[INFO] fetching crate camer 1.0.8...
[INFO] checking camer-1.0.8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate camer 1.0.8 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate camer 1.0.8 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-5-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate camer 1.0.8
[INFO] finished tweaking crates.io crate camer 1.0.8
[INFO] tweaked toml for crates.io crate camer 1.0.8 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate camer 1.0.8 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 dirs v4.0.0
[INFO] [stderr]   Downloaded prettytable-rs v0.8.0
[INFO] [stderr]   Downloaded arrayref v0.3.6
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.8
[INFO] [stderr]   Downloaded clap_derive v3.1.7
[INFO] [stderr]   Downloaded indexmap v1.8.1
[INFO] [stderr]   Downloaded getrandom v0.2.6
[INFO] [stderr]   Downloaded regex v1.5.5
[INFO] [stderr]   Downloaded clap v3.1.8
[INFO] [stderr]   Downloaded bstr v0.2.17
[INFO] [stderr]   Downloaded libc v0.2.123
[INFO] [stderr]   Downloaded syn v1.0.91
[INFO] [stderr]   Downloaded proc-macro2 v1.0.37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c7e751fccfbd92b72f6f3a0542dc815f6a0468961098bcb728a8ba05c66f6de2
[INFO] running `Command { std: "docker" "start" "-a" "c7e751fccfbd92b72f6f3a0542dc815f6a0468961098bcb728a8ba05c66f6de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7e751fccfbd92b72f6f3a0542dc815f6a0468961098bcb728a8ba05c66f6de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7e751fccfbd92b72f6f3a0542dc815f6a0468961098bcb728a8ba05c66f6de2", kill_on_drop: false }`
[INFO] [stdout] c7e751fccfbd92b72f6f3a0542dc815f6a0468961098bcb728a8ba05c66f6de2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fab5fdd2b90ab667a42956a1183a368a697d71cf1d4987f12cb1e4e303d24e84
[INFO] running `Command { std: "docker" "start" "-a" "fab5fdd2b90ab667a42956a1183a368a697d71cf1d4987f12cb1e4e303d24e84", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]     Checking clap v3.1.8
[INFO] [stderr]     Checking camer v1.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.34s
[INFO] running `Command { std: "docker" "inspect" "fab5fdd2b90ab667a42956a1183a368a697d71cf1d4987f12cb1e4e303d24e84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fab5fdd2b90ab667a42956a1183a368a697d71cf1d4987f12cb1e4e303d24e84", kill_on_drop: false }`
[INFO] [stdout] fab5fdd2b90ab667a42956a1183a368a697d71cf1d4987f12cb1e4e303d24e84
[INFO] checking camer-1.0.8 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate camer 1.0.8 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate camer 1.0.8 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] removed /workspace/builds/worker-5-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate camer 1.0.8
[INFO] finished tweaking crates.io crate camer 1.0.8
[INFO] tweaked toml for crates.io crate camer 1.0.8 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate camer 1.0.8 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4535aa50b533886f7f9b207b265027c9c802f9e8230c5811ef0a42746d6adf7c
[INFO] running `Command { std: "docker" "start" "-a" "4535aa50b533886f7f9b207b265027c9c802f9e8230c5811ef0a42746d6adf7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4535aa50b533886f7f9b207b265027c9c802f9e8230c5811ef0a42746d6adf7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4535aa50b533886f7f9b207b265027c9c802f9e8230c5811ef0a42746d6adf7c", kill_on_drop: false }`
[INFO] [stdout] 4535aa50b533886f7f9b207b265027c9c802f9e8230c5811ef0a42746d6adf7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b91c2d13d3d6d1fe1ad7befc8485a8869d7527c2a627a2b759ddbcf9cd960c32
[INFO] running `Command { std: "docker" "start" "-a" "b91c2d13d3d6d1fe1ad7befc8485a8869d7527c2a627a2b759ddbcf9cd960c32", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]     Checking clap v3.1.8
[INFO] [stderr]     Checking camer v1.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.48s
[INFO] running `Command { std: "docker" "inspect" "b91c2d13d3d6d1fe1ad7befc8485a8869d7527c2a627a2b759ddbcf9cd960c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b91c2d13d3d6d1fe1ad7befc8485a8869d7527c2a627a2b759ddbcf9cd960c32", kill_on_drop: false }`
[INFO] [stdout] b91c2d13d3d6d1fe1ad7befc8485a8869d7527c2a627a2b759ddbcf9cd960c32