[INFO] updating cached repository alyjak/distributed-chat [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/alyjak/distributed-chat [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/alyjak/distributed-chat" "work/ex/beta-1.37-6/sources/1.36.0/gh/alyjak/distributed-chat"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/alyjak/distributed-chat'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/alyjak/distributed-chat" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alyjak/distributed-chat"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alyjak/distributed-chat'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 100050eb8b2a9e91ccdc97cb89ac857cafdad61b [INFO] sha for GitHub repo alyjak/distributed-chat: 100050eb8b2a9e91ccdc97cb89ac857cafdad61b [INFO] validating manifest of alyjak/distributed-chat on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of alyjak/distributed-chat on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing alyjak/distributed-chat [INFO] finished frobbing alyjak/distributed-chat [INFO] frobbed toml for alyjak/distributed-chat written to work/ex/beta-1.37-6/sources/1.36.0/gh/alyjak/distributed-chat/Cargo.toml [INFO] started frobbing alyjak/distributed-chat [INFO] finished frobbing alyjak/distributed-chat [INFO] frobbed toml for alyjak/distributed-chat written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alyjak/distributed-chat/Cargo.toml [INFO] crate alyjak/distributed-chat already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing alyjak/distributed-chat against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alyjak/distributed-chat:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] b0b32b58d341d02a27a2531d2fd94778b947f230376071cc7cf83620094faf2c [INFO] running `"docker" "start" "-a" "b0b32b58d341d02a27a2531d2fd94778b947f230376071cc7cf83620094faf2c"` [INFO] [stderr] Compiling tokio-io v0.1.10 [INFO] [stderr] Compiling parking_lot v0.6.4 [INFO] [stderr] Compiling tokio-reactor v0.1.6 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling tokio-fs v0.1.4 [INFO] [stderr] Compiling tokio-uds v0.2.3 [INFO] [stderr] Compiling tokio-tcp v0.1.2 [INFO] [stderr] Compiling tokio-udp v0.1.2 [INFO] [stderr] Compiling tokio v0.1.11 [INFO] [stderr] Compiling assignment v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/message.rs:226:9 [INFO] [stderr] | [INFO] [stderr] 226 | / write!( [INFO] [stderr] 227 | | f, [INFO] [stderr] 228 | | "[{} {}]", [INFO] [stderr] 229 | | unsafe { from_utf8_unchecked(&self.from[..]) }, [INFO] [stderr] 230 | | self.typ [INFO] [stderr] 231 | | ); [INFO] [stderr] | |__________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/message.rs:235:17 [INFO] [stderr] | [INFO] [stderr] 235 | write!(f, ": {}", unsafe { from_utf8_unchecked(&self.content[..]) }); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:26:29 [INFO] [stderr] | [INFO] [stderr] 26 | fn main() -> Result<(), Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 13.58s [INFO] running `"docker" "inspect" "b0b32b58d341d02a27a2531d2fd94778b947f230376071cc7cf83620094faf2c"` [INFO] running `"docker" "rm" "-f" "b0b32b58d341d02a27a2531d2fd94778b947f230376071cc7cf83620094faf2c"` [INFO] [stdout] b0b32b58d341d02a27a2531d2fd94778b947f230376071cc7cf83620094faf2c [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alyjak/distributed-chat:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] f7b868fedbd65afaef1e6eeffa61cc371f89e20026248b107a65f81e8a22c8eb [INFO] running `"docker" "start" "-a" "f7b868fedbd65afaef1e6eeffa61cc371f89e20026248b107a65f81e8a22c8eb"` [INFO] [stderr] Compiling assignment v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:26:29 [INFO] [stderr] | [INFO] [stderr] 26 | fn main() -> Result<(), Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/message.rs:226:9 [INFO] [stderr] | [INFO] [stderr] 226 | / write!( [INFO] [stderr] 227 | | f, [INFO] [stderr] 228 | | "[{} {}]", [INFO] [stderr] 229 | | unsafe { from_utf8_unchecked(&self.from[..]) }, [INFO] [stderr] 230 | | self.typ [INFO] [stderr] 231 | | ); [INFO] [stderr] | |__________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/message.rs:235:17 [INFO] [stderr] | [INFO] [stderr] 235 | write!(f, ": {}", unsafe { from_utf8_unchecked(&self.content[..]) }); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.76s [INFO] running `"docker" "inspect" "f7b868fedbd65afaef1e6eeffa61cc371f89e20026248b107a65f81e8a22c8eb"` [INFO] running `"docker" "rm" "-f" "f7b868fedbd65afaef1e6eeffa61cc371f89e20026248b107a65f81e8a22c8eb"` [INFO] [stdout] f7b868fedbd65afaef1e6eeffa61cc371f89e20026248b107a65f81e8a22c8eb [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alyjak/distributed-chat:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"` [INFO] [stdout] 4eb6aad38fed8a57a4dccfe2351feb66ca0deb3716ed19fc9d3c69e889c9e1c7 [INFO] running `"docker" "start" "-a" "4eb6aad38fed8a57a4dccfe2351feb66ca0deb3716ed19fc9d3c69e889c9e1c7"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running /opt/crater/target/debug/deps/assignment-6e914785fedad8c0 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/assignment-83de60f3590bf8cb [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests assignment [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "4eb6aad38fed8a57a4dccfe2351feb66ca0deb3716ed19fc9d3c69e889c9e1c7"` [INFO] running `"docker" "rm" "-f" "4eb6aad38fed8a57a4dccfe2351feb66ca0deb3716ed19fc9d3c69e889c9e1c7"` [INFO] [stdout] 4eb6aad38fed8a57a4dccfe2351feb66ca0deb3716ed19fc9d3c69e889c9e1c7