[INFO] fetching crate hline 0.2.1...
[INFO] checking hline-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate hline 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate hline 0.2.1 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 hline 0.2.1
[INFO] finished tweaking crates.io crate hline 0.2.1
[INFO] tweaked toml for crates.io crate hline 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate hline 0.2.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded grep v0.2.8
[INFO] [stderr]   Downloaded test-case v1.2.1
[INFO] [stderr]   Downloaded grep-searcher v0.1.8
[INFO] [stderr]   Downloaded grep-regex v0.1.9
[INFO] [stderr]   Downloaded grep-matcher v0.1.5
[INFO] [stderr]   Downloaded thread_local v1.1.3
[INFO] [stderr]   Downloaded memmap2 v0.3.1
[INFO] [stderr]   Downloaded grep-printer v0.1.6
[INFO] [stderr]   Downloaded libc v0.2.106
[INFO] [stderr]   Downloaded encoding_rs v0.8.29
[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] 8092cdee7031d80d38837be4b129478ef56df053dad51310eafdbe428b8612c6
[INFO] running `Command { std: "docker" "start" "-a" "8092cdee7031d80d38837be4b129478ef56df053dad51310eafdbe428b8612c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8092cdee7031d80d38837be4b129478ef56df053dad51310eafdbe428b8612c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8092cdee7031d80d38837be4b129478ef56df053dad51310eafdbe428b8612c6", kill_on_drop: false }`
[INFO] [stdout] 8092cdee7031d80d38837be4b129478ef56df053dad51310eafdbe428b8612c6
[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] 8750fa8c7d2503caa316ecc0c1f06e84748ef310d8e9ae6ce07d5ecb4640b08a
[INFO] running `Command { std: "docker" "start" "-a" "8750fa8c7d2503caa316ecc0c1f06e84748ef310d8e9ae6ce07d5ecb4640b08a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling encoding_rs v0.8.29
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking grep-matcher v0.1.5
[INFO] [stderr]    Compiling test-case v1.2.1
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking encoding_rs_io v0.1.7
[INFO] [stderr]     Checking grep-searcher v0.1.8
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking grep-regex v0.1.9
[INFO] [stderr]     Checking grep-cli v0.1.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking grep-printer v0.1.6
[INFO] [stderr]     Checking grep v0.2.8
[INFO] [stderr]     Checking hline v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]    --> src/file/recorder.rs:169:27
[INFO] [stdout]     |
[INFO] [stdout] 168 |     use super::*;
[INFO] [stdout]     |         -------- the item `Error` is already imported here
[INFO] [stdout] 169 |     use std::io::{Cursor, Error};
[INFO] [stdout]     |                           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `testutil` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     use super::*;
[INFO] [stdout]    |         -------- the item `testutil` is already imported here
[INFO] [stdout] 99 |     use crate::testutil;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.83s
[INFO] running `Command { std: "docker" "inspect" "8750fa8c7d2503caa316ecc0c1f06e84748ef310d8e9ae6ce07d5ecb4640b08a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8750fa8c7d2503caa316ecc0c1f06e84748ef310d8e9ae6ce07d5ecb4640b08a", kill_on_drop: false }`
[INFO] [stdout] 8750fa8c7d2503caa316ecc0c1f06e84748ef310d8e9ae6ce07d5ecb4640b08a
[INFO] checking hline-0.2.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate hline 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate hline 0.2.1 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 hline 0.2.1
[INFO] finished tweaking crates.io crate hline 0.2.1
[INFO] tweaked toml for crates.io crate hline 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate hline 0.2.1 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" "+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] 398ac242d9f0813bb5a8448ba6f9afd24d03442e8a83d0d1751457c54b994a98
[INFO] running `Command { std: "docker" "start" "-a" "398ac242d9f0813bb5a8448ba6f9afd24d03442e8a83d0d1751457c54b994a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "398ac242d9f0813bb5a8448ba6f9afd24d03442e8a83d0d1751457c54b994a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "398ac242d9f0813bb5a8448ba6f9afd24d03442e8a83d0d1751457c54b994a98", kill_on_drop: false }`
[INFO] [stdout] 398ac242d9f0813bb5a8448ba6f9afd24d03442e8a83d0d1751457c54b994a98
[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] 62b5488cec69f4bb51f3f639f1df3aebe03f0050fa4786f1ea0a049cf6f9d73e
[INFO] running `Command { std: "docker" "start" "-a" "62b5488cec69f4bb51f3f639f1df3aebe03f0050fa4786f1ea0a049cf6f9d73e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling encoding_rs v0.8.29
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking grep-matcher v0.1.5
[INFO] [stderr]    Compiling test-case v1.2.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking encoding_rs_io v0.1.7
[INFO] [stderr]     Checking grep-searcher v0.1.8
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking grep-regex v0.1.9
[INFO] [stderr]     Checking grep-cli v0.1.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking grep-printer v0.1.6
[INFO] [stderr]     Checking grep v0.2.8
[INFO] [stderr]     Checking hline v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]    --> src/file/recorder.rs:169:27
[INFO] [stdout]     |
[INFO] [stdout] 168 |     use super::*;
[INFO] [stdout]     |         -------- the item `Error` is already imported here
[INFO] [stdout] 169 |     use std::io::{Cursor, Error};
[INFO] [stdout]     |                           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `testutil` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     use super::*;
[INFO] [stdout]    |         -------- the item `testutil` is already imported here
[INFO] [stdout] 99 |     use crate::testutil;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.45s
[INFO] running `Command { std: "docker" "inspect" "62b5488cec69f4bb51f3f639f1df3aebe03f0050fa4786f1ea0a049cf6f9d73e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62b5488cec69f4bb51f3f639f1df3aebe03f0050fa4786f1ea0a049cf6f9d73e", kill_on_drop: false }`
[INFO] [stdout] 62b5488cec69f4bb51f3f639f1df3aebe03f0050fa4786f1ea0a049cf6f9d73e