[INFO] fetching crate nit-rs 0.1.0...
[INFO] building nit-rs-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate nit-rs 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate nit-rs 0.1.0
[INFO] finished tweaking crates.io crate nit-rs 0.1.0
[INFO] tweaked toml for crates.io crate nit-rs 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nit-rs 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nit-rs 0.1.0 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.126
[INFO] [stderr]   Downloaded libc v0.2.98
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d8e7590ce0ad7f1fbb18a9cd84f9f2eb8241268a7f96fa67197eaa86fe48694
[INFO] running `Command { std: "docker" "start" "-a" "5d8e7590ce0ad7f1fbb18a9cd84f9f2eb8241268a7f96fa67197eaa86fe48694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d8e7590ce0ad7f1fbb18a9cd84f9f2eb8241268a7f96fa67197eaa86fe48694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d8e7590ce0ad7f1fbb18a9cd84f9f2eb8241268a7f96fa67197eaa86fe48694", kill_on_drop: false }`
[INFO] [stdout] 5d8e7590ce0ad7f1fbb18a9cd84f9f2eb8241268a7f96fa67197eaa86fe48694
[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_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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 870b3718e09b06931937a52b47bed5b0b999b6353e3a60e1aa8e91abb6bb1a76
[INFO] running `Command { std: "docker" "start" "-a" "870b3718e09b06931937a52b47bed5b0b999b6353e3a60e1aa8e91abb6bb1a76", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling nit-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Stdio`
[INFO] [stdout]  --> src/nitc.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::process::{Command, Stdio};
[INFO] [stdout]   |                             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, and `BufWriter`
[INFO] [stdout]  --> src/nitc.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufRead,BufReader, BufWriter};
[INFO] [stdout]   |               ^^^^^^^ ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/configure.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/configure.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `toml::Value`
[INFO] [stdout]  --> src/configure.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use toml::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/nitc.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         _ => {
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/nitc.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         NitEvent::Error => println!("[{0}] {1}", "ERR".red(), msg),
[INFO] [stdout]    |         --------------- matches some of the same values
[INFO] [stdout] 35 |         NitEvent::Warning => println!("[{0}] {1}", "WARN".yellow(), msg),
[INFO] [stdout]    |         ----------------- matches some of the same values
[INFO] [stdout] 36 |         NitEvent::Info => println!("[{0}] {1}", "MSG".blue(), msg),
[INFO] [stdout]    |         -------------- matches some of the same values
[INFO] [stdout] 37 |         NitEvent::Success => println!("[{0}] {1}", "SUCCESS".green(), msg),
[INFO] [stdout]    |         ----------------- matches some of the same values
[INFO] [stdout] 38 |         _ => {
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `up`
[INFO] [stdout]   --> src/nitc.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let up = String::from_utf8_lossy(&child.stdout);
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_up`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/nitc.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut pwd =
[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/nitc.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let mut fullpath = format!("{}\\7z.exe", &directory);
[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/nitc.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let mut child =
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vec` is never read
[INFO] [stdout]   --> src/main.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut vec = Vec::with_capacity(2);
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.29s
[INFO] running `Command { std: "docker" "inspect" "870b3718e09b06931937a52b47bed5b0b999b6353e3a60e1aa8e91abb6bb1a76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "870b3718e09b06931937a52b47bed5b0b999b6353e3a60e1aa8e91abb6bb1a76", kill_on_drop: false }`
[INFO] [stdout] 870b3718e09b06931937a52b47bed5b0b999b6353e3a60e1aa8e91abb6bb1a76
[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_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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e64e5d019d9d0bd4340e25c227bfa07e3e0d7c40f9a0714de324d72b41c08844
[INFO] running `Command { std: "docker" "start" "-a" "e64e5d019d9d0bd4340e25c227bfa07e3e0d7c40f9a0714de324d72b41c08844", kill_on_drop: false }`
[INFO] [stderr]    Compiling nit-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Stdio`
[INFO] [stdout]  --> src/nitc.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::process::{Command, Stdio};
[INFO] [stdout]   |                             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, and `BufWriter`
[INFO] [stdout]  --> src/nitc.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufRead,BufReader, BufWriter};
[INFO] [stdout]   |               ^^^^^^^ ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/configure.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/configure.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `toml::Value`
[INFO] [stdout]  --> src/configure.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use toml::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/nitc.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         _ => {
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/nitc.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         NitEvent::Error => println!("[{0}] {1}", "ERR".red(), msg),
[INFO] [stdout]    |         --------------- matches some of the same values
[INFO] [stdout] 35 |         NitEvent::Warning => println!("[{0}] {1}", "WARN".yellow(), msg),
[INFO] [stdout]    |         ----------------- matches some of the same values
[INFO] [stdout] 36 |         NitEvent::Info => println!("[{0}] {1}", "MSG".blue(), msg),
[INFO] [stdout]    |         -------------- matches some of the same values
[INFO] [stdout] 37 |         NitEvent::Success => println!("[{0}] {1}", "SUCCESS".green(), msg),
[INFO] [stdout]    |         ----------------- matches some of the same values
[INFO] [stdout] 38 |         _ => {
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `up`
[INFO] [stdout]   --> src/nitc.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let up = String::from_utf8_lossy(&child.stdout);
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_up`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/nitc.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut pwd =
[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/nitc.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let mut fullpath = format!("{}\\7z.exe", &directory);
[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/nitc.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let mut child =
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vec` is never read
[INFO] [stdout]   --> src/main.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut vec = Vec::with_capacity(2);
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "e64e5d019d9d0bd4340e25c227bfa07e3e0d7c40f9a0714de324d72b41c08844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e64e5d019d9d0bd4340e25c227bfa07e3e0d7c40f9a0714de324d72b41c08844", kill_on_drop: false }`
[INFO] [stdout] e64e5d019d9d0bd4340e25c227bfa07e3e0d7c40f9a0714de324d72b41c08844
