[INFO] fetching crate confitul 0.1.4...
[INFO] checking confitul-0.1.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate confitul 0.1.4 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate confitul 0.1.4 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 confitul 0.1.4
[INFO] finished tweaking crates.io crate confitul 0.1.4
[INFO] tweaked toml for crates.io crate confitul 0.1.4 written to /workspace/builds/worker-3-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]     Updating crates.io index
[INFO] [stderr]      Locking 64 packages
[INFO] [stderr]       Adding block-buffer v0.9.0 (latest: v0.10.4)
[INFO] [stderr]       Adding ckey v0.1.1 (latest: v0.4.3)
[INFO] [stderr]       Adding curve25519-dalek v3.2.1 (latest: v4.1.2)
[INFO] [stderr]       Adding digest v0.9.0 (latest: v0.10.7)
[INFO] [stderr]       Adding ed25519 v1.5.3 (latest: v2.2.3)
[INFO] [stderr]       Adding ed25519-dalek v1.0.1 (latest: v2.1.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding gethostname v0.2.3 (latest: v0.4.3)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding half v1.8.3 (latest: v2.4.0)
[INFO] [stderr]       Adding hashlru v0.6.1 (latest: v0.11.1)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding sha2 v0.9.9 (latest: v0.10.8)
[INFO] [stderr]       Adding signature v1.6.4 (latest: v2.2.0)
[INFO] [stderr]       Adding vclock v0.2.3 (latest: v0.4.4)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding zeroize v1.3.0 (latest: v1.7.0)
[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 gethostname v0.2.3
[INFO] [stderr]   Downloaded ckey v0.1.1
[INFO] [stderr]   Downloaded hashlru v0.6.1
[INFO] [stderr]   Downloaded vclock v0.2.3
[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] 321b5eb742272f8b3fc66ac3996d3868f3302f15762f9e8dce2000c8c8aa7a8b
[INFO] running `Command { std: "docker" "start" "-a" "321b5eb742272f8b3fc66ac3996d3868f3302f15762f9e8dce2000c8c8aa7a8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "321b5eb742272f8b3fc66ac3996d3868f3302f15762f9e8dce2000c8c8aa7a8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "321b5eb742272f8b3fc66ac3996d3868f3302f15762f9e8dce2000c8c8aa7a8b", kill_on_drop: false }`
[INFO] [stdout] 321b5eb742272f8b3fc66ac3996d3868f3302f15762f9e8dce2000c8c8aa7a8b
[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] 92e4691cacb2cf7297464efc1c883a61a12b2ba75a8b291504c495054eec61d7
[INFO] running `Command { std: "docker" "start" "-a" "92e4691cacb2cf7297464efc1c883a61a12b2ba75a8b291504c495054eec61d7", kill_on_drop: false }`
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking signature v1.6.4
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking gethostname v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking curve25519-dalek v3.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking ed25519 v1.5.3
[INFO] [stderr]     Checking hashlru v0.6.1
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking ckey v0.1.1
[INFO] [stderr]     Checking vclock v0.2.3
[INFO] [stderr]     Checking confitul v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` 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 `signature` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use signature;
[INFO] [stdout]   |     ^^^^^^^^^ the item `signature` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `signature` is imported redundantly
[INFO] [stdout]  --> src/host.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use signature;
[INFO] [stdout]   |     ^^^^^^^^^ the item `signature` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/host_id.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/host_id.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/local_host.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]   --> src/memory_store.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::iter::Iterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/remote_host.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/remote_host.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cluster_options.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     use serde_json;
[INFO] [stdout]    |         ^^^^^^^^^^ the item `serde_json` 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 `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `signature` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use signature;
[INFO] [stdout]   |     ^^^^^^^^^ the item `signature` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `signature` is imported redundantly
[INFO] [stdout]  --> src/host.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use signature;
[INFO] [stdout]   |     ^^^^^^^^^ the item `signature` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/host_id.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/host_id.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/local_host.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/local_host.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |     use serde_json;
[INFO] [stdout]     |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/local_host_options.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     use serde_json;
[INFO] [stdout]     |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]   --> src/memory_store.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::iter::Iterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/remote_host.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/remote_host.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/remote_host.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     use serde_json;
