[INFO] updating cached repository https://github.com/AlephNotation/dsfs-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32bea73d91db1160d7bb46ec53f876455d211da3
[INFO] testing AlephNotation/dsfs-rust against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlephNotation%2Fdsfs-rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlephNotation/dsfs-rust on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlephNotation/dsfs-rust
[INFO] finished tweaking git repo https://github.com/AlephNotation/dsfs-rust
[INFO] tweaked toml for git repo https://github.com/AlephNotation/dsfs-rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/AlephNotation/dsfs-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ff55d6c491b7203e26da6c42712619f9f039c7e4b1cadf27c1abeecc3b7ee73
[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" "8ff55d6c491b7203e26da6c42712619f9f039c7e4b1cadf27c1abeecc3b7ee73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ff55d6c491b7203e26da6c42712619f9f039c7e4b1cadf27c1abeecc3b7ee73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ff55d6c491b7203e26da6c42712619f9f039c7e4b1cadf27c1abeecc3b7ee73", kill_on_drop: false }`
[INFO] [stdout] 8ff55d6c491b7203e26da6c42712619f9f039c7e4b1cadf27c1abeecc3b7ee73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6600564a91a071f70e07812bcbda1da02da0a8ae0fc4adb2886333a686bcb9ae
[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" "6600564a91a071f70e07812bcbda1da02da0a8ae0fc4adb2886333a686bcb9ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.2.5
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling dsfs-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Float`
[INFO] [stdout]  --> src/linear_algebra.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num::{Float, Num};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.74s
[INFO] running `Command { std: "docker" "inspect" "6600564a91a071f70e07812bcbda1da02da0a8ae0fc4adb2886333a686bcb9ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6600564a91a071f70e07812bcbda1da02da0a8ae0fc4adb2886333a686bcb9ae", kill_on_drop: false }`
[INFO] [stdout] 6600564a91a071f70e07812bcbda1da02da0a8ae0fc4adb2886333a686bcb9ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 225912f30a2fb320a030f2befd48d130e8fb1caac0bc3a1b3ed4126c0661dde2
[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" "225912f30a2fb320a030f2befd48d130e8fb1caac0bc3a1b3ed4126c0661dde2", kill_on_drop: false }`
[INFO] [stderr]    Compiling dsfs-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Float`
[INFO] [stdout]  --> src/linear_algebra.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num::{Float, Num};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Float`
[INFO] [stdout]  --> src/linear_algebra.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num::{Float, Num};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "225912f30a2fb320a030f2befd48d130e8fb1caac0bc3a1b3ed4126c0661dde2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "225912f30a2fb320a030f2befd48d130e8fb1caac0bc3a1b3ed4126c0661dde2", kill_on_drop: false }`
[INFO] [stdout] 225912f30a2fb320a030f2befd48d130e8fb1caac0bc3a1b3ed4126c0661dde2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 05d97010394580c9ef366cba5a394e9f6375a379a3da106ccc3d4944070ef87a
[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" "05d97010394580c9ef366cba5a394e9f6375a379a3da106ccc3d4944070ef87a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Float`
[INFO] [stderr]  --> src/linear_algebra.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use num::{Float, Num};
[INFO] [stderr]   |           ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Float`
[INFO] [stderr]  --> src/linear_algebra.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use num::{Float, Num};
[INFO] [stderr]   |           ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dsfs_rust-a6dc0d4959295735
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test linear_algebra::tests::test_subtract ... ok
[INFO] [stdout] test linear_algebra::tests::test_add ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dsfs-rust
[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 `Command { std: "docker" "inspect" "05d97010394580c9ef366cba5a394e9f6375a379a3da106ccc3d4944070ef87a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05d97010394580c9ef366cba5a394e9f6375a379a3da106ccc3d4944070ef87a", kill_on_drop: false }`
[INFO] [stdout] 05d97010394580c9ef366cba5a394e9f6375a379a3da106ccc3d4944070ef87a