[INFO] crate rckit 0.1.0 is already in cache
[INFO] checking rckit-0.1.0 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate rckit 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rckit 0.1.0 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rckit 0.1.0
[INFO] finished tweaking crates.io crate rckit 0.1.0
[INFO] tweaked toml for crates.io crate rckit 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 24d4f5fcf51b57733989fd0508a6f840f6728784331f5a0018b32193450d086a
[INFO] running `"docker" "start" "-a" "24d4f5fcf51b57733989fd0508a6f840f6728784331f5a0018b32193450d086a"`
[INFO] [stderr]    Compiling redis v0.9.1
[INFO] [stderr]     Checking rckit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/cluster.rs:97:29
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let mut nodes = try!(conn.nodes());
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `master` should have an upper camel case name
[INFO] [stderr]   --> src/cluster.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     master,
[INFO] [stderr]    |     ^^^^^^ help: convert the identifier to upper camel case: `Master`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `slave` should have an upper camel case name
[INFO] [stderr]   --> src/cluster.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     slave,
[INFO] [stderr]    |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Slave`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `redis::Commands`
[INFO] [stderr]  --> src/conn.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use redis::Commands;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Role`
[INFO] [stderr]  --> src/create.rs:1:37
[INFO] [stderr]   |
[INFO] [stderr] 1 | use cluster::{Cluster, Error, Node, Role};
[INFO] [stderr]   |                                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/cluster.rs:97:29
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let mut nodes = try!(conn.nodes());
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `master` should have an upper camel case name
[INFO] [stderr]   --> src/cluster.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     master,
[INFO] [stderr]    |     ^^^^^^ help: convert the identifier to upper camel case: `Master`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `slave` should have an upper camel case name
[INFO] [stderr]   --> src/cluster.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     slave,
[INFO] [stderr]    |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Slave`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `redis::Commands`
[INFO] [stderr]  --> src/conn.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use redis::Commands;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Role`
[INFO] [stderr]  --> src/create.rs:1:37
[INFO] [stderr]   |
[INFO] [stderr] 1 | use cluster::{Cluster, Error, Node, Role};
[INFO] [stderr]   |                                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]    --> src/cluster.rs:116:17
[INFO] [stderr]     |
[INFO] [stderr] 116 |             for node in nodes {
[INFO] [stderr]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `migrate`
[INFO] [stderr]    --> src/cluster.rs:118:21
[INFO] [stderr]     |
[INFO] [stderr] 118 |                 let migrate = &slots[start..start + count];
[INFO] [stderr]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_migrate`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |         let mut master_count = clap::value_t!(sub_m.value_of("master"), usize).unwrap();
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/conn.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         for mut info in infos.into_iter() {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/conn.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 |         for mut info in info.lines() {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/conn.rs:92:21
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 let mut scope: Vec<&str> = content.split("-").collect();
[INFO] [stderr]    |                     ----^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/create.rs:148:25
[INFO] [stderr]     |
[INFO] [stderr] 148 |                     let mut key = String::from(slave.ip.clone() + ":" + &slave.port);
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]    --> src/cluster.rs:185:5
[INFO] [stderr]     |
[INFO] [stderr] 185 |     None,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]    --> src/cluster.rs:116:17
[INFO] [stderr]     |
[INFO] [stderr] 116 |             for node in nodes {
[INFO] [stderr]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `migrate`
[INFO] [stderr]    --> src/cluster.rs:118:21
[INFO] [stderr]     |
[INFO] [stderr] 118 |                 let migrate = &slots[start..start + count];
[INFO] [stderr]     |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_migrate`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |         let mut master_count = clap::value_t!(sub_m.value_of("master"), usize).unwrap();
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/conn.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         for mut info in infos.into_iter() {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/conn.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 |         for mut info in info.lines() {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/conn.rs:92:21
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 let mut scope: Vec<&str> = content.split("-").collect();
[INFO] [stderr]    |                     ----^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/create.rs:148:25
[INFO] [stderr]     |
[INFO] [stderr] 148 |                     let mut key = String::from(slave.ip.clone() + ":" + &slave.port);
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]    --> src/cluster.rs:185:5
[INFO] [stderr]     |
[INFO] [stderr] 185 |     None,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.76s
[INFO] running `"docker" "inspect" "24d4f5fcf51b57733989fd0508a6f840f6728784331f5a0018b32193450d086a"`
[INFO] running `"docker" "rm" "-f" "24d4f5fcf51b57733989fd0508a6f840f6728784331f5a0018b32193450d086a"`
[INFO] [stdout] 24d4f5fcf51b57733989fd0508a6f840f6728784331f5a0018b32193450d086a
