[INFO] fetching crate pallas-chainsync 0.4.0...
[INFO] checking pallas-chainsync-0.4.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate pallas-chainsync 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate pallas-chainsync 0.4.0 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 pallas-chainsync 0.4.0
[INFO] finished tweaking crates.io crate pallas-chainsync 0.4.0
[INFO] tweaked toml for crates.io crate pallas-chainsync 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate pallas-chainsync 0.4.0 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 pallas-handshake v0.4.0
[INFO] [stderr]   Downloaded pallas-machines v0.4.0
[INFO] [stderr]   Downloaded pallas-crypto v0.4.0
[INFO] [stderr]   Downloaded pallas-alonzo v0.4.0
[INFO] [stderr]   Downloaded minicbor-derive v0.8.0
[INFO] [stderr]   Downloaded minicbor v0.13.0
[INFO] [stderr]   Downloaded pallas-multiplexer v0.4.0
[INFO] [stderr]   Downloaded cryptoxide v0.4.2
[INFO] [stderr]   Downloaded libc v0.2.116
[INFO] [stderr]   Downloaded pallas-txsubmission v0.4.0
[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] a85a50dedaa4a68aafc1ca90219cdc2671f439fb1af0cc4b5afc590a63875ab5
[INFO] running `Command { std: "docker" "start" "-a" "a85a50dedaa4a68aafc1ca90219cdc2671f439fb1af0cc4b5afc590a63875ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a85a50dedaa4a68aafc1ca90219cdc2671f439fb1af0cc4b5afc590a63875ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a85a50dedaa4a68aafc1ca90219cdc2671f439fb1af0cc4b5afc590a63875ab5", kill_on_drop: false }`
[INFO] [stdout] a85a50dedaa4a68aafc1ca90219cdc2671f439fb1af0cc4b5afc590a63875ab5
[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] 5e84b7731cdcb64bca4e7aa26ea04b181d12b4caba94499ab993eac0c41744e0
[INFO] running `Command { std: "docker" "start" "-a" "5e84b7731cdcb64bca4e7aa26ea04b181d12b4caba94499ab993eac0c41744e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling minicbor v0.13.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.116
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking cryptoxide v0.4.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking pallas-multiplexer v0.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking pallas-machines v0.4.0
[INFO] [stderr]     Checking pallas-handshake v0.4.0
[INFO] [stderr]     Checking pallas-txsubmission v0.4.0
[INFO] [stderr]     Checking pallas-chainsync v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stdout] warning: unused import: `codec::*`
[INFO] [stdout]  --> src/lib.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use codec::*;
[INFO] [stdout]   |         ^^^^^^^^
[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]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling minicbor-derive v0.8.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking pallas-crypto v0.4.0
[INFO] [stderr]     Checking pallas-alonzo v0.4.0
[INFO] [stdout] warning: unused import: `codec::*`
[INFO] [stdout]  --> src/lib.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use codec::*;
[INFO] [stdout]   |         ^^^^^^^^
[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 6.46s
[INFO] running `Command { std: "docker" "inspect" "5e84b7731cdcb64bca4e7aa26ea04b181d12b4caba94499ab993eac0c41744e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e84b7731cdcb64bca4e7aa26ea04b181d12b4caba94499ab993eac0c41744e0", kill_on_drop: false }`
[INFO] [stdout] 5e84b7731cdcb64bca4e7aa26ea04b181d12b4caba94499ab993eac0c41744e0
[INFO] checking pallas-chainsync-0.4.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate pallas-chainsync 0.4.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate pallas-chainsync 0.4.0 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 pallas-chainsync 0.4.0
[INFO] finished tweaking crates.io crate pallas-chainsync 0.4.0
[INFO] tweaked toml for crates.io crate pallas-chainsync 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate pallas-chainsync 0.4.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 9e2e4926c8a9b7b2bf43fc299d31f3818d85e46cf7a6876a5734f2ed13997a49
[INFO] running `Command { std: "docker" "start" "-a" "9e2e4926c8a9b7b2bf43fc299d31f3818d85e46cf7a6876a5734f2ed13997a49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e2e4926c8a9b7b2bf43fc299d31f3818d85e46cf7a6876a5734f2ed13997a49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e2e4926c8a9b7b2bf43fc299d31f3818d85e46cf7a6876a5734f2ed13997a49", kill_on_drop: false }`
[INFO] [stdout] 9e2e4926c8a9b7b2bf43fc299d31f3818d85e46cf7a6876a5734f2ed13997a49
[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] 6977e8553e4a4025a38a00af6a7997f8796cebaac8eec8cfe00a731872b328bc
[INFO] running `Command { std: "docker" "start" "-a" "6977e8553e4a4025a38a00af6a7997f8796cebaac8eec8cfe00a731872b328bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling minicbor v0.13.0
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling libc v0.2.116
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking cryptoxide v0.4.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking pallas-multiplexer v0.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking pallas-machines v0.4.0
[INFO] [stderr]     Checking pallas-chainsync v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking pallas-handshake v0.4.0
[INFO] [stderr]     Checking pallas-txsubmission v0.4.0
[INFO] [stdout] warning: unused import: `codec::*`
[INFO] [stdout]  --> src/lib.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use codec::*;
[INFO] [stdout]   |         ^^^^^^^^
[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]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling minicbor-derive v0.8.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking pallas-crypto v0.4.0
[INFO] [stderr]     Checking pallas-alonzo v0.4.0
[INFO] [stdout] warning: unused import: `codec::*`
[INFO] [stdout]  --> src/lib.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use codec::*;
[INFO] [stdout]   |         ^^^^^^^^
[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 8.59s
[INFO] running `Command { std: "docker" "inspect" "6977e8553e4a4025a38a00af6a7997f8796cebaac8eec8cfe00a731872b328bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6977e8553e4a4025a38a00af6a7997f8796cebaac8eec8cfe00a731872b328bc", kill_on_drop: false }`
[INFO] [stdout] 6977e8553e4a4025a38a00af6a7997f8796cebaac8eec8cfe00a731872b328bc