[INFO] fetching crate cstring 0.1.1...
[INFO] checking cstring-0.1.1 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate cstring 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate cstring 0.1.1
[INFO] finished tweaking crates.io crate cstring 0.1.1
[INFO] tweaked toml for crates.io crate cstring 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cstring 0.1.1 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c755b2b08c6d55e8a3a961da8e087eb644fa8084e0473e64e7cfff5a688d66b1
[INFO] running `Command { std: "docker" "start" "-a" "c755b2b08c6d55e8a3a961da8e087eb644fa8084e0473e64e7cfff5a688d66b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c755b2b08c6d55e8a3a961da8e087eb644fa8084e0473e64e7cfff5a688d66b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c755b2b08c6d55e8a3a961da8e087eb644fa8084e0473e64e7cfff5a688d66b1", kill_on_drop: false }`
[INFO] [stdout] c755b2b08c6d55e8a3a961da8e087eb644fa8084e0473e64e7cfff5a688d66b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f080de79d1d6388ee4d35abc093f10fc8a48c20ae30912b16ea28dba6d6a8e24
[INFO] running `Command { std: "docker" "start" "-a" "f080de79d1d6388ee4d35abc093f10fc8a48c20ae30912b16ea28dba6d6a8e24", kill_on_drop: false }`
[INFO] [stderr]     Checking cstring v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0468]: an `extern crate` loading macros must be at the crate root
[INFO] [stdout]   --> src/cstr_core.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate std;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/cstr_core.rs:1128:28
[INFO] [stdout]      |
[INFO] [stdout] 1128 |     pub fn to_string_lossy(&self) -> Cow<str> {
[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] 1128 |     pub fn to_string_lossy(&self) -> Cow<'_, str> {
[INFO] [stdout]      |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0468`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cstring` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f080de79d1d6388ee4d35abc093f10fc8a48c20ae30912b16ea28dba6d6a8e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f080de79d1d6388ee4d35abc093f10fc8a48c20ae30912b16ea28dba6d6a8e24", kill_on_drop: false }`
[INFO] [stdout] f080de79d1d6388ee4d35abc093f10fc8a48c20ae30912b16ea28dba6d6a8e24