[INFO] cloning repository https://github.com/Cirru/parser.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Cirru/parser.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCirru%2Fparser.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCirru%2Fparser.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bd830d39d0baed583608aa3de83ef3e880c112d
[INFO] checking Cirru/parser.rs against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCirru%2Fparser.rs" "/workspace/builds/worker-98/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-98/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Cirru/parser.rs on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Cirru/parser.rs
[INFO] finished tweaking git repo https://github.com/Cirru/parser.rs
[INFO] tweaked toml for git repo https://github.com/Cirru/parser.rs written to /workspace/builds/worker-98/source/Cargo.toml
[INFO] crate git repo https://github.com/Cirru/parser.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--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-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f00d9841b870c55ef56a684339f442d28110e1cfad899568183545f1cd9741a
[INFO] running `Command { std: "docker" "start" "-a" "4f00d9841b870c55ef56a684339f442d28110e1cfad899568183545f1cd9741a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f00d9841b870c55ef56a684339f442d28110e1cfad899568183545f1cd9741a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f00d9841b870c55ef56a684339f442d28110e1cfad899568183545f1cd9741a", kill_on_drop: false }`
[INFO] [stdout] 4f00d9841b870c55ef56a684339f442d28110e1cfad899568183545f1cd9741a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 512d08fc60abe150333331d513f2a2b2b68c3f97a307ed4890a69efdc6710aad
[INFO] running `Command { std: "docker" "start" "-a" "512d08fc60abe150333331d513f2a2b2b68c3f97a307ed4890a69efdc6710aad", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking cirru_parser v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `demo`
[INFO] [stdout]   --> src/main.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 |   let demo = String::from(
[INFO] [stdout]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_demo`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `demo`
[INFO] [stdout]   --> src/main.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 |   let demo = String::from(
[INFO] [stdout]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_demo`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 1m 13s
[INFO] running `Command { std: "docker" "inspect" "512d08fc60abe150333331d513f2a2b2b68c3f97a307ed4890a69efdc6710aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "512d08fc60abe150333331d513f2a2b2b68c3f97a307ed4890a69efdc6710aad", kill_on_drop: false }`
[INFO] [stdout] 512d08fc60abe150333331d513f2a2b2b68c3f97a307ed4890a69efdc6710aad