[INFO] cloning repository https://github.com/genonullfree/labyrinth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/genonullfree/labyrinth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgenonullfree%2Flabyrinth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgenonullfree%2Flabyrinth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b71186dceefe1d1b21287cfc7f930da6ce6e561e
[INFO] checking genonullfree/labyrinth against try#099af82bc034c1e4895c90e5407fafdd61976cdb for pr-145457
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgenonullfree%2Flabyrinth" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/genonullfree/labyrinth
[INFO] finished tweaking git repo https://github.com/genonullfree/labyrinth
[INFO] tweaked toml for git repo https://github.com/genonullfree/labyrinth written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/genonullfree/labyrinth on toolchain 099af82bc034c1e4895c90e5407fafdd61976cdb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/genonullfree/labyrinth already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded microbit-v2 v0.12.0
[INFO] [stderr]   Downloaded panic-rtt-target v0.1.2
[INFO] [stderr]   Downloaded nrf52833-hal v0.14.1
[INFO] [stderr]   Downloaded riscv-target v0.1.2
[INFO] [stderr]   Downloaded microbit v0.12.0
[INFO] [stderr]   Downloaded critical-section v0.2.7
[INFO] [stderr]   Downloaded microbit-common v0.12.0
[INFO] [stderr]   Downloaded rtt-target v0.3.1
[INFO] [stderr]   Downloaded nrf51-hal v0.14.1
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.8
[INFO] [stderr]   Downloaded usb-device v0.2.8
[INFO] [stderr]   Downloaded lsm303agr v0.2.2
[INFO] [stderr]   Downloaded embedded-dma v0.1.2
[INFO] [stderr]   Downloaded nrf-usbd v0.1.1
[INFO] [stderr]   Downloaded nrf-hal-common v0.14.1
[INFO] [stderr]   Downloaded cortex-m v0.7.5
[INFO] [stderr]   Downloaded nrf51-pac v0.10.1
[INFO] [stderr]   Downloaded az v1.2.0
[INFO] [stderr]   Downloaded heapless v0.7.15
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.1
[INFO] [stderr]   Downloaded nrf52833-pac v0.10.1
[INFO] [stderr]   Downloaded fixed v1.16.0
[INFO] [stderr]   Downloaded riscv v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 168d7509b7f096d7cb484c9306c5f86f6fcf54b780530bf8beb6faa7f80316d7
[INFO] running `Command { std: "docker" "start" "-a" "168d7509b7f096d7cb484c9306c5f86f6fcf54b780530bf8beb6faa7f80316d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "168d7509b7f096d7cb484c9306c5f86f6fcf54b780530bf8beb6faa7f80316d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "168d7509b7f096d7cb484c9306c5f86f6fcf54b780530bf8beb6faa7f80316d7", kill_on_drop: false }`
[INFO] [stdout] 168d7509b7f096d7cb484c9306c5f86f6fcf54b780530bf8beb6faa7f80316d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+099af82bc034c1e4895c90e5407fafdd61976cdb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf231961db8d9c278d9e5695de25064c789c056f722716d5da6b9142cacecf31
[INFO] running `Command { std: "docker" "start" "-a" "bf231961db8d9c278d9e5695de25064c789c056f722716d5da6b9142cacecf31", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling semver v1.0.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling cortex-m v0.7.5
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling labyrinth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking lsm303agr v0.2.2
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling heapless v0.7.15
[INFO] [stderr]     Checking rtt-target v0.3.1
[INFO] [stderr]     Checking panic-rtt-target v0.1.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use microbit::hal::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use microbit::hal::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   --> src/main.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let board = microbit::Board::take().unwrap();
[INFO] [stdout]    |                 ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Display`
[INFO] [stdout]   --> src/main.rs:69:23
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let mut display = Display::new(board.display_pins);
[INFO] [stdout]    |                       ^^^^^^^ use of undeclared type `Display`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/main.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg(feature = "v1")]
[INFO] [stdout]    |       -------------- the item is gated behind the `v1` feature
[INFO] [stdout] 13 | use microbit::{
[INFO] [stdout] 14 |     display::blocking::Display, hal::twi, hal::Timer, pac::twi0::frequency::FREQUENCY_A,
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/main.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(feature = "v2")]
[INFO] [stdout]    |       -------------- the item is gated behind the `v2` feature
[INFO] [stdout] 18 | use microbit::{
[INFO] [stdout] 19 |     display::blocking::Display, hal::twim, hal::Timer, pac::twim0::frequency::FREQUENCY_A,
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout]  5 + use core::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `i2c` in this scope
