[INFO] crate rand-mersenne-twister 0.1.0 is already in cache
[INFO] testing rand-mersenne-twister-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate rand-mersenne-twister 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rand-mersenne-twister 0.1.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rand-mersenne-twister 0.1.0
[INFO] finished tweaking crates.io crate rand-mersenne-twister 0.1.0
[INFO] tweaked toml for crates.io crate rand-mersenne-twister 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fac2ab6319abc7fd6dc1e5a11ec16e1d8b4ce857b2c531d152e6007cfbaf887e
[INFO] running `"docker" "start" "-a" "fac2ab6319abc7fd6dc1e5a11ec16e1d8b4ce857b2c531d152e6007cfbaf887e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rand-mersenne-twister v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0407]: method `next_u32` is not a member of trait `Rng`
[INFO] [stderr]    --> src/mt32.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 | /     fn next_u32(&mut self) -> u32 {
[INFO] [stderr] 147 | |         self.next()
[INFO] [stderr] 148 | |     }
[INFO] [stderr]     | |_____^ not a member of trait `Rng`
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `reseed` is not a member of trait `SeedableRng`
[INFO] [stderr]    --> src/mt32.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 | /     fn reseed(&mut self, seed: u32) {
[INFO] [stderr] 153 | |         self.reset(seed);
[INFO] [stderr] 154 | |     }
[INFO] [stderr]     | |_____^ not a member of trait `SeedableRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `reseed` is not a member of trait `SeedableRng`
[INFO] [stderr]    --> src/mt32.rs:162:5
[INFO] [stderr]     |
[INFO] [stderr] 162 | /     fn reseed(&mut self, seed: &'a [u32]) {
[INFO] [stderr] 163 | |         self.reset_array(seed);
[INFO] [stderr] 164 | |     }
[INFO] [stderr]     | |_____^ not a member of trait `SeedableRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `next_u32` is not a member of trait `Rng`
[INFO] [stderr]    --> src/mt64.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 | /     fn next_u32(&mut self) -> u32 {
[INFO] [stderr] 147 | |         self.next() as u32
[INFO] [stderr] 148 | |     }
[INFO] [stderr]     | |_____^ not a member of trait `Rng`
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `next_u64` is not a member of trait `Rng`
[INFO] [stderr]    --> src/mt64.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 150 | /     fn next_u64(&mut self) -> u64 {
[INFO] [stderr] 151 | |         self.next()
[INFO] [stderr] 152 | |     }
[INFO] [stderr]     | |_____^ not a member of trait `Rng`
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `reseed` is not a member of trait `SeedableRng`
[INFO] [stderr]    --> src/mt64.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 | /     fn reseed(&mut self, seed: u64) {
[INFO] [stderr] 157 | |         self.reset(seed);
[INFO] [stderr] 158 | |     }
[INFO] [stderr]     | |_____^ not a member of trait `SeedableRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0407]: method `reseed` is not a member of trait `SeedableRng`
[INFO] [stderr]    --> src/mt64.rs:166:5
[INFO] [stderr]     |
[INFO] [stderr] 166 | /     fn reseed(&mut self, seed: &'a [u64]) {
[INFO] [stderr] 167 | |         self.reset_array(seed);
[INFO] [stderr] 168 | |     }
[INFO] [stderr]     | |_____^ not a member of trait `SeedableRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(core)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/mt32.rs:55:22
[INFO] [stderr]    |
[INFO] [stderr] 55 |         for index in (1..N) {
[INFO] [stderr]    |                      ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/mt32.rs:71:18
[INFO] [stderr]    |
[INFO] [stderr] 71 |         for _ in (0..size) {
[INFO] [stderr]    |                  ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/mt32.rs:88:18
[INFO] [stderr]    |
[INFO] [stderr] 88 |         for _ in (0..N - 1) {
[INFO] [stderr]    |                  ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/mt64.rs:56:22
[INFO] [stderr]    |
[INFO] [stderr] 56 |         for index in (1..N) {
[INFO] [stderr]    |                      ^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/mt64.rs:71:18
[INFO] [stderr]    |
[INFO] [stderr] 71 |         for _ in (0..size) {
[INFO] [stderr]    |                  ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/mt64.rs:88:18
[INFO] [stderr]    |
[INFO] [stderr] 88 |         for _ in (0..N - 1) {
[INFO] [stderr]    |                  ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 0, found 1
[INFO] [stderr]    --> src/mt32.rs:151:18
[INFO] [stderr]     |
[INFO] [stderr] 151 | impl SeedableRng<u32> for MTRng32 {
[INFO] [stderr]     |                  ^^^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 0, found 1
[INFO] [stderr]    --> src/mt32.rs:161:22
[INFO] [stderr]     |
[INFO] [stderr] 161 | impl<'a> SeedableRng<&'a [u32]> for MTRng32 {
[INFO] [stderr]     |                      ^^^^^^^^^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 0, found 1
[INFO] [stderr]    --> src/mt64.rs:155:18
[INFO] [stderr]     |
[INFO] [stderr] 155 | impl SeedableRng<u64> for MTRng64 {
[INFO] [stderr]     |                  ^^^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 0, found 1
[INFO] [stderr]    --> src/mt64.rs:165:22
[INFO] [stderr]     |
[INFO] [stderr] 165 | impl<'a> SeedableRng<&'a [u64]> for MTRng64 {
[INFO] [stderr]     |                      ^^^^^^^^^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error[E0119]: conflicting implementations of trait `rand::SeedableRng` for type `mt32::MTRng32`:
[INFO] [stderr]    --> src/mt32.rs:161:1
[INFO] [stderr]     |
[INFO] [stderr] 151 | impl SeedableRng<u32> for MTRng32 {
[INFO] [stderr]     | --------------------------------- first implementation here
[INFO] [stderr] ...
[INFO] [stderr] 161 | impl<'a> SeedableRng<&'a [u32]> for MTRng32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `mt32::MTRng32`
[INFO] [stderr] 
[INFO] [stderr] error[E0119]: conflicting implementations of trait `rand::SeedableRng` for type `mt64::MTRng64`:
[INFO] [stderr]    --> src/mt64.rs:165:1
[INFO] [stderr]     |
[INFO] [stderr] 155 | impl SeedableRng<u64> for MTRng64 {
[INFO] [stderr]     | --------------------------------- first implementation here
[INFO] [stderr] ...
[INFO] [stderr] 165 | impl<'a> SeedableRng<&'a [u64]> for MTRng64 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `mt64::MTRng64`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 14 previous errors; 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0107, E0119, E0407, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0107`.
[INFO] [stderr] error: could not compile `rand-mersenne-twister`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "fac2ab6319abc7fd6dc1e5a11ec16e1d8b4ce857b2c531d152e6007cfbaf887e"`
[INFO] running `"docker" "rm" "-f" "fac2ab6319abc7fd6dc1e5a11ec16e1d8b4ce857b2c531d152e6007cfbaf887e"`
[INFO] [stdout] fac2ab6319abc7fd6dc1e5a11ec16e1d8b4ce857b2c531d152e6007cfbaf887e