[INFO] updating cached repository et4te/swim [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/et4te/swim [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/et4te/swim" "work/ex/beta-1.38-1/sources/1.37.0/gh/et4te/swim"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/et4te/swim'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/et4te/swim" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/et4te/swim"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/et4te/swim'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3bb49e22e1cfe12cd081aeac06ceb883535a92a7 [INFO] sha for GitHub repo et4te/swim: 3bb49e22e1cfe12cd081aeac06ceb883535a92a7 [INFO] validating manifest of et4te/swim on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of et4te/swim on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing et4te/swim [INFO] finished frobbing et4te/swim [INFO] frobbed toml for et4te/swim written to work/ex/beta-1.38-1/sources/1.37.0/gh/et4te/swim/Cargo.toml [INFO] started frobbing et4te/swim [INFO] finished frobbing et4te/swim [INFO] frobbed toml for et4te/swim written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/et4te/swim/Cargo.toml [INFO] crate et4te/swim already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing et4te/swim against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/et4te/swim:/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-2019-08-13" "build" "--frozen"` [INFO] [stdout] dc10aa8460cf13c3f54d1d6f2e1f9dcf96788df364e6381b5657c629908a1e64 [INFO] running `"docker" "start" "-a" "dc10aa8460cf13c3f54d1d6f2e1f9dcf96788df364e6381b5657c629908a1e64"` [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling lazycell v1.2.0 [INFO] [stderr] Compiling regex v1.0.6 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling serde v1.0.80 [INFO] [stderr] Compiling memchr v2.1.1 [INFO] [stderr] Compiling owning_ref v0.3.3 [INFO] [stderr] Compiling arrayvec v0.4.7 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling crossbeam-utils v0.6.1 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling crossbeam-utils v0.6.1 (https://github.com/crossbeam-rs/crossbeam#d627067b) [INFO] [stderr] Compiling colored v1.6.1 [INFO] [stderr] Compiling regex-syntax v0.6.3 [INFO] [stderr] Compiling tokio-executor v0.1.5 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling humantime v1.1.1 [INFO] [stderr] Compiling rand v0.5.5 [INFO] [stderr] Compiling lock_api v0.1.4 [INFO] [stderr] Compiling bytes v0.4.10 [INFO] [stderr] Compiling crossbeam-epoch v0.6.1 [INFO] [stderr] Compiling crossbeam-epoch v0.6.1 (https://github.com/crossbeam-rs/crossbeam#d627067b) [INFO] [stderr] Compiling clap v2.32.0 [INFO] [stderr] Compiling mio v0.6.16 [INFO] [stderr] Compiling tokio-timer v0.2.7 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling tokio-current-thread v0.1.3 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling tokio-io v0.1.10 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling tokio-serde v0.3.0 [INFO] [stderr] Compiling crossbeam-deque v0.6.2 [INFO] [stderr] Compiling crossbeam-deque v0.6.2 (https://github.com/crossbeam-rs/crossbeam#d627067b) [INFO] [stderr] Compiling crossbeam-skiplist v0.0.0 (https://github.com/crossbeam-rs/crossbeam#d627067b) [INFO] [stderr] Compiling syn v0.15.21 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling parking_lot_core v0.3.1 [INFO] [stderr] Compiling aho-corasick v0.6.9 [INFO] [stderr] Compiling tokio-threadpool v0.1.8 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling tokio-codec v0.1.1 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling parking_lot v0.6.4 [INFO] [stderr] Compiling chrono v0.4.6 [INFO] [stderr] Compiling tokio-fs v0.1.4 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling tokio-reactor v0.1.6 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling crossbeam-channel v0.3.2 (https://github.com/crossbeam-rs/crossbeam#d627067b) [INFO] [stderr] Compiling tokio-udp v0.1.2 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling tokio-uds v0.2.3 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling tokio-tcp v0.1.2 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling env_logger v0.5.13 [INFO] [stderr] Compiling crossbeam v0.5.0 (https://github.com/crossbeam-rs/crossbeam#d627067b) [INFO] [stderr] Compiling tokio v0.1.12 (https://github.com/tokio-rs/tokio#09f2ac85) [INFO] [stderr] Compiling pretty_env_logger v0.2.5 [INFO] [stderr] Compiling serde_derive v1.0.80 [INFO] [stderr] Compiling bincode v1.0.1 [INFO] [stderr] Compiling swim v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: field is never used: `indegree` [INFO] [stderr] --> src/digraph.