[INFO] cloning repository https://github.com/RumakBartosz/decay
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RumakBartosz/decay" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRumakBartosz%2Fdecay", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRumakBartosz%2Fdecay'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed26ebe0b8e740afb0a309620856de6dd1ce0157
[INFO] checking RumakBartosz/decay against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRumakBartosz%2Fdecay" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RumakBartosz/decay on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RumakBartosz/decay
[INFO] finished tweaking git repo https://github.com/RumakBartosz/decay
[INFO] tweaked toml for git repo https://github.com/RumakBartosz/decay written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/RumakBartosz/decay already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca4a8373ae2bbde2a1cff3c5183db56629c5704089923036ac291506eae269a6
[INFO] running `Command { std: "docker" "start" "-a" "ca4a8373ae2bbde2a1cff3c5183db56629c5704089923036ac291506eae269a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca4a8373ae2bbde2a1cff3c5183db56629c5704089923036ac291506eae269a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca4a8373ae2bbde2a1cff3c5183db56629c5704089923036ac291506eae269a6", kill_on_drop: false }`
[INFO] [stdout] ca4a8373ae2bbde2a1cff3c5183db56629c5704089923036ac291506eae269a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c166f4a48723f86ce29fbbb8c7aa3450a4cc5db2ef15a17f798ae86b1bf74026
[INFO] running `Command { std: "docker" "start" "-a" "c166f4a48723f86ce29fbbb8c7aa3450a4cc5db2ef15a17f798ae86b1bf74026", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking decay v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `r` should have an upper camel case name
[INFO] [stdout]  --> src/parser/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     r,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case: `R`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `b` should have an upper camel case name
[INFO] [stdout]  --> src/parser/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     b,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case: `B`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `o` should have an upper camel case name
[INFO] [stdout]  --> src/parser/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     o,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case (notice the capitalization): `O`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `x` should have an upper camel case name
[INFO] [stdout]  --> src/parser/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     x,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case (notice the capitalization): `X`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `r` should have an upper camel case name
[INFO] [stdout]  --> src/rand_bot/../parser/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     r,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case: `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `b` should have an upper camel case name
[INFO] [stdout]  --> src/rand_bot/../parser/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     b,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case: `B`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `o` should have an upper camel case name
[INFO] [stdout]  --> src/rand_bot/../parser/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     o,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case (notice the capitalization): `O`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `x` should have an upper camel case name
[INFO] [stdout]  --> src/rand_bot/../parser/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     x,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case (notice the capitalization): `X`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `r` should have an upper camel case name
[INFO] [stdout]  --> src/parser/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     r,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case: `R`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `b` should have an upper camel case name
[INFO] [stdout]  --> src/parser/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     b,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case: `B`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `o` should have an upper camel case name
[INFO] [stdout]  --> src/parser/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     o,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case (notice the capitalization): `O`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `x` should have an upper camel case name
[INFO] [stdout]  --> src/parser/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     x,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case (notice the capitalization): `X`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `r` should have an upper camel case name
[INFO] [stdout]  --> src/rand_bot/../parser/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     r,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case: `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `b` should have an upper camel case name
[INFO] [stdout]  --> src/rand_bot/../parser/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     b,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case: `B`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `o` should have an upper camel case name
[INFO] [stdout]  --> src/rand_bot/../parser/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     o,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case (notice the capitalization): `O`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `x` should have an upper camel case name
[INFO] [stdout]  --> src/rand_bot/../parser/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     x,
[INFO] [stdout]   |     ^ help: convert the identifier to upper camel case (notice the capitalization): `X`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             &self.make_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |             let _ = &self.make_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |             &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 121 |             let _ = &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |             &self.make_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 141 |             let _ = &self.make_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |             &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 143 |             let _ = &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |             &self.make_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 159 |             let _ = &self.make_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:161:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |             &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 161 |             let _ = &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             &self.make_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 119 |             let _ = &self.make_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |             &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 121 |             let _ = &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |             &self.make_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 141 |             let _ = &self.make_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |             &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 143 |             let _ = &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |             &self.make_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 159 |             let _ = &self.make_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/negamax/mod.rs:161:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |             &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 161 |             let _ = &self.unmake_move(&map, &available_move);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "c166f4a48723f86ce29fbbb8c7aa3450a4cc5db2ef15a17f798ae86b1bf74026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c166f4a48723f86ce29fbbb8c7aa3450a4cc5db2ef15a17f798ae86b1bf74026", kill_on_drop: false }`
[INFO] [stdout] c166f4a48723f86ce29fbbb8c7aa3450a4cc5db2ef15a17f798ae86b1bf74026