[INFO] fetching crate septem 1.0.1...
[INFO] checking septem-1.0.1 against beta for pr-78714
[INFO] extracting crate septem 1.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate septem 1.0.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate septem 1.0.1
[INFO] finished tweaking crates.io crate septem 1.0.1
[INFO] tweaked toml for crates.io crate septem 1.0.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6086b41c195097958b5dba302a95ff1bf36f416f26122979415b3dfe86c10509
[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" "6086b41c195097958b5dba302a95ff1bf36f416f26122979415b3dfe86c10509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6086b41c195097958b5dba302a95ff1bf36f416f26122979415b3dfe86c10509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6086b41c195097958b5dba302a95ff1bf36f416f26122979415b3dfe86c10509", kill_on_drop: false }`
[INFO] [stdout] 6086b41c195097958b5dba302a95ff1bf36f416f26122979415b3dfe86c10509
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c03cadbac994e3f2abda9d95d5b8db2f7f4e2a6797eae9da6898a3dce94f2e4c
[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" "c03cadbac994e3f2abda9d95d5b8db2f7f4e2a6797eae9da6898a3dce94f2e4c", kill_on_drop: false }`
[INFO] [stderr]     Checking septem v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:24:61
[INFO] [stdout]    |
[INFO] [stdout] 24 |             InvalidDigit(digit) => write!(f, "{}: {}", self.description(), digit),
[INFO] [stdout]    |                                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:25:63
[INFO] [stdout]    |
[INFO] [stdout] 25 |             InvalidNumber(number) => write!(f, "{}: {}", self.description(), number),
[INFO] [stdout]    |                                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:26:59
[INFO] [stdout]    |
[INFO] [stdout] 26 |             OutOfRange(value) => write!(f, "{}: {}", self.description(), value),
[INFO] [stdout]    |                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:24:61
[INFO] [stdout]    |
[INFO] [stdout] 24 |             InvalidDigit(digit) => write!(f, "{}: {}", self.description(), digit),
[INFO] [stdout]    |                                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:25:63
[INFO] [stdout]    |
[INFO] [stdout] 25 |             InvalidNumber(number) => write!(f, "{}: {}", self.description(), number),
[INFO] [stdout]    |                                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:26:59
[INFO] [stdout]    |
[INFO] [stdout] 26 |             OutOfRange(value) => write!(f, "{}: {}", self.description(), value),
[INFO] [stdout]    |                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `septem`
[INFO] [stdout]  --> benches/convertion.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     use septem::Roman;
[INFO] [stdout]   |         ^^^^^^ maybe a missing crate `septem`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/convertion.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)] 
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `septem`
[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" "c03cadbac994e3f2abda9d95d5b8db2f7f4e2a6797eae9da6898a3dce94f2e4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c03cadbac994e3f2abda9d95d5b8db2f7f4e2a6797eae9da6898a3dce94f2e4c", kill_on_drop: false }`
[INFO] [stdout] c03cadbac994e3f2abda9d95d5b8db2f7f4e2a6797eae9da6898a3dce94f2e4c