[INFO] cloning repository https://github.com/standage/umngqusho
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/standage/umngqusho" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstandage%2Fumngqusho", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstandage%2Fumngqusho'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92cc026ce99629bd2c948547d982700258ebd1a4
[INFO] checking standage/umngqusho against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstandage%2Fumngqusho" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/standage/umngqusho on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/standage/umngqusho
[INFO] finished tweaking git repo https://github.com/standage/umngqusho
[INFO] tweaked toml for git repo https://github.com/standage/umngqusho written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/standage/umngqusho already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu-derive v0.6.9
[INFO] [stderr]   Downloaded bytecount v0.6.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.23
[INFO] [stderr]   Downloaded snafu v0.6.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87a3bfaa656c325cee311b27b80d32629549d4af5b8c20312372f719f1d3f2c1
[INFO] running `Command { std: "docker" "start" "-a" "87a3bfaa656c325cee311b27b80d32629549d4af5b8c20312372f719f1d3f2c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87a3bfaa656c325cee311b27b80d32629549d4af5b8c20312372f719f1d3f2c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87a3bfaa656c325cee311b27b80d32629549d4af5b8c20312372f719f1d3f2c1", kill_on_drop: false }`
[INFO] [stdout] 87a3bfaa656c325cee311b27b80d32629549d4af5b8c20312372f719f1d3f2c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a91eb412a52f32e34ddfbb7a03b83c6a010378ad34796836a5dd0e313dd4876
[INFO] running `Command { std: "docker" "start" "-a" "6a91eb412a52f32e34ddfbb7a03b83c6a010378ad34796836a5dd0e313dd4876", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling feature-probe v0.1.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling bv v0.11.1
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling bio v0.32.0
[INFO] [stderr]     Checking array-macro v1.0.5
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking triple_accel v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking statrs v0.12.0
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling snafu-derive v0.6.9
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]     Checking enum-map v0.6.3
[INFO] [stderr]     Checking snafu v0.6.9
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking multimap v0.8.2
[INFO] [stderr]     Checking bio-types v0.7.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking umngqusho v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.78s
[INFO] running `Command { std: "docker" "inspect" "6a91eb412a52f32e34ddfbb7a03b83c6a010378ad34796836a5dd0e313dd4876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a91eb412a52f32e34ddfbb7a03b83c6a010378ad34796836a5dd0e313dd4876", kill_on_drop: false }`
[INFO] [stdout] 6a91eb412a52f32e34ddfbb7a03b83c6a010378ad34796836a5dd0e313dd4876