[INFO] fetching crate base64s 0.1.0...
[INFO] checking base64s-0.1.0 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate base64s 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate base64s 0.1.0 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate base64s 0.1.0
[INFO] finished tweaking crates.io crate base64s 0.1.0
[INFO] tweaked toml for crates.io crate base64s 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] faf6b9a68d431915227d7c14b18bada8a8e6a67c84a63af9af84194b9a9e4bae
[INFO] running `"docker" "start" "-a" "faf6b9a68d431915227d7c14b18bada8a8e6a67c84a63af9af84194b9a9e4bae"`
[INFO] [stderr]     Checking base64s v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `binary_vec_vec`
[INFO] [stderr]    --> src/bases.rs:193:17
[INFO] [stderr]     |
[INFO] [stderr] 193 |         let mut binary_vec_vec: Vec<Vec<i32>> = Vec::new();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_binary_vec_vec`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |         for i in pad_number{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/bases.rs:210:17
[INFO] [stderr]     |
[INFO] [stderr] 210 |             Err(err) => {
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `binary_vec_vec`
[INFO] [stderr]    --> src/bases.rs:222:13
[INFO] [stderr]     |
[INFO] [stderr] 222 |         let binary_vec_vec: Vec<Vec<i32>> = Vec::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_binary_vec_vec`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:231:13
[INFO] [stderr]     |
[INFO] [stderr] 231 |         for i in pad_number{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/bases.rs:239:17
[INFO] [stderr]     |
[INFO] [stderr] 239 |             Err(err) => {
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:282:13
[INFO] [stderr]     |
[INFO] [stderr] 282 |         for i in 0..number{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:309:17
[INFO] [stderr]     |
[INFO] [stderr] 309 |             for i in 0..24 - remainder{
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:372:13
[INFO] [stderr]     |
[INFO] [stderr] 372 |         for i in 0..pad_number{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:375:13
[INFO] [stderr]     |
[INFO] [stderr] 375 |         for i in 0..pad_number{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bases.rs:191:13
[INFO] [stderr]     |
[INFO] [stderr] 191 |         let mut char_vec = self.contrary_mapping(value, false);
[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/bases.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |         let mut binary_vec_vec: Vec<Vec<i32>> = Vec::new();
[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/bases.rs:220:13
[INFO] [stderr]     |
[INFO] [stderr] 220 |         let mut char_vec = self.contrary_mapping(value, true);
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `binary_vec_vec`
[INFO] [stderr]    --> src/bases.rs:193:17
[INFO] [stderr]     |
[INFO] [stderr] 193 |         let mut binary_vec_vec: Vec<Vec<i32>> = Vec::new();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_binary_vec_vec`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |         for i in pad_number{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/bases.rs:210:17
[INFO] [stderr]     |
[INFO] [stderr] 210 |             Err(err) => {
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `binary_vec_vec`
[INFO] [stderr]    --> src/bases.rs:222:13
[INFO] [stderr]     |
[INFO] [stderr] 222 |         let binary_vec_vec: Vec<Vec<i32>> = Vec::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_binary_vec_vec`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:231:13
[INFO] [stderr]     |
[INFO] [stderr] 231 |         for i in pad_number{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/bases.rs:239:17
[INFO] [stderr]     |
[INFO] [stderr] 239 |             Err(err) => {
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:282:13
[INFO] [stderr]     |
[INFO] [stderr] 282 |         for i in 0..number{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:309:17
[INFO] [stderr]     |
[INFO] [stderr] 309 |             for i in 0..24 - remainder{
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:372:13
[INFO] [stderr]     |
[INFO] [stderr] 372 |         for i in 0..pad_number{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/bases.rs:375:13
[INFO] [stderr]     |
[INFO] [stderr] 375 |         for i in 0..pad_number{
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bases.rs:191:13
[INFO] [stderr]     |
[INFO] [stderr] 191 |         let mut char_vec = self.contrary_mapping(value, false);
[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/bases.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |         let mut binary_vec_vec: Vec<Vec<i32>> = Vec::new();
[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/bases.rs:220:13
[INFO] [stderr]     |
[INFO] [stderr] 220 |         let mut char_vec = self.contrary_mapping(value, true);
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "faf6b9a68d431915227d7c14b18bada8a8e6a67c84a63af9af84194b9a9e4bae"`
[INFO] running `"docker" "rm" "-f" "faf6b9a68d431915227d7c14b18bada8a8e6a67c84a63af9af84194b9a9e4bae"`
[INFO] [stdout] faf6b9a68d431915227d7c14b18bada8a8e6a67c84a63af9af84194b9a9e4bae