[INFO] fetching crate buffertk 0.13.0...
[INFO] testing buffertk-0.13.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate buffertk 0.13.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate buffertk 0.13.0
[INFO] finished tweaking crates.io crate buffertk 0.13.0
[INFO] tweaked toml for crates.io crate buffertk 0.13.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate buffertk 0.13.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate buffertk 0.13.0 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03e76d1901f63fac19b5f2a68de99ccaf62b44742dfd5019186f2b654410efab
[INFO] running `Command { std: "docker" "start" "-a" "03e76d1901f63fac19b5f2a68de99ccaf62b44742dfd5019186f2b654410efab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03e76d1901f63fac19b5f2a68de99ccaf62b44742dfd5019186f2b654410efab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03e76d1901f63fac19b5f2a68de99ccaf62b44742dfd5019186f2b654410efab", kill_on_drop: false }`
[INFO] [stdout] 03e76d1901f63fac19b5f2a68de99ccaf62b44742dfd5019186f2b654410efab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 300d744a7ca2ae97a3a977cbc146b34cf1916b44709e7376847bb1788d9c1d00
[INFO] running `Command { std: "docker" "start" "-a" "300d744a7ca2ae97a3a977cbc146b34cf1916b44709e7376847bb1788d9c1d00", kill_on_drop: false }`
[INFO] [stderr]    Compiling buffertk v0.13.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:429:40
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<P> {
[INFO] [stdout]     |                                        ^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<'_, P> {
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "300d744a7ca2ae97a3a977cbc146b34cf1916b44709e7376847bb1788d9c1d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "300d744a7ca2ae97a3a977cbc146b34cf1916b44709e7376847bb1788d9c1d00", kill_on_drop: false }`
[INFO] [stdout] 300d744a7ca2ae97a3a977cbc146b34cf1916b44709e7376847bb1788d9c1d00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3476bc4aac9692570187d89f75e23b6e41e91ca10b5625018611bc86b4569b5
[INFO] running `Command { std: "docker" "start" "-a" "e3476bc4aac9692570187d89f75e23b6e41e91ca10b5625018611bc86b4569b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling sig_fig_histogram v0.6.0
[INFO] [stderr]    Compiling getopts v0.2.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:429:40
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<P> {
[INFO] [stdout]     |                                        ^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<'_, P> {
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling derive_util v0.5.0
[INFO] [stderr]    Compiling arrrg_derive v0.8.0
[INFO] [stderr]    Compiling arrrg v0.8.0
[INFO] [stderr]    Compiling guacamole v0.14.0
[INFO] [stderr]    Compiling statslicer v0.9.0
[INFO] [stderr]    Compiling buffertk v0.13.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:429:40
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<P> {
[INFO] [stdout]     |                                        ^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<'_, P> {
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.66s
[INFO] running `Command { std: "docker" "inspect" "e3476bc4aac9692570187d89f75e23b6e41e91ca10b5625018611bc86b4569b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3476bc4aac9692570187d89f75e23b6e41e91ca10b5625018611bc86b4569b5", kill_on_drop: false }`
[INFO] [stdout] e3476bc4aac9692570187d89f75e23b6e41e91ca10b5625018611bc86b4569b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 840808dace1b71516d85856ad640eb207dae03ea14cb6c645b3ccc0d38000d87
[INFO] running `Command { std: "docker" "start" "-a" "840808dace1b71516d85856ad640eb207dae03ea14cb6c645b3ccc0d38000d87", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:429:40
[INFO] [stderr]     |
[INFO] [stderr] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<P> {
[INFO] [stderr]     |                                        ^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 429 | pub fn length_free<P: Packable>(slice: &[P]) -> LengthFree<'_, P> {
[INFO] [stderr]     |                                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: `buffertk` (lib) generated 1 warning (run `cargo fix --lib -p buffertk` to apply 1 suggestion)
[INFO] [stderr] warning: `buffertk` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/buffertk-2ab9d534a4ea6dab)
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test tests::length_free ... ok
[INFO] [stdout] test tests::pack_and_unpack_floats ... ok
[INFO] [stdout] test tests::pack_and_unpack_integers ... ok
[INFO] [stdout] test tests::stack_pack_into_slice ... ok
[INFO] [stdout] test tests::stack_packer ... ok
[INFO] [stdout] test tests::pack_void ... ok
[INFO] [stdout] test varint::tests::assumption_u64_holds_usize ... ok
[INFO] [stdout] test varint::tests::from_into_i32 ... ok
[INFO] [stdout] test varint::tests::from_into_i64 ... ok
[INFO] [stdout] test varint::tests::from_into_i8 ... ok
[INFO] [stdout] test varint::tests::from_into_u16 ... ok
[INFO] [stdout] test varint::tests::from_into_u64 ... ok
[INFO] [stdout] test varint::tests::pack_varint ... ok
[INFO] [stdout] test varint::tests::try_into_i16 ... ok
[INFO] [stdout] test varint::tests::try_into_i8 ... ok
[INFO] [stdout] test varint::tests::try_into_i32 ... ok
[INFO] [stdout] test varint::tests::try_into_u8 ... ok
[INFO] [stdout] test varint::tests::from_into_i16 ... ok
[INFO] [stdout] test varint::tests::unpack_varint ... ok
[INFO] [stdout] test varint::tests::from_into_u32 ... ok
[INFO] [stdout] test varint::tests::from_into_u8 ... ok
[INFO] [stdout] test varint::tests::from_into_usize ... ok
[INFO] [stdout] test tests::pack_and_unpack_slice ... ok
[INFO] [stdout] test varint::tests::try_into_u16 ... ok
[INFO] [stdout] test tests::split_tuple ... ok
[INFO] [stdout] test varint::tests::try_into_u32 ... ok
[INFO] [stdout] test tests::unpacker ... ok
[INFO] [stdout] test tests::stack_pack_to_vec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/unvarint.rs (/opt/rustwide/target/debug/deps/unvarint-8ccc7d4295fbff94)
[INFO] [stderr]      Running unittests src/bin/varint.rs (/opt/rustwide/target/debug/deps/varint-4a79a028dc50e2c8)
[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] [stderr]    Doc-tests buffertk
[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 2 tests
[INFO] [stdout] test src/lib.rs - (line 32) ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "840808dace1b71516d85856ad640eb207dae03ea14cb6c645b3ccc0d38000d87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "840808dace1b71516d85856ad640eb207dae03ea14cb6c645b3ccc0d38000d87", kill_on_drop: false }`
[INFO] [stdout] 840808dace1b71516d85856ad640eb207dae03ea14cb6c645b3ccc0d38000d87