[INFO] fetching crate rfc2047 0.1.1...
[INFO] building rfc2047-0.1.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate rfc2047 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rfc2047 0.1.1
[INFO] finished tweaking crates.io crate rfc2047 0.1.1
[INFO] tweaked toml for crates.io crate rfc2047 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rfc2047 0.1.1 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a50b3cfc750f24526b5e3b7abf6c38486d95b72e37b568b7efdbe5bda661e53d
[INFO] running `Command { std: "docker" "start" "-a" "a50b3cfc750f24526b5e3b7abf6c38486d95b72e37b568b7efdbe5bda661e53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a50b3cfc750f24526b5e3b7abf6c38486d95b72e37b568b7efdbe5bda661e53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a50b3cfc750f24526b5e3b7abf6c38486d95b72e37b568b7efdbe5bda661e53d", kill_on_drop: false }`
[INFO] [stdout] a50b3cfc750f24526b5e3b7abf6c38486d95b72e37b568b7efdbe5bda661e53d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7d2fd0bfb1459a0b8e84d0d22d2840639e5e1ab0a7f509b95ab55709fd7693a
[INFO] running `Command { std: "docker" "start" "-a" "f7d2fd0bfb1459a0b8e84d0d22d2840639e5e1ab0a7f509b95ab55709fd7693a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rfc2047 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/encode.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn rfc2047_encode(mut data: &str) -> Cow<str> {
[INFO] [stdout]   |                                 ^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                                 |
[INFO] [stdout]   |                                 the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn rfc2047_encode(mut data: &str) -> Cow<'_, str> {
[INFO] [stdout]   |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "f7d2fd0bfb1459a0b8e84d0d22d2840639e5e1ab0a7f509b95ab55709fd7693a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7d2fd0bfb1459a0b8e84d0d22d2840639e5e1ab0a7f509b95ab55709fd7693a", kill_on_drop: false }`
[INFO] [stdout] f7d2fd0bfb1459a0b8e84d0d22d2840639e5e1ab0a7f509b95ab55709fd7693a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c7bcac114b5c5b1dc727c1c9bb2cb88eff87b29e1905438e0e78aadaa8b2259
[INFO] running `Command { std: "docker" "start" "-a" "4c7bcac114b5c5b1dc727c1c9bb2cb88eff87b29e1905438e0e78aadaa8b2259", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/encode.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn rfc2047_encode(mut data: &str) -> Cow<str> {
[INFO] [stdout]   |                                 ^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                                 |
[INFO] [stdout]   |                                 the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn rfc2047_encode(mut data: &str) -> Cow<'_, str> {
[INFO] [stdout]   |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rfc2047 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/encode.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn rfc2047_encode(mut data: &str) -> Cow<str> {
[INFO] [stdout]   |                                 ^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                                 |
[INFO] [stdout]   |                                 the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn rfc2047_encode(mut data: &str) -> Cow<'_, str> {
[INFO] [stdout]   |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "4c7bcac114b5c5b1dc727c1c9bb2cb88eff87b29e1905438e0e78aadaa8b2259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c7bcac114b5c5b1dc727c1c9bb2cb88eff87b29e1905438e0e78aadaa8b2259", kill_on_drop: false }`
[INFO] [stdout] 4c7bcac114b5c5b1dc727c1c9bb2cb88eff87b29e1905438e0e78aadaa8b2259