[INFO] cloning repository https://github.com/AtsukiYokota/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AtsukiYokota/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAtsukiYokota%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAtsukiYokota%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ab9c9c44ecc4c9bfea2ff1f2ba3c4178b350ab5
[INFO] checking AtsukiYokota/rust_practice against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAtsukiYokota%2Frust_practice" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AtsukiYokota/rust_practice on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AtsukiYokota/rust_practice
[INFO] finished tweaking git repo https://github.com/AtsukiYokota/rust_practice
[INFO] tweaked toml for git repo https://github.com/AtsukiYokota/rust_practice written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/AtsukiYokota/rust_practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8797d6a2662cd8d4774d7b572395864e6108af23c89b985b253076a50880525e
[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" "8797d6a2662cd8d4774d7b572395864e6108af23c89b985b253076a50880525e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8797d6a2662cd8d4774d7b572395864e6108af23c89b985b253076a50880525e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8797d6a2662cd8d4774d7b572395864e6108af23c89b985b253076a50880525e", kill_on_drop: false }`
[INFO] [stdout] 8797d6a2662cd8d4774d7b572395864e6108af23c89b985b253076a50880525e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68382cbedfbe353e19092d5dd2fa001ac4c138383ed24f505e25deaa5e2e091f
[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" "68382cbedfbe353e19092d5dd2fa001ac4c138383ed24f505e25deaa5e2e091f", kill_on_drop: false }`
[INFO] [stderr]     Checking parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:526:25
[INFO] [stdout]     |
[INFO] [stdout] 526 |         let (e, loc): (&StdError, Loc) = match self {
[INFO] [stdout]     |                         ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:526:25
[INFO] [stdout]     |
[INFO] [stdout] 526 |         let (e, loc): (&StdError, Loc) = match self {
[INFO] [stdout]     |                         ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `num`
[INFO] [stdout]    --> src/main.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn num(n: u64, loc: Loc) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnexpectedToken`
[INFO] [stdout]    --> src/main.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 272 |     UnexpectedToken(Token),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `num`
[INFO] [stdout]    --> src/main.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn num(n: u64, loc: Loc) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnexpectedToken`
[INFO] [stdout]    --> src/main.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 272 |     UnexpectedToken(Token),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "68382cbedfbe353e19092d5dd2fa001ac4c138383ed24f505e25deaa5e2e091f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68382cbedfbe353e19092d5dd2fa001ac4c138383ed24f505e25deaa5e2e091f", kill_on_drop: false }`
[INFO] [stdout] 68382cbedfbe353e19092d5dd2fa001ac4c138383ed24f505e25deaa5e2e091f