[INFO] fetching crate jupyter-client 0.1.0...
[INFO] checking jupyter-client-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate jupyter-client 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate jupyter-client 0.1.0 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 jupyter-client 0.1.0
[INFO] finished tweaking crates.io crate jupyter-client 0.1.0
[INFO] tweaked toml for crates.io crate jupyter-client 0.1.0 written to /workspace/builds/worker-2-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 129 packages
[INFO] [stderr]       Adding arrayvec v0.5.2 (latest: v0.7.4)
[INFO] [stderr]       Adding autocfg v0.1.8 (latest: v1.2.0)
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding blake2b_simd v0.5.11 (latest: v1.0.2)
[INFO] [stderr]       Adding block-buffer v0.7.3 (latest: v0.10.4)
[INFO] [stderr]       Adding block-padding v0.1.5 (latest: v0.3.3)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding cloudabi v0.0.3 (latest: v0.1.0)
[INFO] [stderr]       Adding constant_time_eq v0.1.5 (latest: v0.3.0)
[INFO] [stderr]       Adding crypto-mac v0.7.0 (latest: v0.11.1)
[INFO] [stderr]       Adding digest v0.8.1 (latest: v0.10.7)
[INFO] [stderr]       Adding dirs v1.0.5 (latest: v5.0.1)
[INFO] [stderr]       Adding env_logger v0.5.13 (latest: v0.11.3)
[INFO] [stderr]       Adding error-chain v0.10.0 (latest: v0.12.4)
[INFO] [stderr]       Adding generic-array v0.12.4 (latest: v1.0.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding glob v0.2.11 (latest: v0.3.1)
[INFO] [stderr]       Adding heck v0.3.3 (latest: v0.5.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding hex v0.3.2 (latest: v0.4.3)
[INFO] [stderr]       Adding hmac v0.7.1 (latest: v0.12.1)
[INFO] [stderr]       Adding humantime v1.3.0 (latest: v2.1.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding opaque-debug v0.2.3 (latest: v0.3.1)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.79)
[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.35)
[INFO] [stderr]       Adding rand v0.6.5 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.1.1 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.1.0 (latest: v0.3.2)
[INFO] [stderr]       Adding rand_isaac v0.1.1 (latest: v0.3.0)
[INFO] [stderr]       Adding rand_jitter v0.1.4 (latest: v0.4.0)
[INFO] [stderr]       Adding rand_os v0.1.3 (latest: v0.2.2)
[INFO] [stderr]       Adding rand_pcg v0.1.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_xorshift v0.1.1 (latest: v0.3.0)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding redox_syscall v0.1.57 (latest: v0.5.1)
[INFO] [stderr]       Adding redox_users v0.3.5 (latest: v0.4.5)
[INFO] [stderr]       Adding rust-argon2 v0.8.3 (latest: v2.1.0)
[INFO] [stderr]       Adding sha2 v0.8.2 (latest: v0.10.8)
[INFO] [stderr]       Adding strsim v0.8.0 (latest: v0.11.1)
[INFO] [stderr]       Adding structopt v0.2.18 (latest: v0.3.26)
[INFO] [stderr]       Adding structopt-derive v0.2.18 (latest: v0.4.18)
[INFO] [stderr]       Adding subtle v1.0.0 (latest: v2.5.0)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.58)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[INFO] [stderr]       Adding toml v0.2.1 (latest: v0.8.12)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.4)
[INFO] [stderr]       Adding uuid v0.7.4 (latest: v1.8.0)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[INFO] [stderr]       Adding zmq v0.8.3 (latest: v0.10.0)
[INFO] [stderr]       Adding zmq-sys v0.8.3 (latest: v0.12.0)
[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 toml v0.2.1
[INFO] [stderr]   Downloaded hex v0.3.2
[INFO] [stderr]   Downloaded error-chain v0.10.0
[INFO] [stderr]   Downloaded metadeps v1.1.2
[INFO] [stderr]   Downloaded zmq-sys v0.8.3
[INFO] [stderr]   Downloaded zmq v0.8.3
[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] 349c36a1d72b9bee9ce98c6f925c91cbc109dffd94b3e1872e02a63b06eab606
[INFO] running `Command { std: "docker" "start" "-a" "349c36a1d72b9bee9ce98c6f925c91cbc109dffd94b3e1872e02a63b06eab606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "349c36a1d72b9bee9ce98c6f925c91cbc109dffd94b3e1872e02a63b06eab606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "349c36a1d72b9bee9ce98c6f925c91cbc109dffd94b3e1872e02a63b06eab606", kill_on_drop: false }`
[INFO] [stdout] 349c36a1d72b9bee9ce98c6f925c91cbc109dffd94b3e1872e02a63b06eab606
[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] 6b27ea04a0e6db8879bd83892a4e0ad15cf575467d1f2bd38e60fd51999b4cc6
[INFO] running `Command { std: "docker" "start" "-a" "6b27ea04a0e6db8879bd83892a4e0ad15cf575467d1f2bd38e60fd51999b4cc6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling zmq-sys v0.8.3
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling zmq v0.8.3
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking jupyter-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `zmq` is imported redundantly
[INFO] [stdout]   --> src/socket.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use zmq;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout] 68 | extern crate zmq;
[INFO] [stdout]    | ----------------- the item `zmq` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `zmq` is imported redundantly
[INFO] [stdout]   --> src/socket.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use zmq;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout] 68 | extern crate zmq;
[INFO] [stdout]    | ----------------- the item `zmq` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stdin_port`, `signature_scheme`, and `kernel_name` are never read
