[INFO] cloning repository https://github.com/datsimps/microbit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/datsimps/microbit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatsimps%2Fmicrobit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatsimps%2Fmicrobit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db1bcd7dbc7b1f93eaefa27666bfb86e42b67094
[INFO] checking datsimps/microbit against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatsimps%2Fmicrobit" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  91% (887/972)
Updating files:  92% (895/972)
Updating files:  93% (904/972)
Updating files:  94% (914/972)
Updating files:  95% (924/972)
Updating files:  96% (934/972)
Updating files:  97% (943/972)
Updating files:  98% (953/972)
Updating files:  99% (963/972)
Updating files: 100% (972/972)
Updating files: 100% (972/972), done.
[INFO] validating manifest of git repo https://github.com/datsimps/microbit on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/datsimps/microbit
[INFO] finished tweaking git repo https://github.com/datsimps/microbit
[INFO] tweaked toml for git repo https://github.com/datsimps/microbit written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/datsimps/microbit 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded panic-rtt-target v0.1.2
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded rtt-target v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab728ab7aaf917cbaa853ae45c70549665912f9f5a0f33de5e8a02af357a8fbb
[INFO] running `Command { std: "docker" "start" "-a" "ab728ab7aaf917cbaa853ae45c70549665912f9f5a0f33de5e8a02af357a8fbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab728ab7aaf917cbaa853ae45c70549665912f9f5a0f33de5e8a02af357a8fbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab728ab7aaf917cbaa853ae45c70549665912f9f5a0f33de5e8a02af357a8fbb", kill_on_drop: false }`
[INFO] [stdout] ab728ab7aaf917cbaa853ae45c70549665912f9f5a0f33de5e8a02af357a8fbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78d9430fd765a2388039dade8c0668373afee53abb1eb5d238c99af798c6932c
[INFO] running `Command { std: "docker" "start" "-a" "78d9430fd765a2388039dade8c0668373afee53abb1eb5d238c99af798c6932c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.74
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]    Compiling rtt-check v0.1.0 (/opt/rustwide/workdir/src/03-setup)
[INFO] [stderr]     Checking rtt-target v0.3.1
[INFO] [stderr]     Checking panic-rtt-target v0.1.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]     Checking cortex-m-rt v0.7.3
[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[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 `rtt_check` depends on)
[INFO] [stdout]   = note: first definition in `panic_rtt_target` loaded from /opt/rustwide/target/debug/deps/libpanic_rtt_target-05084adf51ab1de2.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/506512391b1a75ae450d36c9420978402a91abcc/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-6701759d8343e913.rlib
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rtt-check` (bin "rtt-check" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rtt-check` (bin "rtt-check") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "78d9430fd765a2388039dade8c0668373afee53abb1eb5d238c99af798c6932c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78d9430fd765a2388039dade8c0668373afee53abb1eb5d238c99af798c6932c", kill_on_drop: false }`
[INFO] [stdout] 78d9430fd765a2388039dade8c0668373afee53abb1eb5d238c99af798c6932c
[INFO] checking datsimps/microbit against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatsimps%2Fmicrobit" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  91% (887/972)
Updating files:  92% (895/972)
Updating files:  93% (904/972)
Updating files:  94% (914/972)
Updating files:  95% (924/972)
Updating files:  96% (934/972)
Updating files:  97% (943/972)
Updating files:  98% (953/972)
Updating files:  99% (963/972)
Updating files: 100% (972/972)
Updating files: 100% (972/972), done.
[INFO] validating manifest of git repo https://github.com/datsimps/microbit on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/datsimps/microbit
[INFO] finished tweaking git repo https://github.com/datsimps/microbit
[INFO] tweaked toml for git repo https://github.com/datsimps/microbit written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/datsimps/microbit 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" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fd031aa1588bb194a5125c2ad6b58476b64a73bcebd040eeeaf84d1757c25c2
[INFO] running `Command { std: "docker" "start" "-a" "2fd031aa1588bb194a5125c2ad6b58476b64a73bcebd040eeeaf84d1757c25c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fd031aa1588bb194a5125c2ad6b58476b64a73bcebd040eeeaf84d1757c25c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fd031aa1588bb194a5125c2ad6b58476b64a73bcebd040eeeaf84d1757c25c2", kill_on_drop: false }`
[INFO] [stdout] 2fd031aa1588bb194a5125c2ad6b58476b64a73bcebd040eeeaf84d1757c25c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b54256c6cef7431a7b52d6cc83c50c48d8b0d7c542d52d4b586a872cdb857d08
[INFO] running `Command { std: "docker" "start" "-a" "b54256c6cef7431a7b52d6cc83c50c48d8b0d7c542d52d4b586a872cdb857d08", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] no edition found in manifest, probably 2015, skipping
[INFO] running `Command { std: "docker" "inspect" "b54256c6cef7431a7b52d6cc83c50c48d8b0d7c542d52d4b586a872cdb857d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b54256c6cef7431a7b52d6cc83c50c48d8b0d7c542d52d4b586a872cdb857d08", kill_on_drop: false }`
[INFO] [stdout] b54256c6cef7431a7b52d6cc83c50c48d8b0d7c542d52d4b586a872cdb857d08