[INFO] fetching crate catvec 0.1.6...
[INFO] testing catvec-0.1.6 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate catvec 0.1.6 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate catvec 0.1.6 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-11/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" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fastrand v1.5.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.30
[INFO] [stderr]   Downloaded arrayvec v0.7.1
[INFO] [stderr]   Downloaded honggfuzz v0.5.54
[INFO] [stderr]   Downloaded libc v0.2.105
[INFO] [stderr]   Downloaded defmac v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 141c5e8ab4fe3de071e9c6b5ba5574e6a8bc15499d2ded0c2211693937e658d3
[INFO] running `Command { std: "docker" "start" "-a" "141c5e8ab4fe3de071e9c6b5ba5574e6a8bc15499d2ded0c2211693937e658d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "141c5e8ab4fe3de071e9c6b5ba5574e6a8bc15499d2ded0c2211693937e658d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "141c5e8ab4fe3de071e9c6b5ba5574e6a8bc15499d2ded0c2211693937e658d3", kill_on_drop: false }`
[INFO] [stdout] 141c5e8ab4fe3de071e9c6b5ba5574e6a8bc15499d2ded0c2211693937e658d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad6626d2e466a526e85478f11bf13c98ed121c6d3b5ccf1bbce584ce2ab0815a
[INFO] running `Command { std: "docker" "start" "-a" "ad6626d2e466a526e85478f11bf13c98ed121c6d3b5ccf1bbce584ce2ab0815a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling arrayvec v0.7.1
[INFO] [stderr]    Compiling tap v1.0.1
[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 6.51s
[INFO] running `Command { std: "docker" "inspect" "ad6626d2e466a526e85478f11bf13c98ed121c6d3b5ccf1bbce584ce2ab0815a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad6626d2e466a526e85478f11bf13c98ed121c6d3b5ccf1bbce584ce2ab0815a", kill_on_drop: false }`
[INFO] [stdout] ad6626d2e466a526e85478f11bf13c98ed121c6d3b5ccf1bbce584ce2ab0815a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2daf5fb1f51205dd41fecd14b63680709e73edcbd4df96f8af6d7faa477dad55
[INFO] running `Command { std: "docker" "start" "-a" "2daf5fb1f51205dd41fecd14b63680709e73edcbd4df96f8af6d7faa477dad55", 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 4.70s
[INFO] running `Command { std: "docker" "inspect" "2daf5fb1f51205dd41fecd14b63680709e73edcbd4df96f8af6d7faa477dad55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2daf5fb1f51205dd41fecd14b63680709e73edcbd4df96f8af6d7faa477dad55", kill_on_drop: false }`
[INFO] [stdout] 2daf5fb1f51205dd41fecd14b63680709e73edcbd4df96f8af6d7faa477dad55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9cd00d9ad658cb140c13f817f0e0de19ba250ecd77d06ece4aa4170c1bb9098f
[INFO] running `Command { std: "docker" "start" "-a" "9cd00d9ad658cb140c13f817f0e0de19ba250ecd77d06ece4aa4170c1bb9098f", 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 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/catvec-add04c07a25b4e37)
[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-9663c91818c5aeb5)
[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] [stderr]    Doc-tests catvec
[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" "9cd00d9ad658cb140c13f817f0e0de19ba250ecd77d06ece4aa4170c1bb9098f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cd00d9ad658cb140c13f817f0e0de19ba250ecd77d06ece4aa4170c1bb9098f", kill_on_drop: false }`
[INFO] [stdout] 9cd00d9ad658cb140c13f817f0e0de19ba250ecd77d06ece4aa4170c1bb9098f