[INFO] cloning repository https://github.com/charles-wangkai/cses
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/charles-wangkai/cses" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharles-wangkai%2Fcses", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharles-wangkai%2Fcses'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1670b8e55e61f90445fcb45ae77ebbb6c82a27ff
[INFO] checking charles-wangkai/cses against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharles-wangkai%2Fcses" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/charles-wangkai/cses
[INFO] finished tweaking git repo https://github.com/charles-wangkai/cses
[INFO] tweaked toml for git repo https://github.com/charles-wangkai/cses written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/charles-wangkai/cses on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/charles-wangkai/cses 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1bd55a12ecaf774ed3e3dbb2c69eeeeffda2c7f6b54b597276f5ec9f290d7170
[INFO] running `Command { std: "docker" "start" "-a" "1bd55a12ecaf774ed3e3dbb2c69eeeeffda2c7f6b54b597276f5ec9f290d7170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bd55a12ecaf774ed3e3dbb2c69eeeeffda2c7f6b54b597276f5ec9f290d7170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bd55a12ecaf774ed3e3dbb2c69eeeeffda2c7f6b54b597276f5ec9f290d7170", kill_on_drop: false }`
[INFO] [stdout] 1bd55a12ecaf774ed3e3dbb2c69eeeeffda2c7f6b54b597276f5ec9f290d7170
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7a2ae905d1dd31d63b9c35a3bc8138b3106723740383b835a5ca3c36998075b
[INFO] running `Command { std: "docker" "start" "-a" "c7a2ae905d1dd31d63b9c35a3bc8138b3106723740383b835a5ca3c36998075b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking cses v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/problemset_1624.rs:17:14
[INFO] [stdout]    |
[INFO] [stdout] 17 |               &split
[INFO] [stdout]    |  ______________^
[INFO] [stdout] 18 | |                 .next()
[INFO] [stdout] 19 | |                 .unwrap()
[INFO] [stdout] 20 | |                 .parse::<String>()
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cses` (bin "problemset_1624" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `cses` (bin "problemset_1625") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/problemset_1625.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let s: String = split.next().unwrap().parse().unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/bin/problemset_1639.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let s1: String = split.next().unwrap().parse().unwrap();
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/problemset_1639.rs:13:22
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let s2: String = split.next().unwrap().parse().unwrap();
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cses` (bin "problemset_1639") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c7a2ae905d1dd31d63b9c35a3bc8138b3106723740383b835a5ca3c36998075b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7a2ae905d1dd31d63b9c35a3bc8138b3106723740383b835a5ca3c36998075b", kill_on_drop: false }`
[INFO] [stdout] c7a2ae905d1dd31d63b9c35a3bc8138b3106723740383b835a5ca3c36998075b