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | indegree: Vec, // indegree[v] = indegree of vertex v [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/digraph.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | pub fn new(v: u32) -> Digraph { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `validate_vertex` [INFO] [stderr] --> src/digraph.rs:41:5 [INFO] [stderr] | [INFO] [stderr] 41 | fn validate_vertex(&self, v: u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add_edge` [INFO] [stderr] --> src/digraph.rs:47:5 [INFO] [stderr] | [INFO] [stderr] 47 | pub fn add_edge(&mut self, v: u32, w: u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `adj` [INFO] [stderr] --> src/digraph.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | pub fn adj(&self, v: u32) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `outdegree` [INFO] [stderr] --> src/digraph.rs:60:5 [INFO] [stderr] | [INFO] [stderr] 60 | pub fn outdegree(&self, v: u32) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `indegree` [INFO] [stderr] --> src/digraph.rs:65:5 [INFO] [stderr] | [INFO] [stderr] 65 | pub fn indegree(&self, v: u32) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reverse` [INFO] [stderr] --> src/digraph.rs:70:5 [INFO] [stderr] | [INFO] [stderr] 70 | pub fn reverse(&self) -> Digraph { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `A` [INFO] [stderr] --> src/protocol/slush.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | const A: f32 = 0.5; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `K` [INFO] [stderr] --> src/protocol/slush.rs:15:1 [INFO] [stderr] | [INFO] [stderr] 15 | const K: usize = 4; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/protocol/slush.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn new(addr: NetAddr) -> Slush { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `set_col` [INFO] [stderr] --> src/protocol/slush.rs:46:5 [INFO] [stderr] | [INFO] [stderr] 46 | pub fn set_col(&mut self, col: Colour) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `send_query` [INFO] [stderr] --> src/protocol/slush.rs:50:5 [INFO] [stderr] | [INFO] [stderr] 50 | pub fn send_query(&self, tx: ColourTx, peer_addr: NetAddr) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `handle_query` [INFO] [stderr] --> src/protocol/slush.rs:66:5 [INFO] [stderr] | [INFO] [stderr] 66 | pub fn handle_query(&mut self, tx: ResponseTx, col: Colour) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/protocol/slush.rs:75:5 [INFO] [stderr] | [INFO] [stderr] 75 | pub fn run(&mut self, tx: &ColourTx, rx: &mut ColourRx, membership: &Membership) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `outcome` [INFO] [stderr] --> src/protocol/slush.rs:112:1 [INFO] [stderr] | [INFO] [stderr] 112 | pub fn outcome(votes: Vec) -> (u32, u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `A` [INFO] [stderr] --> src/protocol/snowflake.rs:12:1 [INFO] [stderr] | [INFO] [stderr] 12 | const A: f32 = 0.5; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `B` [INFO] [stderr] --> src/protocol/snowflake.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | const B: u32 = 11; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `K` [INFO] [stderr] --> src/protocol/snowflake.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | const K: usize = 4; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Snowflake` [INFO] [stderr] --> src/protocol/snowflake.rs:16:1 [INFO] [stderr] | [INFO] [stderr] 16 | pub struct Snowflake { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/protocol/snowflake.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn new(addr: NetAddr) -> Snowflake { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `set_col` [INFO] [stderr] --> src/protocol/snowflake.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | pub fn set_col(&mut self, col: Colour) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `set_cnt` [INFO] [stderr] --> src/protocol/snowflake.rs:52:5 [INFO] [stderr] | [INFO] [stderr] 52 | pub fn set_cnt(&mut self, cnt: u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `send_query` [INFO] [stderr] --> src/protocol/snowflake.