[INFO] cloning repository https://github.com/hurwitzlab/kmer_frequencies
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hurwitzlab/kmer_frequencies" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhurwitzlab%2Fkmer_frequencies", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhurwitzlab%2Fkmer_frequencies'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3e829692619ac06cd67090afc64be3198e494c0
[INFO] checking hurwitzlab/kmer_frequencies against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhurwitzlab%2Fkmer_frequencies" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hurwitzlab/kmer_frequencies on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hurwitzlab/kmer_frequencies
[INFO] finished tweaking git repo https://github.com/hurwitzlab/kmer_frequencies
[INFO] tweaked toml for git repo https://github.com/hurwitzlab/kmer_frequencies written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/hurwitzlab/kmer_frequencies already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "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] 8220b71981c138cdf4ec2708cd42387142a4c038f8158f3e49f3dc152c5b95dc
[INFO] running `Command { std: "docker" "start" "-a" "8220b71981c138cdf4ec2708cd42387142a4c038f8158f3e49f3dc152c5b95dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8220b71981c138cdf4ec2708cd42387142a4c038f8158f3e49f3dc152c5b95dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8220b71981c138cdf4ec2708cd42387142a4c038f8158f3e49f3dc152c5b95dc", kill_on_drop: false }`
[INFO] [stdout] 8220b71981c138cdf4ec2708cd42387142a4c038f8158f3e49f3dc152c5b95dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] a8d4872cfbbace98dbd2a36fbd9f08209e441c30617ad9007da082e6bc73827a
[INFO] running `Command { std: "docker" "start" "-a" "a8d4872cfbbace98dbd2a36fbd9f08209e441c30617ad9007da082e6bc73827a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling serde v1.0.72
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling ndarray v0.9.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling bv v0.7.4
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking bytecount v0.3.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking matrixmultiply v0.1.14
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]     Checking statrs v0.9.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking itertools-num v0.1.1
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.72
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking bio-types v0.2.0
[INFO] [stderr]     Checking csv v1.0.0
[INFO] [stderr]     Checking multimap v0.4.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking bio v0.22.0
[INFO] [stderr]     Checking kmer_frequencies v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 | type MyResult<T> = Result<T, Box<Error>>;
[INFO] [stdout]    |                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:15:34
[INFO] [stdout]    |
[INFO] [stdout] 15 | type MyResult<T> = Result<T, Box<Error>>;
[INFO] [stdout]    |                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.01s
[INFO] running `Command { std: "docker" "inspect" "a8d4872cfbbace98dbd2a36fbd9f08209e441c30617ad9007da082e6bc73827a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8d4872cfbbace98dbd2a36fbd9f08209e441c30617ad9007da082e6bc73827a", kill_on_drop: false }`
[INFO] [stdout] a8d4872cfbbace98dbd2a36fbd9f08209e441c30617ad9007da082e6bc73827a