[INFO] cloning repository https://github.com/leptonyu/salak.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leptonyu/salak.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleptonyu%2Fsalak.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleptonyu%2Fsalak.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf8dfb9d67025b1180c1b93ce4f88b0708837c56
[INFO] checking leptonyu/salak.rs against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleptonyu%2Fsalak.rs" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leptonyu/salak.rs on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leptonyu/salak.rs
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/leptonyu/salak.rs
[INFO] tweaked toml for git repo https://github.com/leptonyu/salak.rs written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/leptonyu/salak.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "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] 28eeb818c4e8fa33bd0fdee1ac5d23fc5ef11de300bc746b9374697ef68dfdc5
[INFO] running `Command { std: "docker" "start" "-a" "28eeb818c4e8fa33bd0fdee1ac5d23fc5ef11de300bc746b9374697ef68dfdc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28eeb818c4e8fa33bd0fdee1ac5d23fc5ef11de300bc746b9374697ef68dfdc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28eeb818c4e8fa33bd0fdee1ac5d23fc5ef11de300bc746b9374697ef68dfdc5", kill_on_drop: false }`
[INFO] [stdout] 28eeb818c4e8fa33bd0fdee1ac5d23fc5ef11de300bc746b9374697ef68dfdc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2aedec1952e316d84b7f6d5e9c7a4a10547fcd5fc699e8338bc87e9f949225b7
[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" "2aedec1952e316d84b7f6d5e9c7a4a10547fcd5fc699e8338bc87e9f949225b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking proc-macro2 v1.0.24
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking salak_derive v0.2.0 (/opt/rustwide/workdir/salak_derive)
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling quickcheck_macros v1.0.0
[INFO] [stderr]     Checking salak v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.74s
[INFO] running `Command { std: "docker" "inspect" "2aedec1952e316d84b7f6d5e9c7a4a10547fcd5fc699e8338bc87e9f949225b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aedec1952e316d84b7f6d5e9c7a4a10547fcd5fc699e8338bc87e9f949225b7", kill_on_drop: false }`
[INFO] [stdout] 2aedec1952e316d84b7f6d5e9c7a4a10547fcd5fc699e8338bc87e9f949225b7