[INFO] fetching crate lsns 0.0.3...
[INFO] checking lsns-0.0.3 against try#ff4041081a39fb2e940a03a55f86a4ad0b37d26a for pr-80763
[INFO] extracting crate lsns 0.0.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate lsns 0.0.3 on toolchain ff4041081a39fb2e940a03a55f86a4ad0b37d26a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff4041081a39fb2e940a03a55f86a4ad0b37d26a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lsns 0.0.3
[INFO] finished tweaking crates.io crate lsns 0.0.3
[INFO] tweaked toml for crates.io crate lsns 0.0.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff4041081a39fb2e940a03a55f86a4ad0b37d26a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff4041081a39fb2e940a03a55f86a4ad0b37d26a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+ff4041081a39fb2e940a03a55f86a4ad0b37d26a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe4e7081687c2e2f556bf34f4c5d47b7e573dd761769193dc07484ce5aa91541
[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" "fe4e7081687c2e2f556bf34f4c5d47b7e573dd761769193dc07484ce5aa91541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe4e7081687c2e2f556bf34f4c5d47b7e573dd761769193dc07484ce5aa91541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe4e7081687c2e2f556bf34f4c5d47b7e573dd761769193dc07484ce5aa91541", kill_on_drop: false }`
[INFO] [stdout] fe4e7081687c2e2f556bf34f4c5d47b7e573dd761769193dc07484ce5aa91541
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+ff4041081a39fb2e940a03a55f86a4ad0b37d26a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e32769f958540ff97f6da2c55c8263604a660893f2e798aabeeb8e01e1ee2c6d
[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" "e32769f958540ff97f6da2c55c8263604a660893f2e798aabeeb8e01e1ee2c6d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]    Compiling procinfo v0.3.1
[INFO] [stderr]     Checking nix v0.4.3
[INFO] [stdout] error[E0365]: `libc` is private, and cannot be re-exported
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.4.3/src/sys/ioctl/mod.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub use ::libc as libc;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ re-export of private `libc`
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider declaring type or module `libc` with `pub`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0365`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nix`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e32769f958540ff97f6da2c55c8263604a660893f2e798aabeeb8e01e1ee2c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e32769f958540ff97f6da2c55c8263604a660893f2e798aabeeb8e01e1ee2c6d", kill_on_drop: false }`
[INFO] [stdout] e32769f958540ff97f6da2c55c8263604a660893f2e798aabeeb8e01e1ee2c6d