[INFO] [stdout]   --> src/main.rs:80:46
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let mut sensor = Lsm303agr::new_with_i2c(i2c);
[INFO] [stdout]    |                                              ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: 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 `panic_rtt_target` (which `labyrinth` depends on)
[INFO] [stdout]   = note: first definition in `panic_rtt_target` loaded from /opt/rustwide/target/debug/deps/libpanic_rtt_target-d84405fce23fb775.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/099af82bc034c1e4895c90e5407fafdd61976cdb/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8b5bf3899fe2af46.rlib
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Timer`
[INFO] [stdout]   --> src/main.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut timer = Timer::new(board.TIMER0);
[INFO] [stdout]    |                     ^^^^^ use of undeclared type `Timer`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/main.rs:14:48
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg(feature = "v1")]
[INFO] [stdout]    |       -------------- the item is gated behind the `v1` feature
[INFO] [stdout] 13 | use microbit::{
[INFO] [stdout] 14 |     display::blocking::Display, hal::twi, hal::Timer, pac::twi0::frequency::FREQUENCY_A,
[INFO] [stdout]    |                                                ^^^^^
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/main.rs:19:49
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(feature = "v2")]
[INFO] [stdout]    |       -------------- the item is gated behind the `v2` feature
[INFO] [stdout] 18 | use microbit::{
[INFO] [stdout] 19 |     display::blocking::Display, hal::twim, hal::Timer, pac::twim0::frequency::FREQUENCY_A,
[INFO] [stdout]    |                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0152, E0425, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   --> src/main.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let board = microbit::Board::take().unwrap();
[INFO] [stdout]    |                 ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `labyrinth` (bin "labyrinth" test) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Display`
[INFO] [stdout]   --> src/main.rs:69:23
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let mut display = Display::new(board.display_pins);
[INFO] [stdout]    |                       ^^^^^^^ use of undeclared type `Display`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/main.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg(feature = "v1")]
[INFO] [stdout]    |       -------------- the item is gated behind the `v1` feature
[INFO] [stdout] 13 | use microbit::{
[INFO] [stdout] 14 |     display::blocking::Display, hal::twi, hal::Timer, pac::twi0::frequency::FREQUENCY_A,
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/main.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(feature = "v2")]
[INFO] [stdout]    |       -------------- the item is gated behind the `v2` feature
[INFO] [stdout] 18 | use microbit::{
[INFO] [stdout] 19 |     display::blocking::Display, hal::twim, hal::Timer, pac::twim0::frequency::FREQUENCY_A,
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout]  5 + use core::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `i2c` in this scope
[INFO] [stdout]   --> src/main.rs:80:46
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let mut sensor = Lsm303agr::new_with_i2c(i2c);
[INFO] [stdout]    |                                              ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Timer`
[INFO] [stdout]   --> src/main.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut timer = Timer::new(board.TIMER0);
[INFO] [stdout]    |                     ^^^^^ use of undeclared type `Timer`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/main.rs:14:48
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg(feature = "v1")]
[INFO] [stdout]    |       -------------- the item is gated behind the `v1` feature
[INFO] [stdout] 13 | use microbit::{
[INFO] [stdout] 14 |     display::blocking::Display, hal::twi, hal::Timer, pac::twi0::frequency::FREQUENCY_A,
[INFO] [stdout]    |                                                ^^^^^
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/main.rs:19:49
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(feature = "v2")]
[INFO] [stdout]    |       -------------- the item is gated behind the `v2` feature
[INFO] [stdout] 18 | use microbit::{
[INFO] [stdout] 19 |     display::blocking::Display, hal::twim, hal::Timer, pac::twim0::frequency::FREQUENCY_A,
[INFO] [stdout]    |                                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `labyrinth` (bin "labyrinth") due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "bf231961db8d9c278d9e5695de25064c789c056f722716d5da6b9142cacecf31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf231961db8d9c278d9e5695de25064c789c056f722716d5da6b9142cacecf31", kill_on_drop: false }`
[INFO] [stdout] bf231961db8d9c278d9e5695de25064c789c056f722716d5da6b9142cacecf31