[INFO] cloning repository https://github.com/aumykun/db
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aumykun/db" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faumykun%2Fdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faumykun%2Fdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec4d12dcb2d757e8ec47fe62162143e3be5e23c0
[INFO] checking aumykun/db against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faumykun%2Fdb" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aumykun/db on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aumykun/db
[INFO] finished tweaking git repo https://github.com/aumykun/db
[INFO] tweaked toml for git repo https://github.com/aumykun/db written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/aumykun/db already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/Hummer12007/problem-rs`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_xorshift v0.1.0
[INFO] [stderr]   Downloaded rand_chacha v0.1.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+8b72f65b805cbe4c261de45030d663f524f27376" "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] 391819bd080641aebb33261e982cb293d6b2802324a7e9546723a84574a18864
[INFO] running `Command { std: "docker" "start" "-a" "391819bd080641aebb33261e982cb293d6b2802324a7e9546723a84574a18864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "391819bd080641aebb33261e982cb293d6b2802324a7e9546723a84574a18864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "391819bd080641aebb33261e982cb293d6b2802324a7e9546723a84574a18864", kill_on_drop: false }`
[INFO] [stdout] 391819bd080641aebb33261e982cb293d6b2802324a7e9546723a84574a18864
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd495992eb3aa78b7296ba5db4abcd86b4f25746593a13eb0e3924d5e8f69822
[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" "cd495992eb3aa78b7296ba5db4abcd86b4f25746593a13eb0e3924d5e8f69822", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling safemem v0.3.0
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling ident_case v1.0.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling derive_builder v0.7.0
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking same-file v1.0.4
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[INFO] [stderr]     Checking log v0.4.6
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[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling pear_codegen v0.1.2
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[INFO] [stderr]     Checking coco v0.2.1
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling smallvec v0.6.7
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking historian v3.0.4
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.4
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking hyper v0.10.15
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking sled_sync v0.2.0
[INFO] [stderr]     Checking sled_sync v0.1.5
[INFO] [stderr]     Checking pagetable v0.1.3
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.14.9/src/parsers.rs:68:48
[INFO] [stdout]      |
[INFO] [stdout] 68   |           fn $name(i: $crate::buffer::Cursor) -> $crate::synom::PResult<$o> {
[INFO] [stdout]      |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found `()`
[INFO] [stdout] 69   |               $submac!(i, $($args)*)
[INFO] [stdout]      |                                    - help: consider removing this semicolon
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.14.9/src/expr.rs:1785:12
[INFO] [stdout]      |
[INFO] [stdout] 1785 |       named!(and_call -> (token::Paren, Punctuated<Expr, Token![,]>),
[INFO] [stdout]      |       -      -------- implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]      |  _____|
[INFO] [stdout]      | |
[INFO] [stdout] 1786 | |         parens!(Punctuated::parse_terminated)
[INFO] [stdout] 1787 | |     );
[INFO] [stdout]      | |______- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note:   expected enum `std::result::Result<((Paren, punctuated::Punctuated<expr::Expr, Comma>), buffer::Cursor<'_>), error::ParseError>`
[INFO] [stdout]              found unit type `()`
[INFO] [stdout]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking notify v4.0.6
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cd495992eb3aa78b7296ba5db4abcd86b4f25746593a13eb0e3924d5e8f69822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd495992eb3aa78b7296ba5db4abcd86b4f25746593a13eb0e3924d5e8f69822", kill_on_drop: false }`
[INFO] [stdout] cd495992eb3aa78b7296ba5db4abcd86b4f25746593a13eb0e3924d5e8f69822