[INFO] [stdout]    |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.79s
[INFO] running `Command { std: "docker" "inspect" "92e4691cacb2cf7297464efc1c883a61a12b2ba75a8b291504c495054eec61d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92e4691cacb2cf7297464efc1c883a61a12b2ba75a8b291504c495054eec61d7", kill_on_drop: false }`
[INFO] [stdout] 92e4691cacb2cf7297464efc1c883a61a12b2ba75a8b291504c495054eec61d7
[INFO] checking confitul-0.1.4 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate confitul 0.1.4 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate confitul 0.1.4 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 confitul 0.1.4
[INFO] finished tweaking crates.io crate confitul 0.1.4
[INFO] tweaked toml for crates.io crate confitul 0.1.4 written to /workspace/builds/worker-3-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-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc9958ed175ba62fe32299e8ec5431a0251012a0f0d1fd79a75a8ddb29614e21
[INFO] running `Command { std: "docker" "start" "-a" "cc9958ed175ba62fe32299e8ec5431a0251012a0f0d1fd79a75a8ddb29614e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc9958ed175ba62fe32299e8ec5431a0251012a0f0d1fd79a75a8ddb29614e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc9958ed175ba62fe32299e8ec5431a0251012a0f0d1fd79a75a8ddb29614e21", kill_on_drop: false }`
[INFO] [stdout] cc9958ed175ba62fe32299e8ec5431a0251012a0f0d1fd79a75a8ddb29614e21
[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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 038a9a9e609a183f43298b4c46e624866e1b4ba21ad3efb8231bb9f01392bfdc
[INFO] running `Command { std: "docker" "start" "-a" "038a9a9e609a183f43298b4c46e624866e1b4ba21ad3efb8231bb9f01392bfdc", kill_on_drop: false }`
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking signature v1.6.4
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking gethostname v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking curve25519-dalek v3.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking ed25519 v1.5.3
[INFO] [stderr]     Checking hashlru v0.6.1
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking ckey v0.1.1
[INFO] [stderr]     Checking vclock v0.2.3
[INFO] [stderr]     Checking confitul v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cluster_options.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     use serde_json;
[INFO] [stdout]    |         ^^^^^^^^^^ the item `serde_json` 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 `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `signature` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use signature;
[INFO] [stdout]   |     ^^^^^^^^^ the item `signature` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `signature` is imported redundantly
[INFO] [stdout]  --> src/host.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use signature;
[INFO] [stdout]   |     ^^^^^^^^^ the item `signature` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/host_id.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/host_id.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/local_host.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/local_host.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |     use serde_json;
[INFO] [stdout]     |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/local_host_options.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     use serde_json;
[INFO] [stdout]     |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]   --> src/memory_store.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::iter::Iterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/remote_host.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/remote_host.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/remote_host.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     use serde_json;
[INFO] [stdout]    |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` 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 `signature` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use signature;
[INFO] [stdout]   |     ^^^^^^^^^ the item `signature` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `signature` is imported redundantly
[INFO] [stdout]  --> src/host.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use signature;
[INFO] [stdout]   |     ^^^^^^^^^ the item `signature` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/host_id.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/host_id.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/local_host.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]   --> src/memory_store.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::iter::Iterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ed25519_dalek` is imported redundantly
[INFO] [stdout]  --> src/remote_host.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ed25519_dalek;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `ed25519_dalek` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/remote_host.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.57s
[INFO] running `Command { std: "docker" "inspect" "038a9a9e609a183f43298b4c46e624866e1b4ba21ad3efb8231bb9f01392bfdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "038a9a9e609a183f43298b4c46e624866e1b4ba21ad3efb8231bb9f01392bfdc", kill_on_drop: false }`
[INFO] [stdout] 038a9a9e609a183f43298b4c46e624866e1b4ba21ad3efb8231bb9f01392bfdc