[INFO] fetching crate phase21 0.11.0...
[INFO] checking phase21-0.11.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate phase21 0.11.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate phase21 0.11.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate phase21 0.11.0
[INFO] finished tweaking crates.io crate phase21 0.11.0
[INFO] tweaked toml for crates.io crate phase21 0.11.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate phase21 0.11.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 47b2cdae2661638b2c34801d671d6900fcfe19672bfb16e86a1eef6b6171e3a4
[INFO] running `Command { std: "docker" "start" "-a" "47b2cdae2661638b2c34801d671d6900fcfe19672bfb16e86a1eef6b6171e3a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47b2cdae2661638b2c34801d671d6900fcfe19672bfb16e86a1eef6b6171e3a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b2cdae2661638b2c34801d671d6900fcfe19672bfb16e86a1eef6b6171e3a4", kill_on_drop: false }`
[INFO] [stdout] 47b2cdae2661638b2c34801d671d6900fcfe19672bfb16e86a1eef6b6171e3a4
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3912b2bdd498d56e216a417b2f7241c2e68bcd5826cbd4b6b06f2413e624a744
[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" "3912b2bdd498d56e216a417b2f7241c2e68bcd5826cbd4b6b06f2413e624a744", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking blake2b_simd v0.5.10
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking ahash v0.5.6
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-queue v0.3.0
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]    Compiling fff v0.2.3
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking hkdf v0.10.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking crossbeam v0.8.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling fff_derive v0.2.2
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking groupy v0.3.1
[INFO] [stderr]     Checking paired v0.21.0
[INFO] [stderr]     Checking bellperson v0.12.0
[INFO] [stderr]     Checking phase21 v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.78s
[INFO] running `Command { std: "docker" "inspect" "3912b2bdd498d56e216a417b2f7241c2e68bcd5826cbd4b6b06f2413e624a744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3912b2bdd498d56e216a417b2f7241c2e68bcd5826cbd4b6b06f2413e624a744", kill_on_drop: false }`
[INFO] [stdout] 3912b2bdd498d56e216a417b2f7241c2e68bcd5826cbd4b6b06f2413e624a744