[INFO] cloning repository https://github.com/stephenjayakar/linked_list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stephenjayakar/linked_list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenjayakar%2Flinked_list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenjayakar%2Flinked_list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3caa5b2c9c0955f8fa2bc2ebb541acf6056bb5f
[INFO] testing stephenjayakar/linked_list against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenjayakar%2Flinked_list" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stephenjayakar/linked_list on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stephenjayakar/linked_list
[INFO] finished tweaking git repo https://github.com/stephenjayakar/linked_list
[INFO] tweaked toml for git repo https://github.com/stephenjayakar/linked_list written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/stephenjayakar/linked_list already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6a27b155496e41dd89cd4f88db8fefd93c90fee1ece082019953c892daa326b
[INFO] running `Command { std: "docker" "start" "-a" "c6a27b155496e41dd89cd4f88db8fefd93c90fee1ece082019953c892daa326b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6a27b155496e41dd89cd4f88db8fefd93c90fee1ece082019953c892daa326b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a27b155496e41dd89cd4f88db8fefd93c90fee1ece082019953c892daa326b", kill_on_drop: false }`
[INFO] [stdout] c6a27b155496e41dd89cd4f88db8fefd93c90fee1ece082019953c892daa326b
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c799056f01ea1cdce27cd7eb262c1293f362105669c9eea2fc12b41696373ad
[INFO] running `Command { std: "docker" "start" "-a" "8c799056f01ea1cdce27cd7eb262c1293f362105669c9eea2fc12b41696373ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling stephen_ll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]    --> src/linked_list.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 | use test::Bencher;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Termination`
[INFO] [stdout]    --> src/linked_list.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | use std::process::Termination;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `N`
[INFO] [stdout]    --> src/linked_list.rs:169:1
[INFO] [stdout]     |
[INFO] [stdout] 169 | const N: i32 = 10000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "8c799056f01ea1cdce27cd7eb262c1293f362105669c9eea2fc12b41696373ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c799056f01ea1cdce27cd7eb262c1293f362105669c9eea2fc12b41696373ad", kill_on_drop: false }`
[INFO] [stdout] 8c799056f01ea1cdce27cd7eb262c1293f362105669c9eea2fc12b41696373ad
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b2febcbaa75bdc4500b9530c17fac66d9ead9d253177f8244d59213fc3a6225
[INFO] running `Command { std: "docker" "start" "-a" "1b2febcbaa75bdc4500b9530c17fac66d9ead9d253177f8244d59213fc3a6225", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]    --> src/linked_list.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 | use test::Bencher;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stephen_ll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::process::Termination`
[INFO] [stdout]    --> src/linked_list.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | use std::process::Termination;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `N`
[INFO] [stdout]    --> src/linked_list.rs:169:1
[INFO] [stdout]     |
[INFO] [stdout] 169 | const N: i32 = 10000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "1b2febcbaa75bdc4500b9530c17fac66d9ead9d253177f8244d59213fc3a6225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b2febcbaa75bdc4500b9530c17fac66d9ead9d253177f8244d59213fc3a6225", kill_on_drop: false }`
[INFO] [stdout] 1b2febcbaa75bdc4500b9530c17fac66d9ead9d253177f8244d59213fc3a6225
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bb003ae729daa8b60713e742ee5e0d36e7327a5c4279e54eb74f0b4b3eb915c8
[INFO] running `Command { std: "docker" "start" "-a" "bb003ae729daa8b60713e742ee5e0d36e7327a5c4279e54eb74f0b4b3eb915c8", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `test::Bencher`
[INFO] [stderr]    --> src/linked_list.rs:167:5
[INFO] [stderr]     |
[INFO] [stderr] 167 | use test::Bencher;
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::Termination`
[INFO] [stderr]    --> src/linked_list.rs:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 | use std::process::Termination;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `N`
[INFO] [stderr]    --> src/linked_list.rs:169:1
[INFO] [stderr]     |
[INFO] [stderr] 169 | const N: i32 = 10000;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stephen_ll-29e1c98140b402ed)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test linked_list::tests::head_none_invariant ... ok
[INFO] [stdout] test linked_list::tests::print_test ... ok
[INFO] [stdout] test linked_list::tests::sanity_pop ... ok
[INFO] [stdout] test linked_list::tests::sanity_contains ... ok
[INFO] [stdout] test linked_list::contains ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stephen_ll
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/linked_list.rs - linked_list::LinkedList<T>::push_front (line 30) ... ok
[INFO] [stdout] test src/linked_list.rs - linked_list::LinkedList<T>::pop_front (line 47) ... ok
[INFO] [stdout] test src/linked_list.rs - linked_list::LinkedList<T> (line 97) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bb003ae729daa8b60713e742ee5e0d36e7327a5c4279e54eb74f0b4b3eb915c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb003ae729daa8b60713e742ee5e0d36e7327a5c4279e54eb74f0b4b3eb915c8", kill_on_drop: false }`
[INFO] [stdout] bb003ae729daa8b60713e742ee5e0d36e7327a5c4279e54eb74f0b4b3eb915c8