[INFO] fetching crate canonical_collections 0.4.0...
[INFO] checking canonical_collections-0.4.0 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate canonical_collections 0.4.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate canonical_collections 0.4.0 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate canonical_collections 0.4.0
[INFO] finished tweaking crates.io crate canonical_collections 0.4.0
[INFO] tweaked toml for crates.io crate canonical_collections 0.4.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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] be6ca0f7768bd4055ccaa17d72b541c795716565590cf5799833d738fc75ef9d
[INFO] running `Command { std: "docker" "start" "-a" "be6ca0f7768bd4055ccaa17d72b541c795716565590cf5799833d738fc75ef9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be6ca0f7768bd4055ccaa17d72b541c795716565590cf5799833d738fc75ef9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be6ca0f7768bd4055ccaa17d72b541c795716565590cf5799833d738fc75ef9d", kill_on_drop: false }`
[INFO] [stdout] be6ca0f7768bd4055ccaa17d72b541c795716565590cf5799833d738fc75ef9d
[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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] ffd7b65cce6e5277fb3c2d631602622a93918e52bd181c9f1394c383b3d38612
[INFO] running `Command { std: "docker" "start" "-a" "ffd7b65cce6e5277fb3c2d631602622a93918e52bd181c9f1394c383b3d38612", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]     Checking parity-wasm v0.41.0
[INFO] [stderr]     Checking seahash v3.0.7
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking blake2b_simd v0.3.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking wasmi-validation v0.3.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking appendix v0.2.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking wasmi v0.6.2
[INFO] [stderr]    Compiling derive_arbitrary v0.3.3
[INFO] [stderr]    Compiling arbitrary v0.3.3
[INFO] [stderr]     Checking canonical v0.4.4
[INFO] [stderr]    Compiling canonical_derive v0.4.1
[INFO] [stderr]     Checking canonical_host v0.4.3
[INFO] [stderr]     Checking canonical_collections v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.12s
[INFO] running `Command { std: "docker" "inspect" "ffd7b65cce6e5277fb3c2d631602622a93918e52bd181c9f1394c383b3d38612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffd7b65cce6e5277fb3c2d631602622a93918e52bd181c9f1394c383b3d38612", kill_on_drop: false }`
[INFO] [stdout] ffd7b65cce6e5277fb3c2d631602622a93918e52bd181c9f1394c383b3d38612