[INFO] fetching crate rand-mersenne-twister 0.1.0...
[INFO] testing rand-mersenne-twister-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rand-mersenne-twister 0.1.0 into /workspace/builds/worker-2-tc2/source
[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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rand-mersenne-twister 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 16 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f99596455d0abb0bd56464f61edcd18a5b2d67fb66e13924e3deaddc892b39c4
[INFO] running `Command { std: "docker" "start" "-a" "f99596455d0abb0bd56464f61edcd18a5b2d67fb66e13924e3deaddc892b39c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f99596455d0abb0bd56464f61edcd18a5b2d67fb66e13924e3deaddc892b39c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f99596455d0abb0bd56464f61edcd18a5b2d67fb66e13924e3deaddc892b39c4", kill_on_drop: false }`
[INFO] [stdout] f99596455d0abb0bd56464f61edcd18a5b2d67fb66e13924e3deaddc892b39c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 515d5023e391220146f5031cff1e4782e0372f4126fb8fad3da352579eaac7ee
[INFO] running `Command { std: "docker" "start" "-a" "515d5023e391220146f5031cff1e4782e0372f4126fb8fad3da352579eaac7ee", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling rand-mersenne-twister v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0407]: method `next_u32` is not a member of trait `Rng`
[INFO] [stdout]    --> src/mt32.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | /     fn next_u32(&mut self) -> u32 {
[INFO] [stdout] 147 | |         self.next()
[INFO] [stdout] 148 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `reseed` is not a member of trait `SeedableRng`
[INFO] [stdout]    --> src/mt32.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 | /     fn reseed(&mut self, seed: u32) {
[INFO] [stdout] 153 | |         self.reset(seed);
[INFO] [stdout] 154 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `SeedableRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `reseed` is not a member of trait `SeedableRng`
[INFO] [stdout]    --> src/mt32.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 | /     fn reseed(&mut self, seed: &'a [u32]) {
[INFO] [stdout] 163 | |         self.reset_array(seed);
[INFO] [stdout] 164 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `SeedableRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `next_u32` is not a member of trait `Rng`
[INFO] [stdout]    --> src/mt64.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | /     fn next_u32(&mut self) -> u32 {
[INFO] [stdout] 147 | |         self.next() as u32
[INFO] [stdout] 148 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `next_u64` is not a member of trait `Rng`
[INFO] [stdout]    --> src/mt64.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 150 | /     fn next_u64(&mut self) -> u64 {
[INFO] [stdout] 151 | |         self.next()
[INFO] [stdout] 152 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `reseed` is not a member of trait `SeedableRng`
[INFO] [stdout]    --> src/mt64.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     fn reseed(&mut self, seed: u64) {
[INFO] [stdout] 157 | |         self.reset(seed);
[INFO] [stdout] 158 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `SeedableRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `reseed` is not a member of trait `SeedableRng`
[INFO] [stdout]    --> src/mt64.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 | /     fn reseed(&mut self, seed: &'a [u64]) {
[INFO] [stdout] 167 | |         self.reset_array(seed);
[INFO] [stdout] 168 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `SeedableRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(core)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/mt32.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |         for index in (1..N) {
[INFO] [stdout]    |                      ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -         for index in (1..N) {
[INFO] [stdout] 55 +         for index in 1..N {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/mt32.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |         for _ in (0..size) {
[INFO] [stdout]    |                  ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -         for _ in (0..size) {
[INFO] [stdout] 71 +         for _ in 0..size {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/mt32.rs:88:18
[INFO] [stdout]    |
[INFO] [stdout] 88 |         for _ in (0..N - 1) {
