[INFO] cloning repository https://github.com/natir/fpaf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/natir/fpaf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnatir%2Ffpaf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnatir%2Ffpaf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9df4889384f45ce27b63fa3303acf57d4c72cf71
[INFO] checking natir/fpaf against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnatir%2Ffpaf" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/natir/fpaf 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] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/natir/fpaf
[INFO] finished tweaking git repo https://github.com/natir/fpaf
[INFO] tweaked toml for git repo https://github.com/natir/fpaf written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/natir/fpaf 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pkg-config v0.3.20
[INFO] [stderr]   Downloaded fixedbitset v0.4.0
[INFO] [stderr]   Downloaded cc v1.0.71
[INFO] [stderr]   Downloaded xz2 v0.1.6
[INFO] [stderr]   Downloaded niffler v2.3.2
[INFO] [stderr]   Downloaded bgzip v0.2.1
[INFO] [stderr]   Downloaded lzma-sys v0.1.17
[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] 7720b9f6512a54bd6130f7ae7308c36dad8fdd0a1dd5397c3f4ab758332c31f9
[INFO] running `Command { std: "docker" "start" "-a" "7720b9f6512a54bd6130f7ae7308c36dad8fdd0a1dd5397c3f4ab758332c31f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7720b9f6512a54bd6130f7ae7308c36dad8fdd0a1dd5397c3f4ab758332c31f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7720b9f6512a54bd6130f7ae7308c36dad8fdd0a1dd5397c3f4ab758332c31f9", kill_on_drop: false }`
[INFO] [stdout] 7720b9f6512a54bd6130f7ae7308c36dad8fdd0a1dd5397c3f4ab758332c31f9
[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] 22f7b153efdbdf75d3a5964fbb4b68c82c84a32919f983a1611d78d9598d428c
[INFO] running `Command { std: "docker" "start" "-a" "22f7b153efdbdf75d3a5964fbb4b68c82c84a32919f983a1611d78d9598d428c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling pkg-config v0.3.20
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling lzma-sys v0.1.17
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking os_str_bytes v3.1.0
[INFO] [stderr]     Checking fixedbitset v0.4.0
[INFO] [stderr]     Checking petgraph v0.6.0
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.4
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking bgzip v0.2.1
[INFO] [stderr]     Checking niffler v2.3.2
[INFO] [stderr]     Checking clap v3.0.0-beta.4
[INFO] [stderr]     Checking fpa_lr v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::subcommand::*`
[INFO] [stdout]   --> src/cli/mod.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub use self::subcommand::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Clone` is imported redundantly
[INFO] [stdout]   --> src/io/gfa/gfa1.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::clone::Clone;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Clone` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::subcommand::*`
[INFO] [stdout]   --> src/cli/mod.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub use self::subcommand::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Clone` is imported redundantly
[INFO] [stdout]   --> src/io/gfa/gfa1.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::clone::Clone;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Clone` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.71s
[INFO] running `Command { std: "docker" "inspect" "22f7b153efdbdf75d3a5964fbb4b68c82c84a32919f983a1611d78d9598d428c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f7b153efdbdf75d3a5964fbb4b68c82c84a32919f983a1611d78d9598d428c", kill_on_drop: false }`
[INFO] [stdout] 22f7b153efdbdf75d3a5964fbb4b68c82c84a32919f983a1611d78d9598d428c
[INFO] checking natir/fpaf against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnatir%2Ffpaf" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/natir/fpaf 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] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/natir/fpaf
[INFO] finished tweaking git repo https://github.com/natir/fpaf
[INFO] tweaked toml for git repo https://github.com/natir/fpaf written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/natir/fpaf 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-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] 95e88fd5b9835f17d03edd5ed1e9025fc6566c484c6f2fa621beaee0040178a4
[INFO] running `Command { std: "docker" "start" "-a" "95e88fd5b9835f17d03edd5ed1e9025fc6566c484c6f2fa621beaee0040178a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95e88fd5b9835f17d03edd5ed1e9025fc6566c484c6f2fa621beaee0040178a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95e88fd5b9835f17d03edd5ed1e9025fc6566c484c6f2fa621beaee0040178a4", kill_on_drop: false }`
[INFO] [stdout] 95e88fd5b9835f17d03edd5ed1e9025fc6566c484c6f2fa621beaee0040178a4
[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] c60c9d3a462aedab1f4ed35ea00345aa0aeab8f9641a5b279060f34ea87eaaed
[INFO] running `Command { std: "docker" "start" "-a" "c60c9d3a462aedab1f4ed35ea00345aa0aeab8f9641a5b279060f34ea87eaaed", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling pkg-config v0.3.20
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking fixedbitset v0.4.0
[INFO] [stderr]    Compiling lzma-sys v0.1.17
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking os_str_bytes v3.1.0
[INFO] [stderr]     Checking petgraph v0.6.0
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.4
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking bgzip v0.2.1
[INFO] [stderr]     Checking niffler v2.3.2
[INFO] [stderr]     Checking clap v3.0.0-beta.4
[INFO] [stderr]     Checking fpa_lr v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::subcommand::*`
[INFO] [stdout]   --> src/cli/mod.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub use self::subcommand::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::subcommand::*`
[INFO] [stdout]   --> src/cli/mod.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub use self::subcommand::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Clone` is imported redundantly
[INFO] [stdout]   --> src/io/gfa/gfa1.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::clone::Clone;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Clone` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Clone` is imported redundantly
[INFO] [stdout]   --> src/io/gfa/gfa1.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::clone::Clone;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Clone` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.37s
[INFO] running `Command { std: "docker" "inspect" "c60c9d3a462aedab1f4ed35ea00345aa0aeab8f9641a5b279060f34ea87eaaed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c60c9d3a462aedab1f4ed35ea00345aa0aeab8f9641a5b279060f34ea87eaaed", kill_on_drop: false }`
[INFO] [stdout] c60c9d3a462aedab1f4ed35ea00345aa0aeab8f9641a5b279060f34ea87eaaed