[INFO] fetching crate zmq2 0.5.0...
[INFO] checking zmq2-0.5.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate zmq2 0.5.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate zmq2 0.5.0 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 zmq2 0.5.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate zmq2 0.5.0
[INFO] tweaked toml for crates.io crate zmq2 0.5.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate zmq2 0.5.0 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 jobserver v0.1.24
[INFO] [stderr]   Downloaded dircpy v0.3.8
[INFO] [stderr]   Downloaded zmq-sys2 v0.3.0
[INFO] [stderr]   Downloaded num_threads v0.1.3
[INFO] [stderr]   Downloaded timebomb v0.1.2
[INFO] [stderr]   Downloaded version-compare v0.1.0
[INFO] [stderr]   Downloaded system-deps v6.0.2
[INFO] [stderr]   Downloaded trybuild v1.0.56
[INFO] [stderr]   Downloaded cfg-expr v0.10.2
[INFO] [stderr]   Downloaded atom v0.3.6
[INFO] [stderr]   Downloaded nix v0.23.1
[INFO] [stderr]   Downloaded pulse v0.5.3
[INFO] [stderr]   Downloaded time v0.3.7
[INFO] [stderr]   Downloaded zeromq-src v0.2.2+4.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2552beb2b912c42d635459861164366f7b8140487d1f2511b8c31ce4838cd34b
[INFO] running `Command { std: "docker" "start" "-a" "2552beb2b912c42d635459861164366f7b8140487d1f2511b8c31ce4838cd34b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2552beb2b912c42d635459861164366f7b8140487d1f2511b8c31ce4838cd34b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2552beb2b912c42d635459861164366f7b8140487d1f2511b8c31ce4838cd34b", kill_on_drop: false }`
[INFO] [stdout] 2552beb2b912c42d635459861164366f7b8140487d1f2511b8c31ce4838cd34b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 709425b2585e8f505c08978e927a2c8c4cdfa833e44575f637ddbdb75449e03b
[INFO] running `Command { std: "docker" "start" "-a" "709425b2585e8f505c08978e927a2c8c4cdfa833e44575f637ddbdb75449e03b", kill_on_drop: false }`
[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 serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling cfg-expr v0.10.2
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling dircpy v0.3.8
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking atom v0.3.6
[INFO] [stderr]     Checking num_threads v0.1.3
[INFO] [stderr]    Compiling zmq2 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]    Compiling trybuild v1.0.56
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking time v0.3.7
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking pulse v0.5.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking timebomb v0.1.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling zeromq-src v0.2.2+4.3.4
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling system-deps v6.0.2
[INFO] [stderr]    Compiling zmq-sys2 v0.3.0
[INFO] [stdout] warning: struct `Input` is never constructed
[INFO] [stdout]   --> tests/z85.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Input(Vec<u8>);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "709425b2585e8f505c08978e927a2c8c4cdfa833e44575f637ddbdb75449e03b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "709425b2585e8f505c08978e927a2c8c4cdfa833e44575f637ddbdb75449e03b", kill_on_drop: false }`
[INFO] [stdout] 709425b2585e8f505c08978e927a2c8c4cdfa833e44575f637ddbdb75449e03b
[INFO] checking zmq2-0.5.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate zmq2 0.5.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate zmq2 0.5.0 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 zmq2 0.5.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate zmq2 0.5.0
[INFO] tweaked toml for crates.io crate zmq2 0.5.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate zmq2 0.5.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 76cb6b972aefa9c60e67b91da0569e1cbb91e62b729c501a53c0c6b7a3d750c8
[INFO] running `Command { std: "docker" "start" "-a" "76cb6b972aefa9c60e67b91da0569e1cbb91e62b729c501a53c0c6b7a3d750c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76cb6b972aefa9c60e67b91da0569e1cbb91e62b729c501a53c0c6b7a3d750c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76cb6b972aefa9c60e67b91da0569e1cbb91e62b729c501a53c0c6b7a3d750c8", kill_on_drop: false }`
[INFO] [stdout] 76cb6b972aefa9c60e67b91da0569e1cbb91e62b729c501a53c0c6b7a3d750c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 16c7a7251d0be95b58e2ec5efe081778850869926b9fea07953acd4bed574a51
[INFO] running `Command { std: "docker" "start" "-a" "16c7a7251d0be95b58e2ec5efe081778850869926b9fea07953acd4bed574a51", kill_on_drop: false }`
[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 serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling cfg-expr v0.10.2
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling dircpy v0.3.8
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking atom v0.3.6
[INFO] [stderr]    Compiling trybuild v1.0.56
[INFO] [stderr]     Checking num_threads v0.1.3
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]    Compiling zmq2 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking time v0.3.7
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking pulse v0.5.3
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking timebomb v0.1.2
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling zeromq-src v0.2.2+4.3.4
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling system-deps v6.0.2
[INFO] [stderr]    Compiling zmq-sys2 v0.3.0
[INFO] [stdout] warning: struct `Input` is never constructed
[INFO] [stdout]   --> tests/z85.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Input(Vec<u8>);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 53s
[INFO] running `Command { std: "docker" "inspect" "16c7a7251d0be95b58e2ec5efe081778850869926b9fea07953acd4bed574a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16c7a7251d0be95b58e2ec5efe081778850869926b9fea07953acd4bed574a51", kill_on_drop: false }`
[INFO] [stdout] 16c7a7251d0be95b58e2ec5efe081778850869926b9fea07953acd4bed574a51