[INFO] cloning repository https://github.com/jianlexia/rustlesson4 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jianlexia/rustlesson4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjianlexia%2Frustlesson4", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjianlexia%2Frustlesson4'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 57df6374e26b47b3ec4ce8ec7c45357ab4bc09a8 [INFO] checking jianlexia/rustlesson4 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjianlexia%2Frustlesson4" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jianlexia/rustlesson4 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jianlexia/rustlesson4 [INFO] finished tweaking git repo https://github.com/jianlexia/rustlesson4 [INFO] tweaked toml for git repo https://github.com/jianlexia/rustlesson4 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/jianlexia/rustlesson4 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded chrono v0.4.18 [INFO] [stderr] Downloaded libc v0.2.77 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 67fca27e351d56dcff3c066cd950fa680050a5eb9bbab815a3813d6e76c761c8 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "67fca27e351d56dcff3c066cd950fa680050a5eb9bbab815a3813d6e76c761c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "67fca27e351d56dcff3c066cd950fa680050a5eb9bbab815a3813d6e76c761c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "67fca27e351d56dcff3c066cd950fa680050a5eb9bbab815a3813d6e76c761c8", kill_on_drop: false }` [INFO] [stdout] 67fca27e351d56dcff3c066cd950fa680050a5eb9bbab815a3813d6e76c761c8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d62916740bf123c8dc19d3531b9ac39aaa595b6d9f9ae3eea5ccb025a56aec3a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d62916740bf123c8dc19d3531b9ac39aaa595b6d9f9ae3eea5ccb025a56aec3a", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking textwrap v0.10.0 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Checking chrono v0.4.18 [INFO] [stderr] Checking mycat v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/main.rs:7:21 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::{Read, BufRead}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `param` [INFO] [stdout] --> src/main.rs:71:23 [INFO] [stdout] | [INFO] [stdout] 71 | ("time", Some(param)) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_param` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufRead` [INFO] [stdout] --> src/main.rs:7:21 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::{Read, BufRead}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 61 | let mut f = File::open(filePath).expect("[mycat Error] File not found."); [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:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | let mut buf = io::BufReader::new(f); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:73:17 [INFO] [stdout] | [INFO] [stdout] 73 | let mut dt = Local::now(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `filePath` should have a snake case name [INFO] [stdout] --> src/main.rs:60:17 [INFO] [stdout] | [INFO] [stdout] 60 | let filePath = Path::new(&file); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `file_path` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `printLine` should have a snake case name [INFO] [stdout] --> src/main.rs:82:4 [INFO] [stdout] | [INFO] [stdout] 82 | fn printLine(line: String) { [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `print_line` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `param` [INFO] [stdout] --> src/main.rs:71:23 [INFO] [stdout] | [INFO] [stdout] 71 | ("time", Some(param)) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_param` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:61:17 [INFO] [stdout] | [INFO] [stdout] 61 | let mut f = File::open(filePath).expect("[mycat Error] File not found."); [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:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | let mut buf = io::BufReader::new(f); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:73:17 [INFO] [stdout] | [INFO] [stdout] 73 | let mut dt = Local::now(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `filePath` should have a snake case name [INFO] [stdout] --> src/main.rs:60:17 [INFO] [stdout] | [INFO] [stdout] 60 | let filePath = Path::new(&file); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `file_path` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `printLine` should have a snake case name [INFO] [stdout] --> src/main.rs:82:4 [INFO] [stdout] | [INFO] [stdout] 82 | fn printLine(line: String) { [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `print_line` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.80s [INFO] running `Command { std: "docker" "inspect" "d62916740bf123c8dc19d3531b9ac39aaa595b6d9f9ae3eea5ccb025a56aec3a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d62916740bf123c8dc19d3531b9ac39aaa595b6d9f9ae3eea5ccb025a56aec3a", kill_on_drop: false }` [INFO] [stdout] d62916740bf123c8dc19d3531b9ac39aaa595b6d9f9ae3eea5ccb025a56aec3a