[INFO] updating cached repository https://github.com/charliethomson/linkedlrst
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fca5202f305a3f5f86eda6cd49a59257c179bf33
[INFO] testing charliethomson/linkedlrst against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharliethomson%2Flinkedlrst" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/charliethomson/linkedlrst on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/charliethomson/linkedlrst
[INFO] finished tweaking git repo https://github.com/charliethomson/linkedlrst
[INFO] tweaked toml for git repo https://github.com/charliethomson/linkedlrst written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/charliethomson/linkedlrst already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] cf73f2b2766747c9b0df8c03d3452ca203fa8c89554cb2b99a4ba880533c4ce3
[INFO] running `"docker" "start" "-a" "cf73f2b2766747c9b0df8c03d3452ca203fa8c89554cb2b99a4ba880533c4ce3"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling typename_derive v0.1.3
[INFO] [stderr]    Compiling typename v0.1.1
[INFO] [stderr]    Compiling linkedlist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `dealloc`
[INFO] [stderr]  --> src/main.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 |     alloc::{alloc, dealloc, Layout},
[INFO] [stderr]   |                    ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `one`
[INFO] [stderr]   --> src/main.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut one = Node::new(10).with_next(Some(two.ptr));
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_one`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let mut two = Node::new(15);
[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/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut one = Node::new(10).with_next(Some(two.ptr));
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.32s
[INFO] running `"docker" "inspect" "cf73f2b2766747c9b0df8c03d3452ca203fa8c89554cb2b99a4ba880533c4ce3"`
[INFO] running `"docker" "rm" "-f" "cf73f2b2766747c9b0df8c03d3452ca203fa8c89554cb2b99a4ba880533c4ce3"`
[INFO] [stdout] cf73f2b2766747c9b0df8c03d3452ca203fa8c89554cb2b99a4ba880533c4ce3
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f47e76ce69fe89b1eb96703365dd0d2b71353b2f8554b466b4cff31d9f316360
[INFO] running `"docker" "start" "-a" "f47e76ce69fe89b1eb96703365dd0d2b71353b2f8554b466b4cff31d9f316360"`
[INFO] [stderr]    Compiling linkedlist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `dealloc`
[INFO] [stderr]  --> src/main.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 |     alloc::{alloc, dealloc, Layout},
[INFO] [stderr]   |                    ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `one`
[INFO] [stderr]   --> src/main.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut one = Node::new(10).with_next(Some(two.ptr));
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_one`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let mut two = Node::new(15);
[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/main.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut one = Node::new(10).with_next(Some(two.ptr));
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "f47e76ce69fe89b1eb96703365dd0d2b71353b2f8554b466b4cff31d9f316360"`
[INFO] running `"docker" "rm" "-f" "f47e76ce69fe89b1eb96703365dd0d2b71353b2f8554b466b4cff31d9f316360"`
[INFO] [stdout] f47e76ce69fe89b1eb96703365dd0d2b71353b2f8554b466b4cff31d9f316360
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 3c81c526634b418c4375629ff4093517de892ecb1c6cb7c0c9e439f24b0ed6ce
[INFO] running `"docker" "start" "-a" "3c81c526634b418c4375629ff4093517de892ecb1c6cb7c0c9e439f24b0ed6ce"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/linkedlist-c976b600cb43fefd
[INFO] [stdout] 
[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 `"docker" "inspect" "3c81c526634b418c4375629ff4093517de892ecb1c6cb7c0c9e439f24b0ed6ce"`
[INFO] running `"docker" "rm" "-f" "3c81c526634b418c4375629ff4093517de892ecb1c6cb7c0c9e439f24b0ed6ce"`
[INFO] [stdout] 3c81c526634b418c4375629ff4093517de892ecb1c6cb7c0c9e439f24b0ed6ce