[INFO] fetching crate piqel 0.202107.4...
[INFO] checking piqel-0.202107.4 against 1.55.0 for beta-1.56-3
[INFO] extracting crate piqel 0.202107.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate piqel 0.202107.4 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-8/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate piqel 0.202107.4
[INFO] finished tweaking crates.io crate piqel 0.202107.4
[INFO] tweaked toml for crates.io crate piqel 0.202107.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate piqel 0.202107.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded term_size v0.3.2
[INFO] [stderr]   Downloaded ansi_term v0.12.1
[INFO] [stderr]   Downloaded unsafe_unwrap v0.1.0
[INFO] [stderr]   Downloaded ahash v0.7.4
[INFO] [stderr]   Downloaded structopt-derive v0.4.15
[INFO] [stderr]   Downloaded num-complex v0.4.0
[INFO] [stderr]   Downloaded radium v0.5.3
[INFO] [stderr]   Downloaded bincode v1.3.3
[INFO] [stderr]   Downloaded dirs-sys-next v0.1.2
[INFO] [stderr]   Downloaded bitvec v0.19.5
[INFO] [stderr]   Downloaded line-wrap v0.1.1
[INFO] [stderr]   Downloaded shell-words v1.0.0
[INFO] [stderr]   Downloaded arrow v4.4.0
[INFO] [stderr]   Downloaded encoding v0.2.33
[INFO] [stderr]   Downloaded prettytable-rs v0.8.0
[INFO] [stderr]   Downloaded encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]   Downloaded sys-info v0.9.0
[INFO] [stderr]   Downloaded clircle v0.3.0
[INFO] [stderr]   Downloaded ansi_colours v1.0.4
[INFO] [stderr]   Downloaded content_inspector v0.2.4
[INFO] [stderr]   Downloaded multiversion-macros v0.6.1
[INFO] [stderr]   Downloaded git-version-macro v0.3.4
[INFO] [stderr]   Downloaded shell-escape v0.1.5
[INFO] [stderr]   Downloaded encoding-index-japanese v1.20141219.5
[INFO] [stderr]   Downloaded bugreport v0.4.0
[INFO] [stderr]   Downloaded encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]   Downloaded polars-io v0.14.5
[INFO] [stderr]   Downloaded polars v0.14.5
[INFO] [stderr]   Downloaded error-chain v0.12.4
[INFO] [stderr]   Downloaded git-version v0.3.4
[INFO] [stderr]   Downloaded jobserver v0.1.22
[INFO] [stderr]   Downloaded collect-mac v0.1.0
[INFO] [stderr]   Downloaded ordered-float v2.6.0
[INFO] [stderr] warning: spurious network error (2 tries remaining): [55] Failed sending data to the peer (Connection died, tried 5 times before giving up)
[INFO] [stderr]   Downloaded multiversion v0.6.1
[INFO] [stderr]   Downloaded encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]   Downloaded polars-arrow v0.14.5
[INFO] [stderr]   Downloaded structopt v0.3.22
[INFO] [stderr]   Downloaded polars-lazy v0.14.5
[INFO] [stderr]   Downloaded lexical-core v0.7.6
[INFO] [stderr]   Downloaded std_prelude v0.2.12
[INFO] [stderr]   Downloaded onig v6.2.0
[INFO] [stderr]   Downloaded git2 v0.13.20
[INFO] [stderr]   Downloaded wild v2.0.4
[INFO] [stderr]   Downloaded lexical v5.2.2
[INFO] [stderr]   Downloaded syntect v4.5.0
[INFO] [stderr]   Downloaded wyz v0.2.0
[INFO] [stderr]   Downloaded parse-display v0.5.0
[INFO] [stderr]   Downloaded structmeta v0.1.3
[INFO] [stderr]   Downloaded plist v1.1.0
[INFO] [stderr]   Downloaded memmap2 v0.2.3
[INFO] [stderr]   Downloaded libgit2-sys v0.12.21+1.1.0
[INFO] [stderr]   Downloaded parse-display-derive v0.5.0
[INFO] [stderr]   Downloaded bat v0.18.1
[INFO] [stderr]   Downloaded onig_sys v69.7.0
[INFO] [stderr]   Downloaded fast-float v0.2.0
[INFO] [stderr]   Downloaded num-bigint v0.4.0
[INFO] [stderr]   Downloaded polars-core v0.14.5
[INFO] [stderr]   Downloaded flatbuffers v0.8.4
[INFO] [stderr]   Downloaded serde_partiql v1.1.64
[INFO] [stderr]   Downloaded structmeta-derive v0.1.3
[INFO] [stderr]   Downloaded anyhow v1.0.41
[INFO] [stderr]   Downloaded safemem v0.3.3
[INFO] [stderr]   Downloaded thiserror-impl v1.0.26
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded thiserror v1.0.26
[INFO] [stderr]   Downloaded quick-xml v0.22.0
[INFO] [stderr]   Downloaded encoding-index-korean v1.20141219.5
[INFO] [stderr]   Downloaded path_abs v0.5.1
[INFO] [stderr]   Downloaded term v0.5.2
[INFO] [stderr]   Downloaded encoding_index_tests v0.1.4
[INFO] [stderr]   Downloaded syn v1.0.73
[INFO] [stderr]   Downloaded funty v1.1.0
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded globset v0.4.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca9cee054b36ac301778d15d29abf29453cc647840ba6ab2e8a8a9b4501f38d2
[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" "ca9cee054b36ac301778d15d29abf29453cc647840ba6ab2e8a8a9b4501f38d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca9cee054b36ac301778d15d29abf29453cc647840ba6ab2e8a8a9b4501f38d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca9cee054b36ac301778d15d29abf29453cc647840ba6ab2e8a8a9b4501f38d2", kill_on_drop: false }`
[INFO] [stdout] ca9cee054b36ac301778d15d29abf29453cc647840ba6ab2e8a8a9b4501f38d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e0c045728f84860146a5418808bc0eaba5ac29520e8df5515633424477b5d22
[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" "1e0c045728f84860146a5418808bc0eaba5ac29520e8df5515633424477b5d22", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_partiql v1.1.64
[INFO] [stderr]     Checking collect-mac v0.1.0
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking indexmap v1.7.0
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking quick-xml v0.22.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking ordered-float v2.6.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling structmeta-derive v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling structmeta v0.1.3
[INFO] [stderr]    Compiling parse-display-derive v0.5.0
[INFO] [stderr]     Checking parse-display v0.5.0
[INFO] [stderr]     Checking piqel v0.202107.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Parser`
[INFO] [stdout]   --> src/lib/pqlir_parser.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |     IResult, Parser,
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]   --> src/lib/value/pql_value.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rayon::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/lib/value/pql_vector.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `piqel` due to 2 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Parser`
[INFO] [stdout]   --> src/lib/pqlir_parser.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |     IResult, Parser,
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]   --> src/lib/value/pql_value.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rayon::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/lib/value/pql_vector.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1e0c045728f84860146a5418808bc0eaba5ac29520e8df5515633424477b5d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e0c045728f84860146a5418808bc0eaba5ac29520e8df5515633424477b5d22", kill_on_drop: false }`
[INFO] [stdout] 1e0c045728f84860146a5418808bc0eaba5ac29520e8df5515633424477b5d22
