[INFO] fetching crate rusted-mem 0.1.0...
[INFO] testing rusted-mem-0.1.0 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate rusted-mem 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rusted-mem 0.1.0
[INFO] finished tweaking crates.io crate rusted-mem 0.1.0
[INFO] tweaked toml for crates.io crate rusted-mem 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusted-mem 0.1.0 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30e08ec41b0d755eee7aeaccbedb5cf1cbda4bf13fda214b08eb7c33f36e0055
[INFO] running `Command { std: "docker" "start" "-a" "30e08ec41b0d755eee7aeaccbedb5cf1cbda4bf13fda214b08eb7c33f36e0055", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30e08ec41b0d755eee7aeaccbedb5cf1cbda4bf13fda214b08eb7c33f36e0055", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30e08ec41b0d755eee7aeaccbedb5cf1cbda4bf13fda214b08eb7c33f36e0055", kill_on_drop: false }`
[INFO] [stdout] 30e08ec41b0d755eee7aeaccbedb5cf1cbda4bf13fda214b08eb7c33f36e0055
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b89780c37822b5973adcd0b0028cb766ce0dad97654f062343438d34cde252e6
[INFO] running `Command { std: "docker" "start" "-a" "b89780c37822b5973adcd0b0028cb766ce0dad97654f062343438d34cde252e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusted-mem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `key` and `value` are never read
[INFO] [stdout]   --> src/nodes.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Node<T> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 27 |     key: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 28 |     value: Option<T>
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "b89780c37822b5973adcd0b0028cb766ce0dad97654f062343438d34cde252e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b89780c37822b5973adcd0b0028cb766ce0dad97654f062343438d34cde252e6", kill_on_drop: false }`
[INFO] [stdout] b89780c37822b5973adcd0b0028cb766ce0dad97654f062343438d34cde252e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22cb878ffae40b128eafab536073b96ec908406ceee1a1baee4c3cc92e1a0e33
[INFO] running `Command { std: "docker" "start" "-a" "22cb878ffae40b128eafab536073b96ec908406ceee1a1baee4c3cc92e1a0e33", kill_on_drop: false }`
[INFO] [stdout] warning: fields `key` and `value` are never read
[INFO] [stdout]   --> src/nodes.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Node<T> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 27 |     key: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 28 |     value: Option<T>
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rusted-mem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "22cb878ffae40b128eafab536073b96ec908406ceee1a1baee4c3cc92e1a0e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22cb878ffae40b128eafab536073b96ec908406ceee1a1baee4c3cc92e1a0e33", kill_on_drop: false }`
[INFO] [stdout] 22cb878ffae40b128eafab536073b96ec908406ceee1a1baee4c3cc92e1a0e33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0d410135a1277e3bf672e5d4c7d0f56add25f16a16e67c418aacccf0044ae97b
[INFO] running `Command { std: "docker" "start" "-a" "0d410135a1277e3bf672e5d4c7d0f56add25f16a16e67c418aacccf0044ae97b", kill_on_drop: false }`
[INFO] [stderr] warning: fields `key` and `value` are never read
[INFO] [stderr]   --> src/nodes.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub struct Node<T> {
[INFO] [stderr]    |            ---- fields in this struct
[INFO] [stderr] 27 |     key: String,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 28 |     value: Option<T>
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rusted-mem` (lib) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/nodes.rs (/opt/rustwide/target/debug/deps/rusted_mem-d69aa9caf4e1c57a)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::add_node_to_nodes ... ok
[INFO] [stdout] test tests::nodes_is_empty ... ok
[INFO] [stdout] test tests::pop_empty_nodes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusted_mem
[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" "0d410135a1277e3bf672e5d4c7d0f56add25f16a16e67c418aacccf0044ae97b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d410135a1277e3bf672e5d4c7d0f56add25f16a16e67c418aacccf0044ae97b", kill_on_drop: false }`
[INFO] [stdout] 0d410135a1277e3bf672e5d4c7d0f56add25f16a16e67c418aacccf0044ae97b