[INFO] fetching crate disklru 0.3.2...
[INFO] checking disklru-0.3.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate disklru 0.3.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate disklru 0.3.2 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 disklru 0.3.2
[INFO] finished tweaking crates.io crate disklru 0.3.2
[INFO] tweaked toml for crates.io crate disklru 0.3.2 written to /workspace/builds/worker-6-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 59 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding parking_lot v0.11.2 (latest: v0.12.1)
[INFO] [stderr]       Adding parking_lot_core v0.8.6 (latest: v0.9.9)
[INFO] [stderr]       Adding redox_syscall v0.2.16 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding zstd v0.9.2+zstd.1.5.1 (latest: v0.13.1)
[INFO] [stderr]       Adding zstd-safe v4.1.3+zstd.1.5.1 (latest: v7.1.0)
[INFO] [stderr]       Adding zstd-sys v1.6.2+zstd.1.5.1 (latest: v2.0.10+zstd.1.5.6)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zstd-safe v4.1.3+zstd.1.5.1
[INFO] [stderr]   Downloaded zstd v0.9.2+zstd.1.5.1
[INFO] [stderr]   Downloaded zstd-sys v1.6.2+zstd.1.5.1
[INFO] [stderr]   Downloaded sled v0.34.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a9b6afc0fa04a18706d850063a2e7ed924efeb720cad0c7de3861e440e534048
[INFO] running `Command { std: "docker" "start" "-a" "a9b6afc0fa04a18706d850063a2e7ed924efeb720cad0c7de3861e440e534048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9b6afc0fa04a18706d850063a2e7ed924efeb720cad0c7de3861e440e534048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9b6afc0fa04a18706d850063a2e7ed924efeb720cad0c7de3861e440e534048", kill_on_drop: false }`
[INFO] [stdout] a9b6afc0fa04a18706d850063a2e7ed924efeb720cad0c7de3861e440e534048
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 40108ec96419748a188d5ea2592b32f38e4c411f3ea0772d8acf0f0b2884d7f5
[INFO] running `Command { std: "docker" "start" "-a" "40108ec96419748a188d5ea2592b32f38e4c411f3ea0772d8acf0f0b2884d7f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling zstd-safe v4.1.3+zstd.1.5.1
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling jobserver v0.1.28
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking rmp v0.8.12
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]    Compiling zstd-sys v1.6.2+zstd.1.5.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking rmp-serde v1.1.2
[INFO] [stderr]     Checking zstd v0.9.2+zstd.1.5.1
[INFO] [stderr]     Checking sled v0.34.7
[INFO] [stderr]     Checking disklru v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rmp_serde` is imported redundantly
[INFO] [stdout]  --> src/serial.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rmp_serde;
[INFO] [stdout]   |     ^^^^^^^^^ the item `rmp_serde` 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 `sled` is imported redundantly
[INFO] [stdout]  --> src/store.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sled;
[INFO] [stdout]   |     ^^^^ the item `sled` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rmp_serde` is imported redundantly
[INFO] [stdout]  --> src/serial.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rmp_serde;
[INFO] [stdout]   |     ^^^^^^^^^ the item `rmp_serde` 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 `sled` is imported redundantly
[INFO] [stdout]  --> src/store.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sled;
[INFO] [stdout]   |     ^^^^ the item `sled` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `HashMap` is imported redundantly
[INFO] [stdout]    --> src/store.rs:815:9
[INFO] [stdout]     |
[INFO] [stdout] 812 |     use super::*;
[INFO] [stdout]     |         -------- the item `HashMap` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 815 |     use std::collections::HashMap;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.39s
[INFO] running `Command { std: "docker" "inspect" "40108ec96419748a188d5ea2592b32f38e4c411f3ea0772d8acf0f0b2884d7f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40108ec96419748a188d5ea2592b32f38e4c411f3ea0772d8acf0f0b2884d7f5", kill_on_drop: false }`
[INFO] [stdout] 40108ec96419748a188d5ea2592b32f38e4c411f3ea0772d8acf0f0b2884d7f5
[INFO] checking disklru-0.3.2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate disklru 0.3.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate disklru 0.3.2 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 disklru 0.3.2
[INFO] finished tweaking crates.io crate disklru 0.3.2
[INFO] tweaked toml for crates.io crate disklru 0.3.2 written to /workspace/builds/worker-6-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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9b2c1d116462147dffd617d4689cd42d426820b412f1dc32e0d1a3bc7a019f7e
[INFO] running `Command { std: "docker" "start" "-a" "9b2c1d116462147dffd617d4689cd42d426820b412f1dc32e0d1a3bc7a019f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b2c1d116462147dffd617d4689cd42d426820b412f1dc32e0d1a3bc7a019f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b2c1d116462147dffd617d4689cd42d426820b412f1dc32e0d1a3bc7a019f7e", kill_on_drop: false }`
[INFO] [stdout] 9b2c1d116462147dffd617d4689cd42d426820b412f1dc32e0d1a3bc7a019f7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3ddfe5621d41ec870d0ee6a188f8b6dc657565e21f7424f34b42d532721d79d8
[INFO] running `Command { std: "docker" "start" "-a" "3ddfe5621d41ec870d0ee6a188f8b6dc657565e21f7424f34b42d532721d79d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling zstd-safe v4.1.3+zstd.1.5.1
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling jobserver v0.1.28
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking rmp v0.8.12
[INFO] [stderr]    Compiling zstd-sys v1.6.2+zstd.1.5.1
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking rmp-serde v1.1.2
[INFO] [stderr]     Checking zstd v0.9.2+zstd.1.5.1
[INFO] [stderr]     Checking sled v0.34.7
[INFO] [stderr]     Checking disklru v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rmp_serde` is imported redundantly
[INFO] [stdout]  --> src/serial.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rmp_serde;
[INFO] [stdout]   |     ^^^^^^^^^ the item `rmp_serde` 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 `sled` is imported redundantly
[INFO] [stdout]  --> src/store.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sled;
[INFO] [stdout]   |     ^^^^ the item `sled` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rmp_serde` is imported redundantly
[INFO] [stdout]  --> src/serial.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rmp_serde;
[INFO] [stdout]   |     ^^^^^^^^^ the item `rmp_serde` 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 `sled` is imported redundantly
[INFO] [stdout]  --> src/store.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sled;
[INFO] [stdout]   |     ^^^^ the item `sled` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `HashMap` is imported redundantly
[INFO] [stdout]    --> src/store.rs:815:9
[INFO] [stdout]     |
[INFO] [stdout] 812 |     use super::*;
[INFO] [stdout]     |         -------- the item `HashMap` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 815 |     use std::collections::HashMap;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.19s
[INFO] running `Command { std: "docker" "inspect" "3ddfe5621d41ec870d0ee6a188f8b6dc657565e21f7424f34b42d532721d79d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ddfe5621d41ec870d0ee6a188f8b6dc657565e21f7424f34b42d532721d79d8", kill_on_drop: false }`
[INFO] [stdout] 3ddfe5621d41ec870d0ee6a188f8b6dc657565e21f7424f34b42d532721d79d8