[INFO] fetching crate zerocopy 0.8.27...
[INFO] checking zerocopy-0.8.27 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] extracting crate zerocopy 0.8.27 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate zerocopy 0.8.27
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate zerocopy 0.8.27
[INFO] tweaked toml for crates.io crate zerocopy 0.8.27 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate zerocopy 0.8.27 on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate zerocopy 0.8.27 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winapi-util v0.1.8
[INFO] [stderr]   Downloaded proc-macro2 v1.0.101
[INFO] [stderr]   Downloaded once_cell v1.9.0
[INFO] [stderr]   Downloaded elain v0.3.1
[INFO] [stderr]   Downloaded rustversion v1.0.22
[INFO] [stderr]   Downloaded basic-toml v0.1.10
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.27
[INFO] [stderr]   Downloaded trybuild v1.0.89
[INFO] [stderr]   Downloaded dissimilar v1.0.10
[INFO] [stderr]   Downloaded itertools v0.11.0
[INFO] [stderr]   Downloaded syn v2.0.106
[INFO] [stderr]   Downloaded serde_json v1.0.143
[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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc1321c656740bf472ea9e917264d89c7d697cefd389ef056626f4956e6ce688
[INFO] running `Command { std: "docker" "start" "-a" "cc1321c656740bf472ea9e917264d89c7d697cefd389ef056626f4956e6ce688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc1321c656740bf472ea9e917264d89c7d697cefd389ef056626f4956e6ce688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc1321c656740bf472ea9e917264d89c7d697cefd389ef056626f4956e6ce688", kill_on_drop: false }`
[INFO] [stdout] cc1321c656740bf472ea9e917264d89c7d697cefd389ef056626f4956e6ce688
[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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2179997fe6fe7792f74ce9244794419bbbc0dce904afb78f9dd204037e66f930
[INFO] running `Command { std: "docker" "start" "-a" "2179997fe6fe7792f74ce9244794419bbbc0dce904afb78f9dd204037e66f930", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling trybuild v1.0.89
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]    Compiling zerocopy v0.8.27 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking dissimilar v1.0.10
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking elain v0.3.1
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/error.rs:200:43
[INFO] [stdout]     |
[INFO] [stdout] 200 |             ConvertError::Alignment(e) => ConvertError::Alignment(Infallible::from(e)),
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^-------------------^
[INFO] [stdout]     |                                           |                       |
[INFO] [stdout]     |                                           |                       any code following this expression is unreachable
[INFO] [stdout]     |                                           unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]    --> src/error.rs:200:67
[INFO] [stdout]     |
[INFO] [stdout] 200 |             ConvertError::Alignment(e) => ConvertError::Alignment(Infallible::from(e)),
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking basic-toml v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stdout] warning: use of deprecated constant `_::_WARNING`: some tests may be skipped due to missing RUSTFLAGS="--cfg __ZEROCOPY_INTERNAL_USE_ONLY_NIGHTLY_FEATURES_IN_TESTS"
[INFO] [stdout]    --> src/lib.rs:429:5
[INFO] [stdout]     |
[INFO] [stdout] 429 |     _WARNING
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:428:12
[INFO] [stdout]     |
[INFO] [stdout] 428 |     #[warn(deprecated)]
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/error.rs:200:43
[INFO] [stdout]     |
[INFO] [stdout] 200 |             ConvertError::Alignment(e) => ConvertError::Alignment(Infallible::from(e)),
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^-------------------^
[INFO] [stdout]     |                                           |                       |
[INFO] [stdout]     |                                           |                       any code following this expression is unreachable
[INFO] [stdout]     |                                           unreachable expression
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]    --> src/error.rs:200:67
[INFO] [stdout]     |
[INFO] [stdout] 200 |             ConvertError::Alignment(e) => ConvertError::Alignment(Infallible::from(e)),
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.24s
[INFO] running `Command { std: "docker" "inspect" "2179997fe6fe7792f74ce9244794419bbbc0dce904afb78f9dd204037e66f930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2179997fe6fe7792f74ce9244794419bbbc0dce904afb78f9dd204037e66f930", kill_on_drop: false }`
[INFO] [stdout] 2179997fe6fe7792f74ce9244794419bbbc0dce904afb78f9dd204037e66f930