[INFO] cloning repository https://github.com/kadtewsd/algorithm [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kadtewsd/algorithm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkadtewsd%2Falgorithm", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkadtewsd%2Falgorithm'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f25dca70fdd362964df4b4609064f9eccbad6c55 [INFO] testing kadtewsd/algorithm against 1.75.0 for beta-1.76-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkadtewsd%2Falgorithm" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kadtewsd/algorithm on toolchain 1.75.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kadtewsd/algorithm [INFO] finished tweaking git repo https://github.com/kadtewsd/algorithm [INFO] tweaked toml for git repo https://github.com/kadtewsd/algorithm written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/kadtewsd/algorithm already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e24e6dd0257e562878e0b7f2dbfde456db6329a155417dbe8b08bac3b17a12cd [INFO] running `Command { std: "docker" "start" "-a" "e24e6dd0257e562878e0b7f2dbfde456db6329a155417dbe8b08bac3b17a12cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e24e6dd0257e562878e0b7f2dbfde456db6329a155417dbe8b08bac3b17a12cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e24e6dd0257e562878e0b7f2dbfde456db6329a155417dbe8b08bac3b17a12cd", kill_on_drop: false }` [INFO] [stdout] e24e6dd0257e562878e0b7f2dbfde456db6329a155417dbe8b08bac3b17a12cd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 14fd951e78c7bced0ee2a3bbf13456b991aa7aa3c0d17ea66638a8c8895aa3c7 [INFO] running `Command { std: "docker" "start" "-a" "14fd951e78c7bced0ee2a3bbf13456b991aa7aa3c0d17ea66638a8c8895aa3c7", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.2 [INFO] [stderr] Compiling libc v0.2.40 [INFO] [stderr] Compiling rand v0.4.2 [INFO] [stderr] Compiling num-integer v0.1.36 [INFO] [stderr] Compiling num-complex v0.1.43 [INFO] [stderr] Compiling num-iter v0.1.35 [INFO] [stderr] Compiling num-bigint v0.1.43 [INFO] [stderr] Compiling num-rational v0.1.42 [INFO] [stderr] Compiling num v0.1.42 [INFO] [stderr] Compiling algorithm v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/search/first_step.rs:13:17 [INFO] [stdout] | [INFO] [stdout] 13 | (rate[j] - rate[i]) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 13 - (rate[j] - rate[i]) [INFO] [stdout] 13 + rate[j] - rate[i] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.73s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4` [INFO] running `Command { std: "docker" "inspect" "14fd951e78c7bced0ee2a3bbf13456b991aa7aa3c0d17ea66638a8c8895aa3c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14fd951e78c7bced0ee2a3bbf13456b991aa7aa3c0d17ea66638a8c8895aa3c7", kill_on_drop: false }` [INFO] [stdout] 14fd951e78c7bced0ee2a3bbf13456b991aa7aa3c0d17ea66638a8c8895aa3c7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 097b948a9f93ac2f3d151c7ea2a70c027464c286dc405ff76459f01a0767e64f [INFO] running `Command { std: "docker" "start" "-a" "097b948a9f93ac2f3d151c7ea2a70c027464c286dc405ff76459f01a0767e64f", kill_on_drop: false }` [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/search/first_step.rs:13:17 [INFO] [stdout] | [INFO] [stdout] 13 | (rate[j] - rate[i]) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 13 - (rate[j] - rate[i]) [INFO] [stdout] 13 + rate[j] - rate[i] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling algorithm v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/search/first_step.rs:13:17 [INFO] [stdout] | [INFO] [stdout] 13 | (rate[j] - rate[i]) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 13 - (rate[j] - rate[i]) [INFO] [stdout] 13 + rate[j] - rate[i] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.57s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4` [INFO] running `Command { std: "docker" "inspect" "097b948a9f93ac2f3d151c7ea2a70c027464c286dc405ff76459f01a0767e64f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "097b948a9f93ac2f3d151c7ea2a70c027464c286dc405ff76459f01a0767e64f", kill_on_drop: false }` [INFO] [stdout] 097b948a9f93ac2f3d151c7ea2a70c027464c286dc405ff76459f01a0767e64f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5cf954d54872709e116df9e38bee1f8f200eae880c04f4a4616ddc8ca711ab58 [INFO] running `Command { std: "docker" "start" "-a" "5cf954d54872709e116df9e38bee1f8f200eae880c04f4a4616ddc8ca711ab58", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/search/first_step.rs:13:17 [INFO] [stderr] | [INFO] [stderr] 13 | (rate[j] - rate[i]) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 13 - (rate[j] - rate[i]) [INFO] [stderr] 13 + rate[j] - rate[i] [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `algorithm` (lib) generated 1 warning (run `cargo fix --lib -p algorithm` to apply 1 suggestion) [INFO] [stderr] warning: `algorithm` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4` [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/algorithm-f4ef2f850ee2c26e) [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/algorithm-f1a2de454c158ad1) [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests algorithm [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/search/first_step.rs:13:17 [INFO] [stderr] | [INFO] [stderr] 13 | (rate[j] - rate[i]) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 13 - (rate[j] - rate[i]) [INFO] [stderr] 13 + rate[j] - rate[i] [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "5cf954d54872709e116df9e38bee1f8f200eae880c04f4a4616ddc8ca711ab58", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5cf954d54872709e116df9e38bee1f8f200eae880c04f4a4616ddc8ca711ab58", kill_on_drop: false }` [INFO] [stdout] 5cf954d54872709e116df9e38bee1f8f200eae880c04f4a4616ddc8ca711ab58 [INFO] testing kadtewsd/algorithm against beta-2024-01-09 for beta-1.76-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkadtewsd%2Falgorithm" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kadtewsd/algorithm on toolchain beta-2024-01-09 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-01-09" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kadtewsd/algorithm [INFO] finished tweaking git repo https://github.com/kadtewsd/algorithm [INFO] tweaked toml for git repo https://github.com/kadtewsd/algorithm written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/kadtewsd/algorithm already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-01-09" "fetch" "--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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-01-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a53fe04a18a0576136b9b05052c9d7779ea8ab2da5741a50c065d1447a226fff [INFO] running `Command { std: "docker" "start" "-a" "a53fe04a18a0576136b9b05052c9d7779ea8ab2da5741a50c065d1447a226fff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a53fe04a18a0576136b9b05052c9d7779ea8ab2da5741a50c065d1447a226fff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a53fe04a18a0576136b9b05052c9d7779ea8ab2da5741a50c065d1447a226fff", kill_on_drop: false }` [INFO] [stdout] a53fe04a18a0576136b9b05052c9d7779ea8ab2da5741a50c065d1447a226fff [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-01-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 446f73c0da16ebe14d0dc76fa6ca36863410e887dd6941f3a36d29c9727518d8 [INFO] running `Command { std: "docker" "start" "-a" "446f73c0da16ebe14d0dc76fa6ca36863410e887dd6941f3a36d29c9727518d8", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.2 [INFO] [stderr] Compiling libc v0.2.40 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5 [INFO] [stdout] | [INFO] [stdout] 1155 | fn decode(d: &mut D) -> Result, D::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | the parameter type `T` must be valid for the static lifetime... [INFO] [stdout] | ...so that the type `T` will meet its required lifetime bounds... [INFO] [stdout] | [INFO] [stdout] note: ...that is required by this bound [INFO] [stdout] --> /rustc/650745ceb2ae60e04f8cd7bfb671fc37239533e4/library/alloc/src/borrow.rs:180:30 [INFO] [stdout] help: consider adding an explicit lifetime bound [INFO] [stdout] | [INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rand v0.4.2 [INFO] [stderr] Compiling num-integer v0.1.36 [INFO] [stderr] Compiling num-iter v0.1.35 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0310`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "446f73c0da16ebe14d0dc76fa6ca36863410e887dd6941f3a36d29c9727518d8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "446f73c0da16ebe14d0dc76fa6ca36863410e887dd6941f3a36d29c9727518d8", kill_on_drop: false }` [INFO] [stdout] 446f73c0da16ebe14d0dc76fa6ca36863410e887dd6941f3a36d29c9727518d8