[INFO] cloning repository https://github.com/aki237/rl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aki237/rl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faki237%2Frl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faki237%2Frl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] abb942b3547b2bfb883044fc6fb786dff07ed56e
[INFO] checking aki237/rl against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faki237%2Frl" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aki237/rl on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aki237/rl
[INFO] finished tweaking git repo https://github.com/aki237/rl
[INFO] tweaked toml for git repo https://github.com/aki237/rl written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/aki237/rl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a665c9f7f52e14bb3e86fdbc9f50d489db652dc141eb971a89a31694e866e13
[INFO] running `Command { std: "docker" "start" "-a" "1a665c9f7f52e14bb3e86fdbc9f50d489db652dc141eb971a89a31694e866e13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a665c9f7f52e14bb3e86fdbc9f50d489db652dc141eb971a89a31694e866e13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a665c9f7f52e14bb3e86fdbc9f50d489db652dc141eb971a89a31694e866e13", kill_on_drop: false }`
[INFO] [stdout] 1a665c9f7f52e14bb3e86fdbc9f50d489db652dc141eb971a89a31694e866e13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e97f7fee2b62c80894a12a87819b382e89892388fa5f18146015a3d2e66b97b1
[INFO] running `Command { std: "docker" "start" "-a" "e97f7fee2b62c80894a12a87819b382e89892388fa5f18146015a3d2e66b97b1", kill_on_drop: false }`
[INFO] [stderr]     Checking rl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `source`
[INFO] [stdout]   --> src/rl/tokenizer.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     source: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/rl/tokenizer.rs:128:17
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 &temp.push(c);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/rl/tokenizer.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |             &self.add_ident_token(&temp);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/rl/tokenizer.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |             &self.add_delim(c);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `source`
[INFO] [stdout]   --> src/rl/tokenizer.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     source: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/rl/tokenizer.rs:128:17
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 &temp.push(c);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/rl/tokenizer.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |             &self.add_ident_token(&temp);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/rl/tokenizer.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |             &self.add_delim(c);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "e97f7fee2b62c80894a12a87819b382e89892388fa5f18146015a3d2e66b97b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97f7fee2b62c80894a12a87819b382e89892388fa5f18146015a3d2e66b97b1", kill_on_drop: false }`
[INFO] [stdout] e97f7fee2b62c80894a12a87819b382e89892388fa5f18146015a3d2e66b97b1