[INFO] fetching crate ptah 0.0.0...
[INFO] testing ptah-0.0.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate ptah 0.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ptah 0.0.0 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 ptah 0.0.0
[INFO] finished tweaking crates.io crate ptah 0.0.0
[INFO] tweaked toml for crates.io crate ptah 0.0.0 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] 7ab6e0a5bd09cc643cb8a59f708da87b5313d7a9228bf3600a41763c450b6d2f
[INFO] running `"docker" "start" "-a" "7ab6e0a5bd09cc643cb8a59f708da87b5313d7a9228bf3600a41763c450b6d2f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling ptah v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `formatter`
[INFO] [stderr]   --> src/lib.rs:38:19
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]    |                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formatter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]   --> src/lib.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | type Result<T> = core::result::Result<T, Error>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.22s
[INFO] running `"docker" "inspect" "7ab6e0a5bd09cc643cb8a59f708da87b5313d7a9228bf3600a41763c450b6d2f"`
[INFO] running `"docker" "rm" "-f" "7ab6e0a5bd09cc643cb8a59f708da87b5313d7a9228bf3600a41763c450b6d2f"`
[INFO] [stdout] 7ab6e0a5bd09cc643cb8a59f708da87b5313d7a9228bf3600a41763c450b6d2f
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5765236557fa21a339ffdc69c0cc515f5c54b031ee7360cb855fda41de126e91
[INFO] running `"docker" "start" "-a" "5765236557fa21a339ffdc69c0cc515f5c54b031ee7360cb855fda41de126e91"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling ptah v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `formatter`
[INFO] [stderr]   --> src/lib.rs:38:19
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]    |                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formatter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]   --> src/lib.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | type Result<T> = core::result::Result<T, Error>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `formatter`
[INFO] [stderr]   --> src/lib.rs:38:19
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]    |                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formatter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]   --> src/lib.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | type Result<T> = core::result::Result<T, Error>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "5765236557fa21a339ffdc69c0cc515f5c54b031ee7360cb855fda41de126e91"`
[INFO] running `"docker" "rm" "-f" "5765236557fa21a339ffdc69c0cc515f5c54b031ee7360cb855fda41de126e91"`
[INFO] [stdout] 5765236557fa21a339ffdc69c0cc515f5c54b031ee7360cb855fda41de126e91
[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"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3aec02bfcc6489bb324478f9d9104e05e23bbf297cf93c09a0ccb34b69e983aa
[INFO] running `"docker" "start" "-a" "3aec02bfcc6489bb324478f9d9104e05e23bbf297cf93c09a0ccb34b69e983aa"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `formatter`
[INFO] [stderr]   --> src/lib.rs:38:19
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]    |                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formatter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]   --> src/lib.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | type Result<T> = core::result::Result<T, Error>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `formatter`
[INFO] [stderr]   --> src/lib.rs:38:19
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]    |                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formatter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]   --> src/lib.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | type Result<T> = core::result::Result<T, Error>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ptah-fa3a23a7a32d0d75
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ptah
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3aec02bfcc6489bb324478f9d9104e05e23bbf297cf93c09a0ccb34b69e983aa"`
[INFO] running `"docker" "rm" "-f" "3aec02bfcc6489bb324478f9d9104e05e23bbf297cf93c09a0ccb34b69e983aa"`
[INFO] [stdout] 3aec02bfcc6489bb324478f9d9104e05e23bbf297cf93c09a0ccb34b69e983aa