[INFO] crate epub-builder 0.4.4 is already in cache
[INFO] checking epub-builder-0.4.4 against try#bcff76bad586cfb6874f179a4b66448e6b8a832c for pr-66919
[INFO] extracting crate epub-builder 0.4.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate epub-builder 0.4.4 on toolchain bcff76bad586cfb6874f179a4b66448e6b8a832c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate epub-builder 0.4.4
[INFO] finished tweaking crates.io crate epub-builder 0.4.4
[INFO] tweaked toml for crates.io crate epub-builder 0.4.4 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "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=forbid" "-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" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b4cf879735d5dea4708be11111de51cd29b109f0ae34b35b72b44800c8d70f9a
[INFO] running `"docker" "start" "-a" "b4cf879735d5dea4708be11111de51cd29b109f0ae34b35b72b44800c8d70f9a"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]     Checking epub-builder v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     foreign_links {
[INFO] [stderr] 9  | |         Fmt(::std::fmt::Error);
[INFO] [stderr] 10 | |     }
[INFO] [stderr] 11 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     foreign_links {
[INFO] [stderr] 9  | |         Fmt(::std::fmt::Error);
[INFO] [stderr] 10 | |     }
[INFO] [stderr] 11 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.99s
[INFO] running `"docker" "inspect" "b4cf879735d5dea4708be11111de51cd29b109f0ae34b35b72b44800c8d70f9a"`
[INFO] running `"docker" "rm" "-f" "b4cf879735d5dea4708be11111de51cd29b109f0ae34b35b72b44800c8d70f9a"`
[INFO] [stdout] b4cf879735d5dea4708be11111de51cd29b109f0ae34b35b72b44800c8d70f9a