[INFO] updating cached repository https://github.com/PaulRaUnite/RME
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/PaulRaUnite/RME
[INFO] [stderr]    5c12cbc..9510196  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9510196a567f5234a1fa037f874ef3cca10d3955
[INFO] checking PaulRaUnite/RME against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69741
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPaulRaUnite%2FRME" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PaulRaUnite/RME on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/PaulRaUnite/RME
[INFO] finished tweaking git repo https://github.com/PaulRaUnite/RME
[INFO] tweaked toml for git repo https://github.com/PaulRaUnite/RME written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/PaulRaUnite/RME already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "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] d32ba6624efdf29d325b0530fd2cab6703d2097f398365e6ccd1d065296c047f
[INFO] running `"docker" "start" "-a" "d32ba6624efdf29d325b0530fd2cab6703d2097f398365e6ccd1d065296c047f"`
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking rme v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]   --> src/urm.rs:47:23
[INFO] [stderr]    |
[INFO] [stderr] 47 | use std::fmt::{Debug, Error, Formatter};
[INFO] [stderr]    |                       ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]   --> src/urm.rs:47:23
[INFO] [stderr]    |
[INFO] [stderr] 47 | use std::fmt::{Debug, Error, Formatter};
[INFO] [stderr]    |                       ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Memory`
[INFO] [stderr]   --> src/urm.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub enum Memory {
[INFO] [stderr]    |          ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_linear`
[INFO] [stderr]   --> src/urm.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn new_linear(size: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_sparse`
[INFO] [stderr]   --> src/urm.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn new_sparse<'a>(active_registers: impl IntoIterator<Item = &'a usize>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/urm.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn new<'a>(active_registers: impl IntoIterator<Item = &'a usize>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Memory`
[INFO] [stderr]   --> src/urm.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub enum Memory {
[INFO] [stderr]    |          ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_linear`
[INFO] [stderr]   --> src/urm.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn new_linear(size: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_sparse`
[INFO] [stderr]   --> src/urm.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn new_sparse<'a>(active_registers: impl IntoIterator<Item = &'a usize>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/urm.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn new<'a>(active_registers: impl IntoIterator<Item = &'a usize>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.31s
[INFO] running `"docker" "inspect" "d32ba6624efdf29d325b0530fd2cab6703d2097f398365e6ccd1d065296c047f"`
[INFO] running `"docker" "rm" "-f" "d32ba6624efdf29d325b0530fd2cab6703d2097f398365e6ccd1d065296c047f"`
[INFO] [stdout] d32ba6624efdf29d325b0530fd2cab6703d2097f398365e6ccd1d065296c047f