[INFO] cloning repository https://github.com/kroemeke/wordtop [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kroemeke/wordtop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkroemeke%2Fwordtop", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkroemeke%2Fwordtop'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2cb2dad33f02d9c7b252f99c2672cf113bed455a [INFO] testing kroemeke/wordtop against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkroemeke%2Fwordtop" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/kroemeke/wordtop [INFO] finished tweaking git repo https://github.com/kroemeke/wordtop [INFO] tweaked toml for git repo https://github.com/kroemeke/wordtop written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/kroemeke/wordtop on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/kroemeke/wordtop 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--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] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded autocfg v1.0.1 [INFO] [stderr] Downloaded ctrlc v3.2.1 [INFO] [stderr] Downloaded unicode-width v0.1.9 [INFO] [stderr] Downloaded nix v0.23.0 [INFO] [stderr] Downloaded cc v1.0.72 [INFO] [stderr] Downloaded libc v0.2.108 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e07ceea2b52243a3ed1c784018f227f0931596261cc907a09592eba66ec86b7b [INFO] running `Command { std: "docker" "start" "-a" "e07ceea2b52243a3ed1c784018f227f0931596261cc907a09592eba66ec86b7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e07ceea2b52243a3ed1c784018f227f0931596261cc907a09592eba66ec86b7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e07ceea2b52243a3ed1c784018f227f0931596261cc907a09592eba66ec86b7b", kill_on_drop: false }` [INFO] [stdout] e07ceea2b52243a3ed1c784018f227f0931596261cc907a09592eba66ec86b7b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 93026173254b590a277c442f7da40e7b13bab9e2593430658d6f7b18aa5123b8 [INFO] running `Command { std: "docker" "start" "-a" "93026173254b590a277c442f7da40e7b13bab9e2593430658d6f7b18aa5123b8", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.108 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling unicode-width v0.1.9 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling nix v0.23.0 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling ctrlc v3.2.1 [INFO] [stderr] Compiling wordtop v0.1.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `sorted_vec` is never read [INFO] [stdout] --> src/calculate.rs:86:17 [INFO] [stdout] | [INFO] [stdout] 86 | let mut sorted_vec = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `sorted_vec` is never read [INFO] [stdout] --> src/calculate.rs:103:17 [INFO] [stdout] | [INFO] [stdout] 103 | let mut sorted_vec = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> src/print.rs:21:17 [INFO] [stdout] | [INFO] [stdout] 21 | count = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.20s [INFO] running `Command { std: "docker" "inspect" "93026173254b590a277c442f7da40e7b13bab9e2593430658d6f7b18aa5123b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "93026173254b590a277c442f7da40e7b13bab9e2593430658d6f7b18aa5123b8", kill_on_drop: false }` [INFO] [stdout] 93026173254b590a277c442f7da40e7b13bab9e2593430658d6f7b18aa5123b8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 153b3d823633a3ca9f0b809c2d52af330fa476ac2cf93247fb8526778c4c7d12 [INFO] running `Command { std: "docker" "start" "-a" "153b3d823633a3ca9f0b809c2d52af330fa476ac2cf93247fb8526778c4c7d12", kill_on_drop: false }` [INFO] [stderr] Compiling wordtop v0.1.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `sorted_vec` is never read [INFO] [stdout] --> src/calculate.rs:86:17 [INFO] [stdout] | [INFO] [stdout] 86 | let mut sorted_vec = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `count` is never read [INFO] [stdout] --> src/print.rs:21:17 [INFO] [stdout] | [INFO] [stdout] 21 | count = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/print.rs:76:18 [INFO] [stdout] | [INFO] [stdout] 76 | let (mut k, mut t) = print_stats(&x, 10, 10); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/print.rs:76:25 [INFO] [stdout] | [INFO] [stdout] 76 | let (mut k, mut t) = print_stats(&x, 10, 10); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/print.rs:76:14 [INFO] [stdout] | [INFO] [stdout] 76 | let (mut k, mut t) = print_stats(&x, 10, 10); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/print.rs:76:21 [INFO] [stdout] | [INFO] [stdout] 76 | let (mut k, mut t) = print_stats(&x, 10, 10); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `sorted_vec` is never read [INFO] [stdout] --> src/calculate.rs:103:17 [INFO] [stdout] | [INFO] [stdout] 103 | let mut sorted_vec = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.80s [INFO] running `Command { std: "docker" "inspect" "153b3d823633a3ca9f0b809c2d52af330fa476ac2cf93247fb8526778c4c7d12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "153b3d823633a3ca9f0b809c2d52af330fa476ac2cf93247fb8526778c4c7d12", kill_on_drop: false }` [INFO] [stdout] 153b3d823633a3ca9f0b809c2d52af330fa476ac2cf93247fb8526778c4c7d12 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e32edca2c73f004d5621413f7ff3e037876957417208e42a79a28edac65a8778 [INFO] running `Command { std: "docker" "start" "-a" "e32edca2c73f004d5621413f7ff3e037876957417208e42a79a28edac65a8778", kill_on_drop: false }` [INFO] [stderr] warning: value assigned to `sorted_vec` is never read [INFO] [stderr] --> src/calculate.rs:86:17 [INFO] [stderr] | [INFO] [stderr] 86 | let mut sorted_vec = Vec::new(); [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `count` is never read [INFO] [stderr] --> src/print.rs:21:17 [INFO] [stderr] | [INFO] [stderr] 21 | count = 0; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `k` [INFO] [stderr] --> src/print.rs:76:18 [INFO] [stderr] | [INFO] [stderr] 76 | let (mut k, mut t) = print_stats(&x, 10, 10); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/print.rs:76:25 [INFO] [stderr] | [INFO] [stderr] 76 | let (mut k, mut t) = print_stats(&x, 10, 10); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/print.rs:76:14 [INFO] [stderr] | [INFO] [stderr] 76 | let (mut k, mut t) = print_stats(&x, 10, 10); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/print.rs:76:21 [INFO] [stderr] | [INFO] [stderr] 76 | let (mut k, mut t) = print_stats(&x, 10, 10); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `sorted_vec` is never read [INFO] [stderr] --> src/calculate.rs:103:17 [INFO] [stderr] | [INFO] [stderr] 103 | let mut sorted_vec = Vec::new(); [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: `wordtop` (bin "wordtop" test) generated 7 warnings (run `cargo fix --bin "wordtop" --tests` to apply 2 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/wordtop-9050dfab6117914c) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test print::tests::test_print_stats ... ok [INFO] [stdout] test calculate::tests::test_calculate_rate ... ok [INFO] [stdout] test calculate::tests::test_calculate_rate_top ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e32edca2c73f004d5621413f7ff3e037876957417208e42a79a28edac65a8778", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e32edca2c73f004d5621413f7ff3e037876957417208e42a79a28edac65a8778", kill_on_drop: false }` [INFO] [stdout] e32edca2c73f004d5621413f7ff3e037876957417208e42a79a28edac65a8778