[INFO] fetching crate comet 2.0.0...
[INFO] checking comet-2.0.0 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate comet 2.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate comet 2.0.0 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate comet 2.0.0
[INFO] finished tweaking crates.io crate comet 2.0.0
[INFO] tweaked toml for crates.io crate comet 2.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0f3b2d51d3533c3c901636465e372d10a33b8f5bc64d2ee32ee8fa9103188a5
[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" "c0f3b2d51d3533c3c901636465e372d10a33b8f5bc64d2ee32ee8fa9103188a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0f3b2d51d3533c3c901636465e372d10a33b8f5bc64d2ee32ee8fa9103188a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0f3b2d51d3533c3c901636465e372d10a33b8f5bc64d2ee32ee8fa9103188a5", kill_on_drop: false }`
[INFO] [stdout] c0f3b2d51d3533c3c901636465e372d10a33b8f5bc64d2ee32ee8fa9103188a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49a6445ed5b69aa1328ffa20de3f9f5d1f5bd00ba7340d6b3669fa27794d60ea
[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" "49a6445ed5b69aa1328ffa20de3f9f5d1f5bd00ba7340d6b3669fa27794d60ea", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking inotify v0.2.3
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking filetime v0.1.15
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking notify v2.6.3
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]     Checking comet v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut f = try!(File::open(Path::new(cwd).join(".comet.json")));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     try!(f.read_to_string(&mut file_content));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut f = try!(File::open(Path::new(cwd).join(".comet.json")));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     try!(f.read_to_string(&mut file_content));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.09s
[INFO] running `Command { std: "docker" "inspect" "49a6445ed5b69aa1328ffa20de3f9f5d1f5bd00ba7340d6b3669fa27794d60ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49a6445ed5b69aa1328ffa20de3f9f5d1f5bd00ba7340d6b3669fa27794d60ea", kill_on_drop: false }`
[INFO] [stdout] 49a6445ed5b69aa1328ffa20de3f9f5d1f5bd00ba7340d6b3669fa27794d60ea