[INFO] fetching crate lazy_transducer 0.2.1...
[INFO] testing lazy_transducer-0.2.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate lazy_transducer 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate lazy_transducer 0.2.1 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 lazy_transducer 0.2.1
[INFO] finished tweaking crates.io crate lazy_transducer 0.2.1
[INFO] tweaked toml for crates.io crate lazy_transducer 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate lazy_transducer 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scroll_derive v0.10.1
[INFO] [stderr]   Downloaded memoffset v0.5.3
[INFO] [stderr]   Downloaded scroll v0.10.1
[INFO] [stderr]   Downloaded thiserror v1.0.11
[INFO] [stderr]   Downloaded thiserror-impl v1.0.11
[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] 37ea081ba7f22074415c81041279a67db05a2ad3e0b5ba1e10326a6c1c1b4c8e
[INFO] running `Command { std: "docker" "start" "-a" "37ea081ba7f22074415c81041279a67db05a2ad3e0b5ba1e10326a6c1c1b4c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37ea081ba7f22074415c81041279a67db05a2ad3e0b5ba1e10326a6c1c1b4c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ea081ba7f22074415c81041279a67db05a2ad3e0b5ba1e10326a6c1c1b4c8e", kill_on_drop: false }`
[INFO] [stdout] 37ea081ba7f22074415c81041279a67db05a2ad3e0b5ba1e10326a6c1c1b4c8e
[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] [stdout] 5bf59fad48beab6b7f13eff0c9e06b9e16bb8efeb697c492272dc4ffbb00e791
[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" "5bf59fad48beab6b7f13eff0c9e06b9e16bb8efeb697c492272dc4ffbb00e791", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror-impl v1.0.11
[INFO] [stderr]    Compiling thiserror v1.0.11
[INFO] [stderr]    Compiling lazy_transducer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `Command { std: "docker" "inspect" "5bf59fad48beab6b7f13eff0c9e06b9e16bb8efeb697c492272dc4ffbb00e791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bf59fad48beab6b7f13eff0c9e06b9e16bb8efeb697c492272dc4ffbb00e791", kill_on_drop: false }`
[INFO] [stdout] 5bf59fad48beab6b7f13eff0c9e06b9e16bb8efeb697c492272dc4ffbb00e791
[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] [stdout] 57b6c936701077e40709d7a2cee2164d1e6c53f672c4986ca6f1abdf2ddf6f27
[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" "57b6c936701077e40709d7a2cee2164d1e6c53f672c4986ca6f1abdf2ddf6f27", kill_on_drop: false }`
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]    Compiling scroll v0.10.1
[INFO] [stderr]    Compiling lazy_transducer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `LE`
[INFO] [stdout]  --> tests/test.rs:4:60
[INFO] [stdout]   |
[INFO] [stdout] 4 | use scroll::{IOread, IOwrite, Pread, Pwrite, SizeWith, BE, LE};
[INFO] [stdout]   |                                                            ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Cursor`
[INFO] [stdout]  --> tests/test.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::Cursor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `Command { std: "docker" "inspect" "57b6c936701077e40709d7a2cee2164d1e6c53f672c4986ca6f1abdf2ddf6f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57b6c936701077e40709d7a2cee2164d1e6c53f672c4986ca6f1abdf2ddf6f27", kill_on_drop: false }`
[INFO] [stdout] 57b6c936701077e40709d7a2cee2164d1e6c53f672c4986ca6f1abdf2ddf6f27
[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] [stdout] 04ae262fe7807b8b9f491613265514e17e910c6b36eb51706daedcb1444084de
[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" "04ae262fe7807b8b9f491613265514e17e910c6b36eb51706daedcb1444084de", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `LE`
[INFO] [stderr]  --> tests/test.rs:4:60
[INFO] [stderr]   |
[INFO] [stderr] 4 | use scroll::{IOread, IOwrite, Pread, Pwrite, SizeWith, BE, LE};
[INFO] [stderr]   |                                                            ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Cursor`
[INFO] [stderr]  --> tests/test.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::Cursor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `lazy_transducer` (test "test") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lazy_transducer-a6969e97b5dcdaa2)
[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 tests/test.rs (/opt/rustwide/target/debug/deps/test-1a60373dbc7bf332)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test lifetime_transducer ... ok
[INFO] [stdout] test basic_transducer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lazy_transducer
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lazy_transducer.rs - lazy_transducer::LazyTransducer::get (line 147) ... ok
[INFO] [stdout] test src/lazy_transducer.rs - lazy_transducer::LazyTransducer (line 31) ... ok
[INFO] [stdout] test src/lazy_transducer.rs - lazy_transducer::LazyTransducer::new (line 128) ... ok
[INFO] [stdout] test src/builder.rs - builder::Builder (line 16) ... ok
[INFO] [stdout] test src/lib.rs - (line 38) ... ok
[INFO] [stdout] test src/lazy_transducer.rs - lazy_transducer::LazyTransducer (line 53) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.52s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "04ae262fe7807b8b9f491613265514e17e910c6b36eb51706daedcb1444084de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04ae262fe7807b8b9f491613265514e17e910c6b36eb51706daedcb1444084de", kill_on_drop: false }`
[INFO] [stdout] 04ae262fe7807b8b9f491613265514e17e910c6b36eb51706daedcb1444084de