[INFO] cloning repository https://github.com/pythondude325/sleepy-rustaceans-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pythondude325/sleepy-rustaceans-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpythondude325%2Fsleepy-rustaceans-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpythondude325%2Fsleepy-rustaceans-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc7889309f4fd056ae9eda6614231b4deb33c310
[INFO] checking pythondude325/sleepy-rustaceans-lang against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpythondude325%2Fsleepy-rustaceans-lang" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pythondude325/sleepy-rustaceans-lang on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pythondude325/sleepy-rustaceans-lang
[INFO] finished tweaking git repo https://github.com/pythondude325/sleepy-rustaceans-lang
[INFO] tweaked toml for git repo https://github.com/pythondude325/sleepy-rustaceans-lang written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/pythondude325/sleepy-rustaceans-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6b45588491d2f8fbb33d61fa65552f6d9e71efa177c4925a09b0f3cac7d4a1c9
[INFO] running `Command { std: "docker" "start" "-a" "6b45588491d2f8fbb33d61fa65552f6d9e71efa177c4925a09b0f3cac7d4a1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b45588491d2f8fbb33d61fa65552f6d9e71efa177c4925a09b0f3cac7d4a1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b45588491d2f8fbb33d61fa65552f6d9e71efa177c4925a09b0f3cac7d4a1c9", kill_on_drop: false }`
[INFO] [stdout] 6b45588491d2f8fbb33d61fa65552f6d9e71efa177c4925a09b0f3cac7d4a1c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c55c8644994570b2a16a6491b1a10f327e08bca179e71d886e56a4e20601c651
[INFO] running `Command { std: "docker" "start" "-a" "c55c8644994570b2a16a6491b1a10f327e08bca179e71d886e56a4e20601c651", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling cactus v1.0.6
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling try_from v0.3.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking lasso v0.5.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling vob v2.0.6
[INFO] [stderr]    Compiling vergen v3.2.0
[INFO] [stderr]    Compiling lrpar v0.9.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking packedvec v1.2.3
[INFO] [stderr]     Checking bincode v1.3.2
[INFO] [stderr]     Checking sparsevec v0.1.3
[INFO] [stderr]     Checking cfgrammar v0.9.3
[INFO] [stderr]     Checking lrtable v0.9.3
[INFO] [stderr]     Checking lrlex v0.9.3
[INFO] [stderr]    Compiling sleepy-rustaceans-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]  --> src/executer.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn execute(token: &Expression) -> Result<(), ()> {
[INFO] [stdout]   |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]  --> src/executer.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn execute(token: &Expression) -> Result<(), ()> {
[INFO] [stdout]   |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `execute`
[INFO] [stdout]  --> src/executer.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn execute(token: &Expression) -> Result<(), ()> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `execute`
[INFO] [stdout]  --> src/executer.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn execute(token: &Expression) -> Result<(), ()> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c55c8644994570b2a16a6491b1a10f327e08bca179e71d886e56a4e20601c651", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c55c8644994570b2a16a6491b1a10f327e08bca179e71d886e56a4e20601c651", kill_on_drop: false }`
[INFO] [stdout] c55c8644994570b2a16a6491b1a10f327e08bca179e71d886e56a4e20601c651