[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] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbodagovsky%2FLFUcache: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[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] checking bodagovsky/LFUcache against try#5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db for pr-143717
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbodagovsky%2FLFUcache" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[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-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bodagovsky/LFUcache on toolchain 5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bodagovsky/LFUcache already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25c71d8e6100b1d157a544dc566193bce82c8c938c84230c95a2dde6d68654d9
[INFO] running `Command { std: "docker" "start" "-a" "25c71d8e6100b1d157a544dc566193bce82c8c938c84230c95a2dde6d68654d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25c71d8e6100b1d157a544dc566193bce82c8c938c84230c95a2dde6d68654d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25c71d8e6100b1d157a544dc566193bce82c8c938c84230c95a2dde6d68654d9", kill_on_drop: false }`
[INFO] [stdout] 25c71d8e6100b1d157a544dc566193bce82c8c938c84230c95a2dde6d68654d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+5ef65a4ed75279dc1b7a26cedc27293a9f4ca8db" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd1fddcfc0be53077faf17b919a2998f52a5e7e2eccebbd33be5ac61a50235a8
[INFO] running `Command { std: "docker" "start" "-a" "dd1fddcfc0be53077faf17b919a2998f52a5e7e2eccebbd33be5ac61a50235a8", kill_on_drop: false }`
[INFO] [stderr]     Checking 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: 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 `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: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let _ = write!(f, "length: {}\n", self.len);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |             let _ = write!(f, "capacity: {}\n", self.cap);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 let _ = write!(
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `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: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let _ = write!(f, "length: {}\n", self.len);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |             let _ = write!(f, "capacity: {}\n", self.cap);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 let _ = write!(
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "dd1fddcfc0be53077faf17b919a2998f52a5e7e2eccebbd33be5ac61a50235a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd1fddcfc0be53077faf17b919a2998f52a5e7e2eccebbd33be5ac61a50235a8", kill_on_drop: false }`
[INFO] [stdout] dd1fddcfc0be53077faf17b919a2998f52a5e7e2eccebbd33be5ac61a50235a8
