[INFO] cloning repository https://github.com/andykilroy/mcast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andykilroy/mcast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandykilroy%2Fmcast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandykilroy%2Fmcast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f0bd729f772f1bcc0c982e37265d7d49a8491ef
[INFO] checking andykilroy/mcast against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandykilroy%2Fmcast" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andykilroy/mcast on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andykilroy/mcast
[INFO] finished tweaking git repo https://github.com/andykilroy/mcast
[INFO] tweaked toml for git repo https://github.com/andykilroy/mcast written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/andykilroy/mcast already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded socket2 v0.3.9
[INFO] [stderr]   Downloaded backtrace v0.3.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a670af11548d31b1da3a621d3da3bd65ab08c9b51bd047189393a9c03e1a77b9
[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" "a670af11548d31b1da3a621d3da3bd65ab08c9b51bd047189393a9c03e1a77b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a670af11548d31b1da3a621d3da3bd65ab08c9b51bd047189393a9c03e1a77b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a670af11548d31b1da3a621d3da3bd65ab08c9b51bd047189393a9c03e1a77b9", kill_on_drop: false }`
[INFO] [stdout] a670af11548d31b1da3a621d3da3bd65ab08c9b51bd047189393a9c03e1a77b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 7570daaa50841ba499458446dccb9ec99a1486d8dc55db6f68cc159e2a577671
[INFO] running `Command { std: "docker" "start" "-a" "7570daaa50841ba499458446dccb9ec99a1486d8dc55db6f68cc159e2a577671", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking log v0.4.7
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking socket2 v0.3.9
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking backtrace v0.3.12
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking mcast v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `parse_ipv4_groups`
[INFO] [stdout]   --> src/main.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn parse_ipv4_groups(groups_str: &[String]) -> Result<Vec<Ipv4Addr>, Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stdout] error: Trailing semicolon in macro
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/escargot-0.4.0/src/run.rs:119:61
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 format::diagnostic::DiagnosticLevel::Ice => error!("{}", content),
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Trailing semicolon in macro
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/escargot-0.4.0/src/run.rs:120:63
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 format::diagnostic::DiagnosticLevel::Error => error!("{}", content),
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Trailing semicolon in macro
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/escargot-0.4.0/src/run.rs:121:65
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 format::diagnostic::DiagnosticLevel::Warning => warn!("{}", content),
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `warn` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Trailing semicolon in macro
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/escargot-0.4.0/src/run.rs:122:62
[INFO] [stdout]     |
[INFO] [stdout] 122 |                 format::diagnostic::DiagnosticLevel::Note => info!("{}", content),
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `info` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Trailing semicolon in macro
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/escargot-0.4.0/src/run.rs:123:62
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 format::diagnostic::DiagnosticLevel::Help => info!("{}", content),
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `info` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Trailing semicolon in macro
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/escargot-0.4.0/src/run.rs:125:22
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 _ => warn!("Unknown message: {:#?}", msg),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `warn` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `escargot`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "7570daaa50841ba499458446dccb9ec99a1486d8dc55db6f68cc159e2a577671", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7570daaa50841ba499458446dccb9ec99a1486d8dc55db6f68cc159e2a577671", kill_on_drop: false }`
[INFO] [stdout] 7570daaa50841ba499458446dccb9ec99a1486d8dc55db6f68cc159e2a577671