[INFO] cloning repository https://github.com/pexip/os-rust-env-logger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pexip/os-rust-env-logger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpexip%2Fos-rust-env-logger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpexip%2Fos-rust-env-logger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4aba5a97f6c95ed1668b8061a45995072e5290e9
[INFO] checking pexip/os-rust-env-logger against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpexip%2Fos-rust-env-logger" "/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/pexip/os-rust-env-logger 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/pexip/os-rust-env-logger
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/pexip/os-rust-env-logger
[INFO] tweaked toml for git repo https://github.com/pexip/os-rust-env-logger written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pexip/os-rust-env-logger 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] 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] aa83aa82efb085de5eeae4aa47c919e606609f71ce958c1523f83610feb16dd5
[INFO] running `Command { std: "docker" "start" "-a" "aa83aa82efb085de5eeae4aa47c919e606609f71ce958c1523f83610feb16dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa83aa82efb085de5eeae4aa47c919e606609f71ce958c1523f83610feb16dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa83aa82efb085de5eeae4aa47c919e606609f71ce958c1523f83610feb16dd5", kill_on_drop: false }`
[INFO] [stdout] aa83aa82efb085de5eeae4aa47c919e606609f71ce958c1523f83610feb16dd5
[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] 43d11d3c020eda66d808da058ac5a52f6420703db0dc22be33a9056499a95cfe
[INFO] running `Command { std: "docker" "start" "-a" "43d11d3c020eda66d808da058ac5a52f6420703db0dc22be33a9056499a95cfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking regex v1.7.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `termcolor` is imported redundantly
[INFO] [stdout]  --> src/fmt/writer/termcolor/extern_impl.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | use termcolor::{self, ColorChoice, ColorSpec, WriteColor};
[INFO] [stdout]   |                 ^^^^ the item `termcolor` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Buffer` is imported redundantly
[INFO] [stdout]   --> src/fmt/mod.rs:46:20
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub use self::writer::glob::*;
[INFO] [stdout]    |         --------------------- the item `Buffer` is already imported here
[INFO] [stdout] 45 |
[INFO] [stdout] 46 | use self::writer::{Buffer, Writer};
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Writer` is imported redundantly
[INFO] [stdout]   --> src/fmt/mod.rs:46:28
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub use self::writer::glob::*;
[INFO] [stdout]    |         --------------------- the item `Writer` is already imported here
[INFO] [stdout] 45 |
[INFO] [stdout] 46 | use self::writer::{Buffer, Writer};
[INFO] [stdout]    |                            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Record` is imported redundantly
[INFO] [stdout]    --> src/fmt/mod.rs:398:22
[INFO] [stdout]     |
[INFO] [stdout] 396 |     use super::*;
[INFO] [stdout]     |         -------- the item `Record` is already imported here
[INFO] [stdout] 397 |
[INFO] [stdout] 398 |     use log::{Level, Record};
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `termcolor` is imported redundantly
[INFO] [stdout]  --> src/fmt/writer/termcolor/extern_impl.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | use termcolor::{self, ColorChoice, ColorSpec, WriteColor};
[INFO] [stdout]   |                 ^^^^ the item `termcolor` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Buffer` is imported redundantly
[INFO] [stdout]   --> src/fmt/mod.rs:46:20
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub use self::writer::glob::*;
[INFO] [stdout]    |         --------------------- the item `Buffer` is already imported here
[INFO] [stdout] 45 |
[INFO] [stdout] 46 | use self::writer::{Buffer, Writer};
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Writer` is imported redundantly
[INFO] [stdout]   --> src/fmt/mod.rs:46:28
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub use self::writer::glob::*;
[INFO] [stdout]    |         --------------------- the item `Writer` is already imported here
[INFO] [stdout] 45 |
[INFO] [stdout] 46 | use self::writer::{Buffer, Writer};
[INFO] [stdout]    |                            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.72s
[INFO] running `Command { std: "docker" "inspect" "43d11d3c020eda66d808da058ac5a52f6420703db0dc22be33a9056499a95cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43d11d3c020eda66d808da058ac5a52f6420703db0dc22be33a9056499a95cfe", kill_on_drop: false }`
[INFO] [stdout] 43d11d3c020eda66d808da058ac5a52f6420703db0dc22be33a9056499a95cfe