[INFO] fetching crate just_linked 0.1.0...
[INFO] testing just_linked-0.1.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate just_linked 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate just_linked 0.1.0
[INFO] finished tweaking crates.io crate just_linked 0.1.0
[INFO] tweaked toml for crates.io crate just_linked 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate just_linked 0.1.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cc1c23421b3e9d052a17d48455d88c2f8797bdfe125f3f1ddf27f8a7cf009ec
[INFO] running `Command { std: "docker" "start" "-a" "7cc1c23421b3e9d052a17d48455d88c2f8797bdfe125f3f1ddf27f8a7cf009ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cc1c23421b3e9d052a17d48455d88c2f8797bdfe125f3f1ddf27f8a7cf009ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cc1c23421b3e9d052a17d48455d88c2f8797bdfe125f3f1ddf27f8a7cf009ec", kill_on_drop: false }`
[INFO] [stdout] 7cc1c23421b3e9d052a17d48455d88c2f8797bdfe125f3f1ddf27f8a7cf009ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 962756bcbcc60d98729aa0921202cf591fdc477806e2725ff5e7b78bd8f91910
[INFO] running `Command { std: "docker" "start" "-a" "962756bcbcc60d98729aa0921202cf591fdc477806e2725ff5e7b78bd8f91910", kill_on_drop: false }`
[INFO] [stderr]    Compiling just_linked v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:149:29
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 if let Some(mut next) = current_next_ref {
[INFO] [stdout]     |                             ----^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "962756bcbcc60d98729aa0921202cf591fdc477806e2725ff5e7b78bd8f91910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "962756bcbcc60d98729aa0921202cf591fdc477806e2725ff5e7b78bd8f91910", kill_on_drop: false }`
[INFO] [stdout] 962756bcbcc60d98729aa0921202cf591fdc477806e2725ff5e7b78bd8f91910
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7435dde79459a3627c890a7af5e0401f04fac0a7792a4f4c4e54b3a931dd48d
[INFO] running `Command { std: "docker" "start" "-a" "b7435dde79459a3627c890a7af5e0401f04fac0a7792a4f4c4e54b3a931dd48d", kill_on_drop: false }`
[INFO] [stderr]    Compiling just_linked v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:149:29
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 if let Some(mut next) = current_next_ref {
[INFO] [stdout]     |                             ----^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:149:29
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 if let Some(mut next) = current_next_ref {
[INFO] [stdout]     |                             ----^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "b7435dde79459a3627c890a7af5e0401f04fac0a7792a4f4c4e54b3a931dd48d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7435dde79459a3627c890a7af5e0401f04fac0a7792a4f4c4e54b3a931dd48d", kill_on_drop: false }`
[INFO] [stdout] b7435dde79459a3627c890a7af5e0401f04fac0a7792a4f4c4e54b3a931dd48d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db66de321662526ae97ef3c9a401eb1d7c5afef24cbe283f72b8f4d98f31a8f1
[INFO] running `Command { std: "docker" "start" "-a" "db66de321662526ae97ef3c9a401eb1d7c5afef24cbe283f72b8f4d98f31a8f1", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:149:29
[INFO] [stderr]     |
[INFO] [stderr] 149 |                 if let Some(mut next) = current_next_ref {
[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: `just_linked` (lib) generated 1 warning (run `cargo fix --lib -p just_linked` to apply 1 suggestion)
[INFO] [stderr] warning: `just_linked` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/just_linked-96593c229444d9d8)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-c7533475b906723d)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test lur_linked_remove_last ... ok
[INFO] [stdout] test lur_linked_push_remove ... ok
[INFO] [stdout] test test_into_iter ... ok
[INFO] [stdout] test test_iter_mut ... ok
[INFO] [stdout] test test_iter ... ok
[INFO] [stdout] test lur_linked_move_front ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests just_linked
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db66de321662526ae97ef3c9a401eb1d7c5afef24cbe283f72b8f4d98f31a8f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db66de321662526ae97ef3c9a401eb1d7c5afef24cbe283f72b8f4d98f31a8f1", kill_on_drop: false }`
[INFO] [stdout] db66de321662526ae97ef3c9a401eb1d7c5afef24cbe283f72b8f4d98f31a8f1