[INFO] cloning repository https://github.com/aki-akaguma/aki-mline
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aki-akaguma/aki-mline" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faki-akaguma%2Faki-mline", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faki-akaguma%2Faki-mline'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 972bd3cd476ac11bf05881d97fd328466c9b7475
[INFO] checking aki-akaguma/aki-mline against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faki-akaguma%2Faki-mline" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aki-akaguma/aki-mline 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-0-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/aki-akaguma/aki-mline
[INFO] finished tweaking git repo https://github.com/aki-akaguma/aki-mline
[INFO] tweaked toml for git repo https://github.com/aki-akaguma/aki-mline written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/aki-akaguma/aki-mline 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 semver v1.0.16
[INFO] [stderr]   Downloaded runnel v0.3.16
[INFO] [stderr]   Downloaded flood-tide v0.2.9
[INFO] [stderr]   Downloaded memx-cdy v0.1.11
[INFO] [stderr]   Downloaded case v1.0.0
[INFO] [stderr]   Downloaded exec-target v0.2.8
[INFO] [stderr]   Downloaded memx v0.1.25
[INFO] [stderr]   Downloaded naive_opt v0.1.22
[INFO] [stderr]   Downloaded rust-version-info-file v0.1.8
[INFO] [stderr]   Downloaded flood-tide-gen v0.1.20
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68cfc0b5d21b8fbb144a80fdac5efe4e056eb069864d719dd3a25626240243b8
[INFO] running `Command { std: "docker" "start" "-a" "68cfc0b5d21b8fbb144a80fdac5efe4e056eb069864d719dd3a25626240243b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68cfc0b5d21b8fbb144a80fdac5efe4e056eb069864d719dd3a25626240243b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68cfc0b5d21b8fbb144a80fdac5efe4e056eb069864d719dd3a25626240243b8", kill_on_drop: false }`
[INFO] [stdout] 68cfc0b5d21b8fbb144a80fdac5efe4e056eb069864d719dd3a25626240243b8
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d73c09f047c85a884d8033ffeaba2a905822f4c32b517496bc2d40f9bdbc202
[INFO] running `Command { std: "docker" "start" "-a" "1d73c09f047c85a884d8033ffeaba2a905822f4c32b517496bc2d40f9bdbc202", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling rust-version-info-file v0.1.8
[INFO] [stderr]     Checking flood-tide v0.2.9
[INFO] [stderr]     Checking exec-target v0.2.8
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]     Checking case v1.0.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling memx v0.1.25
[INFO] [stderr]    Compiling runnel v0.3.16
[INFO] [stderr]    Compiling aki-mline v0.1.31 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking naive_opt v0.1.22
[INFO] [stderr]     Checking memx-cdy v0.1.11
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking flood-tide-gen v0.1.20
[INFO] [stdout] warning: unused import: `self::opt_uc_x_param::OptUcXParamParseError`
[INFO] [stdout]  --> src/util/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::opt_uc_x_param::OptUcXParamParseError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::opt_color_when::OptColorWhenParseError`
[INFO] [stdout]  --> src/util/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use self::opt_color_when::OptColorWhenParseError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::opt_around_num::OptAroundNumParseError`
[INFO] [stdout]   --> src/util/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use self::opt_around_num::OptAroundNumParseError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::opt_uc_x_param::OptUcXParamParseError`
[INFO] [stdout]  --> src/util/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::opt_uc_x_param::OptUcXParamParseError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::opt_color_when::OptColorWhenParseError`
[INFO] [stdout]  --> src/util/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use self::opt_color_when::OptColorWhenParseError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::opt_around_num::OptAroundNumParseError`
[INFO] [stdout]   --> src/util/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use self::opt_around_num::OptAroundNumParseError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking xtask v0.1.0 (/opt/rustwide/workdir/xtask)
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.90s
[INFO] running `Command { std: "docker" "inspect" "1d73c09f047c85a884d8033ffeaba2a905822f4c32b517496bc2d40f9bdbc202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d73c09f047c85a884d8033ffeaba2a905822f4c32b517496bc2d40f9bdbc202", kill_on_drop: false }`
[INFO] [stdout] 1d73c09f047c85a884d8033ffeaba2a905822f4c32b517496bc2d40f9bdbc202
[INFO] checking aki-akaguma/aki-mline against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faki-akaguma%2Faki-mline" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aki-akaguma/aki-mline 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-0-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/aki-akaguma/aki-mline
[INFO] finished tweaking git repo https://github.com/aki-akaguma/aki-mline
[INFO] tweaked toml for git repo https://github.com/aki-akaguma/aki-mline written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/aki-akaguma/aki-mline 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 49e3cc7248ac6cac28d3f6c047838a545eb8b23f359d2c3e2a3989587c2dc6f8
[INFO] running `Command { std: "docker" "start" "-a" "49e3cc7248ac6cac28d3f6c047838a545eb8b23f359d2c3e2a3989587c2dc6f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49e3cc7248ac6cac28d3f6c047838a545eb8b23f359d2c3e2a3989587c2dc6f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49e3cc7248ac6cac28d3f6c047838a545eb8b23f359d2c3e2a3989587c2dc6f8", kill_on_drop: false }`
[INFO] [stdout] 49e3cc7248ac6cac28d3f6c047838a545eb8b23f359d2c3e2a3989587c2dc6f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] cff91ced39b83fbac6344e9b548cb1b9cc19a67a7b068440557f1e294638b1d3
[INFO] running `Command { std: "docker" "start" "-a" "cff91ced39b83fbac6344e9b548cb1b9cc19a67a7b068440557f1e294638b1d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling rust-version-info-file v0.1.8
[INFO] [stderr]     Checking flood-tide v0.2.9
[INFO] [stderr]     Checking exec-target v0.2.8
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]     Checking case v1.0.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling memx v0.1.25
[INFO] [stderr]    Compiling runnel v0.3.16
[INFO] [stderr]    Compiling aki-mline v0.1.31 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking naive_opt v0.1.22
[INFO] [stderr]     Checking memx-cdy v0.1.11
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking flood-tide-gen v0.1.20
[INFO] [stdout] warning: unused import: `self::opt_uc_x_param::OptUcXParamParseError`
[INFO] [stdout]  --> src/util/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::opt_uc_x_param::OptUcXParamParseError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::opt_color_when::OptColorWhenParseError`
[INFO] [stdout]  --> src/util/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use self::opt_color_when::OptColorWhenParseError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::opt_around_num::OptAroundNumParseError`
[INFO] [stdout]   --> src/util/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use self::opt_around_num::OptAroundNumParseError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::opt_uc_x_param::OptUcXParamParseError`
[INFO] [stdout]  --> src/util/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::opt_uc_x_param::OptUcXParamParseError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::opt_color_when::OptColorWhenParseError`
[INFO] [stdout]  --> src/util/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use self::opt_color_when::OptColorWhenParseError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::opt_around_num::OptAroundNumParseError`
[INFO] [stdout]   --> src/util/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use self::opt_around_num::OptAroundNumParseError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking xtask v0.1.0 (/opt/rustwide/workdir/xtask)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "cff91ced39b83fbac6344e9b548cb1b9cc19a67a7b068440557f1e294638b1d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cff91ced39b83fbac6344e9b548cb1b9cc19a67a7b068440557f1e294638b1d3", kill_on_drop: false }`
[INFO] [stdout] cff91ced39b83fbac6344e9b548cb1b9cc19a67a7b068440557f1e294638b1d3