[INFO] fetching crate sarek 0.1.0...
[INFO] testing sarek-0.1.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate sarek 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate sarek 0.1.0
[INFO] finished tweaking crates.io crate sarek 0.1.0
[INFO] tweaked toml for crates.io crate sarek 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sarek 0.1.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 85 packages to latest compatible versions
[INFO] [stderr]       Adding decorum v0.1.3 (available: v0.4.0)
[INFO] [stderr]       Adding env_logger v0.6.2 (available: v0.11.8)
[INFO] [stderr]       Adding parking_lot v0.7.1 (available: v0.12.4)
[INFO] [stderr]       Adding pyo3 v0.5.4 (available: v0.26.0)
[INFO] [stderr]       Adding rand v0.6.5 (available: v0.9.2)
[INFO] [stderr]       Adding smallvec v0.6.14 (available: v1.15.1)
[INFO] [stderr]       Adding uuid v0.7.4 (available: v1.18.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 340bc1f0ccea5d28358019c6ad191037dd5cdac4470f7f2ccb764f07ca58e390
[INFO] running `Command { std: "docker" "start" "-a" "340bc1f0ccea5d28358019c6ad191037dd5cdac4470f7f2ccb764f07ca58e390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "340bc1f0ccea5d28358019c6ad191037dd5cdac4470f7f2ccb764f07ca58e390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "340bc1f0ccea5d28358019c6ad191037dd5cdac4470f7f2ccb764f07ca58e390", kill_on_drop: false }`
[INFO] [stdout] 340bc1f0ccea5d28358019c6ad191037dd5cdac4470f7f2ccb764f07ca58e390
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 089a9a54259a95a3de6ae87a05129f81aef01140256d32c29f02843b0b2249ad
[INFO] running `Command { std: "docker" "start" "-a" "089a9a54259a95a3de6ae87a05129f81aef01140256d32c29f02843b0b2249ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling spin v0.4.10
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/spin-0.4.10/src/lib.rs:6:43
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
[INFO] [stdout]   |                                           ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.54.0; see <https://github.com/rust-lang/rust/pull/85109> for more information
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spin` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "089a9a54259a95a3de6ae87a05129f81aef01140256d32c29f02843b0b2249ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "089a9a54259a95a3de6ae87a05129f81aef01140256d32c29f02843b0b2249ad", kill_on_drop: false }`
[INFO] [stdout] 089a9a54259a95a3de6ae87a05129f81aef01140256d32c29f02843b0b2249ad