[INFO] fetching crate twelf 0.4.0...
[INFO] checking twelf-0.4.0 against try#3f7b27fe41ccd116a4c0829bd9a14b65bada4578 for pr-96970
[INFO] extracting crate twelf 0.4.0 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate twelf 0.4.0 on toolchain 3f7b27fe41ccd116a4c0829bd9a14b65bada4578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twelf 0.4.0
[INFO] finished tweaking crates.io crate twelf 0.4.0
[INFO] tweaked toml for crates.io crate twelf 0.4.0 written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate crates.io crate twelf 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "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-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86ce235c2222198e43671d4a0f8b269a1818e5554833dee72b19116aed65b7b3
[INFO] running `Command { std: "docker" "start" "-a" "86ce235c2222198e43671d4a0f8b269a1818e5554833dee72b19116aed65b7b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86ce235c2222198e43671d4a0f8b269a1818e5554833dee72b19116aed65b7b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86ce235c2222198e43671d4a0f8b269a1818e5554833dee72b19116aed65b7b3", kill_on_drop: false }`
[INFO] [stdout] 86ce235c2222198e43671d4a0f8b269a1818e5554833dee72b19116aed65b7b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 695fe412d1f34ab79c279add191909449a2ea312d6ab8fecd421c1d7a657eb2a
[INFO] running `Command { std: "docker" "start" "-a" "695fe412d1f34ab79c279add191909449a2ea312d6ab8fecd421c1d7a657eb2a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
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[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling memchr v2.4.1
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[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling futures-util v0.3.21
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[INFO] [stderr]    Compiling ryu v1.0.9
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[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking fnv v1.0.7
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[INFO] [stderr]     Checking slab v0.4.6
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[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling typed-arena v1.7.0
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[INFO] [stderr]     Checking openssl-probe v0.1.5
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[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking unicode-bidi v0.3.7
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[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking hex v0.4.3
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[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking strsim v0.10.0
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[INFO] [stderr]     Checking result v1.0.0
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[INFO] [stderr]    Compiling pretty v0.5.2
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[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking elsa v1.7.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
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[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]     Checking clap_lex v0.1.1
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[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling pest_meta v2.1.3
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[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking tokio v1.17.0
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[INFO] [stderr]    Compiling abnf v0.6.1
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[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
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[INFO] [stderr]    Compiling pest_consume_macros v1.1.0
[INFO] [stderr]    Compiling dhall v0.11.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling dhall_proc_macros v0.6.0
[INFO] [stderr]    Compiling config-derive v0.4.0
[INFO] [stderr]     Checking pest_consume v1.1.1
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking clap v3.1.9
[INFO] [stderr]     Checking tokio-util v0.7.1
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[INFO] [stderr]     Checking serde_cbor v0.11.2
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[INFO] [stderr]     Checking reqwest v0.11.10
[INFO] [stderr]     Checking serde_dhall v0.11.0
[INFO] [stderr]     Checking twelf v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Subcommand`
[INFO] [stdout]  --> examples/clap_derive.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use clap::{Parser, Subcommand, CommandFactory};
[INFO] [stdout]   |                    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `Command { std: "docker" "inspect" "695fe412d1f34ab79c279add191909449a2ea312d6ab8fecd421c1d7a657eb2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "695fe412d1f34ab79c279add191909449a2ea312d6ab8fecd421c1d7a657eb2a", kill_on_drop: false }`
[INFO] [stdout] 695fe412d1f34ab79c279add191909449a2ea312d6ab8fecd421c1d7a657eb2a