[INFO] fetching crate lodge 0.2.0...
[INFO] checking lodge-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate lodge 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate lodge 0.2.0 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 lodge 0.2.0
[INFO] finished tweaking crates.io crate lodge 0.2.0
[INFO] tweaked toml for crates.io crate lodge 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate lodge 0.2.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded autocfg v0.1.7
[INFO] [stderr]   Downloaded globset v0.4.4
[INFO] [stderr]   Downloaded ignore v0.4.11
[INFO] [stderr]   Downloaded hermit-abi v0.1.6
[INFO] [stderr]   Downloaded dirs-sys v0.3.4
[INFO] [stderr]   Downloaded memchr v2.3.0
[INFO] [stderr]   Downloaded arrayref v0.3.6
[INFO] [stderr]   Downloaded arrayvec v0.5.1
[INFO] [stderr]   Downloaded base64 v0.11.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.0
[INFO] [stderr]   Downloaded bstr v0.2.11
[INFO] [stderr]   Downloaded aho-corasick v0.7.8
[INFO] [stderr]   Downloaded rust-argon2 v0.7.0
[INFO] [stderr]   Downloaded blake2b_simd v0.5.10
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.0
[INFO] [stderr]   Downloaded redox_users v0.3.4
[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] 131631016f9f90021a98ca00363378c2c9f19e2f9190bafd304be6bae1c9a03f
[INFO] running `Command { std: "docker" "start" "-a" "131631016f9f90021a98ca00363378c2c9f19e2f9190bafd304be6bae1c9a03f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "131631016f9f90021a98ca00363378c2c9f19e2f9190bafd304be6bae1c9a03f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "131631016f9f90021a98ca00363378c2c9f19e2f9190bafd304be6bae1c9a03f", kill_on_drop: false }`
[INFO] [stdout] 131631016f9f90021a98ca00363378c2c9f19e2f9190bafd304be6bae1c9a03f
[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] c0fff5d82938d320a9d3e9f02ce7312bfdf0f77dc8488666ca9b6ba3ce8fd462
[INFO] running `Command { std: "docker" "start" "-a" "c0fff5d82938d320a9d3e9f02ce7312bfdf0f77dc8488666ca9b6ba3ce8fd462", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking bstr v0.2.11
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]     Checking ignore v0.4.11
[INFO] [stderr]     Checking lodge v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/source.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/source.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `Command { std: "docker" "inspect" "c0fff5d82938d320a9d3e9f02ce7312bfdf0f77dc8488666ca9b6ba3ce8fd462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0fff5d82938d320a9d3e9f02ce7312bfdf0f77dc8488666ca9b6ba3ce8fd462", kill_on_drop: false }`
[INFO] [stdout] c0fff5d82938d320a9d3e9f02ce7312bfdf0f77dc8488666ca9b6ba3ce8fd462
[INFO] checking lodge-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate lodge 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate lodge 0.2.0 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 lodge 0.2.0
[INFO] finished tweaking crates.io crate lodge 0.2.0
[INFO] tweaked toml for crates.io crate lodge 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate lodge 0.2.0 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-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] 1e3749a7d50dc6633cb7ac9d0d5968ca1eb3a8c4fb8bbc89ee25024756f0bbc2
[INFO] running `Command { std: "docker" "start" "-a" "1e3749a7d50dc6633cb7ac9d0d5968ca1eb3a8c4fb8bbc89ee25024756f0bbc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e3749a7d50dc6633cb7ac9d0d5968ca1eb3a8c4fb8bbc89ee25024756f0bbc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e3749a7d50dc6633cb7ac9d0d5968ca1eb3a8c4fb8bbc89ee25024756f0bbc2", kill_on_drop: false }`
[INFO] [stdout] 1e3749a7d50dc6633cb7ac9d0d5968ca1eb3a8c4fb8bbc89ee25024756f0bbc2
[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] 618869e84c0d8e4a31f3b987dccdaa68695579a3590a9cddafb3ccd12b4e439e
[INFO] running `Command { std: "docker" "start" "-a" "618869e84c0d8e4a31f3b987dccdaa68695579a3590a9cddafb3ccd12b4e439e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking bstr v0.2.11
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]     Checking ignore v0.4.11
[INFO] [stderr]     Checking lodge v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/source.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/source.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `Command { std: "docker" "inspect" "618869e84c0d8e4a31f3b987dccdaa68695579a3590a9cddafb3ccd12b4e439e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "618869e84c0d8e4a31f3b987dccdaa68695579a3590a9cddafb3ccd12b4e439e", kill_on_drop: false }`
[INFO] [stdout] 618869e84c0d8e4a31f3b987dccdaa68695579a3590a9cddafb3ccd12b4e439e