[INFO] fetching crate slr_parser 0.0.20...
[INFO] checking slr_parser-0.0.20 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate slr_parser 0.0.20 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate slr_parser 0.0.20 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slr_parser 0.0.20
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate slr_parser 0.0.20
[INFO] tweaked toml for crates.io crate slr_parser 0.0.20 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate slr_parser 0.0.20 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a129f36d8ff225f8bb2e61a9d4be8889478e7c2810ce093706025e49aafd642
[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" "1a129f36d8ff225f8bb2e61a9d4be8889478e7c2810ce093706025e49aafd642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a129f36d8ff225f8bb2e61a9d4be8889478e7c2810ce093706025e49aafd642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a129f36d8ff225f8bb2e61a9d4be8889478e7c2810ce093706025e49aafd642", kill_on_drop: false }`
[INFO] [stdout] 1a129f36d8ff225f8bb2e61a9d4be8889478e7c2810ce093706025e49aafd642
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd9a64bf8565570ed2ccf239a3d7b6078125579db849999fe2cabf14e16e2778
[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" "dd9a64bf8565570ed2ccf239a3d7b6078125579db849999fe2cabf14e16e2778", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking slr_parser v0.0.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.36s
[INFO] running `Command { std: "docker" "inspect" "dd9a64bf8565570ed2ccf239a3d7b6078125579db849999fe2cabf14e16e2778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd9a64bf8565570ed2ccf239a3d7b6078125579db849999fe2cabf14e16e2778", kill_on_drop: false }`
[INFO] [stdout] dd9a64bf8565570ed2ccf239a3d7b6078125579db849999fe2cabf14e16e2778