[INFO] fetching crate ttcore 0.2.35...
[INFO] checking ttcore-0.2.35 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate ttcore 0.2.35 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ttcore 0.2.35 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ttcore 0.2.35
[INFO] finished tweaking crates.io crate ttcore 0.2.35
[INFO] tweaked toml for crates.io crate ttcore 0.2.35 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded myutil v0.2.652
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3eb9ad961ce61f5ed2d22f63b6120920f11d931c01d90784ae3a52bf95a8dc13
[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" "3eb9ad961ce61f5ed2d22f63b6120920f11d931c01d90784ae3a52bf95a8dc13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3eb9ad961ce61f5ed2d22f63b6120920f11d931c01d90784ae3a52bf95a8dc13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb9ad961ce61f5ed2d22f63b6120920f11d931c01d90784ae3a52bf95a8dc13", kill_on_drop: false }`
[INFO] [stdout] 3eb9ad961ce61f5ed2d22f63b6120920f11d931c01d90784ae3a52bf95a8dc13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44851aab75b33f9e79f3d766ef9a7bb395c9d5e17fd1b5464db102628a94a41e
[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" "44851aab75b33f9e79f3d766ef9a7bb395c9d5e17fd1b5464db102628a94a41e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling standback v0.2.15
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking myutil v0.2.652
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking ttcore_def v0.2.35
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking ttcore v0.2.35 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.91s
[INFO] running `Command { std: "docker" "inspect" "44851aab75b33f9e79f3d766ef9a7bb395c9d5e17fd1b5464db102628a94a41e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44851aab75b33f9e79f3d766ef9a7bb395c9d5e17fd1b5464db102628a94a41e", kill_on_drop: false }`
[INFO] [stdout] 44851aab75b33f9e79f3d766ef9a7bb395c9d5e17fd1b5464db102628a94a41e