[INFO] cloning repository https://github.com/SanchithHegde/png-message-encode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SanchithHegde/png-message-encode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSanchithHegde%2Fpng-message-encode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSanchithHegde%2Fpng-message-encode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 751f13968a55fed25d1d7d65818276d13087f435
[INFO] checking SanchithHegde/png-message-encode against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSanchithHegde%2Fpng-message-encode" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SanchithHegde/png-message-encode 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 git repo https://github.com/SanchithHegde/png-message-encode
[INFO] finished tweaking git repo https://github.com/SanchithHegde/png-message-encode
[INFO] tweaked toml for git repo https://github.com/SanchithHegde/png-message-encode written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SanchithHegde/png-message-encode 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 crc-catalog v2.1.0
[INFO] [stderr]   Downloaded clap_derive v3.2.6
[INFO] [stderr]   Downloaded clap v3.2.6
[INFO] [stderr]   Downloaded crc v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a60dea34fc023b2921a0c8423816a2f908f6e038ece0278426bf58320c228438
[INFO] running `Command { std: "docker" "start" "-a" "a60dea34fc023b2921a0c8423816a2f908f6e038ece0278426bf58320c228438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a60dea34fc023b2921a0c8423816a2f908f6e038ece0278426bf58320c228438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a60dea34fc023b2921a0c8423816a2f908f6e038ece0278426bf58320c228438", kill_on_drop: false }`
[INFO] [stdout] a60dea34fc023b2921a0c8423816a2f908f6e038ece0278426bf58320c228438
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e0c9328ee8ad6cd73526d586b10b77925acdf4955178bcadeb486a67165217e5
[INFO] running `Command { std: "docker" "start" "-a" "e0c9328ee8ad6cd73526d586b10b77925acdf4955178bcadeb486a67165217e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking crc-catalog v2.1.0
[INFO] [stderr]     Checking crc v3.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling clap_derive v3.2.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking clap v3.2.6
[INFO] [stderr]     Checking png-message-encode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/chunk_type.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |     use std::convert::TryFrom;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `TryFrom` is already defined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Chunk` is imported redundantly
[INFO] [stdout]    --> src/png.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     use super::*;
[INFO] [stdout]     |         -------- the item `Chunk` is already imported here
[INFO] [stdout] 110 |     use crate::chunk::Chunk;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ChunkType` is imported redundantly
[INFO] [stdout]    --> src/png.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     use super::*;
[INFO] [stdout]     |         -------- the item `ChunkType` is already imported here
[INFO] [stdout] 110 |     use crate::chunk::Chunk;
[INFO] [stdout] 111 |     use crate::chunk_type::ChunkType;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]    --> src/png.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |     use std::convert::TryFrom;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.10s
[INFO] running `Command { std: "docker" "inspect" "e0c9328ee8ad6cd73526d586b10b77925acdf4955178bcadeb486a67165217e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0c9328ee8ad6cd73526d586b10b77925acdf4955178bcadeb486a67165217e5", kill_on_drop: false }`
[INFO] [stdout] e0c9328ee8ad6cd73526d586b10b77925acdf4955178bcadeb486a67165217e5