[INFO] cloning repository https://github.com/bodagovsky/LFUcache
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bodagovsky/LFUcache" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbodagovsky%2FLFUcache", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbodagovsky%2FLFUcache'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c30840f7492a657be08f520ac7fa707dcecb6d72
[INFO] testing bodagovsky/LFUcache against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbodagovsky%2FLFUcache" "/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/bodagovsky/LFUcache on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bodagovsky/LFUcache
[INFO] finished tweaking git repo https://github.com/bodagovsky/LFUcache
[INFO] tweaked toml for git repo https://github.com/bodagovsky/LFUcache written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/bodagovsky/LFUcache already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--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-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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2326b0a518554bbaa1f85d00ab231740a2fa92b2c207d5899ba2a87d3b7e9c9
[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" "b2326b0a518554bbaa1f85d00ab231740a2fa92b2c207d5899ba2a87d3b7e9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2326b0a518554bbaa1f85d00ab231740a2fa92b2c207d5899ba2a87d3b7e9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2326b0a518554bbaa1f85d00ab231740a2fa92b2c207d5899ba2a87d3b7e9c9", kill_on_drop: false }`
[INFO] [stdout] b2326b0a518554bbaa1f85d00ab231740a2fa92b2c207d5899ba2a87d3b7e9c9
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e06db31131c71046a50e7f1c6aec6a3935f3f3e5aa6374c687a7bdf3c70242d6
[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" "e06db31131c71046a50e7f1c6aec6a3935f3f3e5aa6374c687a7bdf3c70242d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling lfu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: module `LFU` should have a snake case name
[INFO] [stdout]  --> src/cache.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod LFU {
[INFO] [stdout]   |         ^^^ help: convert the identifier to snake case: `lfu`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/cache.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |             write!(f, "length: {}\n", self.len);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/cache.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             write!(f, "capacity: {}\n", self.cap);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/cache.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 | /                 write!(
[INFO] [stdout] 53 | |                     f,
[INFO] [stdout] 54 | |                     "[ key: {}, value: {} ]",
[INFO] [stdout] 55 | |                     ch.borrow().key,
[INFO] [stdout] 56 | |                     ch.borrow().val
[INFO] [stdout] 57 | |                 );
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "e06db31131c71046a50e7f1c6aec6a3935f3f3e5aa6374c687a7bdf3c70242d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e06db31131c71046a50e7f1c6aec6a3935f3f3e5aa6374c687a7bdf3c70242d6", kill_on_drop: false }`
[INFO] [stdout] e06db31131c71046a50e7f1c6aec6a3935f3f3e5aa6374c687a7bdf3c70242d6
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2474bc838f8b91fc168d7d663a8571b9fa0d48c0f1ebadb58f357f1b405a0383
[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" "2474bc838f8b91fc168d7d663a8571b9fa0d48c0f1ebadb58f357f1b405a0383", kill_on_drop: false }`
[INFO] [stderr]    Compiling lfu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: module `LFU` should have a snake case name
[INFO] [stdout]  --> src/cache.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod LFU {
[INFO] [stdout]   |         ^^^ help: convert the identifier to snake case: `lfu`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/cache.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |             write!(f, "length: {}\n", self.len);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/cache.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             write!(f, "capacity: {}\n", self.cap);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/cache.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 | /                 write!(
[INFO] [stdout] 53 | |                     f,
[INFO] [stdout] 54 | |                     "[ key: {}, value: {} ]",
[INFO] [stdout] 55 | |                     ch.borrow().key,
[INFO] [stdout] 56 | |                     ch.borrow().val
[INFO] [stdout] 57 | |                 );
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "2474bc838f8b91fc168d7d663a8571b9fa0d48c0f1ebadb58f357f1b405a0383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2474bc838f8b91fc168d7d663a8571b9fa0d48c0f1ebadb58f357f1b405a0383", kill_on_drop: false }`
[INFO] [stdout] 2474bc838f8b91fc168d7d663a8571b9fa0d48c0f1ebadb58f357f1b405a0383
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0e96b461ce31e0e7fc280f3d93c1d1211060118f5db3c0c1fd9efd6d94e314dc
[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" "0e96b461ce31e0e7fc280f3d93c1d1211060118f5db3c0c1fd9efd6d94e314dc", kill_on_drop: false }`
[INFO] [stderr] warning: module `LFU` should have a snake case name
[INFO] [stderr]  --> src/cache.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod LFU {
[INFO] [stderr]   |         ^^^ help: convert the identifier to snake case: `lfu`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/cache.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |             write!(f, "length: {}\n", self.len);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/cache.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |             write!(f, "capacity: {}\n", self.cap);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/cache.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 | /                 write!(
[INFO] [stderr] 53 | |                     f,
[INFO] [stderr] 54 | |                     "[ key: {}, value: {} ]",
[INFO] [stderr] 55 | |                     ch.borrow().key,
[INFO] [stderr] 56 | |                     ch.borrow().val
[INFO] [stderr] 57 | |                 );
[INFO] [stderr]    | |__________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lfu-0f124683b2a9ffec
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0e96b461ce31e0e7fc280f3d93c1d1211060118f5db3c0c1fd9efd6d94e314dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e96b461ce31e0e7fc280f3d93c1d1211060118f5db3c0c1fd9efd6d94e314dc", kill_on_drop: false }`
[INFO] [stdout] 0e96b461ce31e0e7fc280f3d93c1d1211060118f5db3c0c1fd9efd6d94e314dc
