[INFO] fetching crate catvec 0.1.6...
[INFO] testing catvec-0.1.6 against 1.59.0 for beta-1.60-1
[INFO] extracting crate catvec 0.1.6 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate catvec 0.1.6 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate catvec 0.1.6
[INFO] finished tweaking crates.io crate catvec 0.1.6
[INFO] tweaked toml for crates.io crate catvec 0.1.6 written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate crates.io crate catvec 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73ba250de720c01f79f8093ca158a30bd2cb3b5f7203fb501100a29a9080fd32
[INFO] running `Command { std: "docker" "start" "-a" "73ba250de720c01f79f8093ca158a30bd2cb3b5f7203fb501100a29a9080fd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73ba250de720c01f79f8093ca158a30bd2cb3b5f7203fb501100a29a9080fd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73ba250de720c01f79f8093ca158a30bd2cb3b5f7203fb501100a29a9080fd32", kill_on_drop: false }`
[INFO] [stdout] 73ba250de720c01f79f8093ca158a30bd2cb3b5f7203fb501100a29a9080fd32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f7316c15d1278f2307e39bb9dd374f58d8f513ca327edd63aead39203d83485
[INFO] running `Command { std: "docker" "start" "-a" "8f7316c15d1278f2307e39bb9dd374f58d8f513ca327edd63aead39203d83485", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling arrayvec v0.7.1
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling defmac v0.2.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling derive_arbitrary v1.0.2
[INFO] [stderr]    Compiling arbitrary v1.0.2
[INFO] [stderr]    Compiling catvec v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `first_two_children`
[INFO] [stdout]    --> src/btree.rs:536:8
[INFO] [stdout]     |
[INFO] [stdout] 536 |     fn first_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last_two_children`
[INFO] [stdout]    --> src/btree.rs:554:8
[INFO] [stdout]     |
[INFO] [stdout] 554 |     fn last_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval`
[INFO] [stdout]   --> src/bin/fuzz.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn eval(ops: &[Op]) -> Option<CatVec<u8, 4>> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_once`
[INFO] [stdout]   --> src/bin/fuzz.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn test_once(data: &[u8]) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.26s
[INFO] running `Command { std: "docker" "inspect" "8f7316c15d1278f2307e39bb9dd374f58d8f513ca327edd63aead39203d83485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f7316c15d1278f2307e39bb9dd374f58d8f513ca327edd63aead39203d83485", kill_on_drop: false }`
[INFO] [stdout] 8f7316c15d1278f2307e39bb9dd374f58d8f513ca327edd63aead39203d83485
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 211220522d705e9b23a2a7b488567c1f7be5d95dd0028a94f4b4fa89ebf6dfbd
[INFO] running `Command { std: "docker" "start" "-a" "211220522d705e9b23a2a7b488567c1f7be5d95dd0028a94f4b4fa89ebf6dfbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stdout] warning: associated function is never used: `first_two_children`
[INFO] [stdout]    --> src/btree.rs:536:8
[INFO] [stdout]     |
[INFO] [stdout] 536 |     fn first_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last_two_children`
[INFO] [stdout]    --> src/btree.rs:554:8
[INFO] [stdout]     |
[INFO] [stdout] 554 |     fn last_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling catvec v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `eval`
[INFO] [stdout]   --> src/bin/fuzz.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn eval(ops: &[Op]) -> Option<CatVec<u8, 4>> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_once`
[INFO] [stdout]   --> src/bin/fuzz.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn test_once(data: &[u8]) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `first_two_children`
[INFO] [stdout]    --> src/btree.rs:536:8
[INFO] [stdout]     |
[INFO] [stdout] 536 |     fn first_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last_two_children`
[INFO] [stdout]    --> src/btree.rs:554:8
[INFO] [stdout]     |
[INFO] [stdout] 554 |     fn last_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.82s
[INFO] running `Command { std: "docker" "inspect" "211220522d705e9b23a2a7b488567c1f7be5d95dd0028a94f4b4fa89ebf6dfbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "211220522d705e9b23a2a7b488567c1f7be5d95dd0028a94f4b4fa89ebf6dfbd", kill_on_drop: false }`
[INFO] [stdout] 211220522d705e9b23a2a7b488567c1f7be5d95dd0028a94f4b4fa89ebf6dfbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf7f8c24a1461f3231a46edb2ae196f4776ba792d717e645af48c12241807bd9
[INFO] running `Command { std: "docker" "start" "-a" "cf7f8c24a1461f3231a46edb2ae196f4776ba792d717e645af48c12241807bd9", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `first_two_children`
[INFO] [stderr]    --> src/btree.rs:536:8
[INFO] [stderr]     |
[INFO] [stderr] 536 |     fn first_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `last_two_children`
[INFO] [stderr]    --> src/btree.rs:554:8
[INFO] [stderr]     |
[INFO] [stderr] 554 |     fn last_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `catvec` (lib) generated 2 warnings
[INFO] [stderr] warning: `catvec` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: function is never used: `eval`
[INFO] [stderr]   --> src/bin/fuzz.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn eval(ops: &[Op]) -> Option<CatVec<u8, 4>> {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_once`
[INFO] [stderr]   --> src/bin/fuzz.rs:84:4
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn test_once(data: &[u8]) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `catvec` (bin "fuzz" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/catvec-7fd7f99c12eadbaf)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test btree::tests::basic_insertion ... ok
[INFO] [stdout] test btree::tests::concat ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fuzz-3090e5b66fbcc03b)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests catvec
[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 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" "cf7f8c24a1461f3231a46edb2ae196f4776ba792d717e645af48c12241807bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf7f8c24a1461f3231a46edb2ae196f4776ba792d717e645af48c12241807bd9", kill_on_drop: false }`
[INFO] [stdout] cf7f8c24a1461f3231a46edb2ae196f4776ba792d717e645af48c12241807bd9