[INFO] fetching crate nut-client 0.4.2...
[INFO] checking nut-client-0.4.2 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate nut-client 0.4.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate nut-client 0.4.2 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nut-client 0.4.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate nut-client 0.4.2
[INFO] tweaked toml for crates.io crate nut-client 0.4.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate nut-client 0.4.2 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccdc7100b5c6576e71370f0f4cfd84bb2adc4babc7ee85bddb864bc323d5564c
[INFO] running `Command { std: "docker" "start" "-a" "ccdc7100b5c6576e71370f0f4cfd84bb2adc4babc7ee85bddb864bc323d5564c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccdc7100b5c6576e71370f0f4cfd84bb2adc4babc7ee85bddb864bc323d5564c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccdc7100b5c6576e71370f0f4cfd84bb2adc4babc7ee85bddb864bc323d5564c", kill_on_drop: false }`
[INFO] [stdout] ccdc7100b5c6576e71370f0f4cfd84bb2adc4babc7ee85bddb864bc323d5564c
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f214c53aed371fe63749fbdc01ced9730d1ce64537b04d4df435894b4333d90e
[INFO] running `Command { std: "docker" "start" "-a" "f214c53aed371fe63749fbdc01ced9730d1ce64537b04d4df435894b4333d90e", kill_on_drop: false }`
[INFO] [stderr]     Checking shell-words v1.0.0
[INFO] [stderr]     Checking nut-client v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ClientError`
[INFO] [stdout]  --> src/blocking/mod.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{ClientError, Config, Host, NutError};
[INFO] [stdout]   |             ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClientError`
[INFO] [stdout]  --> src/blocking/mod.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{ClientError, Config, Host, NutError};
[INFO] [stdout]   |             ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `StartTLS` is never constructed
[INFO] [stdout]   --> src/cmd.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub enum Command<'a> {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     StartTLS,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cmd.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     EndList(String),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Response` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 67 |     EndList(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ssl` and `ssl_insecure` are never read
[INFO] [stdout]   --> src/config.rs:98:16
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct Config {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 98 |     pub(crate) ssl: bool,
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 99 |     pub(crate) ssl_insecure: bool,
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `StartTLS` is never constructed
[INFO] [stdout]   --> src/cmd.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub enum Command<'a> {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     StartTLS,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cmd.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |     EndList(String),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Response` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 67 |     EndList(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ssl` and `ssl_insecure` are never read
[INFO] [stdout]   --> src/config.rs:98:16
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct Config {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 98 |     pub(crate) ssl: bool,
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 99 |     pub(crate) ssl_insecure: bool,
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "f214c53aed371fe63749fbdc01ced9730d1ce64537b04d4df435894b4333d90e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f214c53aed371fe63749fbdc01ced9730d1ce64537b04d4df435894b4333d90e", kill_on_drop: false }`
[INFO] [stdout] f214c53aed371fe63749fbdc01ced9730d1ce64537b04d4df435894b4333d90e