[INFO] fetching crate pflock 0.2.0...
[INFO] checking pflock-0.2.0 against 1.95.0 for pr-155915
[INFO] extracting crate pflock 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate pflock 0.2.0
[INFO] finished tweaking crates.io crate pflock 0.2.0
[INFO] tweaked toml for crates.io crate pflock 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pflock 0.2.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24a185367efb1c1b0cbc1f072e55838ff9901e3894be157a22f3c4b42a09a7c6
[INFO] running `Command { std: "docker" "start" "-a" "24a185367efb1c1b0cbc1f072e55838ff9901e3894be157a22f3c4b42a09a7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24a185367efb1c1b0cbc1f072e55838ff9901e3894be157a22f3c4b42a09a7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24a185367efb1c1b0cbc1f072e55838ff9901e3894be157a22f3c4b42a09a7c6", kill_on_drop: false }`
[INFO] [stdout] 24a185367efb1c1b0cbc1f072e55838ff9901e3894be157a22f3c4b42a09a7c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2b3e42f4bcb8bf9db65ff90f8b0121ea31f1d4689dce0ab32d3a67600146555
[INFO] running `Command { std: "docker" "start" "-a" "c2b3e42f4bcb8bf9db65ff90f8b0121ea31f1d4689dce0ab32d3a67600146555", kill_on_drop: false }`
[INFO] [stderr]     Checking pflock v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/read_write.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(div_duration)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `div_duration` has been stable since 1.80.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> tests/read_write.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(div_duration)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pflock` (test "read_write") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unexpected `cfg` condition value: `serde`
[INFO] [stdout]   --> tests/ported.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(feature = "serde")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `serde` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `serde`
[INFO] [stdout]    --> tests/ported.rs:287:7
[INFO] [stdout]     |
[INFO] [stdout] 287 | #[cfg(feature = "serde")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `serde` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c2b3e42f4bcb8bf9db65ff90f8b0121ea31f1d4689dce0ab32d3a67600146555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2b3e42f4bcb8bf9db65ff90f8b0121ea31f1d4689dce0ab32d3a67600146555", kill_on_drop: false }`
[INFO] [stdout] c2b3e42f4bcb8bf9db65ff90f8b0121ea31f1d4689dce0ab32d3a67600146555
