[INFO] fetching crate okasaki 0.1.0...
[INFO] testing okasaki-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate okasaki 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate okasaki 0.1.0
[INFO] finished tweaking crates.io crate okasaki 0.1.0
[INFO] tweaked toml for crates.io crate okasaki 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate okasaki 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e222f000e3d25644db834c40121ef7c2aec60e110ff7bfc3439117128ac6432
[INFO] running `Command { std: "docker" "start" "-a" "7e222f000e3d25644db834c40121ef7c2aec60e110ff7bfc3439117128ac6432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e222f000e3d25644db834c40121ef7c2aec60e110ff7bfc3439117128ac6432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e222f000e3d25644db834c40121ef7c2aec60e110ff7bfc3439117128ac6432", kill_on_drop: false }`
[INFO] [stdout] 7e222f000e3d25644db834c40121ef7c2aec60e110ff7bfc3439117128ac6432
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da340d9c1569ad3c9b133ec3d9f77428aec89aed009e19d3c2727ff972dadcef
[INFO] running `Command { std: "docker" "start" "-a" "da340d9c1569ad3c9b133ec3d9f77428aec89aed009e19d3c2727ff972dadcef", kill_on_drop: false }`
[INFO] [stderr]    Compiling okasaki v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ListNode` is never constructed
[INFO] [stdout]  --> src/list.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct ListNode<T> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]  --> src/list.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl<T> ListNode<T> {
[INFO] [stdout]   | ------------------- method in this implementation
[INFO] [stdout] 7 |     fn len(&self) -> usize {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]   --> src/list.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct List<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `len` are never used
[INFO] [stdout]   --> src/list.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl<T> List<T> {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 23 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "da340d9c1569ad3c9b133ec3d9f77428aec89aed009e19d3c2727ff972dadcef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da340d9c1569ad3c9b133ec3d9f77428aec89aed009e19d3c2727ff972dadcef", kill_on_drop: false }`
[INFO] [stdout] da340d9c1569ad3c9b133ec3d9f77428aec89aed009e19d3c2727ff972dadcef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 266b2c1e5ebb47ae4f6095060731c13371fc0ccbad1e19ef414faa94d7699c78
[INFO] running `Command { std: "docker" "start" "-a" "266b2c1e5ebb47ae4f6095060731c13371fc0ccbad1e19ef414faa94d7699c78", kill_on_drop: false }`
[INFO] [stderr]    Compiling okasaki v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ListNode` is never constructed
[INFO] [stdout]  --> src/list.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct ListNode<T> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]  --> src/list.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl<T> ListNode<T> {
[INFO] [stdout]   | ------------------- method in this implementation
[INFO] [stdout] 7 |     fn len(&self) -> usize {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]   --> src/list.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct List<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `len` are never used
[INFO] [stdout]   --> src/list.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl<T> List<T> {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 23 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> src/list.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct ListNode<T> {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] 2 |     value: 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 `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "266b2c1e5ebb47ae4f6095060731c13371fc0ccbad1e19ef414faa94d7699c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "266b2c1e5ebb47ae4f6095060731c13371fc0ccbad1e19ef414faa94d7699c78", kill_on_drop: false }`
[INFO] [stdout] 266b2c1e5ebb47ae4f6095060731c13371fc0ccbad1e19ef414faa94d7699c78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a05d2b54211e663c0ae385951f8048eccc9b506180d039b1a156be818e82bc5c
[INFO] running `Command { std: "docker" "start" "-a" "a05d2b54211e663c0ae385951f8048eccc9b506180d039b1a156be818e82bc5c", kill_on_drop: false }`
[INFO] [stderr] warning: struct `ListNode` is never constructed
[INFO] [stderr]  --> src/list.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct ListNode<T> {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `len` is never used
[INFO] [stderr]  --> src/list.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | impl<T> ListNode<T> {
[INFO] [stderr]   | ------------------- method in this implementation
[INFO] [stderr] 7 |     fn len(&self) -> usize {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `List` is never constructed
[INFO] [stderr]   --> src/list.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct List<T> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `len` are never used
[INFO] [stderr]   --> src/list.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl<T> List<T> {
[INFO] [stderr]    | --------------- associated items in this implementation
[INFO] [stderr] 23 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 27 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `okasaki` (lib) generated 4 warnings
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]  --> src/list.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct ListNode<T> {
[INFO] [stderr]   |        -------- field in this struct
[INFO] [stderr] 2 |     value: T,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `okasaki` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/okasaki-53f05fade8ce97bc)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests okasaki
[INFO] [stdout] running 2 tests
[INFO] [stdout] test list::tests::test_new_list ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "a05d2b54211e663c0ae385951f8048eccc9b506180d039b1a156be818e82bc5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a05d2b54211e663c0ae385951f8048eccc9b506180d039b1a156be818e82bc5c", kill_on_drop: false }`
[INFO] [stdout] a05d2b54211e663c0ae385951f8048eccc9b506180d039b1a156be818e82bc5c
