[INFO] fetching crate zlo 0.1.0...
[INFO] checking zlo-0.1.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate zlo 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate zlo 0.1.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zlo 0.1.0
[INFO] finished tweaking crates.io crate zlo 0.1.0
[INFO] tweaked toml for crates.io crate zlo 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22f605f7115d3b54dd525dd0f5efe76ea1a4a7428ea59d4820a9d2bd9d4bb3da
[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" "22f605f7115d3b54dd525dd0f5efe76ea1a4a7428ea59d4820a9d2bd9d4bb3da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22f605f7115d3b54dd525dd0f5efe76ea1a4a7428ea59d4820a9d2bd9d4bb3da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f605f7115d3b54dd525dd0f5efe76ea1a4a7428ea59d4820a9d2bd9d4bb3da", kill_on_drop: false }`
[INFO] [stdout] 22f605f7115d3b54dd525dd0f5efe76ea1a4a7428ea59d4820a9d2bd9d4bb3da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93088f016c035d88a4b94c6a28fe562ef619e4d22219ba9b57fbffdb811c7b35
[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" "93088f016c035d88a4b94c6a28fe562ef619e4d22219ba9b57fbffdb811c7b35", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]     Checking zlo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/de/mod.rs:84:24
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let w = if a { (self.store >> self.shift) } else { 0 }
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/de/mod.rs:85:28
[INFO] [stdout]    |
[INFO] [stdout] 85 |             | (s << if a { (8 - self.shift) } else { 0 });
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:434:29
[INFO] [stdout]     |
[INFO] [stdout] 434 |                 let value = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stdout]     |                             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:79:32
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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/lib.rs:70:35
[INFO] [stdout]    |
[INFO] [stdout] 70 |             Error::Io(ref err) => error::Error::description(err),
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `zlo::Infinite`
[INFO] [stdout]  --> examples/float_delta.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use zlo::Infinite;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `zlo::deserialize`
[INFO] [stdout]  --> examples/float_delta.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use zlo::deserialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `zlo::serialize`
[INFO] [stdout]  --> examples/float_delta.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use zlo::serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `f32_diff`
[INFO] [stdout]  --> examples/float_delta.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn f32_diff(a: f32, b: f32) -> f32 {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `f64_diff`
[INFO] [stdout]   --> examples/float_delta.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn f64_diff(a: f64, b: f64) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/de/mod.rs:84:24
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let w = if a { (self.store >> self.shift) } else { 0 }
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/de/mod.rs:85:28
[INFO] [stdout]    |
[INFO] [stdout] 85 |             | (s << if a { (8 - self.shift) } else { 0 });
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:434:29
[INFO] [stdout]     |
[INFO] [stdout] 434 |                 let value = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stdout]     |                             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:79:32
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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/lib.rs:70:35
[INFO] [stdout]    |
[INFO] [stdout] 70 |             Error::Io(ref err) => error::Error::description(err),
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/test.rs:193:6
[INFO] [stdout]     |
[INFO] [stdout] 193 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.02s
[INFO] running `Command { std: "docker" "inspect" "93088f016c035d88a4b94c6a28fe562ef619e4d22219ba9b57fbffdb811c7b35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93088f016c035d88a4b94c6a28fe562ef619e4d22219ba9b57fbffdb811c7b35", kill_on_drop: false }`
[INFO] [stdout] 93088f016c035d88a4b94c6a28fe562ef619e4d22219ba9b57fbffdb811c7b35