[INFO] cloning repository https://github.com/MoonL1ght/Rust-Markov-Chain [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MoonL1ght/Rust-Markov-Chain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMoonL1ght%2FRust-Markov-Chain", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMoonL1ght%2FRust-Markov-Chain'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 861e76396c56712e12bf2265597ecccc678b64bf [INFO] checking MoonL1ght/Rust-Markov-Chain against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMoonL1ght%2FRust-Markov-Chain" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/MoonL1ght/Rust-Markov-Chain on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/MoonL1ght/Rust-Markov-Chain [INFO] finished tweaking git repo https://github.com/MoonL1ght/Rust-Markov-Chain [INFO] tweaked toml for git repo https://github.com/MoonL1ght/Rust-Markov-Chain written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/MoonL1ght/Rust-Markov-Chain already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0ef1bd438454106dc00d4a98c42eea8bc9f5bc968ed536adc3e0c581a409cba2 [INFO] running `Command { std: "docker" "start" "-a" "0ef1bd438454106dc00d4a98c42eea8bc9f5bc968ed536adc3e0c581a409cba2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0ef1bd438454106dc00d4a98c42eea8bc9f5bc968ed536adc3e0c581a409cba2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ef1bd438454106dc00d4a98c42eea8bc9f5bc968ed536adc3e0c581a409cba2", kill_on_drop: false }` [INFO] [stdout] 0ef1bd438454106dc00d4a98c42eea8bc9f5bc968ed536adc3e0c581a409cba2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 894c9dd0cfaf280bd6ee9c4d61c6e2a4eee9bc6a9721de657a24ae3c6e1fb63a [INFO] running `Command { std: "docker" "start" "-a" "894c9dd0cfaf280bd6ee9c4d61c6e2a4eee9bc6a9721de657a24ae3c6e1fb63a", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.21 (/opt/rustwide/workdir/libs/libc) [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/mod.rs:313:36 [INFO] [stdout] | [INFO] [stdout] 313 | pub const LC_CTYPE_MASK: ::c_int = (1 << LC_CTYPE); [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/mod.rs:314:38 [INFO] [stdout] | [INFO] [stdout] 314 | pub const LC_NUMERIC_MASK: ::c_int = (1 << LC_NUMERIC); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/mod.rs:315:35 [INFO] [stdout] | [INFO] [stdout] 315 | pub const LC_TIME_MASK: ::c_int = (1 << LC_TIME); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/mod.rs:316:38 [INFO] [stdout] | [INFO] [stdout] 316 | pub const LC_COLLATE_MASK: ::c_int = (1 << LC_COLLATE); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/mod.rs:317:39 [INFO] [stdout] | [INFO] [stdout] 317 | pub const LC_MONETARY_MASK: ::c_int = (1 << LC_MONETARY); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/mod.rs:318:39 [INFO] [stdout] | [INFO] [stdout] 318 | pub const LC_MESSAGES_MASK: ::c_int = (1 << LC_MESSAGES); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> libs/libc/src/macros.rs:58:21 [INFO] [stdout] | [INFO] [stdout] 58 | $($body);* [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> libs/libc/src/macros.rs:58:21 [INFO] [stdout] | [INFO] [stdout] 58 | $($body);* [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/linux/other/mod.rs:213:36 [INFO] [stdout] | [INFO] [stdout] 213 | pub const LC_PAPER_MASK: ::c_int = (1 << LC_PAPER); [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/linux/other/mod.rs:214:35 [INFO] [stdout] | [INFO] [stdout] 214 | pub const LC_NAME_MASK: ::c_int = (1 << LC_NAME); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/linux/other/mod.rs:215:38 [INFO] [stdout] | [INFO] [stdout] 215 | pub const LC_ADDRESS_MASK: ::c_int = (1 << LC_ADDRESS); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/linux/other/mod.rs:216:40 [INFO] [stdout] | [INFO] [stdout] 216 | pub const LC_TELEPHONE_MASK: ::c_int = (1 << LC_TELEPHONE); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/linux/other/mod.rs:217:42 [INFO] [stdout] | [INFO] [stdout] 217 | pub const LC_MEASUREMENT_MASK: ::c_int = (1 << LC_MEASUREMENT); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> libs/libc/src/unix/notbsd/linux/other/mod.rs:218:45 [INFO] [stdout] | [INFO] [stdout] 218 | pub const LC_IDENTIFICATION_MASK: ::c_int = (1 << LC_IDENTIFICATION); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand v0.3.15 (/opt/rustwide/workdir/libs/rand) [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> libs/rand/src/distributions/gamma.rs:107:17 [INFO] [stdout] | [INFO] [stdout] 107 | 0.0 ... 