[INFO] cloning repository https://github.com/wyhhh/snake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wyhhh/snake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyhhh%2Fsnake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyhhh%2Fsnake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11f56dd02d38f264bbd71b77bbac42345b6b3f3e
[INFO] checking wyhhh/snake against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyhhh%2Fsnake" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wyhhh/snake on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wyhhh/snake
[INFO] finished tweaking git repo https://github.com/wyhhh/snake
[INFO] tweaked toml for git repo https://github.com/wyhhh/snake written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wyhhh/snake 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/wyhhh/vec_list`
[INFO] [stderr]     Updating git repository `https://github.com/wyhhh/wutil.git`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5cc5f2545f0967d97986b3a2b42d4c57ca2071d7e48dc2adf138d716a558e2b
[INFO] running `Command { std: "docker" "start" "-a" "e5cc5f2545f0967d97986b3a2b42d4c57ca2071d7e48dc2adf138d716a558e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5cc5f2545f0967d97986b3a2b42d4c57ca2071d7e48dc2adf138d716a558e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5cc5f2545f0967d97986b3a2b42d4c57ca2071d7e48dc2adf138d716a558e2b", kill_on_drop: false }`
[INFO] [stdout] e5cc5f2545f0967d97986b3a2b42d4c57ca2071d7e48dc2adf138d716a558e2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19d82ee5b46289152ba36a653aed11cef9af6c41924e2ea1a607c124c56e212a
[INFO] running `Command { std: "docker" "start" "-a" "19d82ee5b46289152ba36a653aed11cef9af6c41924e2ea1a607c124c56e212a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking vec_list v0.1.0 (https://github.com/wyhhh/vec_list#e9373438)
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.23.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking wutil v0.1.0 (https://github.com/wyhhh/wutil.git#cfb80506)
[INFO] [stdout] note: trace_macro
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/wutil-1c56ad7d846ae03e/cfb8050/src/util.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 write!(f, "N/A")
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expanding `write! { f, "N/A" }`
[INFO] [stdout]    = note: to `f.write_fmt($crate :: format_args! ("N/A"))`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: trace_macro
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/wutil-1c56ad7d846ae03e/cfb8050/src/util.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 | /                 write!(
[INFO] [stdout] 64 | |                     f,
[INFO] [stdout] 65 | |                     "{:.width$?}%",
[INFO] [stdout] 66 | |                     self.0.rate(self.1),
[INFO] [stdout] 67 | |                     width = self.2 as usize
[INFO] [stdout] 68 | |                 )
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expanding `write! { f, "{:.width$?}%", self.0.rate(self.1), width = self.2 as usize }`
[INFO] [stdout]    = note: to `f.write_fmt($crate :: format_args!
[INFO] [stdout]            ("{:.width$?}%", self.0.rate(self.1), width = self.2 as usize))`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: trace_macro
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/wutil-1c56ad7d846ae03e/cfb8050/src/util.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             write!(f, "{:?}", self)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expanding `write! { f, "{:?}", self }`
[INFO] [stdout]    = note: to `f.write_fmt($crate :: format_args! ("{:?}", self))`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: trace_macro
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/wutil-1c56ad7d846ae03e/cfb8050/src/util.rs:90:17
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 write!(f, "N/A")
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expanding `write! { f, "N/A" }`
[INFO] [stdout]    = note: to `f.write_fmt($crate :: format_args! ("N/A"))`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: trace_macro
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/wutil-1c56ad7d846ae03e/cfb8050/src/util.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 | /                 write!(
[INFO] [stdout] 93 | |                     f,
[INFO] [stdout] 94 | |                     "{:.width$?}%",
[INFO] [stdout] 95 | |                     100.0 - self.0.rate(self.1),
[INFO] [stdout] 96 | |                     width = self.2 as usize
[INFO] [stdout] 97 | |                 )
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expanding `write! { f, "{:.width$?}%", 100.0 - self.0.rate(self.1), width = self.2 as usize }`
[INFO] [stdout]    = note: to `f.write_fmt($crate :: format_args!
[INFO] [stdout]            ("{:.width$?}%", 100.0 - self.0.rate(self.1), width = self.2 as usize))`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] note: trace_macro
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/wutil-1c56ad7d846ae03e/cfb8050/src/util.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |             write!(f, "{:?}", self)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expanding `write! { f, "{:?}", self }`
[INFO] [stdout]     = note: to `f.write_fmt($crate :: format_args! ("{:?}", self))`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:300:21
[INFO] [stdout]     |
[INFO] [stdout] 300 |                 let mut flower_tier =
[INFO] [stdout]     |                     ----^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_laugh_head` is never used
[INFO] [stdout]    --> src/main.rs:192:8
[INFO] [stdout]     |
[INFO] [stdout] 151 | impl Tier {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 192 |     fn is_laugh_head(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     crossterm::execute! {
[INFO] [stdout] 17 | |         stdout(),
[INFO] [stdout] 18 | |         cursor::Hide,
[INFO] [stdout] 19 | |     };
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `crossterm::execute` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:300:21
[INFO] [stdout]     |
[INFO] [stdout] 300 |                 let mut flower_tier =
[INFO] [stdout]     |                     ----^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_laugh_head` is never used
[INFO] [stdout]    --> src/main.rs:192:8
[INFO] [stdout]     |
[INFO] [stdout] 151 | impl Tier {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 192 |     fn is_laugh_head(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     crossterm::execute! {
[INFO] [stdout] 17 | |         stdout(),
[INFO] [stdout] 18 | |         cursor::Hide,
[INFO] [stdout] 19 | |     };
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `crossterm::execute` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.43s
[INFO] running `Command { std: "docker" "inspect" "19d82ee5b46289152ba36a653aed11cef9af6c41924e2ea1a607c124c56e212a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19d82ee5b46289152ba36a653aed11cef9af6c41924e2ea1a607c124c56e212a", kill_on_drop: false }`
[INFO] [stdout] 19d82ee5b46289152ba36a653aed11cef9af6c41924e2ea1a607c124c56e212a