[INFO] cloning repository https://github.com/tesserato/BibRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tesserato/BibRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftesserato%2FBibRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftesserato%2FBibRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e87866457f1938c212ca6eb721abbc626fd41df
[INFO] checking tesserato/BibRust against master#339e19697a39a78f4d669c217b7d21109215de41 for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftesserato%2FBibRust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tesserato/BibRust on toolchain 339e19697a39a78f4d669c217b7d21109215de41
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tesserato/BibRust
[INFO] finished tweaking git repo https://github.com/tesserato/BibRust
[INFO] tweaked toml for git repo https://github.com/tesserato/BibRust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/tesserato/BibRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+339e19697a39a78f4d669c217b7d21109215de41" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ff269a083d82e2936a38058f361d35e2cb927b57a2e892abafc2707d0d66abf8
[INFO] running `Command { std: "docker" "start" "-a" "ff269a083d82e2936a38058f361d35e2cb927b57a2e892abafc2707d0d66abf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff269a083d82e2936a38058f361d35e2cb927b57a2e892abafc2707d0d66abf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff269a083d82e2936a38058f361d35e2cb927b57a2e892abafc2707d0d66abf8", kill_on_drop: false }`
[INFO] [stdout] ff269a083d82e2936a38058f361d35e2cb927b57a2e892abafc2707d0d66abf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+339e19697a39a78f4d669c217b7d21109215de41" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79d084077c7a3afb76cfc56b9dd861e2a27d65b85480b15ac4fb9d102142bf56
[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" "79d084077c7a3afb76cfc56b9dd861e2a27d65b85480b15ac4fb9d102142bf56", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking bibrust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `iter::Cloned`, `string`
[INFO] [stdout]   --> src/main.rs:13:26
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::{io::BufReader, iter::Cloned, string};
[INFO] [stdout]    |                          ^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `iter::Cloned`, `string`
[INFO] [stdout]   --> src/main.rs:13:26
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::{io::BufReader, iter::Cloned, string};
[INFO] [stdout]    |                          ^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]    --> src/main.rs:127:7
[INFO] [stdout]     |
[INFO] [stdout] 127 |   let mut t="".to_string();
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:172:7
[INFO] [stdout]     |
[INFO] [stdout] 172 |   let mut file = File::open(path).unwrap();
[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:226:7
[INFO] [stdout]     |
[INFO] [stdout] 226 |   let mut tags: Vec<String> = 
[INFO] [stdout]     |       ----^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `t` is never read
[INFO] [stdout]    --> src/main.rs:127:7
[INFO] [stdout]     |
[INFO] [stdout] 127 |   let mut t="".to_string();
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:311:15
[INFO] [stdout]     |
[INFO] [stdout] 311 |           let mut value = &parse_generic_field(vec[1]);
[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:172:7
[INFO] [stdout]     |
[INFO] [stdout] 172 |   let mut file = File::open(path).unwrap();
[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:571:29
[INFO] [stdout]     |
[INFO] [stdout] 571 | fn remove_redundant_Entries(mut entries: & mut Vec<Entry>){
[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:226:7
[INFO] [stdout]     |
[INFO] [stdout] 226 |   let mut tags: Vec<String> = 
[INFO] [stdout]     |       ----^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_to_ads`
[INFO] [stdout]    --> src/main.rs:440:4
[INFO] [stdout]     |
[INFO] [stdout] 440 | fn write_to_ads(){
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `remove_by_field`
[INFO] [stdout]    --> src/main.rs:630:4
[INFO] [stdout]     |
[INFO] [stdout] 630 | fn remove_by_field(mut entries: & mut Vec<Entry>, field:&str){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `merge`
[INFO] [stdout]    --> src/main.rs:656:4
[INFO] [stdout]     |
[INFO] [stdout] 656 | fn merge(entries: &mut Vec<Entry>, i: usize, j: usize) -> bool{
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:311:15
[INFO] [stdout]     |
[INFO] [stdout] 311 |           let mut value = &parse_generic_field(vec[1]);
[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:571:29
[INFO] [stdout]     |
[INFO] [stdout] 571 | fn remove_redundant_Entries(mut entries: & mut Vec<Entry>){
[INFO] [stdout]     |                             ----^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_to_ads`
[INFO] [stdout]    --> src/main.rs:440:4
[INFO] [stdout]     |
[INFO] [stdout] 440 | fn write_to_ads(){
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `remove_by_field`
[INFO] [stdout]    --> src/main.rs:630:4
[INFO] [stdout]     |
[INFO] [stdout] 630 | fn remove_by_field(mut entries: & mut Vec<Entry>, field:&str){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `merge`
[INFO] [stdout]    --> src/main.rs:656:4
[INFO] [stdout]     |
[INFO] [stdout] 656 | fn merge(entries: &mut Vec<Entry>, i: usize, j: usize) -> bool{
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:349:3
[INFO] [stdout]     |
[INFO] [stdout] 349 |   write!(f,"\u{feff}"); // BOM, indicating uft8 for excel
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:451:3
[INFO] [stdout]     |
[INFO] [stdout] 451 |   writeln!(f, "test 01\ntest 02");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:349:3
[INFO] [stdout]     |
[INFO] [stdout] 349 |   write!(f,"\u{feff}"); // BOM, indicating uft8 for excel
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:451:3
[INFO] [stdout]     |
[INFO] [stdout] 451 |   writeln!(f, "test 01\ntest 02");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `Command { std: "docker" "inspect" "79d084077c7a3afb76cfc56b9dd861e2a27d65b85480b15ac4fb9d102142bf56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79d084077c7a3afb76cfc56b9dd861e2a27d65b85480b15ac4fb9d102142bf56", kill_on_drop: false }`
[INFO] [stdout] 79d084077c7a3afb76cfc56b9dd861e2a27d65b85480b15ac4fb9d102142bf56