[INFO] fetching crate fixed_len_str 0.3.3...
[INFO] testing fixed_len_str-0.3.3 against 1.44.0 for beta-1.45-1
[INFO] extracting crate fixed_len_str 0.3.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate fixed_len_str 0.3.3 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate fixed_len_str 0.3.3
[INFO] finished tweaking crates.io crate fixed_len_str 0.3.3
[INFO] tweaked toml for crates.io crate fixed_len_str 0.3.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ded685e82784af6a127a2e7e1f13f1621af67c42eaf05a32b0c115b7b794e26c
[INFO] running `"docker" "start" "-a" "ded685e82784af6a127a2e7e1f13f1621af67c42eaf05a32b0c115b7b794e26c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling fixed_len_str v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "ded685e82784af6a127a2e7e1f13f1621af67c42eaf05a32b0c115b7b794e26c"`
[INFO] running `"docker" "rm" "-f" "ded685e82784af6a127a2e7e1f13f1621af67c42eaf05a32b0c115b7b794e26c"`
[INFO] [stdout] ded685e82784af6a127a2e7e1f13f1621af67c42eaf05a32b0c115b7b794e26c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 909216da82fe3dc79753b4a67a77a60556f7de76c61a16f010aaf794cd085037
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "909216da82fe3dc79753b4a67a77a60556f7de76c61a16f010aaf794cd085037"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling fixed_len_str v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `fixed_str_nz3::Closure`
[INFO] [stderr]  --> tests/a.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use fixed_str_nz3::Closure;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `Closure` in `fixed_str_nz3`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> tests/a.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(pattern)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `fixed_len_str`.
[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 `"docker" "inspect" "909216da82fe3dc79753b4a67a77a60556f7de76c61a16f010aaf794cd085037"`
[INFO] running `"docker" "rm" "-f" "909216da82fe3dc79753b4a67a77a60556f7de76c61a16f010aaf794cd085037"`
[INFO] [stdout] 909216da82fe3dc79753b4a67a77a60556f7de76c61a16f010aaf794cd085037