[INFO] cloning repository https://github.com/cmarshall10450/docker-version
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cmarshall10450/docker-version" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmarshall10450%2Fdocker-version", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmarshall10450%2Fdocker-version'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54b97fdd53c97f93abf371fd39f68818bfaad06b
[INFO] checking cmarshall10450/docker-version against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmarshall10450%2Fdocker-version" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cmarshall10450/docker-version
[INFO] finished tweaking git repo https://github.com/cmarshall10450/docker-version
[INFO] tweaked toml for git repo https://github.com/cmarshall10450/docker-version written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cmarshall10450/docker-version on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cmarshall10450/docker-version 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82d1f510c9572c450884a4b3ad47845c1f8e76c67d9629a6170bf4a32a514644
[INFO] running `Command { std: "docker" "start" "-a" "82d1f510c9572c450884a4b3ad47845c1f8e76c67d9629a6170bf4a32a514644", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82d1f510c9572c450884a4b3ad47845c1f8e76c67d9629a6170bf4a32a514644", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d1f510c9572c450884a4b3ad47845c1f8e76c67d9629a6170bf4a32a514644", kill_on_drop: false }`
[INFO] [stdout] 82d1f510c9572c450884a4b3ad47845c1f8e76c67d9629a6170bf4a32a514644
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63bfb5f6af5f92814bd14c16de8e7c5e4e18277802ad18583c98e0f1c09412b5
[INFO] running `Command { std: "docker" "start" "-a" "63bfb5f6af5f92814bd14c16de8e7c5e4e18277802ad18583c98e0f1c09412b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.57
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking docker-version v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `ArgParse` and `VersionParse` are never constructed
[INFO] [stdout]  --> src/error.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum DockerVersionError {
[INFO] [stdout]   |          ------------------ variants in this enum
[INFO] [stdout] 3 |   ArgParse,
[INFO] [stdout]   |   ^^^^^^^^
[INFO] [stdout] 4 |   VersionParse
[INFO] [stdout]   |   ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DockerVersionError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/command.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 |   file.read_to_string(&mut version);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 21 |   let _ = file.read_to_string(&mut version);
[INFO] [stdout]    |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ArgParse` and `VersionParse` are never constructed
[INFO] [stdout]  --> src/error.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum DockerVersionError {
[INFO] [stdout]   |          ------------------ variants in this enum
[INFO] [stdout] 3 |   ArgParse,
[INFO] [stdout]   |   ^^^^^^^^
[INFO] [stdout] 4 |   VersionParse
[INFO] [stdout]   |   ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DockerVersionError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/command.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 |   file.read_to_string(&mut version);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 21 |   let _ = file.read_to_string(&mut version);
[INFO] [stdout]    |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.70s
[INFO] running `Command { std: "docker" "inspect" "63bfb5f6af5f92814bd14c16de8e7c5e4e18277802ad18583c98e0f1c09412b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63bfb5f6af5f92814bd14c16de8e7c5e4e18277802ad18583c98e0f1c09412b5", kill_on_drop: false }`
[INFO] [stdout] 63bfb5f6af5f92814bd14c16de8e7c5e4e18277802ad18583c98e0f1c09412b5