[INFO] cloning repository https://github.com/yagince/at-coder-practice-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yagince/at-coder-practice-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyagince%2Fat-coder-practice-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyagince%2Fat-coder-practice-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ecae6863cb46fddafc7678b93c154903f59a3e0b [INFO] checking yagince/at-coder-practice-rs 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%2Fyagince%2Fat-coder-practice-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/yagince/at-coder-practice-rs [INFO] finished tweaking git repo https://github.com/yagince/at-coder-practice-rs [INFO] tweaked toml for git repo https://github.com/yagince/at-coder-practice-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/yagince/at-coder-practice-rs 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/yagince/at-coder-practice-rs 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5d6cf45229c01bb358164c7b252010dac3625964eb42c85544187d4375eb40c4 [INFO] running `Command { std: "docker" "start" "-a" "5d6cf45229c01bb358164c7b252010dac3625964eb42c85544187d4375eb40c4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5d6cf45229c01bb358164c7b252010dac3625964eb42c85544187d4375eb40c4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d6cf45229c01bb358164c7b252010dac3625964eb42c85544187d4375eb40c4", kill_on_drop: false }` [INFO] [stdout] 5d6cf45229c01bb358164c7b252010dac3625964eb42c85544187d4375eb40c4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7f6733a8ea93ff67b3627ab136e6e8cb04b54acf6f076aa5330f057354a5b4bc [INFO] running `Command { std: "docker" "start" "-a" "7f6733a8ea93ff67b3627ab136e6e8cb04b54acf6f076aa5330f057354a5b4bc", kill_on_drop: false }` [INFO] [stderr] Checking at-coder-practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/bin/abc058_b.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | $iter.next().unwrap().parse::<$t>().expect("Parse error") [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | / input! { [INFO] [stdout] 51 | | o: chars, [INFO] [stdout] 52 | | e: chars, [INFO] [stdout] 53 | | } [INFO] [stdout] | |_____- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the macro `read_value` which comes from the expansion of the macro `input` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/bin/abc058_b.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | $iter.next().unwrap().parse::<$t>().expect("Parse error") [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | / input! { [INFO] [stdout] 51 | | o: chars, [INFO] [stdout] 52 | | e: chars, [INFO] [stdout] 53 | | } [INFO] [stdout] | |_____- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `read_value` which comes from the expansion of the macro `input` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/bin/abc054_b.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | $iter.next().unwrap().parse::<$t>().expect("Parse error") [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | / input! { [INFO] [stdout] 52 | | n: usize, [INFO] [stdout] 53 | | m: usize, [INFO] [stdout] 54 | | a: [chars; n], [INFO] [stdout] 55 | | b: [chars; m], [INFO] [stdout] 56 | | } [INFO] [stdout] | |_____- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the macro `read_value` which comes from the expansion of the macro `input` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/bin/abc054_b.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | $iter.next().unwrap().parse::<$t>().expect("Parse error") [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | / input! { [INFO] [stdout] 52 | | n: usize, [INFO] [stdout] 53 | | m: usize, [INFO] [stdout] 54 | | a: [chars; n], [INFO] [stdout] 55 | | b: [chars; m], [INFO] [stdout] 56 | | } [INFO] [stdout] | |_____- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `read_value` which comes from the expansion of the macro `input` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `at-coder-practice` (bin "abc054_b" test) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `at-coder-practice` (bin "abc058_b" test) due to 2 previous errors [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/abc057_b.rs:72:13 [INFO] [stdout] | [INFO] [stdout] 72 | let mut indexes = diff_map.get_mut(&min).unwrap(); [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] error: this type will no longer be must used: Result [INFO] [stdout] --> src/bin/abc051_a.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | $iter.next().unwrap().parse::<$t>().expect("Parse error") [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | / input! { [INFO] [stdout] 52 | | input: String, [INFO] [stdout] 53 | | } [INFO] [stdout] | |_____- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the macro `read_value` which comes from the expansion of the macro `input` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `at-coder-practice` (bin "abc051_a" test) due to 1 previous error [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/bin/abc054_b.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | $iter.next().unwrap().parse::<$t>().expect("Parse error") [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | / input! { [INFO] [stdout] 52 | | n: usize, [INFO] [stdout] 53 | | m: usize, [INFO] [stdout] 54 | | a: [chars; n], [INFO] [stdout] 55 | | b: [chars; m], [INFO] [stdout] 56 | | } [INFO] [stdout] | |_____- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the macro `read_value` which comes from the expansion of the macro `input` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/bin/abc054_b.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | $iter.next().unwrap().parse::<$t>().expect("Parse error") [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | / input! { [INFO] [stdout] 52 | | n: usize, [INFO] [stdout] 53 | | m: usize, [INFO] [stdout] 54 | | a: [chars; n], [INFO] [stdout] 55 | | b: [chars; m], [INFO] [stdout] 56 | | } [INFO] [stdout] | |_____- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `read_value` which comes from the expansion of the macro `input` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `at-coder-practice` (bin "abc054_b") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "7f6733a8ea93ff67b3627ab136e6e8cb04b54acf6f076aa5330f057354a5b4bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f6733a8ea93ff67b3627ab136e6e8cb04b54acf6f076aa5330f057354a5b4bc", kill_on_drop: false }` [INFO] [stdout] 7f6733a8ea93ff67b3627ab136e6e8cb04b54acf6f076aa5330f057354a5b4bc