[INFO] fetching crate schemes 0.0.1-BETA...
[INFO] checking schemes-0.0.1-BETA against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate schemes 0.0.1-BETA into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate schemes 0.0.1-BETA 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 schemes 0.0.1-BETA
[INFO] finished tweaking crates.io crate schemes 0.0.1-BETA
[INFO] tweaked toml for crates.io crate schemes 0.0.1-BETA written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate schemes 0.0.1-BETA 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 bit-set v0.5.2
[INFO] [stderr]   Downloaded proptest v1.0.0
[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] dfedb9fe57201e4e91cc021fc8d2a09bc7cc1c66c3a55358bf5da78d94f50e24
[INFO] running `Command { std: "docker" "start" "-a" "dfedb9fe57201e4e91cc021fc8d2a09bc7cc1c66c3a55358bf5da78d94f50e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfedb9fe57201e4e91cc021fc8d2a09bc7cc1c66c3a55358bf5da78d94f50e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfedb9fe57201e4e91cc021fc8d2a09bc7cc1c66c3a55358bf5da78d94f50e24", kill_on_drop: false }`
[INFO] [stdout] dfedb9fe57201e4e91cc021fc8d2a09bc7cc1c66c3a55358bf5da78d94f50e24
[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] c78261509f3990440ee0654cc39a6be80e2e43c8646fc93f0a9183dfa72be93d
[INFO] running `Command { std: "docker" "start" "-a" "c78261509f3990440ee0654cc39a6be80e2e43c8646fc93f0a9183dfa72be93d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking proptest v1.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling clap_derive v3.2.7
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking clap v3.2.8
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking schemes v0.0.1-BETA (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `DBKey` is imported redundantly
[INFO] [stdout]  --> src/examples/expr/naive.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::examples::expr::db::DBKey;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 2 | use crate::examples::expr::*;
[INFO] [stdout]   |     ------------------------ the item `DBKey` is already imported here
[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` profile [unoptimized + debuginfo] target(s) in 28.44s
[INFO] running `Command { std: "docker" "inspect" "c78261509f3990440ee0654cc39a6be80e2e43c8646fc93f0a9183dfa72be93d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c78261509f3990440ee0654cc39a6be80e2e43c8646fc93f0a9183dfa72be93d", kill_on_drop: false }`
[INFO] [stdout] c78261509f3990440ee0654cc39a6be80e2e43c8646fc93f0a9183dfa72be93d
[INFO] checking schemes-0.0.1-BETA against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate schemes 0.0.1-BETA into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate schemes 0.0.1-BETA 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 schemes 0.0.1-BETA
[INFO] finished tweaking crates.io crate schemes 0.0.1-BETA
[INFO] tweaked toml for crates.io crate schemes 0.0.1-BETA written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate schemes 0.0.1-BETA 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] fdf1d3055459bbcc38082735a526d783b0c41da0b206e203b87655294b016239
[INFO] running `Command { std: "docker" "start" "-a" "fdf1d3055459bbcc38082735a526d783b0c41da0b206e203b87655294b016239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdf1d3055459bbcc38082735a526d783b0c41da0b206e203b87655294b016239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdf1d3055459bbcc38082735a526d783b0c41da0b206e203b87655294b016239", kill_on_drop: false }`
[INFO] [stdout] fdf1d3055459bbcc38082735a526d783b0c41da0b206e203b87655294b016239
[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] e726a34a1153ac2beb38ef1c0b9df22685181c2d3f3a0bbf0cc5941b3953eefa
[INFO] running `Command { std: "docker" "start" "-a" "e726a34a1153ac2beb38ef1c0b9df22685181c2d3f3a0bbf0cc5941b3953eefa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking proptest v1.0.0
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling clap_derive v3.2.7
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking clap v3.2.8
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking schemes v0.0.1-BETA (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `DBKey` is imported redundantly
[INFO] [stdout]  --> src/examples/expr/naive.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::examples::expr::db::DBKey;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 2 | use crate::examples::expr::*;
[INFO] [stdout]   |     ------------------------ the item `DBKey` is already imported here
[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` profile [unoptimized + debuginfo] target(s) in 26.46s
[INFO] running `Command { std: "docker" "inspect" "e726a34a1153ac2beb38ef1c0b9df22685181c2d3f3a0bbf0cc5941b3953eefa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e726a34a1153ac2beb38ef1c0b9df22685181c2d3f3a0bbf0cc5941b3953eefa", kill_on_drop: false }`
[INFO] [stdout] e726a34a1153ac2beb38ef1c0b9df22685181c2d3f3a0bbf0cc5941b3953eefa