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | pub fn send_query(&self, tx: ColourTx, peer_addr: NetAddr) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `handle_query` [INFO] [stderr] --> src/protocol/snowflake.rs:72:5 [INFO] [stderr] | [INFO] [stderr] 72 | pub fn handle_query(&mut self, tx: ResponseTx, col: Colour) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/protocol/snowflake.rs:81:5 [INFO] [stderr] | [INFO] [stderr] 81 | pub fn run(&mut self, tx: &ColourTx, rx: &mut ColourRx, membership: &Membership) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `outcome` [INFO] [stderr] --> src/protocol/snowflake.rs:139:1 [INFO] [stderr] | [INFO] [stderr] 139 | pub fn outcome(votes: Vec) -> (u32, u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/digraph.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | write!(f, "{:?} vertices, {:?} edges\n", self.v(), self.e()); [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/digraph.rs:14:13 [INFO] [stderr] | [INFO] [stderr] 14 | write!(f, "{:?}: ", v); [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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/digraph.rs:16:17 [INFO] [stderr] | [INFO] [stderr] 16 | write!(f, "{:?} ", w); [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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/digraph.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | write!(f, "\n"); [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: comparison is useless due to type limits [INFO] [stderr] --> src/digraph.rs:42:12 [INFO] [stderr] | [INFO] [stderr] 42 | if v < 0 || v >= self.v { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 03s [INFO] running `"docker" "inspect" "dc10aa8460cf13c3f54d1d6f2e1f9dcf96788df364e6381b5657c629908a1e64"` [INFO] running `"docker" "rm" "-f" "dc10aa8460cf13c3f54d1d6f2e1f9dcf96788df364e6381b5657c629908a1e64"` [INFO] [stdout] dc10aa8460cf13c3f54d1d6f2e1f9dcf96788df364e6381b5657c629908a1e64 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/et4te/swim:/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-2019-08-13" "test" "--frozen" "--no-run"` [INFO] [stdout] d94a66036581c4c05b9da028784b44cec6044ab30bcfbfde62f09c8d861c1543 [INFO] running `"docker" "start" "-a" "d94a66036581c4c05b9da028784b44cec6044ab30bcfbfde62f09c8d861c1543"` [INFO] [stderr] Compiling swim v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: method is never used: `adj` [INFO] [stderr] --> src/digraph.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | pub fn adj(&self, v: u32) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `outdegree` [INFO] [stderr] --> src/digraph.rs:60:5 [INFO] [stderr] | [INFO] [stderr] 60 | pub fn outdegree(&self, v: u32) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `indegree` [INFO] [stderr] --> src/digraph.rs:65:5 [INFO] [stderr] | [INFO] [stderr] 65 | pub fn indegree(&self, v: u32) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reverse` [INFO] [stderr] --> src/digraph.rs:70:5 [INFO] [stderr] | [INFO] [stderr] 70 | pub fn reverse(&self) -> Digraph { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `A` [INFO] [stderr] --> src/protocol/slush.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | const A: f32 = 0.5; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `K` [INFO] [stderr] --> src/protocol/slush.rs:15:1 [INFO] [stderr] | [INFO] [stderr] 15 | const K: usize = 4; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/protocol/slush.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn new(addr: NetAddr) -> Slush { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `set_col` [INFO] [stderr] --> src/protocol/slush.rs:46:5 [INFO] [stderr] | [INFO] [stderr] 46 | pub fn set_col(&mut self, col: Colour) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `send_query` [INFO] [stderr] --> src/protocol/slush.rs:50:5 [INFO] [stderr] | [INFO] [stderr] 50 | pub fn send_query(&self, tx: ColourTx, peer_addr: NetAddr) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `handle_query` [INFO] [stderr] --> src/protocol/slush.rs:66:5 [INFO] [stderr] | [INFO] [stderr] 66 | pub fn handle_query(&mut self, tx: ResponseTx, col: Colour) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/protocol/slush.rs:75:5 [INFO] [stderr] | [INFO] [stderr] 75 | pub fn run(&mut self, tx: &ColourTx, rx: &mut ColourRx, membership: &Membership) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `outcome` [INFO] [stderr] --> src/protocol/slush.rs:112:1 [INFO] [stderr] | [INFO] [stderr] 112 | pub fn outcome(votes: Vec) -> (u32, u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `A` [INFO] [stderr] --> src/protocol/snowflake.rs:12:1 [INFO] [stderr] | [INFO] [stderr] 12 | const A: f32 = 0.5; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `B` [INFO] [stderr] --> src/protocol/snowflake.