[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 [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::() [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 [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 [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 [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