[INFO] fetching crate avamain 0.1.0...
[INFO] checking avamain-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate avamain 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate avamain 0.1.0 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 crates.io crate avamain 0.1.0
[INFO] finished tweaking crates.io crate avamain 0.1.0
[INFO] tweaked toml for crates.io crate avamain 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate avamain 0.1.0 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded validators-options v0.24.0
[INFO] [stderr]   Downloaded whois-rust v1.5.0
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.11
[INFO] [stderr]   Downloaded indenter v0.3.3
[INFO] [stderr]   Downloaded educe v0.4.19
[INFO] [stderr]   Downloaded trust-dns-client v0.21.2
[INFO] [stderr]   Downloaded seqset v0.1.1
[INFO] [stderr]   Downloaded eyre v0.6.8
[INFO] [stderr]   Downloaded nibble_vec v0.1.0
[INFO] [stderr]   Downloaded num-bigint v0.4.3
[INFO] [stderr]   Downloaded once_cell v1.12.0
[INFO] [stderr]   Downloaded radix_trie v0.2.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.26
[INFO] [stderr]   Downloaded regex v1.5.6
[INFO] [stderr]   Downloaded trust-dns-proto v0.21.2
[INFO] [stderr]   Downloaded validators-derive v0.24.0
[INFO] [stderr]   Downloaded endian-type v0.1.2
[INFO] [stderr]   Downloaded num_threads v0.1.6
[INFO] [stderr]   Downloaded data-encoding v2.3.2
[INFO] [stderr]   Downloaded heck v0.4.0
[INFO] [stderr]   Downloaded enum-as-inner v0.4.0
[INFO] [stderr]   Downloaded validators v0.24.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] bb9dfa41f9d91de7db3b629f922a6f7c8ad9a9a0804eeab66e1c87f240e82c4d
[INFO] running `Command { std: "docker" "start" "-a" "bb9dfa41f9d91de7db3b629f922a6f7c8ad9a9a0804eeab66e1c87f240e82c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb9dfa41f9d91de7db3b629f922a6f7c8ad9a9a0804eeab66e1c87f240e82c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb9dfa41f9d91de7db3b629f922a6f7c8ad9a9a0804eeab66e1c87f240e82c4d", kill_on_drop: false }`
[INFO] [stdout] bb9dfa41f9d91de7db3b629f922a6f7c8ad9a9a0804eeab66e1c87f240e82c4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e26fd2758cbf2f4d29aa1381f9617228a86563ac6af6115950b924e40e25b3c6
[INFO] running `Command { std: "docker" "start" "-a" "e26fd2758cbf2f4d29aa1381f9617228a86563ac6af6115950b924e40e25b3c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking seqset v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking time v0.3.9
[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 idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]    Compiling enum-ordinalize v3.1.11
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling enum-as-inner v0.4.0
[INFO] [stderr]     Checking tokio v1.18.2
[INFO] [stderr]    Compiling educe v0.4.19
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]    Compiling validators-options v0.24.0
[INFO] [stderr]    Compiling validators-derive v0.24.0
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking trust-dns-proto v0.21.2
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking validators v0.24.2
[INFO] [stderr]     Checking trust-dns-client v0.21.2
[INFO] [stderr]     Checking whois-rust v1.5.0
[INFO] [stderr]     Checking avamain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.95s
[INFO] running `Command { std: "docker" "inspect" "e26fd2758cbf2f4d29aa1381f9617228a86563ac6af6115950b924e40e25b3c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e26fd2758cbf2f4d29aa1381f9617228a86563ac6af6115950b924e40e25b3c6", kill_on_drop: false }`
[INFO] [stdout] e26fd2758cbf2f4d29aa1381f9617228a86563ac6af6115950b924e40e25b3c6
[INFO] checking avamain-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate avamain 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate avamain 0.1.0 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 crates.io crate avamain 0.1.0
[INFO] finished tweaking crates.io crate avamain 0.1.0
[INFO] tweaked toml for crates.io crate avamain 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate avamain 0.1.0 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 06d5263812b6539cde5233dfe5db7f6b20860b56ec744e4c5d87b11a0409d3dd
[INFO] running `Command { std: "docker" "start" "-a" "06d5263812b6539cde5233dfe5db7f6b20860b56ec744e4c5d87b11a0409d3dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06d5263812b6539cde5233dfe5db7f6b20860b56ec744e4c5d87b11a0409d3dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06d5263812b6539cde5233dfe5db7f6b20860b56ec744e4c5d87b11a0409d3dd", kill_on_drop: false }`
[INFO] [stdout] 06d5263812b6539cde5233dfe5db7f6b20860b56ec744e4c5d87b11a0409d3dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 374a33e22e8e6d645af23a0ad556e457858c3684fc458c360471516aa0669988
[INFO] running `Command { std: "docker" "start" "-a" "374a33e22e8e6d645af23a0ad556e457858c3684fc458c360471516aa0669988", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking seqset v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking time v0.3.9
[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 idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]    Compiling enum-ordinalize v3.1.11
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling enum-as-inner v0.4.0
[INFO] [stderr]     Checking tokio v1.18.2
[INFO] [stderr]    Compiling educe v0.4.19
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]    Compiling validators-options v0.24.0
[INFO] [stderr]    Compiling validators-derive v0.24.0
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking trust-dns-proto v0.21.2
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking validators v0.24.2
[INFO] [stderr]     Checking trust-dns-client v0.21.2
[INFO] [stderr]     Checking whois-rust v1.5.0
[INFO] [stderr]     Checking avamain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.74s
[INFO] running `Command { std: "docker" "inspect" "374a33e22e8e6d645af23a0ad556e457858c3684fc458c360471516aa0669988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "374a33e22e8e6d645af23a0ad556e457858c3684fc458c360471516aa0669988", kill_on_drop: false }`
[INFO] [stdout] 374a33e22e8e6d645af23a0ad556e457858c3684fc458c360471516aa0669988