[INFO] fetching crate lad 0.1.1...
[INFO] testing lad-0.1.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate lad 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate lad 0.1.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lad 0.1.1
[INFO] finished tweaking crates.io crate lad 0.1.1
[INFO] tweaked toml for crates.io crate lad 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] 69ae29b6b59e63e1a86081f8afac4e0b5dee6efa1d535495c3703778abf3faf3
[INFO] running `Command { std: "docker" "start" "-a" "69ae29b6b59e63e1a86081f8afac4e0b5dee6efa1d535495c3703778abf3faf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69ae29b6b59e63e1a86081f8afac4e0b5dee6efa1d535495c3703778abf3faf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69ae29b6b59e63e1a86081f8afac4e0b5dee6efa1d535495c3703778abf3faf3", kill_on_drop: false }`
[INFO] [stdout] 69ae29b6b59e63e1a86081f8afac4e0b5dee6efa1d535495c3703778abf3faf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", 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] 17274127b31ed052a06a39e6c91d370a8c3f84741058dd927becb5bb80faf7c2
[INFO] running `Command { std: "docker" "start" "-a" "17274127b31ed052a06a39e6c91d370a8c3f84741058dd927becb5bb80faf7c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling lad v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `tmp_entry` is never read
[INFO] [stdout]   --> src/wad/mod.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut tmp_entry = DirEntry {
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "17274127b31ed052a06a39e6c91d370a8c3f84741058dd927becb5bb80faf7c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17274127b31ed052a06a39e6c91d370a8c3f84741058dd927becb5bb80faf7c2", kill_on_drop: false }`
[INFO] [stdout] 17274127b31ed052a06a39e6c91d370a8c3f84741058dd927becb5bb80faf7c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", 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] 78777d22189fdf29d77193aca865c83f06907105850f2331b940051dd88ca696
[INFO] running `Command { std: "docker" "start" "-a" "78777d22189fdf29d77193aca865c83f06907105850f2331b940051dd88ca696", kill_on_drop: false }`
[INFO] [stdout] warning: value assigned to `tmp_entry` is never read
[INFO] [stdout]   --> src/wad/mod.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut tmp_entry = DirEntry {
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lad v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/lib.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         use std::fs::File;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]   --> src/lib.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |         use std::io::Write;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `tmp_entry` is never read
[INFO] [stdout]   --> src/wad/mod.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut tmp_entry = DirEntry {
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "78777d22189fdf29d77193aca865c83f06907105850f2331b940051dd88ca696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78777d22189fdf29d77193aca865c83f06907105850f2331b940051dd88ca696", kill_on_drop: false }`
[INFO] [stdout] 78777d22189fdf29d77193aca865c83f06907105850f2331b940051dd88ca696
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", 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] 485f52c4438ee6bf7a78cf62b5fb8398a3f03ebf98a10324409602606b29aa3d
[INFO] running `Command { std: "docker" "start" "-a" "485f52c4438ee6bf7a78cf62b5fb8398a3f03ebf98a10324409602606b29aa3d", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `tmp_entry` is never read
[INFO] [stderr]   --> src/wad/mod.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut tmp_entry = DirEntry {
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `lad` (lib) generated 1 warning
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]   --> src/lib.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |         use std::fs::File;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]   --> src/lib.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |         use std::io::Write;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `lad` (lib test) generated 3 warnings (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lad-fe46f673d9df9f39)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::read ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lad
[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" "485f52c4438ee6bf7a78cf62b5fb8398a3f03ebf98a10324409602606b29aa3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "485f52c4438ee6bf7a78cf62b5fb8398a3f03ebf98a10324409602606b29aa3d", kill_on_drop: false }`
[INFO] [stdout] 485f52c4438ee6bf7a78cf62b5fb8398a3f03ebf98a10324409602606b29aa3d