[INFO] [stdout]    |                  ^        ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 88 -         for _ in (0..N - 1) {
[INFO] [stdout] 88 +         for _ in 0..N - 1 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/mt64.rs:56:22
[INFO] [stdout]    |
[INFO] [stdout] 56 |         for index in (1..N) {
[INFO] [stdout]    |                      ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 56 -         for index in (1..N) {
[INFO] [stdout] 56 +         for index in 1..N {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/mt64.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |         for _ in (0..size) {
[INFO] [stdout]    |                  ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -         for _ in (0..size) {
[INFO] [stdout] 71 +         for _ in 0..size {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/mt64.rs:88:18
[INFO] [stdout]    |
[INFO] [stdout] 88 |         for _ in (0..N - 1) {
[INFO] [stdout]    |                  ^        ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 88 -         for _ in (0..N - 1) {
[INFO] [stdout] 88 +         for _ in 0..N - 1 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(core)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `MTRng32: Clone` is not satisfied
[INFO] [stdout]    --> src/mt32.rs:143:15
[INFO] [stdout]     |
[INFO] [stdout] 143 | impl Copy for MTRng32 {}
[INFO] [stdout]     |               ^^^^^^^ the trait `Clone` is not implemented for `MTRng32`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Copy`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/marker.rs:465:1
[INFO] [stdout] help: consider annotating `MTRng32` with `#[derive(Clone)]`
[INFO] [stdout]     |
[INFO] [stdout]  27 + #[derive(Clone)]
[INFO] [stdout]  28 | pub struct MTRng32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `MTRng32: RngCore` is not satisfied
[INFO] [stdout]    --> src/mt32.rs:145:14
[INFO] [stdout]     |
[INFO] [stdout] 145 | impl Rng for MTRng32 {
[INFO] [stdout]     |              ^^^^^^^ unsatisfied trait bound
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `DerefMut` is not implemented for `MTRng32`
[INFO] [stdout]    --> src/mt32.rs:27:1
[INFO] [stdout]     |
[INFO] [stdout]  27 | pub struct MTRng32 {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: the following other types implement trait `RngCore`:
[INFO] [stdout]               BlockRng64<R>
[INFO] [stdout]               BlockRng<R>
[INFO] [stdout]               ReseedingRng<R, Rsdr>
[INFO] [stdout]               SmallRng
[INFO] [stdout]               StdRng
[INFO] [stdout]               StepRng
[INFO] [stdout]               ThreadRng
[INFO] [stdout]               UnwrapErr<R>
[INFO] [stdout]             and 5 others
[INFO] [stdout]     = note: required for `MTRng32` to implement `RngCore`
[INFO] [stdout] note: required by a bound in `Rng`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand-0.9.2/src/rng.rs:58:16
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Rng: RngCore {
[INFO] [stdout]     |                ^^^^^^^ required by this bound in `Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
[INFO] [stdout]    --> src/mt32.rs:151:6
[INFO] [stdout]     |
[INFO] [stdout] 151 | impl SeedableRng<u32> for MTRng32 {
[INFO] [stdout]     |      ^^^^^^^^^^^ expected 0 generic arguments
[INFO] [stdout]     |
[INFO] [stdout] note: trait defined here, with 0 generic parameters
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.3/src/lib.rs:371:11
[INFO] [stdout]     |
[INFO] [stdout] 371 | pub trait SeedableRng: Sized {
[INFO] [stdout]     |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
[INFO] [stdout]    --> src/mt32.rs:161:10
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl<'a> SeedableRng<&'a [u32]> for MTRng32 {
[INFO] [stdout]     |          ^^^^^^^^^^^ expected 0 generic arguments
[INFO] [stdout]     |
[INFO] [stdout] note: trait defined here, with 0 generic parameters
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.3/src/lib.rs:371:11
[INFO] [stdout]     |
[INFO] [stdout] 371 | pub trait SeedableRng: Sized {
[INFO] [stdout]     |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0119]: conflicting implementations of trait `SeedableRng` for type `MTRng32`
[INFO] [stdout]    --> src/mt32.rs:161:1
[INFO] [stdout]     |
[INFO] [stdout] 151 | impl SeedableRng<u32> for MTRng32 {
[INFO] [stdout]     | --------------------------------- first implementation here
[INFO] [stdout] ...
