[INFO] fetching crate fls 0.1.0...
[INFO] checking fls-0.1.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate fls 0.1.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate fls 0.1.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fls 0.1.0
[INFO] finished tweaking crates.io crate fls 0.1.0
[INFO] tweaked toml for crates.io crate fls 0.1.0 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate crates.io crate fls 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded veneer-macros v0.1.0
[INFO] [stderr]   Downloaded compiler_builtins v0.1.47
[INFO] [stderr]   Downloaded sc v0.2.4
[INFO] [stderr]   Downloaded veneer v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0e18f067b9985eef63b227a00bd0aae57a49e1ee155fe85e087a58f7d113724
[INFO] running `Command { std: "docker" "start" "-a" "f0e18f067b9985eef63b227a00bd0aae57a49e1ee155fe85e087a58f7d113724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0e18f067b9985eef63b227a00bd0aae57a49e1ee155fe85e087a58f7d113724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0e18f067b9985eef63b227a00bd0aae57a49e1ee155fe85e087a58f7d113724", kill_on_drop: false }`
[INFO] [stdout] f0e18f067b9985eef63b227a00bd0aae57a49e1ee155fe85e087a58f7d113724
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81bcb2c45b56cce2688e7581e6b675e2e890d66c96c0a1484a79abf14c5dcf4c
[INFO] running `Command { std: "docker" "start" "-a" "81bcb2c45b56cce2688e7581e6b675e2e890d66c96c0a1484a79abf14c5dcf4c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling compiler_builtins v0.1.47
[INFO] [stderr]    Compiling veneer-macros v0.1.0
[INFO] [stderr]    Compiling fls v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking sc v0.2.4
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking veneer v0.1.0
[INFO] [stdout] error: duplicate lang item in crate `std` (which `test` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `veneer` (which `fls` depends on)
[INFO] [stdout]   = note: first definition in `veneer` loaded from /opt/rustwide/target/debug/deps/libveneer-7674b99de1c57aaa.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/07fecb9cf34c4979a772ba38c99d6d9144768413/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1dd6c19f0820d51d.rlib
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `std` (which `test` depends on): `oom`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `veneer` (which `fls` depends on)
[INFO] [stdout]   = note: first definition in `veneer` loaded from /opt/rustwide/target/debug/deps/libveneer-7674b99de1c57aaa.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/07fecb9cf34c4979a772ba38c99d6d9144768413/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1dd6c19f0820d51d.rlib
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: duplicate lang item in crate `panic_unwind` (which `std` depends on): `eh_personality`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `veneer` (which `fls` depends on)
[INFO] [stdout]   = note: first definition in `veneer` loaded from /opt/rustwide/target/debug/deps/libveneer-7674b99de1c57aaa.rmeta
[INFO] [stdout]   = note: second definition in `panic_unwind` loaded from /opt/rustwide/rustup-home/toolchains/07fecb9cf34c4979a772ba38c99d6d9144768413/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-4695c0f6311791db.rlib
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fls` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "81bcb2c45b56cce2688e7581e6b675e2e890d66c96c0a1484a79abf14c5dcf4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81bcb2c45b56cce2688e7581e6b675e2e890d66c96c0a1484a79abf14c5dcf4c", kill_on_drop: false }`
[INFO] [stdout] 81bcb2c45b56cce2688e7581e6b675e2e890d66c96c0a1484a79abf14c5dcf4c