[INFO] fetching crate amts-prelude 0.1.2...
[INFO] checking amts-prelude-0.1.2 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate amts-prelude 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate amts-prelude 0.1.2 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amts-prelude 0.1.2
[INFO] finished tweaking crates.io crate amts-prelude 0.1.2
[INFO] tweaked toml for crates.io crate amts-prelude 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 813ca586d8bb1be1aa0f9f36214f823e01cf9d95d4050d7f609c5fcb738871d6
[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" "813ca586d8bb1be1aa0f9f36214f823e01cf9d95d4050d7f609c5fcb738871d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "813ca586d8bb1be1aa0f9f36214f823e01cf9d95d4050d7f609c5fcb738871d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "813ca586d8bb1be1aa0f9f36214f823e01cf9d95d4050d7f609c5fcb738871d6", kill_on_drop: false }`
[INFO] [stdout] 813ca586d8bb1be1aa0f9f36214f823e01cf9d95d4050d7f609c5fcb738871d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b02bd3ddd0e1a2ae2eab71597a16e98bd1938bcd2e9885f30418069dbe5898d
[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" "9b02bd3ddd0e1a2ae2eab71597a16e98bd1938bcd2e9885f30418069dbe5898d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking signature v1.3.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking vec-arena v1.1.0
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking ed25519 v1.0.3
[INFO] [stderr]     Checking async-lock v2.4.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking base64-url v1.4.10
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking async-io v1.4.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking async-net v1.5.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking nuid v0.2.2
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking async-rustls v0.1.2
[INFO] [stderr]     Checking rustls-native-certs v0.4.0
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking curve25519-dalek v3.1.0
[INFO] [stderr]     Checking subtle-encoding v0.5.1
[INFO] [stderr]     Checking signatory v0.21.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking nkeys v0.0.11
[INFO] [stderr]     Checking nats v0.8.6
[INFO] [stderr]     Checking bson v1.2.2
[INFO] [stderr]     Checking amts-prelude v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.96s
[INFO] running `Command { std: "docker" "inspect" "9b02bd3ddd0e1a2ae2eab71597a16e98bd1938bcd2e9885f30418069dbe5898d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b02bd3ddd0e1a2ae2eab71597a16e98bd1938bcd2e9885f30418069dbe5898d", kill_on_drop: false }`
[INFO] [stdout] 9b02bd3ddd0e1a2ae2eab71597a16e98bd1938bcd2e9885f30418069dbe5898d