[INFO] cloning repository https://github.com/hitohata/math-and-algorithm-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hitohata/math-and-algorithm-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhitohata%2Fmath-and-algorithm-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhitohata%2Fmath-and-algorithm-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3e25486a0a1262a070e1235ddb80f6da4130a47
[INFO] checking hitohata/math-and-algorithm-rust against try#a0cd57eba5d417638d3351ba13fc414ad1a24bec for pr-134688-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhitohata%2Fmath-and-algorithm-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hitohata/math-and-algorithm-rust on toolchain a0cd57eba5d417638d3351ba13fc414ad1a24bec
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a0cd57eba5d417638d3351ba13fc414ad1a24bec" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hitohata/math-and-algorithm-rust
[INFO] finished tweaking git repo https://github.com/hitohata/math-and-algorithm-rust
[INFO] tweaked toml for git repo https://github.com/hitohata/math-and-algorithm-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/hitohata/math-and-algorithm-rust 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" "+a0cd57eba5d417638d3351ba13fc414ad1a24bec" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+a0cd57eba5d417638d3351ba13fc414ad1a24bec" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2acf4689d11abf80a7a290413db5ab14437128a2da2c13b9bce585abd4f943df
[INFO] running `Command { std: "docker" "start" "-a" "2acf4689d11abf80a7a290413db5ab14437128a2da2c13b9bce585abd4f943df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2acf4689d11abf80a7a290413db5ab14437128a2da2c13b9bce585abd4f943df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2acf4689d11abf80a7a290413db5ab14437128a2da2c13b9bce585abd4f943df", kill_on_drop: false }`
[INFO] [stdout] 2acf4689d11abf80a7a290413db5ab14437128a2da2c13b9bce585abd4f943df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+a0cd57eba5d417638d3351ba13fc414ad1a24bec" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bf12effee946eba8308799fd64730d8a57e22a98eb385590fbf427bd5e700c8
[INFO] running `Command { std: "docker" "start" "-a" "6bf12effee946eba8308799fd64730d8a57e22a98eb385590fbf427bd5e700c8", kill_on_drop: false }`
[INFO] [stderr]     Checking proconio v0.4.3
[INFO] [stderr]     Checking math-and-algorithm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `a_pair` is never read
[INFO] [stdout]   --> src/bin/037.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut a_pair = vec![0; 2];
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b_pair` is never read
[INFO] [stdout]   --> src/bin/037.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut b_pair = vec![0; 2];
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c_pair` is never read
[INFO] [stdout]   --> src/bin/037.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let mut c_pair = vec![0; 2];
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `d_pair` is never read
[INFO] [stdout]   --> src/bin/037.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let mut d_pair = vec![0; 2];
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/bin/056.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{self, write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a_pair` is never read
[INFO] [stdout]   --> src/bin/037.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut a_pair = vec![0; 2];
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b_pair` is never read
[INFO] [stdout]   --> src/bin/037.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut b_pair = vec![0; 2];
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c_pair` is never read
[INFO] [stdout]   --> src/bin/037.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let mut c_pair = vec![0; 2];
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `d_pair` is never read
[INFO] [stdout]   --> src/bin/037.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let mut d_pair = vec![0; 2];
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Mutex`
[INFO] [stdout]  --> src/bin/055.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Mutex`
[INFO] [stdout]  --> src/bin/055.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/bin/056.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{self, write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.82s
[INFO] running `Command { std: "docker" "inspect" "6bf12effee946eba8308799fd64730d8a57e22a98eb385590fbf427bd5e700c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf12effee946eba8308799fd64730d8a57e22a98eb385590fbf427bd5e700c8", kill_on_drop: false }`
[INFO] [stdout] 6bf12effee946eba8308799fd64730d8a57e22a98eb385590fbf427bd5e700c8