[INFO] fetching crate butcher 0.5.0...
[INFO] testing butcher-0.5.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate butcher 0.5.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate butcher 0.5.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate butcher 0.5.0
[INFO] finished tweaking crates.io crate butcher 0.5.0
[INFO] tweaked toml for crates.io crate butcher 0.5.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded butcher_proc_macro v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 64c608d0bd4ccee16b44fed76ddcf3614099a53293ed3b181df040c7960193fa
[INFO] running `Command { std: "docker" "start" "-a" "64c608d0bd4ccee16b44fed76ddcf3614099a53293ed3b181df040c7960193fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64c608d0bd4ccee16b44fed76ddcf3614099a53293ed3b181df040c7960193fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64c608d0bd4ccee16b44fed76ddcf3614099a53293ed3b181df040c7960193fa", kill_on_drop: false }`
[INFO] [stdout] 64c608d0bd4ccee16b44fed76ddcf3614099a53293ed3b181df040c7960193fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d21b6e7111555e81ad2c52fe93565f7dbb2ba4a2c9d701bb412d395ac11dc20e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d21b6e7111555e81ad2c52fe93565f7dbb2ba4a2c9d701bb412d395ac11dc20e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling butcher_proc_macro v0.5.1
[INFO] [stderr]    Compiling butcher v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.08s
[INFO] running `Command { std: "docker" "inspect" "d21b6e7111555e81ad2c52fe93565f7dbb2ba4a2c9d701bb412d395ac11dc20e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d21b6e7111555e81ad2c52fe93565f7dbb2ba4a2c9d701bb412d395ac11dc20e", kill_on_drop: false }`
[INFO] [stdout] d21b6e7111555e81ad2c52fe93565f7dbb2ba4a2c9d701bb412d395ac11dc20e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13905fdfb32144db752be05c21a6fa7c5082898735e314df5a31a81d81bd8f61
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "13905fdfb32144db752be05c21a6fa7c5082898735e314df5a31a81d81bd8f61", kill_on_drop: false }`
[INFO] [stderr]    Compiling butcher v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "13905fdfb32144db752be05c21a6fa7c5082898735e314df5a31a81d81bd8f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13905fdfb32144db752be05c21a6fa7c5082898735e314df5a31a81d81bd8f61", kill_on_drop: false }`
[INFO] [stdout] 13905fdfb32144db752be05c21a6fa7c5082898735e314df5a31a81d81bd8f61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a2721c203a1d96906f58cc56222b18170e3616a8b2e162e8b3cbc309fb6ae47a
[INFO] running `Command { std: "docker" "start" "-a" "a2721c203a1d96906f58cc56222b18170e3616a8b2e162e8b3cbc309fb6ae47a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/butcher-13c18c5c044972cf)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test flatten::tests::borrowed_borrowed ... ok
[INFO] [stdout] test as_deref::flatten_fn::as_deref_cow_box_str_owned ... ok
[INFO] [stdout] test iterator::cow_iter::iterator_owned ... ok
[INFO] [stdout] test flatten::tests::borrowed_owned ... ok
[INFO] [stdout] test iterator::cow_iter::iterator_borrowed ... ok
[INFO] [stdout] test as_deref::flatten_fn::as_deref_cow_string_owned ... ok
[INFO] [stdout] test as_deref::flatten_fn::as_deref_cow_box_str_borrowed ... ok
[INFO] [stdout] test as_deref::flatten_fn::as_deref_cow_string_borrowed ... ok
[INFO] [stdout] test flatten::tests::owned_borrowed ... ok
[INFO] [stdout] test flatten::tests::owned_owned ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests butcher
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/deriving_butcher_enum.rs - deriving_butcher_enum (line 28) ... ok
[INFO] [stdout] test src/deriving_butcher_enum.rs - deriving_butcher_enum (line 48) ... ok
[INFO] [stdout] test src/deriving_butcher_struct.rs - deriving_butcher_struct (line 10) ... ok
[INFO] [stdout] test src/deriving_butcher_struct.rs - deriving_butcher_struct (line 104) ... ok
[INFO] [stdout] test src/deriving_butcher_struct.rs - deriving_butcher_struct (line 43) ... ok
[INFO] [stdout] test src/deriving_butcher_struct.rs - deriving_butcher_struct (line 212) - compile fail ... ok
[INFO] [stdout] test src/deriving_butcher_enum.rs - deriving_butcher_enum (line 12) ... ok
[INFO] [stdout] test src/flatten.rs - flatten::FlattenCow (line 40) ... ok
[INFO] [stdout] test src/deriving_butcher_struct.rs - deriving_butcher_struct (line 69) ... ok
[INFO] [stdout] test src/flatten.rs - flatten::FlattenCow (line 26) ... ok
[INFO] [stdout] test src/deriving_butcher_struct.rs - deriving_butcher_struct (line 22) ... ok
[INFO] [stdout] test src/deriving_butcher_struct.rs - deriving_butcher_struct (line 237) ... ok
[INFO] [stdout] test src/deriving_butcher_struct.rs - deriving_butcher_struct (line 172) ... ok
[INFO] [stdout] test src/as_deref.rs - as_deref::AsDerefCow (line 33) ... ok
[INFO] [stdout] test src/deriving_butcher_enum.rs - deriving_butcher_enum (line 59) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::CowIter (line 20) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::CowIter (line 37) ... ok
[INFO] [stdout] test src/lib.rs - (line 68) ... ok
[INFO] [stdout] test src/methods.rs - methods::Rebutcher (line 201) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.30s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a2721c203a1d96906f58cc56222b18170e3616a8b2e162e8b3cbc309fb6ae47a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2721c203a1d96906f58cc56222b18170e3616a8b2e162e8b3cbc309fb6ae47a", kill_on_drop: false }`
[INFO] [stdout] a2721c203a1d96906f58cc56222b18170e3616a8b2e162e8b3cbc309fb6ae47a