[INFO] cloning repository https://github.com/redwarp/lzw
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/redwarp/lzw" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredwarp%2Flzw", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredwarp%2Flzw'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8aee2d3e3998f47a727f5215a1e4ffc44822686d
[INFO] checking redwarp/lzw against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredwarp%2Flzw" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/redwarp/lzw 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/redwarp/lzw
[INFO] finished tweaking git repo https://github.com/redwarp/lzw
[INFO] tweaked toml for git repo https://github.com/redwarp/lzw written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/redwarp/lzw 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]     Blocking waiting for file lock on package cache
[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] a5dff55cc1bc872afa0e073e873d98fb248245f955f0d7681ea8f729b3b17ac8
[INFO] running `Command { std: "docker" "start" "-a" "a5dff55cc1bc872afa0e073e873d98fb248245f955f0d7681ea8f729b3b17ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5dff55cc1bc872afa0e073e873d98fb248245f955f0d7681ea8f729b3b17ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5dff55cc1bc872afa0e073e873d98fb248245f955f0d7681ea8f729b3b17ac8", kill_on_drop: false }`
[INFO] [stdout] a5dff55cc1bc872afa0e073e873d98fb248245f955f0d7681ea8f729b3b17ac8
[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] 856b09a48d21b8b1c70006f4d9f3e2a26acfae3462d83299a2bf9c0f021713ad
[INFO] running `Command { std: "docker" "start" "-a" "856b09a48d21b8b1c70006f4d9f3e2a26acfae3462d83299a2bf9c0f021713ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling serde_derive v1.0.139
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
[INFO] [stderr]     Checking salzweg v0.1.3 (/opt/rustwide/workdir/lzw)
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking ciborium-io v0.2.0
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking plotters-svg v0.3.2
[INFO] [stderr]    Compiling backtrace v0.3.66
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking textwrap v0.15.1
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking ciborium-ll v0.2.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking thousands v0.2.0
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.5
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking exploration v0.1.0 (/opt/rustwide/workdir/exploration)
[INFO] [stderr]     Checking clap v3.2.22
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking plotters v0.3.2
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking ciborium v0.2.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking dhat v0.3.0
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stderr]     Checking memory-profiling v0.1.0 (/opt/rustwide/workdir/memory-profiling)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.19s
[INFO] running `Command { std: "docker" "inspect" "856b09a48d21b8b1c70006f4d9f3e2a26acfae3462d83299a2bf9c0f021713ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "856b09a48d21b8b1c70006f4d9f3e2a26acfae3462d83299a2bf9c0f021713ad", kill_on_drop: false }`
[INFO] [stdout] 856b09a48d21b8b1c70006f4d9f3e2a26acfae3462d83299a2bf9c0f021713ad
[INFO] checking redwarp/lzw against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredwarp%2Flzw" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/redwarp/lzw 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/redwarp/lzw
[INFO] finished tweaking git repo https://github.com/redwarp/lzw
[INFO] tweaked toml for git repo https://github.com/redwarp/lzw written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/redwarp/lzw 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] ae1345c8533d0df6cd85d8136999e2dc573b97605c0a78a87735730aaa7c4eaf
[INFO] running `Command { std: "docker" "start" "-a" "ae1345c8533d0df6cd85d8136999e2dc573b97605c0a78a87735730aaa7c4eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae1345c8533d0df6cd85d8136999e2dc573b97605c0a78a87735730aaa7c4eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae1345c8533d0df6cd85d8136999e2dc573b97605c0a78a87735730aaa7c4eaf", kill_on_drop: false }`
[INFO] [stdout] ae1345c8533d0df6cd85d8136999e2dc573b97605c0a78a87735730aaa7c4eaf
[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] 4f9a5a5edce5c3426f5a2537dcc7ef261e101f9c04bbe1a6857954ed2f7ab87c
[INFO] running `Command { std: "docker" "start" "-a" "4f9a5a5edce5c3426f5a2537dcc7ef261e101f9c04bbe1a6857954ed2f7ab87c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling serde_derive v1.0.139
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]     Checking salzweg v0.1.3 (/opt/rustwide/workdir/lzw)
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking ciborium-io v0.2.0
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]    Compiling backtrace v0.3.66
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking ciborium-ll v0.2.0
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking textwrap v0.15.1
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking plotters-svg v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]     Checking crossbeam-channel v0.5.5
[INFO] [stderr]     Checking thousands v0.2.0
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]     Checking exploration v0.1.0 (/opt/rustwide/workdir/exploration)
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking clap v3.2.22
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]     Checking plotters v0.3.2
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking ciborium v0.2.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking dhat v0.3.0
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stderr]     Checking memory-profiling v0.1.0 (/opt/rustwide/workdir/memory-profiling)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.96s
[INFO] running `Command { std: "docker" "inspect" "4f9a5a5edce5c3426f5a2537dcc7ef261e101f9c04bbe1a6857954ed2f7ab87c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f9a5a5edce5c3426f5a2537dcc7ef261e101f9c04bbe1a6857954ed2f7ab87c", kill_on_drop: false }`
[INFO] [stdout] 4f9a5a5edce5c3426f5a2537dcc7ef261e101f9c04bbe1a6857954ed2f7ab87c