[INFO] fetching crate markovr 0.4.1... [INFO] testing markovr-0.4.1 against 1.91.0 for beta-1.92-2 [INFO] extracting crate markovr 0.4.1 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate markovr 0.4.1 [INFO] finished tweaking crates.io crate markovr 0.4.1 [INFO] tweaked toml for crates.io crate markovr 0.4.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate markovr 0.4.1 on toolchain 1.91.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate markovr 0.4.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 50da991abbbdaa325e60d110b561e8e38d27166c06f1946814a3149cb01e97ee [INFO] running `Command { std: "docker" "start" "-a" "50da991abbbdaa325e60d110b561e8e38d27166c06f1946814a3149cb01e97ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "50da991abbbdaa325e60d110b561e8e38d27166c06f1946814a3149cb01e97ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "50da991abbbdaa325e60d110b561e8e38d27166c06f1946814a3149cb01e97ee", kill_on_drop: false }` [INFO] [stdout] 50da991abbbdaa325e60d110b561e8e38d27166c06f1946814a3149cb01e97ee [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8aded79c13f780c8ea4ba45bc2e92a44c25865c686ef07e46fcc6d87b82a69ba [INFO] running `Command { std: "docker" "start" "-a" "8aded79c13f780c8ea4ba45bc2e92a44c25865c686ef07e46fcc6d87b82a69ba", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling ppv-lite86 v0.2.6 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling markovr v0.4.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::convert::TryFrom` [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:44:49 [INFO] [stdout] | [INFO] [stdout] 44 | let opts: Vec = optional_elements [INFO] [stdout] | _________________________________________________^ [INFO] [stdout] 45 | | .clone() [INFO] [stdout] | |____________________^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[usize]` does not implement `Clone`, so calling `clone` on `&[usize]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:114:49 [INFO] [stdout] | [INFO] [stdout] 114 | for partial_key in self.permute_key(view.clone().to_vec()) { [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.03s [INFO] running `Command { std: "docker" "inspect" "8aded79c13f780c8ea4ba45bc2e92a44c25865c686ef07e46fcc6d87b82a69ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8aded79c13f780c8ea4ba45bc2e92a44c25865c686ef07e46fcc6d87b82a69ba", kill_on_drop: false }` [INFO] [stdout] 8aded79c13f780c8ea4ba45bc2e92a44c25865c686ef07e46fcc6d87b82a69ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dca426159cef41a16c7bc6158d914bf1a5804aa3d0d69f1709583f5c2e0d9fca [INFO] running `Command { std: "docker" "start" "-a" "dca426159cef41a16c7bc6158d914bf1a5804aa3d0d69f1709583f5c2e0d9fca", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stdout] warning: unused import: `std::convert::TryFrom` [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:44:49 [INFO] [stdout] | [INFO] [stdout] 44 | let opts: Vec = optional_elements [INFO] [stdout] | _________________________________________________^ [INFO] [stdout] 45 | | .clone() [INFO] [stdout] | |____________________^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[usize]` does not implement `Clone`, so calling `clone` on `&[usize]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:114:49 [INFO] [stdout] | [INFO] [stdout] 114 | for partial_key in self.permute_key(view.clone().to_vec()) { [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling markovr v0.4.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::convert::TryFrom` [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:44:49 [INFO] [stdout] | [INFO] [stdout] 44 | let opts: Vec = optional_elements [INFO] [stdout] | _________________________________________________^ [INFO] [stdout] 45 | | .clone() [INFO] [stdout] | |____________________^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[usize]` does not implement `Clone`, so calling `clone` on `&[usize]` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:114:49 [INFO] [stdout] | [INFO] [stdout] 114 | for partial_key in self.permute_key(view.clone().to_vec()) { [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.06s [INFO] running `Command { std: "docker" "inspect" "dca426159cef41a16c7bc6158d914bf1a5804aa3d0d69f1709583f5c2e0d9fca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dca426159cef41a16c7bc6158d914bf1a5804aa3d0d69f1709583f5c2e0d9fca", kill_on_drop: false }` [INFO] [stdout] dca426159cef41a16c7bc6158d914bf1a5804aa3d0d69f1709583f5c2e0d9fca [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.91.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0c95b8317691a931285886cba2dfd5e3da9ef0d239a149ee7a0c7e06499cbca6 [INFO] running `Command { std: "docker" "start" "-a" "0c95b8317691a931285886cba2dfd5e3da9ef0d239a149ee7a0c7e06499cbca6", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] warning: unused import: `std::convert::TryFrom` [INFO] [stderr] --> src/lib.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::convert::TryFrom; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stderr] --> src/lib.rs:44:49 [INFO] [stderr] | [INFO] [stderr] 44 | let opts: Vec = optional_elements [INFO] [stderr] | _________________________________________________^ [INFO] [stderr] 45 | | .clone() [INFO] [stderr] | |____________________^ help: remove this redundant call [INFO] [stderr] | [INFO] [stderr] = note: the type `[usize]` does not implement `Clone`, so calling `clone` on `&[usize]` copies the reference, which does not do anything and can be removed [INFO] [stderr] = note: `#[warn(noop_method_call)]` on by default [INFO] [stderr] [INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stderr] --> src/lib.rs:114:49 [INFO] [stderr] | [INFO] [stderr] 114 | for partial_key in self.permute_key(view.clone().to_vec()) { [INFO] [stderr] | ^^^^^^^^ help: remove this redundant call [INFO] [stderr] | [INFO] [stderr] = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed [INFO] [stderr] [INFO] [stderr] warning: `markovr` (lib) generated 3 warnings (run `cargo fix --lib -p markovr` to apply 3 suggestions) [INFO] [stderr] warning: `markovr` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/markovr-f8e8e1c2034b79b5) [INFO] [stdout] [INFO] [stdout] running 10 tests [INFO] [stdout] test die::tests::coin ... ok [INFO] [stderr] Doc-tests markovr [INFO] [stdout] test die::tests::get_prob ... ok [INFO] [stdout] test die::tests::empty ... ok [INFO] [stdout] test die::tests::coin_with_edge ... ok [INFO] [stdout] test die::tests::modified_weight ... ok [INFO] [stdout] test die::tests::one_from_insertion ... ok [INFO] [stdout] test tests::alphabet_second_order ... ok [INFO] [stdout] test tests::alphabet_first_order ... ok [INFO] [stdout] test tests::empty ... ok [INFO] [stdout] test die::tests::six_sided_die ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0c95b8317691a931285886cba2dfd5e3da9ef0d239a149ee7a0c7e06499cbca6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c95b8317691a931285886cba2dfd5e3da9ef0d239a149ee7a0c7e06499cbca6", kill_on_drop: false }` [INFO] [stdout] 0c95b8317691a931285886cba2dfd5e3da9ef0d239a149ee7a0c7e06499cbca6