[INFO] fetching crate sampi 0.2.8...
[INFO] testing sampi-0.2.8 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate sampi 0.2.8 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate sampi 0.2.8 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sampi 0.2.8
[INFO] finished tweaking crates.io crate sampi 0.2.8
[INFO] tweaked toml for crates.io crate sampi 0.2.8 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate sampi 0.2.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0ab2a1fcbe6532ac8b5d321297ba54c2512b153f5cf4db7e42e79233a0a538e
[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" "f0ab2a1fcbe6532ac8b5d321297ba54c2512b153f5cf4db7e42e79233a0a538e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0ab2a1fcbe6532ac8b5d321297ba54c2512b153f5cf4db7e42e79233a0a538e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0ab2a1fcbe6532ac8b5d321297ba54c2512b153f5cf4db7e42e79233a0a538e", kill_on_drop: false }`
[INFO] [stdout] f0ab2a1fcbe6532ac8b5d321297ba54c2512b153f5cf4db7e42e79233a0a538e
[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=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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a281668ba49f6614152607dec668489a6f5340dfbca56dc352442b6d055c35d6
[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" "a281668ba49f6614152607dec668489a6f5340dfbca56dc352442b6d055c35d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.43
[INFO] [stderr]    Compiling serde-big-array v0.1.5
[INFO] [stderr]    Compiling qrcodegen v1.6.0
[INFO] [stderr]    Compiling strum v0.17.1
[INFO] [stderr]    Compiling base32 v0.4.0
[INFO] [stderr]    Compiling ed25519 v1.0.2
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling rust-base58 v0.0.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling structopt-derive v0.4.12
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling strum_macros v0.17.1
[INFO] [stderr]    Compiling zeroize v1.1.1
[INFO] [stderr]    Compiling curve25519-dalek v3.0.0
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling structopt v0.3.19
[INFO] [stderr]    Compiling sampi v0.2.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.76s
[INFO] running `Command { std: "docker" "inspect" "a281668ba49f6614152607dec668489a6f5340dfbca56dc352442b6d055c35d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a281668ba49f6614152607dec668489a6f5340dfbca56dc352442b6d055c35d6", kill_on_drop: false }`
[INFO] [stdout] a281668ba49f6614152607dec668489a6f5340dfbca56dc352442b6d055c35d6
[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=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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4276575d74842bbe5c649888828d07864ca60a0d7aa276c147e14f0ed4891d07
[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" "4276575d74842bbe5c649888828d07864ca60a0d7aa276c147e14f0ed4891d07", kill_on_drop: false }`
[INFO] [stderr]    Compiling sampi v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `flate2`
[INFO] [stdout]  --> examples/gzip.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use flate2::write::ZlibEncoder;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `flate2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `flate2`
[INFO] [stdout]  --> examples/gzip.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use flate2::Compression;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `flate2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ZlibEncoder`
[INFO] [stdout]   --> examples/gzip.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut e = ZlibEncoder::new(Vec::new(), Compression::default());
[INFO] [stdout]    |                 ^^^^^^^^^^^ use of undeclared type `ZlibEncoder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sampi`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> examples/kv_original.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `has_capacity`
[INFO] [stdout]   --> examples/kv_original.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn has_capacity(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> examples/kv.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `has_capacity`
[INFO] [stdout]   --> examples/kv.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn has_capacity(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4276575d74842bbe5c649888828d07864ca60a0d7aa276c147e14f0ed4891d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4276575d74842bbe5c649888828d07864ca60a0d7aa276c147e14f0ed4891d07", kill_on_drop: false }`
[INFO] [stdout] 4276575d74842bbe5c649888828d07864ca60a0d7aa276c147e14f0ed4891d07