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | const B: u32 = 11; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `K` [INFO] [stderr] --> src/protocol/snowflake.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | const K: usize = 4; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Snowflake` [INFO] [stderr] --> src/protocol/snowflake.rs:16:1 [INFO] [stderr] | [INFO] [stderr] 16 | pub struct Snowflake { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/protocol/snowflake.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn new(addr: NetAddr) -> Snowflake { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `set_col` [INFO] [stderr] --> src/protocol/snowflake.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | pub fn set_col(&mut self, col: Colour) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `set_cnt` [INFO] [stderr] --> src/protocol/snowflake.rs:52:5 [INFO] [stderr] | [INFO] [stderr] 52 | pub fn set_cnt(&mut self, cnt: u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `send_query` [INFO] [stderr] --> src/protocol/snowflake.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | pub fn send_query(&self, tx: ColourTx, peer_addr: NetAddr) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `handle_query` [INFO] [stderr] --> src/protocol/snowflake.rs:72:5 [INFO] [stderr] | [INFO] [stderr] 72 | pub fn handle_query(&mut self, tx: ResponseTx, col: Colour) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `run` [INFO] [stderr] --> src/protocol/snowflake.rs:81:5 [INFO] [stderr] | [INFO] [stderr] 81 | pub fn run(&mut self, tx: &ColourTx, rx: &mut ColourRx, membership: &Membership) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `outcome` [INFO] [stderr] --> src/protocol/snowflake.rs:139:1 [INFO] [stderr] | [INFO] [stderr] 139 | pub fn outcome(votes: Vec) -> (u32, u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/digraph.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | write!(f, "{:?} vertices, {:?} edges\n", self.v(), self.e()); [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/digraph.rs:14:13 [INFO] [stderr] | [INFO] [stderr] 14 | write!(f, "{:?}: ", v); [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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/digraph.rs:16:17 [INFO] [stderr] | [INFO] [stderr] 16 | write!(f, "{:?} ", w); [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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/digraph.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | write!(f, "\n"); [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: comparison is useless due to type limits [INFO] [stderr] --> src/digraph.rs:42:12 [INFO] [stderr] | [INFO] [stderr] 42 | if v < 0 || v >= self.v { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.70s [INFO] running `"docker" "inspect" "d94a66036581c4c05b9da028784b44cec6044ab30bcfbfde62f09c8d861c1543"` [INFO] running `"docker" "rm" "-f" "d94a66036581c4c05b9da028784b44cec6044ab30bcfbfde62f09c8d861c1543"` [INFO] [stdout] d94a66036581c4c05b9da028784b44cec6044ab30bcfbfde62f09c8d861c1543 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/et4te/swim:/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-2019-08-13" "test" "--frozen"` [INFO] [stdout] a6534e894122667640199dda2f63428022d8451bdf94b5d55f75dec3926259f4 [INFO] running `"docker" "start" "-a" "a6534e894122667640199dda2f63428022d8451bdf94b5d55f75dec3926259f4"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.20s [INFO] [stderr] Running /opt/crater/target/debug/deps/swim-4099589dd6b296a1 [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test digraph::tests::test_one ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- digraph::tests::test_one stdout ---- [INFO] [stdout] thread 'digraph::tests::test_one' panicked at 'vertex is not between 0 and v - 1', src/digraph.rs:43:13 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x560fe56a2bfb - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x560fe56a2bfb - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x560fe56a2bfb - std::sys_common::backtrace::_print::h24f527b44b6cfc06 