa09c83e447bdb5d5e138", kill_on_drop: false }`
[INFO] [stdout] 5632524c1cfb52e2ddf43e3f80c9ae8c47f3d689c5afa09c83e447bdb5d5e138
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3ac93242e5bd19118a57f4d3f4be96cc4e94e01646e37fcc267b84024d4b450
[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" "e3ac93242e5bd19118a57f4d3f4be96cc4e94e01646e37fcc267b84024d4b450", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking rprompt v1.0.5
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking grep-matcher v0.1.4
[INFO] [stderr]     Checking mio v0.7.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking assert_cmd v1.0.1
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking grep-regex v0.1.8
[INFO] [stderr]     Checking grep-cli v0.1.5
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]     Checking encoding_rs_io v0.1.7
[INFO] [stderr]     Checking grep-searcher v0.1.7
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking grep-printer v0.1.5
[INFO] [stderr]     Checking grep v0.2.7
[INFO] [stderr]     Checking fastmod v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.30s
[INFO] running `Command { std: "docker" "inspect" "e3ac93242e5bd19118a57f4d3f4be96cc4e94e01646e37fcc267b84024d4b450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3ac93242e5bd19118a57f4d3f4be96cc4e94e01646e37fcc267b84024d4b450", kill_on_drop: false }`
[INFO] [stdout] e3ac93242e5bd19118a57f4d3f4be96cc4e94e01646e37fcc267b84024d4b450