[INFO] fetching crate knrs 0.2.1...
[INFO] checking knrs-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate knrs 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate knrs 0.2.1 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 knrs 0.2.1
[INFO] finished tweaking crates.io crate knrs 0.2.1
[INFO] tweaked toml for crates.io crate knrs 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages
[INFO] [stderr]       Adding byteorder v0.5.3 (latest: v1.5.0)
[INFO] [stderr]       Adding csv v0.14.7 (latest: v1.3.0)
[INFO] [stderr]       Adding glob v0.2.11 (latest: v0.3.1)
[INFO] [stderr]       Adding libc v0.1.12 (latest: v0.2.153)
[INFO] [stderr]       Adding pretty-bytes v0.1.0 (latest: v0.2.2)
[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 quick-csv v0.1.6
[INFO] [stderr]   Downloaded csv v0.14.7
[INFO] [stderr]   Downloaded pretty-bytes v0.1.0
[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] 96d2a995eb4c5e9a0b002ce893a016b85d5c9fcff65b4f6bf396b40d35543538
[INFO] running `Command { std: "docker" "start" "-a" "96d2a995eb4c5e9a0b002ce893a016b85d5c9fcff65b4f6bf396b40d35543538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96d2a995eb4c5e9a0b002ce893a016b85d5c9fcff65b4f6bf396b40d35543538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96d2a995eb4c5e9a0b002ce893a016b85d5c9fcff65b4f6bf396b40d35543538", kill_on_drop: false }`
[INFO] [stdout] 96d2a995eb4c5e9a0b002ce893a016b85d5c9fcff65b4f6bf396b40d35543538
[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] a55c4949bfc4d9e9cdf7f21ee3b1124fd5b8bc42a5ef46f94ddcc9ee62dad91c
[INFO] running `Command { std: "docker" "start" "-a" "a55c4949bfc4d9e9cdf7f21ee3b1124fd5b8bc42a5ef46f94ddcc9ee62dad91c", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking pretty-bytes v0.1.0
[INFO] [stderr]     Checking csv v0.14.7
[INFO] [stderr]     Checking quick-csv v0.1.6
[INFO] [stderr]     Checking knrs v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.48s
[INFO] running `Command { std: "docker" "inspect" "a55c4949bfc4d9e9cdf7f21ee3b1124fd5b8bc42a5ef46f94ddcc9ee62dad91c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a55c4949bfc4d9e9cdf7f21ee3b1124fd5b8bc42a5ef46f94ddcc9ee62dad91c", kill_on_drop: false }`
[INFO] [stdout] a55c4949bfc4d9e9cdf7f21ee3b1124fd5b8bc42a5ef46f94ddcc9ee62dad91c
[INFO] checking knrs-0.2.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate knrs 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate knrs 0.2.1 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 knrs 0.2.1
[INFO] finished tweaking crates.io crate knrs 0.2.1
[INFO] tweaked toml for crates.io crate knrs 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages
[INFO] [stderr]       Adding byteorder v0.5.3 (latest: v1.5.0)
[INFO] [stderr]       Adding csv v0.14.7 (latest: v1.3.0)
[INFO] [stderr]       Adding glob v0.2.11 (latest: v0.3.1)
[INFO] [stderr]       Adding libc v0.1.12 (latest: v0.2.153)
[INFO] [stderr]       Adding pretty-bytes v0.1.0 (latest: v0.2.2)
[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] 93d5b7e6480439eac5edf182262530f62b6683245729ce7ffda430f9e7ca54b0
[INFO] running `Command { std: "docker" "start" "-a" "93d5b7e6480439eac5edf182262530f62b6683245729ce7ffda430f9e7ca54b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93d5b7e6480439eac5edf182262530f62b6683245729ce7ffda430f9e7ca54b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d5b7e6480439eac5edf182262530f62b6683245729ce7ffda430f9e7ca54b0", kill_on_drop: false }`
[INFO] [stdout] 93d5b7e6480439eac5edf182262530f62b6683245729ce7ffda430f9e7ca54b0
[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] 3eaa269e8d37787ead73460af298d8637a34129f7555dd3031dbb91d587b771d
[INFO] running `Command { std: "docker" "start" "-a" "3eaa269e8d37787ead73460af298d8637a34129f7555dd3031dbb91d587b771d", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking pretty-bytes v0.1.0
[INFO] [stderr]     Checking csv v0.14.7
[INFO] [stderr]     Checking quick-csv v0.1.6
[INFO] [stderr]     Checking knrs v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `Command { std: "docker" "inspect" "3eaa269e8d37787ead73460af298d8637a34129f7555dd3031dbb91d587b771d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eaa269e8d37787ead73460af298d8637a34129f7555dd3031dbb91d587b771d", kill_on_drop: false }`
[INFO] [stdout] 3eaa269e8d37787ead73460af298d8637a34129f7555dd3031dbb91d587b771d