[INFO] [stdout] 161 | impl<'a> SeedableRng<&'a [u32]> for MTRng32 {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `MTRng32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
[INFO] [stdout]    --> src/mt64.rs:155:6
[INFO] [stdout]     |
[INFO] [stdout] 155 | impl SeedableRng<u64> for MTRng64 {
[INFO] [stdout]     |      ^^^^^^^^^^^ expected 0 generic arguments
[INFO] [stdout]     |
[INFO] [stdout] note: trait defined here, with 0 generic parameters
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.3/src/lib.rs:371:11
[INFO] [stdout]     |
[INFO] [stdout] 371 | pub trait SeedableRng: Sized {
[INFO] [stdout]     |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
[INFO] [stdout]    --> src/mt64.rs:165:10
[INFO] [stdout]     |
[INFO] [stdout] 165 | impl<'a> SeedableRng<&'a [u64]> for MTRng64 {
[INFO] [stdout]     |          ^^^^^^^^^^^ expected 0 generic arguments
[INFO] [stdout]     |
[INFO] [stdout] note: trait defined here, with 0 generic parameters
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.9.3/src/lib.rs:371:11
[INFO] [stdout]     |
[INFO] [stdout] 371 | pub trait SeedableRng: Sized {
[INFO] [stdout]     |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0119]: conflicting implementations of trait `SeedableRng` for type `MTRng64`
[INFO] [stdout]    --> src/mt64.rs:165:1
[INFO] [stdout]     |
[INFO] [stdout] 155 | impl SeedableRng<u64> for MTRng64 {
[INFO] [stdout]     | --------------------------------- first implementation here
[INFO] [stdout] ...
[INFO] [stdout] 165 | impl<'a> SeedableRng<&'a [u64]> for MTRng64 {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `MTRng64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `MTRng64: Clone` is not satisfied
[INFO] [stdout]    --> src/mt64.rs:143:15
[INFO] [stdout]     |
[INFO] [stdout] 143 | impl Copy for MTRng64 {}
[INFO] [stdout]     |               ^^^^^^^ the trait `Clone` is not implemented for `MTRng64`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Copy`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/marker.rs:465:1
[INFO] [stdout] help: consider annotating `MTRng64` with `#[derive(Clone)]`
[INFO] [stdout]     |
[INFO] [stdout]  28 + #[derive(Clone)]
[INFO] [stdout]  29 | pub struct MTRng64 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `MTRng64: RngCore` is not satisfied
[INFO] [stdout]    --> src/mt64.rs:145:14
[INFO] [stdout]     |
[INFO] [stdout] 145 | impl Rng for MTRng64 {
[INFO] [stdout]     |              ^^^^^^^ unsatisfied trait bound
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `DerefMut` is not implemented for `MTRng64`
[INFO] [stdout]    --> src/mt64.rs:28:1
[INFO] [stdout]     |
[INFO] [stdout]  28 | pub struct MTRng64 {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: the following other types implement trait `RngCore`:
[INFO] [stdout]               BlockRng64<R>
[INFO] [stdout]               BlockRng<R>
[INFO] [stdout]               ReseedingRng<R, Rsdr>
[INFO] [stdout]               SmallRng
[INFO] [stdout]               StdRng
[INFO] [stdout]               StepRng
[INFO] [stdout]               ThreadRng
[INFO] [stdout]               UnwrapErr<R>
[INFO] [stdout]             and 5 others
[INFO] [stdout]     = note: required for `MTRng64` to implement `RngCore`
[INFO] [stdout] note: required by a bound in `Rng`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand-0.9.2/src/rng.rs:58:16
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Rng: RngCore {
[INFO] [stdout]     |                ^^^^^^^ required by this bound in `Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0119, E0277, E0407, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rand-mersenne-twister` (lib) due to 18 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "515d5023e391220146f5031cff1e4782e0372f4126fb8fad3da352579eaac7ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "515d5023e391220146f5031cff1e4782e0372f4126fb8fad3da352579eaac7ee", kill_on_drop: false }`
[INFO] [stdout] 515d5023e391220146f5031cff1e4782e0372f4126fb8fad3da352579eaac7ee
