[INFO] cloning repository https://github.com/bakirillov/rustyguide [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bakirillov/rustyguide" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbakirillov%2Frustyguide", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbakirillov%2Frustyguide'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f30cddba8ee1daff98f4f2b2ffa9be3044de4f5b [INFO] checking bakirillov/rustyguide against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbakirillov%2Frustyguide" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bakirillov/rustyguide on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bakirillov/rustyguide [INFO] finished tweaking git repo https://github.com/bakirillov/rustyguide [INFO] tweaked toml for git repo https://github.com/bakirillov/rustyguide written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/bakirillov/rustyguide 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded crossbeam v0.4.1 [INFO] [stderr] Downloaded crossbeam-deque v0.5.2 [INFO] [stderr] Downloaded seq_io v0.3.0 [INFO] [stderr] Downloaded crossbeam-channel v0.2.6 [INFO] [stderr] Downloaded strsim v0.9.2 [INFO] [stderr] Downloaded docopt v1.1.0 [INFO] [stderr] Downloaded crossbeam-utils v0.5.0 [INFO] [stderr] Downloaded slice-deque v0.1.16 [INFO] [stderr] Downloaded buf_redux v0.7.1 [INFO] [stderr] Downloaded crossbeam-epoch v0.6.1 [INFO] [stderr] Downloaded crossbeam-epoch v0.5.2 [INFO] [stderr] Downloaded serde_json v1.0.42 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6953393527dcb019ef56cfbb2b1c848623d963bcf2574441cdf5ecc60de636a7 [INFO] running `Command { std: "docker" "start" "-a" "6953393527dcb019ef56cfbb2b1c848623d963bcf2574441cdf5ecc60de636a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6953393527dcb019ef56cfbb2b1c848623d963bcf2574441cdf5ecc60de636a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6953393527dcb019ef56cfbb2b1c848623d963bcf2574441cdf5ecc60de636a7", kill_on_drop: false }` [INFO] [stdout] 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"+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f88b08576361599b85d1847bd7079b7030299c2da5319e5af60d691dea439b9d [INFO] running `Command { std: "docker" "start" "-a" "f88b08576361599b85d1847bd7079b7030299c2da5319e5af60d691dea439b9d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Checking nodrop v0.1.14 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling serde v1.0.102 [INFO] [stderr] Checking crossbeam-utils v0.5.0 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking smallvec v0.6.13 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Compiling ryu v1.0.2 [INFO] [stderr] Checking safemem v0.2.0 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking number_prefix v0.3.0 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Checking strsim v0.9.2 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Compiling parking_lot_core v0.3.1 [INFO] [stderr] Checking crossbeam-epoch v0.6.1 [INFO] [stderr] Checking crossbeam-epoch v0.5.2 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking termios v0.3.1 [INFO] [stderr] Checking slice-deque v0.1.16 [INFO] [stderr] Checking clicolors-control v1.0.1 [INFO] [stderr] Checking crossbeam-deque v0.5.2 [INFO] [stderr] Checking buf_redux v0.7.1 [INFO] [stderr] Checking parking_lot v0.6.4 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking crossbeam-channel v0.2.6 [INFO] [stderr] Checking crossbeam v0.4.1 [INFO] [stderr] Checking console v0.9.1 [INFO] [stderr] Checking indicatif v0.13.0 [INFO] [stderr] Compiling serde_derive v1.0.102 [INFO] [stderr] Checking seq_io v0.3.0 [INFO] [stderr] Checking docopt v1.1.0 [INFO] [stderr] Checking serde_json v1.0.42 [INFO] [stderr] Checking rustyguide v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Result`, `Value` [INFO] [stdout] --> src/main.rs:13:18 [INFO] [stdout] | [INFO] [stdout] 13 | use serde_json::{Result, Value}; [INFO] [stdout] | ^^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Result`, `Value` [INFO] [stdout] --> src/main.rs:13:18 [INFO] [stdout] | [INFO] [stdout] 13 | use serde_json::{Result, Value}; [INFO] [stdout] | ^^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:103:21 [INFO] [stdout] | [INFO] [stdout] 103 | let mut windows = inter.windows(length as usize); [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] --> src/main.rs:111:25 [INFO] [stdout] | [INFO] [stdout] 111 | let mut p_guide = a.iter().cloned().collect::(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `cmd_scan`, `arg_pam`, `arg_before`, `arg_length`, `arg_input`, and `arg_output` are never read [INFO] [stdout] --> src/main.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 36 | struct Args { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 37 | cmd_scan: bool, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 38 | arg_pam: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 39 | arg_before: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 40 | arg_length: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 41 | arg_input: String, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 42 | arg_output: String [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `PAM` should have a snake case name [INFO] [stdout] --> src/main.rs:63:13 [INFO] [stdout] | [INFO] [stdout] 63 | let PAM = args.get_str(""); [INFO] [stdout] | ^^^ help: convert the identifier to snake case: `pam` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `PAM` should have a snake case name [INFO] [stdout] --> src/main.rs:70:13 [INFO] [stdout] | [INFO] [stdout] 70 | let PAM = args.get_str(""); [INFO] [stdout] | ^^^ help: convert the identifier to snake case: `pam` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `PAM_regex` should have a snake case name [INFO] [stdout] --> src/main.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let PAM_regex = PAM.replace("N", "[ATGC]"); [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `pam_regex` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:119:25 [INFO] [stdout] | [INFO] [stdout] 119 | write!(&mut file, "{}\n", p_guide); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:103:21 [INFO] [stdout] | [INFO] [stdout] 103 | let mut windows = inter.windows(length as usize); [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] --> src/main.rs:111:25 [INFO] [stdout] | [INFO] [stdout] 111 | let mut p_guide = a.iter().cloned().collect::(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `cmd_scan`, `arg_pam`, `arg_before`, `arg_length`, `arg_input`, and `arg_output` are never read [INFO] [stdout] --> src/main.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 36 | struct Args { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 37 | cmd_scan: bool, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 38 | arg_pam: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 39 | arg_before: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 40 | arg_length: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 41 | arg_input: String, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 42 | arg_output: String [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Args` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `PAM` should have a snake case name [INFO] [stdout] --> src/main.rs:63:13 [INFO] [stdout] | [INFO] [stdout] 63 | let PAM = args.get_str(""); [INFO] [stdout] | ^^^ help: convert the identifier to snake case: `pam` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `PAM` should have a snake case name [INFO] [stdout] --> src/main.rs:70:13 [INFO] [stdout] | [INFO] [stdout] 70 | let PAM = args.get_str(""); [INFO] [stdout] | ^^^ help: convert the identifier to snake case: `pam` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `PAM_regex` should have a snake case name [INFO] [stdout] --> src/main.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let PAM_regex = PAM.replace("N", "[ATGC]"); [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `pam_regex` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:119:25 [INFO] [stdout] | [INFO] [stdout] 119 | write!(&mut file, "{}\n", p_guide); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.83s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.7.1 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "f88b08576361599b85d1847bd7079b7030299c2da5319e5af60d691dea439b9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f88b08576361599b85d1847bd7079b7030299c2da5319e5af60d691dea439b9d", kill_on_drop: false }` [INFO] [stdout] f88b08576361599b85d1847bd7079b7030299c2da5319e5af60d691dea439b9d