[INFO] fetching crate gctx 0.6.0...
[INFO] checking gctx-0.6.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate gctx 0.6.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate gctx 0.6.0 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 gctx 0.6.0
[INFO] finished tweaking crates.io crate gctx 0.6.0
[INFO] tweaked toml for crates.io crate gctx 0.6.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate gctx 0.6.0 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 result v1.0.0
[INFO] [stderr]   Downloaded serde_ini v0.2.0
[INFO] [stderr]   Downloaded gcloud-ctx v0.4.0
[INFO] [stderr]   Downloaded clap_derive v3.1.0
[INFO] [stderr]   Downloaded which v4.2.4
[INFO] [stderr]   Downloaded anyhow v1.0.54
[INFO] [stderr]   Downloaded zeroize v1.5.2
[INFO] [stderr]   Downloaded clap v3.1.0
[INFO] [stderr]   Downloaded dialoguer v0.10.0
[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] aace61b99a0ec874aef1ee65349bab1ecf49be0a05ced894e3fb6fd6ee3f44ed
[INFO] running `Command { std: "docker" "start" "-a" "aace61b99a0ec874aef1ee65349bab1ecf49be0a05ced894e3fb6fd6ee3f44ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aace61b99a0ec874aef1ee65349bab1ecf49be0a05ced894e3fb6fd6ee3f44ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aace61b99a0ec874aef1ee65349bab1ecf49be0a05ced894e3fb6fd6ee3f44ed", kill_on_drop: false }`
[INFO] [stdout] aace61b99a0ec874aef1ee65349bab1ecf49be0a05ced894e3fb6fd6ee3f44ed
[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] 99adb8d5df406b589903dfaef25bde86718803182aed0aad14934836e9863264
[INFO] running `Command { std: "docker" "start" "-a" "99adb8d5df406b589903dfaef25bde86718803182aed0aad14934836e9863264", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.54
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking result v1.0.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking zeroize v1.5.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking which v4.2.4
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking dialoguer v0.10.0
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking assert_fs v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling clap_derive v3.1.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking clap v3.1.0
[INFO] [stderr]     Checking serde_ini v0.2.0
[INFO] [stderr]     Checking gcloud-ctx v0.4.0
[INFO] [stderr]     Checking gctx v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.55s
[INFO] running `Command { std: "docker" "inspect" "99adb8d5df406b589903dfaef25bde86718803182aed0aad14934836e9863264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99adb8d5df406b589903dfaef25bde86718803182aed0aad14934836e9863264", kill_on_drop: false }`
[INFO] [stdout] 99adb8d5df406b589903dfaef25bde86718803182aed0aad14934836e9863264
[INFO] checking gctx-0.6.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate gctx 0.6.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate gctx 0.6.0 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 gctx 0.6.0
[INFO] finished tweaking crates.io crate gctx 0.6.0
[INFO] tweaked toml for crates.io crate gctx 0.6.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate gctx 0.6.0 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-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] 650e16764c0eb00d8ed1d3448b788d10b8364a381965cb692bdd207a60bd52b3
[INFO] running `Command { std: "docker" "start" "-a" "650e16764c0eb00d8ed1d3448b788d10b8364a381965cb692bdd207a60bd52b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "650e16764c0eb00d8ed1d3448b788d10b8364a381965cb692bdd207a60bd52b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "650e16764c0eb00d8ed1d3448b788d10b8364a381965cb692bdd207a60bd52b3", kill_on_drop: false }`
[INFO] [stdout] 650e16764c0eb00d8ed1d3448b788d10b8364a381965cb692bdd207a60bd52b3
[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] 91a91c8ea75f188603e7f4b8d4503a2b3a075058e58a43db55405d680cfbd554
[INFO] running `Command { std: "docker" "start" "-a" "91a91c8ea75f188603e7f4b8d4503a2b3a075058e58a43db55405d680cfbd554", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking result v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.54
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking zeroize v1.5.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking which v4.2.4
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking dialoguer v0.10.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]     Checking assert_fs v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling clap_derive v3.1.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking clap v3.1.0
[INFO] [stderr]     Checking serde_ini v0.2.0
[INFO] [stderr]     Checking gcloud-ctx v0.4.0
[INFO] [stderr]     Checking gctx v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.53s
[INFO] running `Command { std: "docker" "inspect" "91a91c8ea75f188603e7f4b8d4503a2b3a075058e58a43db55405d680cfbd554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91a91c8ea75f188603e7f4b8d4503a2b3a075058e58a43db55405d680cfbd554", kill_on_drop: false }`
[INFO] [stdout] 91a91c8ea75f188603e7f4b8d4503a2b3a075058e58a43db55405d680cfbd554