[INFO] [stdout]   --> src/connection_config.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout] 5  | pub struct ConnectionConfig {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8  |     pub stdin_port: u32,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub signature_scheme: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     pub kernel_name: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConnectionConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stdin_port`, `signature_scheme`, and `kernel_name` are never read
[INFO] [stdout]   --> src/connection_config.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout] 5  | pub struct ConnectionConfig {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8  |     pub stdin_port: u32,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub signature_scheme: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     pub kernel_name: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConnectionConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.88s
[INFO] running `Command { std: "docker" "inspect" "6b27ea04a0e6db8879bd83892a4e0ad15cf575467d1f2bd38e60fd51999b4cc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b27ea04a0e6db8879bd83892a4e0ad15cf575467d1f2bd38e60fd51999b4cc6", kill_on_drop: false }`
[INFO] [stdout] 6b27ea04a0e6db8879bd83892a4e0ad15cf575467d1f2bd38e60fd51999b4cc6
[INFO] checking jupyter-client-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate jupyter-client 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate jupyter-client 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jupyter-client 0.1.0
[INFO] finished tweaking crates.io crate jupyter-client 0.1.0
[INFO] tweaked toml for crates.io crate jupyter-client 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df709ae070dc8eb31208943e08d7e20f29b113bb4af63bd0b20d92e51a91a2d3
[INFO] running `Command { std: "docker" "start" "-a" "df709ae070dc8eb31208943e08d7e20f29b113bb4af63bd0b20d92e51a91a2d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df709ae070dc8eb31208943e08d7e20f29b113bb4af63bd0b20d92e51a91a2d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df709ae070dc8eb31208943e08d7e20f29b113bb4af63bd0b20d92e51a91a2d3", kill_on_drop: false }`
[INFO] [stdout] df709ae070dc8eb31208943e08d7e20f29b113bb4af63bd0b20d92e51a91a2d3
[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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db88fdd0ddab3bf5abd384f940055598614c6fe516c5d9f1dfd916c97dda203c
[INFO] running `Command { std: "docker" "start" "-a" "db88fdd0ddab3bf5abd384f940055598614c6fe516c5d9f1dfd916c97dda203c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling unicode-xid v0.2.4
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[INFO] [stderr]     Checking log v0.4.21
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[INFO] [stderr]    Compiling zmq-sys v0.8.3
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking object v0.32.2
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[INFO] [stderr]     Checking aho-corasick v1.1.3
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[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling zmq v0.8.3
[INFO] [stderr]     Checking textwrap v0.11.0
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[INFO] [stderr]     Checking itoa v1.0.11
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[INFO] [stderr]     Checking jupyter-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `zmq` is imported redundantly
[INFO] [stdout]   --> src/socket.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use zmq;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout] 68 | extern crate zmq;
[INFO] [stdout]    | ----------------- the item `zmq` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `zmq` is imported redundantly
[INFO] [stdout]   --> src/socket.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use zmq;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout] 68 | extern crate zmq;
[INFO] [stdout]    | ----------------- the item `zmq` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stdin_port`, `signature_scheme`, and `kernel_name` are never read
[INFO] [stdout]   --> src/connection_config.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout] 5  | pub struct ConnectionConfig {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8  |     pub stdin_port: u32,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub signature_scheme: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     pub kernel_name: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConnectionConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stdin_port`, `signature_scheme`, and `kernel_name` are never read
[INFO] [stdout]   --> src/connection_config.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout] 5  | pub struct ConnectionConfig {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8  |     pub stdin_port: u32,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub signature_scheme: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     pub kernel_name: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ConnectionConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.44s
[INFO] running `Command { std: "docker" "inspect" "db88fdd0ddab3bf5abd384f940055598614c6fe516c5d9f1dfd916c97dda203c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db88fdd0ddab3bf5abd384f940055598614c6fe516c5d9f1dfd916c97dda203c", kill_on_drop: false }`
[INFO] [stdout] db88fdd0ddab3bf5abd384f940055598614c6fe516c5d9f1dfd916c97dda203c