[INFO] fetching crate rc_collections 0.1.0...
[INFO] testing rc_collections-0.1.0 against try#fc4ba03ef77ca5018fb78a097d3b924d30f15bfc+target=i686-unknown-linux-musl for musl_upgrade_1_2_take3
[INFO] extracting crate rc_collections 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rc_collections 0.1.0 on toolchain fc4ba03ef77ca5018fb78a097d3b924d30f15bfc
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rc_collections 0.1.0
[INFO] finished tweaking crates.io crate rc_collections 0.1.0
[INFO] tweaked toml for crates.io crate rc_collections 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rc_collections 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3681a61e75aa625e015e417fed3611ed6cfea947fc314639a3e70f2d93357e6a
[INFO] running `Command { std: "docker" "start" "-a" "3681a61e75aa625e015e417fed3611ed6cfea947fc314639a3e70f2d93357e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3681a61e75aa625e015e417fed3611ed6cfea947fc314639a3e70f2d93357e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3681a61e75aa625e015e417fed3611ed6cfea947fc314639a3e70f2d93357e6a", kill_on_drop: false }`
[INFO] [stdout] 3681a61e75aa625e015e417fed3611ed6cfea947fc314639a3e70f2d93357e6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] e78e8782dd535a34e164c75fcad04cf5202550855beffc4914949460869734f6
[INFO] running `Command { std: "docker" "start" "-a" "e78e8782dd535a34e164c75fcad04cf5202550855beffc4914949460869734f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rc_collections v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "e78e8782dd535a34e164c75fcad04cf5202550855beffc4914949460869734f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e78e8782dd535a34e164c75fcad04cf5202550855beffc4914949460869734f6", kill_on_drop: false }`
[INFO] [stdout] e78e8782dd535a34e164c75fcad04cf5202550855beffc4914949460869734f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 900fb48ee4f05099b066ba65de764ee40b4232d75d5a63fc2a02c24d9f8443f2
[INFO] running `Command { std: "docker" "start" "-a" "900fb48ee4f05099b066ba65de764ee40b4232d75d5a63fc2a02c24d9f8443f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rc_collections v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "900fb48ee4f05099b066ba65de764ee40b4232d75d5a63fc2a02c24d9f8443f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "900fb48ee4f05099b066ba65de764ee40b4232d75d5a63fc2a02c24d9f8443f2", kill_on_drop: false }`
[INFO] [stdout] 900fb48ee4f05099b066ba65de764ee40b4232d75d5a63fc2a02c24d9f8443f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 8b4b71617e09c427ab0a753c40d93aad6a5f5f8c1691b2fa27d97fc193d598dd
[INFO] running `Command { std: "docker" "start" "-a" "8b4b71617e09c427ab0a753c40d93aad6a5f5f8c1691b2fa27d97fc193d598dd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/rc_collections-c935b5d61cad71a1)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test::arc_string_faster ... ok
[INFO] [stdout] test test::rrc_string_faster ... ok
[INFO] [stdout] test test::rc_vec_faster ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8b4b71617e09c427ab0a753c40d93aad6a5f5f8c1691b2fa27d97fc193d598dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b4b71617e09c427ab0a753c40d93aad6a5f5f8c1691b2fa27d97fc193d598dd", kill_on_drop: false }`
[INFO] [stdout] 8b4b71617e09c427ab0a753c40d93aad6a5f5f8c1691b2fa27d97fc193d598dd