[INFO] updating cached repository https://github.com/archer884/value_compressor
[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] bcaf0aa4e748f6b59e1d1e4c8e50f631f38f91ca
[INFO] testing archer884/value_compressor against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fvalue_compressor" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/archer884/value_compressor on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/archer884/value_compressor
[INFO] finished tweaking git repo https://github.com/archer884/value_compressor
[INFO] tweaked toml for git repo https://github.com/archer884/value_compressor written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/archer884/value_compressor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-10/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.45.2" "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] 13070706bd9344febc076ac7c850a49c000265623cea5810fad98ac63c76ffcd
[INFO] running `Command { std: "docker" "start" "-a" "13070706bd9344febc076ac7c850a49c000265623cea5810fad98ac63c76ffcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13070706bd9344febc076ac7c850a49c000265623cea5810fad98ac63c76ffcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13070706bd9344febc076ac7c850a49c000265623cea5810fad98ac63c76ffcd", kill_on_drop: false }`
[INFO] [stdout] 13070706bd9344febc076ac7c850a49c000265623cea5810fad98ac63c76ffcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 395e75fd6f0952117c6aeeb66718e8ff66c0a91c054aea1772c92837e558381a
[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" "395e75fd6f0952117c6aeeb66718e8ff66c0a91c054aea1772c92837e558381a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling bzip2 v0.4.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling value_compressor v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `bzip2::reader`
[INFO] [stdout]  --> src/main.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | use bzip2::reader::BzCompressor;
[INFO] [stdout]   |            ^^^^^^ could not find `reader` in `bzip2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `rand::distributions::IndependentSample`, `rand::distributions::Range`
[INFO] [stdout]  --> src/main.rs:8:27
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::distributions::{IndependentSample, Range};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^  ^^^^^ no `Range` in `distributions`
[INFO] [stdout]   |                           |
[INFO] [stdout]   |                           no `IndependentSample` in `distributions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `value_compressor`.
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stdout]   --> src/main.rs:33:33
[INFO] [stdout]    |
[INFO] [stdout] 33 |             match File::create(&Path::new(if compress { "./compress.out" } else { "./uncompress.out" })) {
[INFO] [stdout]    |                                 ^^^^ use of undeclared type or module `Path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `range` in `distributions`
[INFO] [stdout]   --> src/main.rs:70:48
[INFO] [stdout]    |
[INFO] [stdout] 70 |     where T: PartialOrd + rand::distributions::range::SampleRange
[INFO] [stdout]    |                                                ^^^^^ could not find `range` in `distributions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Slice` in module `std::raw`
[INFO] [stdout]   --> src/main.rs:76:35
[INFO] [stdout]    |
[INFO] [stdout] 76 |     std::mem::transmute(std::raw::Slice {
[INFO] [stdout]    |                                   ^^^^^ not found in `std::raw`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufWriter`
[INFO] [stdout]   --> src/main.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{BufWriter, Cursor, Write};
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0422, E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0422`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "395e75fd6f0952117c6aeeb66718e8ff66c0a91c054aea1772c92837e558381a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "395e75fd6f0952117c6aeeb66718e8ff66c0a91c054aea1772c92837e558381a", kill_on_drop: false }`
[INFO] [stdout] 395e75fd6f0952117c6aeeb66718e8ff66c0a91c054aea1772c92837e558381a