[INFO] cloning repository https://github.com/NickCao/Bellovin-Merritt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NickCao/Bellovin-Merritt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickCao%2FBellovin-Merritt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickCao%2FBellovin-Merritt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1b902065c489ad51bf0b0183f1dac77274744ee
[INFO] checking NickCao/Bellovin-Merritt against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickCao%2FBellovin-Merritt" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NickCao/Bellovin-Merritt 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/NickCao/Bellovin-Merritt
[INFO] finished tweaking git repo https://github.com/NickCao/Bellovin-Merritt
[INFO] tweaked toml for git repo https://github.com/NickCao/Bellovin-Merritt written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/NickCao/Bellovin-Merritt 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 base64ct v1.5.0
[INFO] [stderr]   Downloaded simple_logger v2.1.0
[INFO] [stderr]   Downloaded chacha20 v0.9.0
[INFO] [stderr]   Downloaded num-bigint-dig v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0d565133467afa7d7f880a67cf6416b45cc0b16516b23f492ea0c3ccffe3403b
[INFO] running `Command { std: "docker" "start" "-a" "0d565133467afa7d7f880a67cf6416b45cc0b16516b23f492ea0c3ccffe3403b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d565133467afa7d7f880a67cf6416b45cc0b16516b23f492ea0c3ccffe3403b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d565133467afa7d7f880a67cf6416b45cc0b16516b23f492ea0c3ccffe3403b", kill_on_drop: false }`
[INFO] [stdout] 0d565133467afa7d7f880a67cf6416b45cc0b16516b23f492ea0c3ccffe3403b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 952b98b5f407777eaa0c2ad856ce7ef2dc19e05dd608ad0ad5d1655a58d1be5c
[INFO] running `Command { std: "docker" "start" "-a" "952b98b5f407777eaa0c2ad856ce7ef2dc19e05dd608ad0ad5d1655a58d1be5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]     Checking base64ct v1.5.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking const-oid v0.7.1
[INFO] [stderr]     Checking zeroize v1.5.5
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num-bigint-dig v0.8.1
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking pem-rfc7468 v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking simple_logger v2.1.0
[INFO] [stderr]     Checking crypto-bigint v0.3.2
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking cipher v0.4.3
[INFO] [stderr]     Checking chacha20 v0.9.0
[INFO] [stderr]     Checking der v0.5.1
[INFO] [stderr]     Checking spki v0.5.4
[INFO] [stderr]     Checking pkcs8 v0.8.0
[INFO] [stderr]     Checking pkcs1 v0.3.3
[INFO] [stderr]     Checking rsa v0.6.1
[INFO] [stderr]     Checking bm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.69s
[INFO] running `Command { std: "docker" "inspect" "952b98b5f407777eaa0c2ad856ce7ef2dc19e05dd608ad0ad5d1655a58d1be5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "952b98b5f407777eaa0c2ad856ce7ef2dc19e05dd608ad0ad5d1655a58d1be5c", kill_on_drop: false }`
[INFO] [stdout] 952b98b5f407777eaa0c2ad856ce7ef2dc19e05dd608ad0ad5d1655a58d1be5c
[INFO] checking NickCao/Bellovin-Merritt against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickCao%2FBellovin-Merritt" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NickCao/Bellovin-Merritt on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NickCao/Bellovin-Merritt
[INFO] finished tweaking git repo https://github.com/NickCao/Bellovin-Merritt
[INFO] tweaked toml for git repo https://github.com/NickCao/Bellovin-Merritt written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/NickCao/Bellovin-Merritt 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ec2c248a05a64316be49e4582e8ca706e65522f6a59550ada822c98e870b64b
[INFO] running `Command { std: "docker" "start" "-a" "0ec2c248a05a64316be49e4582e8ca706e65522f6a59550ada822c98e870b64b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ec2c248a05a64316be49e4582e8ca706e65522f6a59550ada822c98e870b64b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec2c248a05a64316be49e4582e8ca706e65522f6a59550ada822c98e870b64b", kill_on_drop: false }`
[INFO] [stdout] 0ec2c248a05a64316be49e4582e8ca706e65522f6a59550ada822c98e870b64b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00ad80bea810f05346c8f065614f37f7db744011c21ade4995134e7f9b1dabe3
[INFO] running `Command { std: "docker" "start" "-a" "00ad80bea810f05346c8f065614f37f7db744011c21ade4995134e7f9b1dabe3", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking base64ct v1.5.0
[INFO] [stderr]     Checking const-oid v0.7.1
[INFO] [stderr]     Checking zeroize v1.5.5
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num-bigint-dig v0.8.1
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking pem-rfc7468 v0.3.1
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking time v0.3.9
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking crypto-bigint v0.3.2
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking cipher v0.4.3
[INFO] [stderr]     Checking simple_logger v2.1.0
[INFO] [stderr]     Checking chacha20 v0.9.0
[INFO] [stderr]     Checking der v0.5.1
[INFO] [stderr]     Checking spki v0.5.4
[INFO] [stderr]     Checking pkcs8 v0.8.0
[INFO] [stderr]     Checking pkcs1 v0.3.3
[INFO] [stderr]     Checking rsa v0.6.1
[INFO] [stderr]     Checking bm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.52s
[INFO] running `Command { std: "docker" "inspect" "00ad80bea810f05346c8f065614f37f7db744011c21ade4995134e7f9b1dabe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00ad80bea810f05346c8f065614f37f7db744011c21ade4995134e7f9b1dabe3", kill_on_drop: false }`
[INFO] [stdout] 00ad80bea810f05346c8f065614f37f7db744011c21ade4995134e7f9b1dabe3