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x560fe56a2bfb - std::sys_common::backtrace::print::h712608e4347fd64a [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x560fe56a2bfb - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x560fe56a286c - std::panicking::default_hook::hb29963fb4747e0dd [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 6: 0x560fe56a336d - std::panicking::rust_panic_with_hook::hd1236c3083de823a [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x560fe5696115 - std::panicking::begin_panic::h36bd4059784faa00 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:411 [INFO] [stdout] 8: 0x560fe5650c2a - swim::digraph::Digraph::validate_vertex::h86f7f7f527699f14 [INFO] [stdout] at src/digraph.rs:43 [INFO] [stdout] 9: 0x560fe5650c5d - swim::digraph::Digraph::add_edge::hddd34c79bb7abbe1 [INFO] [stdout] at src/digraph.rs:49 [INFO] [stdout] 10: 0x560fe564fe18 - swim::digraph::tests::test_one::hc8ce12b8e99088be [INFO] [stdout] at src/digraph.rs:109 [INFO] [stdout] 11: 0x560fe564fdca - swim::digraph::tests::test_one::{{closure}}::h294d8cdffb848b39 [INFO] [stdout] at src/digraph.rs:107 [INFO] [stdout] 12: 0x560fe564fa9e - core::ops::function::FnOnce::call_once::h1041f4b3f18b33c5 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libcore/ops/function.rs:235 [INFO] [stdout] 13: 0x560fe565cf1f - as core::ops::function::FnOnce>::call_once::h355e655b04400826 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787 [INFO] [stdout] 14: 0x560fe56a5c4a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 15: 0x560fe567750e - std::panicking::try::h5890cbed5d1d8df0 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:275 [INFO] [stdout] 16: 0x560fe567750e - std::panic::catch_unwind::hf93cc71fc6442fdf [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:394 [INFO] [stdout] 17: 0x560fe567750e - test::run_test::run_test_inner::{{closure}}::ha399a28a3066698d [INFO] [stdout] at src/libtest/lib.rs:1408 [INFO] [stdout] 18: 0x560fe5652945 - std::sys_common::backtrace::__rust_begin_short_backtrace::h089859c639046955 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 19: 0x560fe5656b55 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h8d489100862c3e01 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/thread/mod.rs:470 [INFO] [stdout] 20: 0x560fe5656b55 - as core::ops::function::FnOnce<()>>::call_once::h5746c9e2571824d0 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:315 [INFO] [stdout] 21: 0x560fe5656b55 - std::panicking::try::do_call::hfd443b32b22f72a6 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:296 [INFO] [stdout] 22: 0x560fe56a5c4a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 23: 0x560fe5657152 - std::panicking::try::h332f368ed7d9b7d1 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:275 [INFO] [stdout] 24: 0x560fe5657152 - std::panic::catch_unwind::h316b7be8b4198222 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:394 [INFO] [stdout] 25: 0x560fe5657152 - std::thread::Builder::spawn_unchecked::{{closure}}::h916aed08bc6e5276 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/thread/mod.rs:469 [INFO] [stdout] 26: 0x560fe5657152 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h9091646be5c55ea6 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libcore/ops/function.rs:235 [INFO] [stdout] 27: 0x560fe5698a9f - as core::ops::function::FnOnce>::call_once::hb5396a93648ae250 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787 [INFO] [stdout] 28: 0x560fe56a5380 - as core::ops::function::FnOnce>::call_once::h92593001847bb63e [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787 [INFO] [stdout] 29: 0x560fe56a5380 - std::sys_common::thread::start_thread::h569f3ccc0d5dcd83 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 30: 0x560fe56a5380 - std::sys::unix::thread::Thread::new::thread_start::hd9ff46fad032d886 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 31: 0x7f54f1b034a4 - start_thread [INFO] [stdout] 32: 0x7f54f162ed0f - __clone [INFO] [stdout] 33: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] digraph::tests::test_one [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--bin swim' [INFO] running `"docker" "inspect" "a6534e894122667640199dda2f63428022d8451bdf94b5d55f75dec3926259f4"` [INFO] running `"docker" "rm" "-f" "a6534e894122667640199dda2f63428022d8451bdf94b5d55f75dec3926259f4"` [INFO] [stdout] a6534e894122667640199dda2f63428022d8451bdf94b5d55f75dec3926259f4