[INFO] fetching crate quackin 0.1.1...
[INFO] checking quackin-0.1.1 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate quackin 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate quackin 0.1.1 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quackin 0.1.1
[INFO] finished tweaking crates.io crate quackin 0.1.1
[INFO] tweaked toml for crates.io crate quackin 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sprs v0.4.1
[INFO] [stderr]   Downloaded ndarray v0.6.10
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ee162ccec01fe8edde28aa956dc28941319605c3ad0074f3198e667b690bfa56
[INFO] running `Command { std: "docker" "start" "-a" "ee162ccec01fe8edde28aa956dc28941319605c3ad0074f3198e667b690bfa56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee162ccec01fe8edde28aa956dc28941319605c3ad0074f3198e667b690bfa56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee162ccec01fe8edde28aa956dc28941319605c3ad0074f3198e667b690bfa56", kill_on_drop: false }`
[INFO] [stdout] ee162ccec01fe8edde28aa956dc28941319605c3ad0074f3198e667b690bfa56
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca37b1f0c1916dcbfb1e3b10940f4682bafb5f51c22c409fac257ab2c569118f
[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" "ca37b1f0c1916dcbfb1e3b10940f4682bafb5f51c22c409fac257ab2c569118f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ndarray v0.6.10
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking csv v0.15.0
[INFO] [stderr]     Checking sprs v0.4.1
[INFO] [stderr]     Checking quackin v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/data/mod.rs:109:22
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut reader = try!(csv::Reader::from_file(path)).has_headers(has_headers).delimiter(del);
[INFO] [stdout]     |                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/recommender/mod.rs:40:48
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut pre_vectors = HashMap::<usize, (BTreeMap<usize, f64>)>::new();
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/recommender/mod.rs:95:26
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let user_index = try!(self.user_indices.get(user_id).ok_or("User not found"));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/recommender/mod.rs:96:26
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let item_index = try!(self.item_indices.get(item_id).ok_or("Item not found"));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/data/mod.rs:109:22
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let mut reader = try!(csv::Reader::from_file(path)).has_headers(has_headers).delimiter(del);
[INFO] [stdout]     |                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/recommender/mod.rs:40:48
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut pre_vectors = HashMap::<usize, (BTreeMap<usize, f64>)>::new();
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/recommender/mod.rs:95:26
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let user_index = try!(self.user_indices.get(user_id).ok_or("User not found"));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/recommender/mod.rs:96:26
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let item_index = try!(self.item_indices.get(item_id).ok_or("Item not found"));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.33s
[INFO] running `Command { std: "docker" "inspect" "ca37b1f0c1916dcbfb1e3b10940f4682bafb5f51c22c409fac257ab2c569118f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca37b1f0c1916dcbfb1e3b10940f4682bafb5f51c22c409fac257ab2c569118f", kill_on_drop: false }`
[INFO] [stdout] ca37b1f0c1916dcbfb1e3b10940f4682bafb5f51c22c409fac257ab2c569118f