[INFO] fetching crate oakc 0.6.1...
[INFO] checking oakc-0.6.1 against beta for pr-78714
[INFO] extracting crate oakc 0.6.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate oakc 0.6.1 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 oakc 0.6.1
[INFO] finished tweaking crates.io crate oakc 0.6.1
[INFO] tweaked toml for crates.io crate oakc 0.6.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate oakc 0.6.1 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a141ea94412e0be43bd122b30ade92d06a3db651b557ba14ba492121d92993a2
[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" "a141ea94412e0be43bd122b30ade92d06a3db651b557ba14ba492121d92993a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a141ea94412e0be43bd122b30ade92d06a3db651b557ba14ba492121d92993a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a141ea94412e0be43bd122b30ade92d06a3db651b557ba14ba492121d92993a2", kill_on_drop: false }`
[INFO] [stdout] a141ea94412e0be43bd122b30ade92d06a3db651b557ba14ba492121d92993a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b9d0d3084729c85fad94b4ac03fb5a74185b7c54e72e2699a5b880b065b29fa
[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" "8b9d0d3084729c85fad94b4ac03fb5a74185b7c54e72e2699a5b880b065b29fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking asciicolor v0.1.0
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]     Checking minimad v0.6.5
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]     Checking libc v0.2.74
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling lalrpop-util v0.19.0
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking comment-strip v0.1.3
[INFO] [stderr]     Checking comment v0.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking termimad v0.8.25
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]     Checking lalrpop v0.19.0
[INFO] [stderr]    Compiling oakc v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 48s
[INFO] running `Command { std: "docker" "inspect" "8b9d0d3084729c85fad94b4ac03fb5a74185b7c54e72e2699a5b880b065b29fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b9d0d3084729c85fad94b4ac03fb5a74185b7c54e72e2699a5b880b065b29fa", kill_on_drop: false }`
[INFO] [stdout] 8b9d0d3084729c85fad94b4ac03fb5a74185b7c54e72e2699a5b880b065b29fa