[INFO] cloning repository https://github.com/wdullaer/scotty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wdullaer/scotty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwdullaer%2Fscotty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwdullaer%2Fscotty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d6eda34ecc547ea756af2dd5d4f9b48a270720d
[INFO] checking wdullaer/scotty against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwdullaer%2Fscotty" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wdullaer/scotty 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 git repo https://github.com/wdullaer/scotty
[INFO] finished tweaking git repo https://github.com/wdullaer/scotty
[INFO] tweaked toml for git repo https://github.com/wdullaer/scotty written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/wdullaer/scotty 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] [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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] 5de82f1dcd01ed404f6dc7b1f4c20b21e4371c9ae2d14f4b555f7ef505d5db55
[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" "5de82f1dcd01ed404f6dc7b1f4c20b21e4371c9ae2d14f4b555f7ef505d5db55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5de82f1dcd01ed404f6dc7b1f4c20b21e4371c9ae2d14f4b555f7ef505d5db55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5de82f1dcd01ed404f6dc7b1f4c20b21e4371c9ae2d14f4b555f7ef505d5db55", kill_on_drop: false }`
[INFO] [stdout] 5de82f1dcd01ed404f6dc7b1f4c20b21e4371c9ae2d14f4b555f7ef505d5db55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 557ab9e6aabacc699dbc8f1193b1bbf858c32049e40f348c9136a55e52a06440
[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" "557ab9e6aabacc699dbc8f1193b1bbf858c32049e40f348c9136a55e52a06440", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling fst v0.4.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking tabwriter v1.2.1
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking thread_local v1.0.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking getrandom v0.2.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking fuzzy-matcher v0.3.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking directories v3.0.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking rand v0.8.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking sled v0.34.6
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking scotty v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "557ab9e6aabacc699dbc8f1193b1bbf858c32049e40f348c9136a55e52a06440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "557ab9e6aabacc699dbc8f1193b1bbf858c32049e40f348c9136a55e52a06440", kill_on_drop: false }`
[INFO] [stdout] 557ab9e6aabacc699dbc8f1193b1bbf858c32049e40f348c9136a55e52a06440