[INFO] cloning repository https://github.com/aaroncm/c720-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aaroncm/c720-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaroncm%2Fc720-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaroncm%2Fc720-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ceaa1bd5d7dcff66eafe963b067b602a5580a88e
[INFO] checking aaroncm/c720-rust against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaroncm%2Fc720-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aaroncm/c720-rust on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aaroncm/c720-rust
[INFO] finished tweaking git repo https://github.com/aaroncm/c720-rust
[INFO] tweaked toml for git repo https://github.com/aaroncm/c720-rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/aaroncm/c720-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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 rayon-core v1.5.0
[INFO] [stderr]   Downloaded bitflags v1.1.0
[INFO] [stderr]   Downloaded memoffset v0.5.1
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded unicode-width v0.1.5
[INFO] [stderr]   Downloaded atty v0.2.13
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded ryu v1.0.0
[INFO] [stderr]   Downloaded regex v1.2.1
[INFO] [stderr]   Downloaded termios v0.3.1
[INFO] [stderr]   Downloaded encode_unicode v0.3.5
[INFO] [stderr]   Downloaded scopeguard v1.0.0
[INFO] [stderr]   Downloaded parking_lot_core v0.6.2
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.56
[INFO] [stderr]   Downloaded lazy_static v0.2.11
[INFO] [stderr]   Downloaded either v1.5.2
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded lock_api v0.3.1
[INFO] [stderr]   Downloaded nodrop v0.1.13
[INFO] [stderr]   Downloaded cloudabi v0.0.3
[INFO] [stderr]   Downloaded clicolors-control v1.0.0
[INFO] [stderr]   Downloaded semver-parser v0.7.0
[INFO] [stderr]   Downloaded rayon v0.9.0
[INFO] [stderr]   Downloaded serde_json v1.0.40
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded regex-syntax v0.6.11
[INFO] [stderr]   Downloaded libc v0.2.60
[INFO] [stderr]   Downloaded winapi v0.3.7
[INFO] [stderr]   Downloaded indicatif v0.8.0
[INFO] [stderr]   Downloaded semver v0.9.0
[INFO] [stderr]   Downloaded rustc_version v0.2.3
[INFO] [stderr]   Downloaded num_cpus v1.10.1
[INFO] [stderr]   Downloaded smallvec v0.6.10
[INFO] [stderr]   Downloaded ucd-util v0.1.5
[INFO] [stderr]   Downloaded parking_lot v0.9.0
[INFO] [stderr]   Downloaded utf8-ranges v1.0.4
[INFO] [stderr]   Downloaded arrayvec v0.4.11
[INFO] [stderr]   Downloaded crossbeam-deque v0.6.3
[INFO] [stderr]   Downloaded cfg-if v0.1.9
[INFO] [stderr]   Downloaded crossbeam-queue v0.1.2
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.6
[INFO] [stderr]   Downloaded console v0.7.7
[INFO] [stderr]   Downloaded crossbeam-epoch v0.7.2
[INFO] [stderr]   Downloaded serde v1.0.98
[INFO] [stderr]   Downloaded itoa v0.4.4
[INFO] [stderr]   Downloaded lazy_static v1.3.0
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78ab2338aa88c51256c1ed7996b2001aff543ece2b807c5967f08c8cbba51633
[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" "78ab2338aa88c51256c1ed7996b2001aff543ece2b807c5967f08c8cbba51633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78ab2338aa88c51256c1ed7996b2001aff543ece2b807c5967f08c8cbba51633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78ab2338aa88c51256c1ed7996b2001aff543ece2b807c5967f08c8cbba51633", kill_on_drop: false }`
[INFO] [stdout] 78ab2338aa88c51256c1ed7996b2001aff543ece2b807c5967f08c8cbba51633
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7681dbcfe4eee8b93a59f0c432bef0f2ddfd7539e1bdaccc6f62cfa2baf84ded
[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" "7681dbcfe4eee8b93a59f0c432bef0f2ddfd7539e1bdaccc6f62cfa2baf84ded", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking arrayvec v0.4.11
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking rayon v0.9.0
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking indicatif v0.8.0
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking c720 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.18s
[INFO] running `Command { std: "docker" "inspect" "7681dbcfe4eee8b93a59f0c432bef0f2ddfd7539e1bdaccc6f62cfa2baf84ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7681dbcfe4eee8b93a59f0c432bef0f2ddfd7539e1bdaccc6f62cfa2baf84ded", kill_on_drop: false }`
[INFO] [stdout] 7681dbcfe4eee8b93a59f0c432bef0f2ddfd7539e1bdaccc6f62cfa2baf84ded