[INFO] fetching crate rustrict 0.4.13...
[INFO] testing rustrict-0.4.13 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rustrict 0.4.13 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate rustrict 0.4.13 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustrict 0.4.13
[INFO] finished tweaking crates.io crate rustrict 0.4.13
[INFO] tweaked toml for crates.io crate rustrict 0.4.13 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate crates.io crate rustrict 0.4.13 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rulinalg v0.4.2
[INFO] [stderr]   Downloaded censor v0.2.0
[INFO] [stderr]   Downloaded indicatif v0.17.0-beta.1
[INFO] [stderr]   Downloaded imageproc v0.22.0
[INFO] [stderr]   Downloaded rustrict v0.4.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ddbe45bbb865ff2ca8e159ba37dc313aefb6745869109f2241dc41d7beb65a2
[INFO] running `Command { std: "docker" "start" "-a" "1ddbe45bbb865ff2ca8e159ba37dc313aefb6745869109f2241dc41d7beb65a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ddbe45bbb865ff2ca8e159ba37dc313aefb6745869109f2241dc41d7beb65a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ddbe45bbb865ff2ca8e159ba37dc313aefb6745869109f2241dc41d7beb65a2", kill_on_drop: false }`
[INFO] [stdout] 1ddbe45bbb865ff2ca8e159ba37dc313aefb6745869109f2241dc41d7beb65a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1724961eb42276b122eb315843530dce7ea4c4bf34ccc3e29b2b1c9790d66c27
[INFO] running `Command { std: "docker" "start" "-a" "1724961eb42276b122eb315843530dce7ea4c4bf34ccc3e29b2b1c9790d66c27", kill_on_drop: false }`
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling rustrict v0.4.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.50s
[INFO] running `Command { std: "docker" "inspect" "1724961eb42276b122eb315843530dce7ea4c4bf34ccc3e29b2b1c9790d66c27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1724961eb42276b122eb315843530dce7ea4c4bf34ccc3e29b2b1c9790d66c27", kill_on_drop: false }`
[INFO] [stdout] 1724961eb42276b122eb315843530dce7ea4c4bf34ccc3e29b2b1c9790d66c27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57904a77ca453c14e9e3404749464877c74870a57a404c02b4981b9232792173
[INFO] running `Command { std: "docker" "start" "-a" "57904a77ca453c14e9e3404749464877c74870a57a404c02b4981b9232792173", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling proc-macro2 v1.0.33
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling censor v0.2.0
[INFO] [stderr]    Compiling rustrict v0.4.9
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]    Compiling serial_test v0.5.1
[INFO] [stderr]    Compiling rustrict v0.4.13 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(test, feature(test))]
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustrict` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "57904a77ca453c14e9e3404749464877c74870a57a404c02b4981b9232792173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57904a77ca453c14e9e3404749464877c74870a57a404c02b4981b9232792173", kill_on_drop: false }`
[INFO] [stdout] 57904a77ca453c14e9e3404749464877c74870a57a404c02b4981b9232792173