[INFO] fetching crate econf 0.1.1...
[INFO] checking econf-0.1.1 against beta for pr-78714
[INFO] extracting crate econf 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate econf 0.1.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate econf 0.1.1
[INFO] finished tweaking crates.io crate econf 0.1.1
[INFO] tweaked toml for crates.io crate econf 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate econf 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-rational v0.1.42
[INFO] [stderr]   Downloaded num-bigint v0.1.44
[INFO] [stderr]   Downloaded yaml-rust v0.4.3
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded linked-hash-map v0.5.2
[INFO] [stderr]   Downloaded ucd-util v0.1.3
[INFO] [stderr]   Downloaded econf-derive v0.1.0
[INFO] [stderr]   Downloaded lazy_static v1.3.0
[INFO] [stderr]   Downloaded dtoa v0.4.4
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded quote v0.6.12
[INFO] [stderr]   Downloaded num-iter v0.1.39
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded syn v0.15.39
[INFO] [stderr]   Downloaded num-integer v0.1.41
[INFO] [stderr]   Downloaded lazy_static v0.2.11
[INFO] [stderr]   Downloaded autocfg v0.1.4
[INFO] [stderr]   Downloaded utf8-ranges v1.0.3
[INFO] [stderr]   Downloaded memchr v2.2.0
[INFO] [stderr]   Downloaded parse_duration v1.0.1
[INFO] [stderr]   Downloaded cfg-if v0.1.9
[INFO] [stderr]   Downloaded simple_logger v0.5.0
[INFO] [stderr]   Downloaded libc v0.2.58
[INFO] [stderr]   Downloaded redox_syscall v0.1.54
[INFO] [stderr]   Downloaded log v0.4.6
[INFO] [stderr]   Downloaded num-complex v0.1.43
[INFO] [stderr]   Downloaded num v0.1.42
[INFO] [stderr]   Downloaded serde v1.0.94
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded winapi v0.3.7
[INFO] [stderr]   Downloaded num-traits v0.2.8
[INFO] [stderr]   Downloaded serde_yaml v0.8.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4a85f1194495c5a688e4b59d31c403b254588243656ec09fe2d672c9a130991
[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" "b4a85f1194495c5a688e4b59d31c403b254588243656ec09fe2d672c9a130991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4a85f1194495c5a688e4b59d31c403b254588243656ec09fe2d672c9a130991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4a85f1194495c5a688e4b59d31c403b254588243656ec09fe2d672c9a130991", kill_on_drop: false }`
[INFO] [stdout] b4a85f1194495c5a688e4b59d31c403b254588243656ec09fe2d672c9a130991
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a9a735f3cfba05c7c62123245ae07d1c630e182410cbf79cffa8f1084d8d4c2
[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" "5a9a735f3cfba05c7c62123245ae07d1c630e182410cbf79cffa8f1084d8d4c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking simple_logger v0.5.0
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling econf-derive v0.1.0
[INFO] [stderr]     Checking parse_duration v1.0.1
[INFO] [stderr]     Checking serde_yaml v0.8.9
[INFO] [stderr]     Checking econf v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.58s
[INFO] running `Command { std: "docker" "inspect" "5a9a735f3cfba05c7c62123245ae07d1c630e182410cbf79cffa8f1084d8d4c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a9a735f3cfba05c7c62123245ae07d1c630e182410cbf79cffa8f1084d8d4c2", kill_on_drop: false }`
[INFO] [stdout] 5a9a735f3cfba05c7c62123245ae07d1c630e182410cbf79cffa8f1084d8d4c2