[INFO] cloning repository https://github.com/FredericDesgreniers/my_web_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FredericDesgreniers/my_web_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Fmy_web_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Fmy_web_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56a84bb8445ee10663f5d0139c8eaab050253bfd
[INFO] testing FredericDesgreniers/my_web_server against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Fmy_web_server" "/workspace/builds/worker-64/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FredericDesgreniers/my_web_server on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FredericDesgreniers/my_web_server
[INFO] finished tweaking git repo https://github.com/FredericDesgreniers/my_web_server
[INFO] tweaked toml for git repo https://github.com/FredericDesgreniers/my_web_server written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate git repo https://github.com/FredericDesgreniers/my_web_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e3997340f7313c51e7374f0609dd573359ae102d3da1ba8e284a7b98c77e4f5
[INFO] running `Command { std: "docker" "start" "-a" "1e3997340f7313c51e7374f0609dd573359ae102d3da1ba8e284a7b98c77e4f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e3997340f7313c51e7374f0609dd573359ae102d3da1ba8e284a7b98c77e4f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e3997340f7313c51e7374f0609dd573359ae102d3da1ba8e284a7b98c77e4f5", kill_on_drop: false }`
[INFO] [stdout] 1e3997340f7313c51e7374f0609dd573359ae102d3da1ba8e284a7b98c77e4f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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=warn" "-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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2975d3c70a683534d491f757063420e415a9404ff5b3eaae0f7a342a1e52e7f
[INFO] running `Command { std: "docker" "start" "-a" "c2975d3c70a683534d491f757063420e415a9404ff5b3eaae0f7a342a1e52e7f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling minify v1.1.1
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling same-file v1.0.3
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling router v0.1.0 (/opt/rustwide/workdir/router)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> router/src/lib.rs:57:26
[INFO] [stdout]    |
[INFO] [stdout] 57 |     endpoint: Option<Box<Endpoint<T, R>>>,
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Endpoint<T, R>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> router/src/lib.rs:60:30
[INFO] [stdout]    |
[INFO] [stdout] 60 |     endpoint_404: Option<Box<Endpoint<T, R>>>,
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Endpoint<T, R>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling walkdir v2.2.5
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling lock_api v0.1.4
[INFO] [stderr]    Compiling miniz_oxide v0.1.3
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.1.3
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.5.2
[INFO] [stderr]    Compiling flate2 v1.0.2
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling crossbeam v0.4.1
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling failure v0.1.2
[INFO] [stderr]    Compiling http v0.1.0 (/opt/rustwide/workdir/http)
[INFO] [stderr]    Compiling pool v0.1.0 (/opt/rustwide/workdir/pool)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> http/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_str_as_bytes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> http/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(try_from)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> pool/src/worker.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 |                     'msg_loop: while let Some(message) = receiver.recv() {
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `http`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c2975d3c70a683534d491f757063420e415a9404ff5b3eaae0f7a342a1e52e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2975d3c70a683534d491f757063420e415a9404ff5b3eaae0f7a342a1e52e7f", kill_on_drop: false }`
[INFO] [stdout] c2975d3c70a683534d491f757063420e415a9404ff5b3eaae0f7a342a1e52e7f
