[INFO] cloning repository https://github.com/Alenius/rson
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Alenius/rson" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlenius%2Frson", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlenius%2Frson'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6823b83f57b18e063dd7e425a044a7b393c966b9
[INFO] checking Alenius/rson against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlenius%2Frson" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Alenius/rson on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Alenius/rson
[INFO] finished tweaking git repo https://github.com/Alenius/rson
[INFO] tweaked toml for git repo https://github.com/Alenius/rson written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Alenius/rson already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51a756739874682604d5b4ef3c8288b770593722e46f9e9321265d91cebc53af
[INFO] running `Command { std: "docker" "start" "-a" "51a756739874682604d5b4ef3c8288b770593722e46f9e9321265d91cebc53af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51a756739874682604d5b4ef3c8288b770593722e46f9e9321265d91cebc53af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51a756739874682604d5b4ef3c8288b770593722e46f9e9321265d91cebc53af", kill_on_drop: false }`
[INFO] [stdout] 51a756739874682604d5b4ef3c8288b770593722e46f9e9321265d91cebc53af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61fb7173b9bcbbde97fd2eb8a837fc6642f44dcef699f3b2cff35ed5b49e4988
[INFO] running `Command { std: "docker" "start" "-a" "61fb7173b9bcbbde97fd2eb8a837fc6642f44dcef699f3b2cff35ed5b49e4988", kill_on_drop: false }`
[INFO] [stderr]     Checking rson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/bin/test.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ fs, env };
[INFO] [stdout]   |                ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `types::JsonObject`
[INFO] [stdout]  --> src/bin/test.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rson::{types::JsonObject, parse};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/bin/test.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ fs, env };
[INFO] [stdout]   |                ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `types::JsonObject`
[INFO] [stdout]  --> src/bin/test.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rson::{types::JsonObject, parse};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "61fb7173b9bcbbde97fd2eb8a837fc6642f44dcef699f3b2cff35ed5b49e4988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61fb7173b9bcbbde97fd2eb8a837fc6642f44dcef699f3b2cff35ed5b49e4988", kill_on_drop: false }`
[INFO] [stdout] 61fb7173b9bcbbde97fd2eb8a837fc6642f44dcef699f3b2cff35ed5b49e4988