[INFO] cloning repository https://github.com/angelo-rendina-pendo/lz77
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/angelo-rendina-pendo/lz77" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelo-rendina-pendo%2Flz77", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelo-rendina-pendo%2Flz77'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 841fbb18891df01cc8ad5cd476a22b4cb336f02d
[INFO] checking angelo-rendina-pendo/lz77 against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelo-rendina-pendo%2Flz77" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/angelo-rendina-pendo/lz77 on toolchain 82acd1d76add2232e19c1f0feb250d2a19ec6efe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/angelo-rendina-pendo/lz77
[INFO] finished tweaking git repo https://github.com/angelo-rendina-pendo/lz77
[INFO] tweaked toml for git repo https://github.com/angelo-rendina-pendo/lz77 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/angelo-rendina-pendo/lz77 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f74992e4e4d899fe7f6314a551e75e3b66b896bc1c763afd4b0c568fe59c29bc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f74992e4e4d899fe7f6314a551e75e3b66b896bc1c763afd4b0c568fe59c29bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f74992e4e4d899fe7f6314a551e75e3b66b896bc1c763afd4b0c568fe59c29bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f74992e4e4d899fe7f6314a551e75e3b66b896bc1c763afd4b0c568fe59c29bc", kill_on_drop: false }`
[INFO] [stdout] f74992e4e4d899fe7f6314a551e75e3b66b896bc1c763afd4b0c568fe59c29bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0e25f00d566b258a219a1ca0ee2eefcc649cf623d916939a04e8b773d76dcde
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a0e25f00d566b258a219a1ca0ee2eefcc649cf623d916939a04e8b773d76dcde", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.69
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling wasm-bindgen v0.2.69
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.69
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.69
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.69
[INFO] [stderr]     Checking lz77 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `from_string`
[INFO] [stdout]  --> src/lz77/encode.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn from_string<U>(input: &str) -> Vec<Code<char, U>>
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_string`
[INFO] [stdout]  --> src/lz77/decode.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn to_string<U>(encoded: &[Code<char, U>]) -> String
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mem_size`
[INFO] [stdout]   --> src/lz77/mod.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn mem_size() -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mem_size`
[INFO] [stdout]   --> src/lz77/mod.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn mem_size() -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.67s
[INFO] running `Command { std: "docker" "inspect" "a0e25f00d566b258a219a1ca0ee2eefcc649cf623d916939a04e8b773d76dcde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0e25f00d566b258a219a1ca0ee2eefcc649cf623d916939a04e8b773d76dcde", kill_on_drop: false }`
[INFO] [stdout] a0e25f00d566b258a219a1ca0ee2eefcc649cf623d916939a04e8b773d76dcde