[INFO] fetching crate core_malloc 0.1.0...
[INFO] testing core_malloc-0.1.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate core_malloc 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate core_malloc 0.1.0
[INFO] finished tweaking crates.io crate core_malloc 0.1.0
[INFO] tweaked toml for crates.io crate core_malloc 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate core_malloc 0.1.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 39 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8956ee9cfa67936032044d09f0d6ada2ff8eee7687e8e358c8fa61a738d4b05d
[INFO] running `Command { std: "docker" "start" "-a" "8956ee9cfa67936032044d09f0d6ada2ff8eee7687e8e358c8fa61a738d4b05d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8956ee9cfa67936032044d09f0d6ada2ff8eee7687e8e358c8fa61a738d4b05d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8956ee9cfa67936032044d09f0d6ada2ff8eee7687e8e358c8fa61a738d4b05d", kill_on_drop: false }`
[INFO] [stdout] 8956ee9cfa67936032044d09f0d6ada2ff8eee7687e8e358c8fa61a738d4b05d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 024de372c8850fff01f3afab378baed9be7772431eb35b32370a675640d84267
[INFO] running `Command { std: "docker" "start" "-a" "024de372c8850fff01f3afab378baed9be7772431eb35b32370a675640d84267", kill_on_drop: false }`
[INFO] [stderr]    Compiling abs_mm v0.1.2
[INFO] [stderr]    Compiling core_malloc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `core_alloc_::CoreAllocError: core::error::Error` is not satisfied
[INFO] [stdout]   --> src/core_alloc_.rs:96:16
[INFO] [stdout]    |
[INFO] [stdout] 96 |     type Err = CoreAllocError;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `core::error::Error` is not implemented for `core_alloc_::CoreAllocError`
[INFO] [stdout]   --> src/core_alloc_.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct CoreAllocError;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: required by a bound in `abs_mm::mem_alloc::TrMalloc::Err`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/abs_mm-0.1.2/src/mem_alloc.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 29 |     type Err: error::Error;
[INFO] [stdout]    |               ^^^^^^^^^^^^ required by this bound in `TrMalloc::Err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `core_malloc` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "024de372c8850fff01f3afab378baed9be7772431eb35b32370a675640d84267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "024de372c8850fff01f3afab378baed9be7772431eb35b32370a675640d84267", kill_on_drop: false }`
[INFO] [stdout] 024de372c8850fff01f3afab378baed9be7772431eb35b32370a675640d84267