[INFO] fetching crate couch_rs 0.9.4...
[INFO] checking couch_rs-0.9.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate couch_rs 0.9.4 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate couch_rs 0.9.4 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 couch_rs 0.9.4
[INFO] finished tweaking crates.io crate couch_rs 0.9.4
[INFO] tweaked toml for crates.io crate couch_rs 0.9.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate couch_rs 0.9.4 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded couch_rs_derive v0.9.4
[INFO] [stderr]   Downloaded async-compression v0.4.5
[INFO] [stderr]   Downloaded errno v0.3.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] cc6eb287298d6c1da874f4f9aaa5aa10d1a78340508d9abf325e25597ae8b777
[INFO] running `Command { std: "docker" "start" "-a" "cc6eb287298d6c1da874f4f9aaa5aa10d1a78340508d9abf325e25597ae8b777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc6eb287298d6c1da874f4f9aaa5aa10d1a78340508d9abf325e25597ae8b777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc6eb287298d6c1da874f4f9aaa5aa10d1a78340508d9abf325e25597ae8b777", kill_on_drop: false }`
[INFO] [stdout] cc6eb287298d6c1da874f4f9aaa5aa10d1a78340508d9abf325e25597ae8b777
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 647681d70f6d0818dffc2a0aa494e56a1a337d982945a9055487693dde6c140e
[INFO] running `Command { std: "docker" "start" "-a" "647681d70f6d0818dffc2a0aa494e56a1a337d982945a9055487693dde6c140e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling openssl v0.10.59
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking percent-encoding v2.3.0
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking url v2.4.1
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]    Compiling openssl-sys v0.9.95
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling couch_rs_derive v0.9.4
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking async-compression v0.4.5
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking h2 v0.3.21
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.22
[INFO] [stderr]     Checking couch_rs v0.9.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/client.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     self,
[INFO] [stdout]    |     ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `CouchError` is imported redundantly
[INFO] [stdout]     --> src/database.rs:1257:9
[INFO] [stdout]      |
[INFO] [stdout] 1256 |     use super::*;
[INFO] [stdout]      |         -------- the item `CouchError` is already imported here
[INFO] [stdout] 1257 |     use crate::error::CouchError;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/client.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     self,
[INFO] [stdout]    |     ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings 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 21.61s
[INFO] running `Command { std: "docker" "inspect" "647681d70f6d0818dffc2a0aa494e56a1a337d982945a9055487693dde6c140e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "647681d70f6d0818dffc2a0aa494e56a1a337d982945a9055487693dde6c140e", kill_on_drop: false }`
[INFO] [stdout] 647681d70f6d0818dffc2a0aa494e56a1a337d982945a9055487693dde6c140e
[INFO] checking couch_rs-0.9.4 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate couch_rs 0.9.4 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate couch_rs 0.9.4 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 couch_rs 0.9.4
[INFO] finished tweaking crates.io crate couch_rs 0.9.4
[INFO] tweaked toml for crates.io crate couch_rs 0.9.4 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate couch_rs 0.9.4 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4bec829b43933dbc0739e8f0d3eaf12fefaefa404fd513838a847cdc56035d37
[INFO] running `Command { std: "docker" "start" "-a" "4bec829b43933dbc0739e8f0d3eaf12fefaefa404fd513838a847cdc56035d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bec829b43933dbc0739e8f0d3eaf12fefaefa404fd513838a847cdc56035d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bec829b43933dbc0739e8f0d3eaf12fefaefa404fd513838a847cdc56035d37", kill_on_drop: false }`
[INFO] [stdout] 4bec829b43933dbc0739e8f0d3eaf12fefaefa404fd513838a847cdc56035d37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 72dea55324250333daa2614ad29373dc64fb23e0611f1bf5661bd14f10669082
[INFO] running `Command { std: "docker" "start" "-a" "72dea55324250333daa2614ad29373dc64fb23e0611f1bf5661bd14f10669082", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling openssl v0.10.59
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking percent-encoding v2.3.0
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking url v2.4.1
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling openssl-sys v0.9.95
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling couch_rs_derive v0.9.4
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking async-compression v0.4.5
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking h2 v0.3.21
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.22
[INFO] [stderr]     Checking couch_rs v0.9.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/client.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     self,
[INFO] [stdout]    |     ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/client.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     self,
[INFO] [stdout]    |     ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `CouchError` is imported redundantly
[INFO] [stdout]     --> src/database.rs:1257:9
[INFO] [stdout]      |
[INFO] [stdout] 1256 |     use super::*;
[INFO] [stdout]      |         -------- the item `CouchError` is already imported here
[INFO] [stdout] 1257 |     use crate::error::CouchError;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.28s
[INFO] running `Command { std: "docker" "inspect" "72dea55324250333daa2614ad29373dc64fb23e0611f1bf5661bd14f10669082", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72dea55324250333daa2614ad29373dc64fb23e0611f1bf5661bd14f10669082", kill_on_drop: false }`
[INFO] [stdout] 72dea55324250333daa2614ad29373dc64fb23e0611f1bf5661bd14f10669082