[INFO] fetching crate mbox 0.7.1...
[INFO] testing mbox-0.7.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate mbox 0.7.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate mbox 0.7.1
[INFO] finished tweaking crates.io crate mbox 0.7.1
[INFO] tweaked toml for crates.io crate mbox 0.7.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mbox 0.7.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f32bfc231808ed88e2539f50e3a7685da615b0099bf35ed5496cf7859df77df5
[INFO] running `Command { std: "docker" "start" "-a" "f32bfc231808ed88e2539f50e3a7685da615b0099bf35ed5496cf7859df77df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f32bfc231808ed88e2539f50e3a7685da615b0099bf35ed5496cf7859df77df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f32bfc231808ed88e2539f50e3a7685da615b0099bf35ed5496cf7859df77df5", kill_on_drop: false }`
[INFO] [stdout] f32bfc231808ed88e2539f50e3a7685da615b0099bf35ed5496cf7859df77df5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e99635ed506f1ebba2ca967803466758744a0317f6333ead909c97f321420293
[INFO] running `Command { std: "docker" "start" "-a" "e99635ed506f1ebba2ca967803466758744a0317f6333ead909c97f321420293", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling mbox v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "e99635ed506f1ebba2ca967803466758744a0317f6333ead909c97f321420293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e99635ed506f1ebba2ca967803466758744a0317f6333ead909c97f321420293", kill_on_drop: false }`
[INFO] [stdout] e99635ed506f1ebba2ca967803466758744a0317f6333ead909c97f321420293
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a70cc2b2554ccd3bc06724e630d6efd28c69dceec56c14c81bb3f4bbf883c517
[INFO] running `Command { std: "docker" "start" "-a" "a70cc2b2554ccd3bc06724e630d6efd28c69dceec56c14c81bb3f4bbf883c517", kill_on_drop: false }`
[INFO] [stderr]    Compiling mbox v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "a70cc2b2554ccd3bc06724e630d6efd28c69dceec56c14c81bb3f4bbf883c517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a70cc2b2554ccd3bc06724e630d6efd28c69dceec56c14c81bb3f4bbf883c517", kill_on_drop: false }`
[INFO] [stdout] a70cc2b2554ccd3bc06724e630d6efd28c69dceec56c14c81bb3f4bbf883c517
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d1382df6150fed00f28d0455f712741d76cb842d21059864ea33e53f3648278f
[INFO] running `Command { std: "docker" "start" "-a" "d1382df6150fed00f28d0455f712741d76cb842d21059864ea33e53f3648278f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mbox-406eeacc87bf366a)
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test mbox::test_aligned ... ok
[INFO] [stdout] test mbox::test_clone ... ok
[INFO] [stdout] test mbox::test_clone_slice ... ok
[INFO] [stdout] test mbox::test_clone_from ... ok
[INFO] [stdout] test mbox::test_default_str ... ok
[INFO] [stdout] test mbox::test_empty_slice ... ok
[INFO] [stdout] test mbox::test_format ... ok
[INFO] [stdout] test mbox::test_from_iterator_with_no_size_hint ... ok
[INFO] [stdout] test mbox::test_into_iterator ... ok
[INFO] [stdout] test mbox::test_from_iterator ... ok
[INFO] [stdout] test mbox::test_iter_drop ... ok
[INFO] [stdout] test mbox::test_into_raw ... ok
[INFO] [stdout] test mbox::test_iter_properties ... ok
[INFO] [stdout] test mbox::test_non_utf8 ... ok
[INFO] [stdout] test mbox::test_no_drop_flag ... ok
[INFO] [stdout] test mbox::test_non_zero ... ok
[INFO] [stdout] test mbox::test_single_object ... ok
[INFO] [stdout] test mbox::test_standard_traits ... ok
[INFO] [stdout] test mbox::test_zero_sized_type ... ok
[INFO] [stdout] test mbox::test_string_with_internal_nul ... ok
[INFO] [stdout] test mbox::test_string_from_bytes ... ok
[INFO] [stdout] test mbox::test_slice ... ok
[INFO] [stdout] test mbox::test_zst_slice ... ok
[INFO] [stdout] test sentinel::test_default_array ... ok
[INFO] [stdout] test mbox::test_slice_with_drops ... ok
[INFO] [stdout] test sentinel::test_array ... ok
[INFO] [stdout] test sentinel::test_default_string ... ok
[INFO] [stdout] test sentinel::test_non_utf8_string ... ok
[INFO] [stdout] test sentinel::test_string ... ok
[INFO] [stdout] test sentinel::test_hash_array ... ok
[INFO] [stdout] test sentinel::test_hash_string ... ok
[INFO] [stdout] test sentinel::test_array_into_mbox ... ok
[INFO] [stdout] test sentinel::test_c_str ... ok
[INFO] [stdout] test sentinel::test_string_into_mbox ... ok
[INFO] [stdout] test sentinel::test_array_with_drop ... ok
[INFO] [stdout] test mbox::test_panic_during_clone_from - should panic ... ok
[INFO] [stdout] test mbox::test_panic_during_clone - should panic ... ok
[INFO] [stdout] test mbox::test_panic_on_clone_slice - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 38 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mbox
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 48) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d1382df6150fed00f28d0455f712741d76cb842d21059864ea33e53f3648278f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1382df6150fed00f28d0455f712741d76cb842d21059864ea33e53f3648278f", kill_on_drop: false }`
[INFO] [stdout] d1382df6150fed00f28d0455f712741d76cb842d21059864ea33e53f3648278f