1.0 => Small(GammaSmallShape::new_raw(shape, scale)), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> libs/rand/src/distributions/mod.rs:51:34 [INFO] [stdout] | [INFO] [stdout] 51 | fn ind_sample(&self, &mut R) -> Support; [INFO] [stdout] | ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut R` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> libs/rand/src/os.rs:56:32 [INFO] [stdout] | [INFO] [stdout] 56 | fn next_u32(mut fill_buf: &mut FnMut(&mut [u8])) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut [u8])` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> libs/rand/src/os.rs:62:32 [INFO] [stdout] | [INFO] [stdout] 62 | fn next_u64(mut fill_buf: &mut FnMut(&mut [u8])) -> u64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut [u8])` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> libs/rand/src/os.rs:188:26 [INFO] [stdout] | [INFO] [stdout] 188 | let reader = try!(File::open("/dev/urandom")); [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] --> libs/rand/src/read.rs:70:15 [INFO] [stdout] | [INFO] [stdout] 70 | match try!(r.read(buf)) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> libs/rand/src/read.rs:68:17 [INFO] [stdout] | [INFO] [stdout] 68 | fn fill(r: &mut Read, mut buf: &mut [u8]) -> io::Result<()> { [INFO] [stdout] | ^^^^ help: use `dyn`: `dyn Read` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition. [INFO] [stdout] --> libs/rand/src/lib.rs:668:26 [INFO] [stdout] | [INFO] [stdout] 668 | fn reseed(&mut self, Seed); [INFO] [stdout] | ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Seed` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred [INFO] [stdout] --> libs/rand/src/os.rs:144:45 [INFO] [stdout] | [INFO] [stdout] 144 | use std::sync::atomic::{AtomicBool, ATOMIC_BOOL_INIT, Ordering}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> libs/rand/src/os.rs:145:31 [INFO] [stdout] | [INFO] [stdout] 145 | use std::sync::{Once, ONCE_INIT}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> libs/rand/src/os.rs:147:32 [INFO] [stdout] | [INFO] [stdout] 147 | static CHECKER: Once = ONCE_INIT; [INFO] [stdout] | ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_BOOL_INIT`: the `new` function is now preferred [INFO] [stdout] --> libs/rand/src/os.rs:148:40 [INFO] [stdout] | [INFO] [stdout] 148 | static AVAILABLE: AtomicBool = ATOMIC_BOOL_INIT; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicBool::new(false)` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: floating-point types cannot be used in patterns [INFO] [stdout] --> libs/rand/src/distributions/gamma.rs:106:13 [INFO] [stdout] | [INFO] [stdout] 106 | 1.0 => One(Exp::new(1.0 / scale)), [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #41620 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: floating-point types cannot be used in patterns [INFO] [stdout] --> libs/rand/src/distributions/gamma.rs:107:13 [INFO] [stdout] | [INFO] [stdout] 107 | 0.0 ... 1.0 => Small(GammaSmallShape::new_raw(shape, scale)), [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #41620 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: floating-point types cannot be used in patterns [INFO] [stdout] --> libs/rand/src/distributions/gamma.rs:107:21 [INFO] [stdout] | [INFO] [stdout] 107 | 0.0 ... 1.0 => Small(GammaSmallShape::new_raw(shape, scale)), [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #41620 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> libs/rand/src/os.rs:56:13 [INFO] [stdout] | [INFO] [stdout] 56 | fn next_u32(mut fill_buf: &mut FnMut(&mut [u8])) -> u32 { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> libs/rand/src/os.rs:62:13 [INFO] [stdout] | [INFO] [stdout] 62 | fn next_u64(mut fill_buf: &mut FnMut(&mut [u8])) -> u64 { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking markov_chain v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:127:25 [INFO] [stdout] | [INFO] [stdout] 127 | panic!("{:?}", error.description()); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:127:25 [INFO] [stdout] | [INFO] [stdout] 127 | panic!("{:?}", error.description()); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.91s [INFO] running `Command { std: "docker" "inspect" "894c9dd0cfaf280bd6ee9c4d61c6e2a4eee9bc6a9721de657a24ae3c6e1fb63a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "894c9dd0cfaf280bd6ee9c4d61c6e2a4eee9bc6a9721de657a24ae3c6e1fb63a", kill_on_drop: false }` [INFO] [stdout] 894c9dd0cfaf280bd6ee9c4d61c6e2a4eee9bc6a9721de657a24ae3c6e1fb63a