[INFO] fetching crate catvec 0.1.6...
[INFO] checking catvec-0.1.6 against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] extracting crate catvec 0.1.6 into /workspace/builds/worker-0-tc1/source
[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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate catvec 0.1.6 on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate catvec 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arrayvec v0.7.1
[INFO] [stderr]   Downloaded arbitrary v1.0.2
[INFO] [stderr]   Downloaded defmac v0.2.1
[INFO] [stderr]   Downloaded derive_arbitrary v1.0.2
[INFO] [stderr]   Downloaded honggfuzz v0.5.54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fc5a0c0703cfb89461427f373616a8bd763fea183eadc25e5fe3e85fad79f2f
[INFO] running `Command { std: "docker" "start" "-a" "6fc5a0c0703cfb89461427f373616a8bd763fea183eadc25e5fe3e85fad79f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fc5a0c0703cfb89461427f373616a8bd763fea183eadc25e5fe3e85fad79f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fc5a0c0703cfb89461427f373616a8bd763fea183eadc25e5fe3e85fad79f2f", kill_on_drop: false }`
[INFO] [stdout] 6fc5a0c0703cfb89461427f373616a8bd763fea183eadc25e5fe3e85fad79f2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4481eac42f3235b84bb2baa0697f9eee1c8fc13dbaf762dcd980cc504e84d2c1
[INFO] running `Command { std: "docker" "start" "-a" "4481eac42f3235b84bb2baa0697f9eee1c8fc13dbaf762dcd980cc504e84d2c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking defmac v0.2.1
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling derive_arbitrary v1.0.2
[INFO] [stderr]     Checking arbitrary v1.0.2
[INFO] [stderr]     Checking catvec v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/btree.rs:380:60
[INFO] [stdout]     |
[INFO] [stdout] 380 |             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stdout]     |                                                            ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 380 -             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stdout] 380 +             fringe.length = fringe.children.iter().map(|c| c.len()).sum();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/btree.rs:380:60
[INFO] [stdout]     |
[INFO] [stdout] 380 |             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stdout]     |                                                            ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 380 -             fringe.length = fringe.children.iter().map(|c| (c.len())).sum();
[INFO] [stdout] 380 +             fringe.length = fringe.children.iter().map(|c| c.len()).sum();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `first_two_children` and `last_two_children` are never used
[INFO] [stdout]    --> src/btree.rs:536:8
[INFO] [stdout]     |
[INFO] [stdout] 42  | impl<T: Clone, const ORD: usize> Tree<T, ORD> {
[INFO] [stdout]     | --------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 536 |     fn first_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 554 |     fn last_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: methods `first_two_children` and `last_two_children` are never used
[INFO] [stdout]    --> src/btree.rs:536:8
[INFO] [stdout]     |
[INFO] [stdout] 42  | impl<T: Clone, const ORD: usize> Tree<T, ORD> {
[INFO] [stdout]     | --------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 536 |     fn first_two_children(&mut self) -> (Option<&mut Self>, Option<&mut Self>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 554 |     fn last_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: unexpected `cfg` condition name: `fuzzing`
[INFO] [stdout]  --> src/bin/fuzz.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(fuzzing)]
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(fuzzing)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `fuzzing`
[INFO] [stdout]   --> src/bin/fuzz.rs:91:11
[INFO] [stdout]    |
[INFO] [stdout] 91 | #[cfg(not(fuzzing))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(fuzzing)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `fuzzing`
[INFO] [stdout]  --> src/bin/fuzz.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[cfg(fuzzing)]
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(fuzzing)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `fuzzing`
[INFO] [stdout]   --> src/bin/fuzz.rs:91:11
[INFO] [stdout]    |
[INFO] [stdout] 91 | #[cfg(not(fuzzing))]
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(fuzzing)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(fuzzing)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Op` is never used
[INFO] [stdout]   --> src/bin/fuzz.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum Op {
[INFO] [stdout]    |      ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eval` is never used
[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] 
[INFO] [stdout] warning: function `test_once` is never used
[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: enum `Op` is never used
[INFO] [stdout]   --> src/bin/fuzz.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum Op {
[INFO] [stdout]    |      ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eval` is never used
[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] 
[INFO] [stdout] warning: function `test_once` is never used
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.27s
[INFO] running `Command { std: "docker" "inspect" "4481eac42f3235b84bb2baa0697f9eee1c8fc13dbaf762dcd980cc504e84d2c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4481eac42f3235b84bb2baa0697f9eee1c8fc13dbaf762dcd980cc504e84d2c1", kill_on_drop: false }`
[INFO] [stdout] 4481eac42f3235b84bb2baa0697f9eee1c8fc13dbaf762dcd980cc504e84d2c1
