[INFO] fetching crate catvec 0.1.2...
[INFO] testing catvec-0.1.2 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate catvec 0.1.2 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate catvec 0.1.2 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate catvec 0.1.2
[INFO] finished tweaking crates.io crate catvec 0.1.2
[INFO] tweaked toml for crates.io crate catvec 0.1.2 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] crate crates.io crate catvec 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f0c48c00e1f9956bb00f79c2a5b63fc3b6ac00bc2865b7e8575af2fbb93c926
[INFO] running `Command { std: "docker" "start" "-a" "2f0c48c00e1f9956bb00f79c2a5b63fc3b6ac00bc2865b7e8575af2fbb93c926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f0c48c00e1f9956bb00f79c2a5b63fc3b6ac00bc2865b7e8575af2fbb93c926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f0c48c00e1f9956bb00f79c2a5b63fc3b6ac00bc2865b7e8575af2fbb93c926", kill_on_drop: false }`
[INFO] [stdout] 2f0c48c00e1f9956bb00f79c2a5b63fc3b6ac00bc2865b7e8575af2fbb93c926
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 512ae7e3271f9473cdb5dc4832ecb57d9bf1e48f686d1f9e51b347871a3eacc2
[INFO] running `Command { std: "docker" "start" "-a" "512ae7e3271f9473cdb5dc4832ecb57d9bf1e48f686d1f9e51b347871a3eacc2", 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 defmac v0.2.1
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling tap v1.0.1
[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 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `collections::VecDeque`, `fmt::Debug`, `thread::current`
[INFO] [stdout]  --> src/btree.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::VecDeque, fmt::Debug, sync::Arc, thread::current};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tap::Pipe`
[INFO] [stdout]  --> src/btree.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tap::Pipe;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `first_two_children`
[INFO] [stdout]    --> src/btree.rs:537:8
[INFO] [stdout]     |
[INFO] [stdout] 537 |     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:555:8
[INFO] [stdout]     |
[INFO] [stdout] 555 |     fn last_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 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 8.80s
[INFO] running `Command { std: "docker" "inspect" "512ae7e3271f9473cdb5dc4832ecb57d9bf1e48f686d1f9e51b347871a3eacc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "512ae7e3271f9473cdb5dc4832ecb57d9bf1e48f686d1f9e51b347871a3eacc2", kill_on_drop: false }`
[INFO] [stdout] 512ae7e3271f9473cdb5dc4832ecb57d9bf1e48f686d1f9e51b347871a3eacc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4da82b84cb945dd1d431142f15d851f5a5ea737003037aa18acc6f5ef5186ba3
[INFO] running `Command { std: "docker" "start" "-a" "4da82b84cb945dd1d431142f15d851f5a5ea737003037aa18acc6f5ef5186ba3", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stdout] warning: unused imports: `collections::VecDeque`, `fmt::Debug`, `thread::current`
[INFO] [stdout]  --> src/btree.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::VecDeque, fmt::Debug, sync::Arc, thread::current};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tap::Pipe`
[INFO] [stdout]  --> src/btree.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tap::Pipe;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `first_two_children`
[INFO] [stdout]    --> src/btree.rs:537:8
[INFO] [stdout]     |
[INFO] [stdout] 537 |     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:555:8
[INFO] [stdout]     |
[INFO] [stdout] 555 |     fn last_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling catvec v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `collections::VecDeque`, `fmt::Debug`, `thread::current`
[INFO] [stdout]  --> src/btree.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::VecDeque, fmt::Debug, sync::Arc, thread::current};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tap::Pipe`
[INFO] [stdout]  --> src/btree.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tap::Pipe;
[INFO] [stdout]   |     ^^^^^^^^^
[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: associated function is never used: `first_two_children`
[INFO] [stdout]    --> src/btree.rs:537:8
[INFO] [stdout]     |
[INFO] [stdout] 537 |     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:555:8
[INFO] [stdout]     |
[INFO] [stdout] 555 |     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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.92s
[INFO] running `Command { std: "docker" "inspect" "4da82b84cb945dd1d431142f15d851f5a5ea737003037aa18acc6f5ef5186ba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4da82b84cb945dd1d431142f15d851f5a5ea737003037aa18acc6f5ef5186ba3", kill_on_drop: false }`
[INFO] [stdout] 4da82b84cb945dd1d431142f15d851f5a5ea737003037aa18acc6f5ef5186ba3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e742d6cdb067174f70aad364ea7055460b027c5184560fa383b2c4f6266da189
[INFO] running `Command { std: "docker" "start" "-a" "e742d6cdb067174f70aad364ea7055460b027c5184560fa383b2c4f6266da189", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `collections::VecDeque`, `fmt::Debug`, `thread::current`
[INFO] [stderr]  --> src/btree.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{collections::VecDeque, fmt::Debug, sync::Arc, thread::current};
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^             ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tap::Pipe`
[INFO] [stderr]  --> src/btree.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use tap::Pipe;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `first_two_children`
[INFO] [stderr]    --> src/btree.rs:537:8
[INFO] [stderr]     |
[INFO] [stderr] 537 |     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:555:8
[INFO] [stderr]     |
[INFO] [stderr] 555 |     fn last_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `catvec` (lib) generated 4 warnings
[INFO] [stderr] warning: `catvec` (lib test) generated 4 warnings (4 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 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/catvec-00c3c89d961870c9)
[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 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fuzz-8667d15b2b05a804)
[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] [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" "e742d6cdb067174f70aad364ea7055460b027c5184560fa383b2c4f6266da189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e742d6cdb067174f70aad364ea7055460b027c5184560fa383b2c4f6266da189", kill_on_drop: false }`
[INFO] [stdout] e742d6cdb067174f70aad364ea7055460b027c5184560fa383b2c4f6266da189