[INFO] updating cached repository https://github.com/ElPicador/rust_db
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7841d44fdd358d344d2bc69055860328fb65f064
[INFO] checking ElPicador/rust_db against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FElPicador%2Frust_db" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ElPicador/rust_db on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ElPicador/rust_db
[INFO] finished tweaking git repo https://github.com/ElPicador/rust_db
[INFO] tweaked toml for git repo https://github.com/ElPicador/rust_db written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ElPicador/rust_db already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bab3002b8c7d507b8d4dff1efaf3db655915022849269983b96163debbd991b1
[INFO] running `Command { std: "docker" "start" "-a" "bab3002b8c7d507b8d4dff1efaf3db655915022849269983b96163debbd991b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bab3002b8c7d507b8d4dff1efaf3db655915022849269983b96163debbd991b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bab3002b8c7d507b8d4dff1efaf3db655915022849269983b96163debbd991b1", kill_on_drop: false }`
[INFO] [stdout] bab3002b8c7d507b8d4dff1efaf3db655915022849269983b96163debbd991b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0899520638200a50eb92d5dee3388fe848e316069acefb16c59faa276d3cda0
[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" "a0899520638200a50eb92d5dee3388fe848e316069acefb16c59faa276d3cda0", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking rust_db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `read` found for struct `std::io::BufReader<u8>` in the current scope
[INFO] [stdout]   --> src/row.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |           input.read(&id_buffer);
[INFO] [stdout]    |                 ^^^^ method not found in `std::io::BufReader<u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method `read` exists but the following trait bounds were not satisfied:
[INFO] [stdout]            `u8: std::io::Read`
[INFO] [stdout]            which is required by `std::io::BufReader<u8>: std::io::Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read` found for struct `std::io::BufReader<u8>` in the current scope
[INFO] [stdout]   --> src/row.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |           input.read(&id_buffer);
[INFO] [stdout]    |                 ^^^^ method not found in `std::io::BufReader<u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method `read` exists but the following trait bounds were not satisfied:
[INFO] [stdout]            `u8: std::io::Read`
[INFO] [stdout]            which is required by `std::io::BufReader<u8>: std::io::Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read` found for struct `std::io::BufReader<u8>` in the current scope
[INFO] [stdout]   --> src/row.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |           input.read(&username_len);
[INFO] [stdout]    |                 ^^^^ method not found in `std::io::BufReader<u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method `read` exists but the following trait bounds were not satisfied:
[INFO] [stdout]            `u8: std::io::Read`
[INFO] [stdout]            which is required by `std::io::BufReader<u8>: std::io::Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read` found for struct `std::io::BufReader<u8>` in the current scope
[INFO] [stdout]   --> src/row.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |           input.read(&username_len);
[INFO] [stdout]    |                 ^^^^ method not found in `std::io::BufReader<u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method `read` exists but the following trait bounds were not satisfied:
[INFO] [stdout]            `u8: std::io::Read`
[INFO] [stdout]            which is required by `std::io::BufReader<u8>: std::io::Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/row.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/row.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_db`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a0899520638200a50eb92d5dee3388fe848e316069acefb16c59faa276d3cda0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0899520638200a50eb92d5dee3388fe848e316069acefb16c59faa276d3cda0", kill_on_drop: false }`
[INFO] [stdout] a0899520638200a50eb92d5dee3388fe848e316069acefb16c59faa276d3cda0