[INFO] fetching crate smt2parser 0.6.1...
[INFO] checking smt2parser-0.6.1 against master#accc516128b21e960b1a7af45393e9acdd184890 for pr-122501
[INFO] extracting crate smt2parser 0.6.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate smt2parser 0.6.1 on toolchain accc516128b21e960b1a7af45393e9acdd184890
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+accc516128b21e960b1a7af45393e9acdd184890" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smt2parser 0.6.1
[INFO] finished tweaking crates.io crate smt2parser 0.6.1
[INFO] tweaked toml for crates.io crate smt2parser 0.6.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate smt2parser 0.6.1 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" "+accc516128b21e960b1a7af45393e9acdd184890" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded permutation_iterator v0.1.2
[INFO] [stderr]   Downloaded thiserror-impl v1.0.29
[INFO] [stderr]   Downloaded thiserror v1.0.29
[INFO] [stderr]   Downloaded pomelo-impl v0.1.5
[INFO] [stderr]   Downloaded pomelo v0.1.5
[INFO] [stderr]   Downloaded syn v1.0.76
[INFO] [stderr]   Downloaded fst v0.4.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+accc516128b21e960b1a7af45393e9acdd184890" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6b66c3934e85a633f6635d941bc35f1b1c9a3f349ec4e0c89fde60391e54fb0
[INFO] running `Command { std: "docker" "start" "-a" "f6b66c3934e85a633f6635d941bc35f1b1c9a3f349ec4e0c89fde60391e54fb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6b66c3934e85a633f6635d941bc35f1b1c9a3f349ec4e0c89fde60391e54fb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6b66c3934e85a633f6635d941bc35f1b1c9a3f349ec4e0c89fde60391e54fb0", kill_on_drop: false }`
[INFO] [stdout] f6b66c3934e85a633f6635d941bc35f1b1c9a3f349ec4e0c89fde60391e54fb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+accc516128b21e960b1a7af45393e9acdd184890" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab7c1272649d7b889f3a22715b6ff896cb6f84d6f1cf3a7a9e286c8d5ed004e2
[INFO] running `Command { std: "docker" "start" "-a" "ab7c1272649d7b889f3a22715b6ff896cb6f84d6f1cf3a7a9e286c8d5ed004e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling fst v0.4.7
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking permutation_iterator v0.1.2
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling pomelo-impl v0.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking pomelo v0.1.5
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking smt2parser v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Identifier` is imported redundantly
[INFO] [stdout]  --> src/renaming.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 7 |     concrete::*,
[INFO] [stdout]   |     ----------- the item `Identifier` is already imported here
[INFO] [stdout] 8 |     rewriter::Rewriter,
[INFO] [stdout] 9 |     visitors::{Identifier, Index, Smt2Visitor, SymbolKind},
[INFO] [stdout]   |                ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Identifier` is imported redundantly
[INFO] [stdout]  --> src/renaming.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 7 |     concrete::*,
[INFO] [stdout]   |     ----------- the item `Identifier` is already imported here
[INFO] [stdout] 8 |     rewriter::Rewriter,
[INFO] [stdout] 9 |     visitors::{Identifier, Index, Smt2Visitor, SymbolKind},
[INFO] [stdout]   |                ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "ab7c1272649d7b889f3a22715b6ff896cb6f84d6f1cf3a7a9e286c8d5ed004e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab7c1272649d7b889f3a22715b6ff896cb6f84d6f1cf3a7a9e286c8d5ed004e2", kill_on_drop: false }`
[INFO] [stdout] ab7c1272649d7b889f3a22715b6ff896cb6f84d6f1cf3a7a9e286c8d5ed004e2