[INFO] cloning repository https://github.com/LoganWalls/picoref
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LoganWalls/picoref" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLoganWalls%2Fpicoref", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLoganWalls%2Fpicoref'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f98a0f0b68293dbcb59b7f2ff5caca252231275
[INFO] checking LoganWalls/picoref against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLoganWalls%2Fpicoref" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LoganWalls/picoref 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] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/LoganWalls/picoref
[INFO] finished tweaking git repo https://github.com/LoganWalls/picoref
[INFO] tweaked toml for git repo https://github.com/LoganWalls/picoref written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LoganWalls/picoref 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 deunicode v1.3.3
[INFO] [stderr]   Downloaded rustls v0.21.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 227819cbc122aa6b00a88f392b4772a35f5cc2ec9cfafb67436b438cafbb7e0d
[INFO] running `Command { std: "docker" "start" "-a" "227819cbc122aa6b00a88f392b4772a35f5cc2ec9cfafb67436b438cafbb7e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "227819cbc122aa6b00a88f392b4772a35f5cc2ec9cfafb67436b438cafbb7e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "227819cbc122aa6b00a88f392b4772a35f5cc2ec9cfafb67436b438cafbb7e0d", kill_on_drop: false }`
[INFO] [stdout] 227819cbc122aa6b00a88f392b4772a35f5cc2ec9cfafb67436b438cafbb7e0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f4133328d1c529272d0213a6de6e55106d2f2c0bef25887f254c9b0bc321c127
[INFO] running `Command { std: "docker" "start" "-a" "f4133328d1c529272d0213a6de6e55106d2f2c0bef25887f254c9b0bc321c127", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.178
[INFO] [stderr]    Compiling serde_derive v1.0.178
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling portable-atomic v1.5.1
[INFO] [stderr]    Compiling rustls v0.21.5
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking winnow v0.5.2
[INFO] [stderr]     Checking unsafe-libyaml v0.2.9
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking deunicode v1.3.3
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking indicatif v0.17.7
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls-webpki v0.101.2
[INFO] [stderr]     Checking rustls-webpki v0.100.1
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking serde_yaml v0.9.25
[INFO] [stderr]     Checking webpki-roots v0.23.1
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking ureq v2.7.1
[INFO] [stderr]     Checking picoref v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.43s
[INFO] running `Command { std: "docker" "inspect" "f4133328d1c529272d0213a6de6e55106d2f2c0bef25887f254c9b0bc321c127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4133328d1c529272d0213a6de6e55106d2f2c0bef25887f254c9b0bc321c127", kill_on_drop: false }`
[INFO] [stdout] f4133328d1c529272d0213a6de6e55106d2f2c0bef25887f254c9b0bc321c127