[INFO] cloning repository https://github.com/SamSmith7/kvs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SamSmith7/kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamSmith7%2Fkvs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamSmith7%2Fkvs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97458140709b331591d975eaf7aff442ace8a41a
[INFO] testing SamSmith7/kvs against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamSmith7%2Fkvs" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SamSmith7/kvs on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SamSmith7/kvs
[INFO] finished tweaking git repo https://github.com/SamSmith7/kvs
[INFO] tweaked toml for git repo https://github.com/SamSmith7/kvs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/SamSmith7/kvs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2021-08-01" "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] aa915e0b26e746d63362bb2ea29e4796ce53c6fa13c9e0bd77d1b5b9c25be2d0
[INFO] running `Command { std: "docker" "start" "-a" "aa915e0b26e746d63362bb2ea29e4796ce53c6fa13c9e0bd77d1b5b9c25be2d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa915e0b26e746d63362bb2ea29e4796ce53c6fa13c9e0bd77d1b5b9c25be2d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa915e0b26e746d63362bb2ea29e4796ce53c6fa13c9e0bd77d1b5b9c25be2d0", kill_on_drop: false }`
[INFO] [stdout] aa915e0b26e746d63362bb2ea29e4796ce53c6fa13c9e0bd77d1b5b9c25be2d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5495b2edafbe95c80ecea945fbf3f25239c1b55cc5534df5a43ba1a84d8f88a0
[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" "5495b2edafbe95c80ecea945fbf3f25239c1b55cc5534df5a43ba1a84d8f88a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:33:32
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/kv.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufWriter`
[INFO] [stdout]  --> src/kv.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::BufWriter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `KvError`
[INFO] [stdout]  --> src/kv.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::{KvError, Result};
[INFO] [stdout]   |             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:28:41
[INFO] [stdout]    |
[INFO] [stdout] 28 |             KvError::Io(ref err) => err.description(),
[INFO] [stdout]    |                                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:29:48
[INFO] [stdout]    |
[INFO] [stdout] 29 |             KvError::Serialize(ref err) => err.description(),
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_all` found for struct `File` in the current scope
[INFO] [stdout]     --> src/kv.rs:63:21
[INFO] [stdout]      |
[INFO] [stdout] 63   |         self.handle.write_all(encoded)?;
[INFO] [stdout]      |                     ^^^^^^^^^ method not found in `File`
[INFO] [stdout]      |
[INFO] [stdout]      = help: items from traits can only be used if the trait is in scope
[INFO] [stdout]      = note: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]              `use std::io::Write;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 6 warnings 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 `kvs` due to 2 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5495b2edafbe95c80ecea945fbf3f25239c1b55cc5534df5a43ba1a84d8f88a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5495b2edafbe95c80ecea945fbf3f25239c1b55cc5534df5a43ba1a84d8f88a0", kill_on_drop: false }`
[INFO] [stdout] 5495b2edafbe95c80ecea945fbf3f25239c1b55cc5534df5a43ba1a84d8f88a0
